Mack T2080B Transmission Parts Manual
8 Speed Transmission Kits
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 1 | 208SH107A | Kit, Bearing And Seal | Includes (2) 67AX204, (1) 67AX311, (1) 67AX335, (1) 80AX775, (6) 62AX487, (3) 67AX334, (3) 64AX16, (1) 46AX516, (1) A1228H1204, (3) 62AX489, (6) 64AX292, (1) 46AX522, (3) 62AX292, (3) 127539, (1) 629KB411, (1) 207SH31B, (1) 56AX381, (1) 207SH35, (1) 31KD2136, (1) 342SH592, (3) 223KD262P2, (1) 223KD317A, (6) 223KD316A, (3) 223KD262, (1) 223KD241, (1) 107KD242, (1) 107KD116, (1) 107KD118, (3) 107KD157. Interchanges with Mack 208SH107 | $1,645.05 | Add to Cart | |
| 2 | 207SH31B | Kit, Gasket | Includes (1) 629KB335A, (1) 629KB328B, (1) 629KB331A, (1) 629KB53A, (3) 88AX349P3, (1) 88AX454, (1) 88AX463, (1) 56AX552, (1) 5X1083, (1) 56AX558, (1) 56AX559, (1) 56AX560, (1) 56AX561, (1) 56AX568, (1) 56AX569, (3) 56AX539, (1) 56AX557, (1) 56AX436, (1) 17453, (3) 56AX541, (1) 14142, (1) 446GC1103, (1) 56AX381 | $143.17 | Add to Cart | |
| 3 | 342SH592 | Kit, Retaining Ring | Includes (1) 97AX54, (1) 97AX226, (1) 97AX238, (8) 97AX151, (2) 97AX266, (5) 129594, (1) 97AX274, (1) 97AX284, (1) 97AX258, (1) 97AX260, (1) 97AX262, (1) 97AX265, (1) RR-IR36-4, (1) 555AM4 | $118.75 | Add to Cart | |
| 4 | 207SH34 | Kit, Shim | Includes (3) 741KC321CP15, (3) 741KC321CP30, (3) 741KC323P3, (3) 741KC323P6, (3) 741KC323P15, (3) 741KC323P30, (3) 741KC323P6, (3) 741KC321CP3 | $249.51 | Add to Cart |
Input Shaft Components
Click a number on the diagram to highlight that part below.
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 1 | 88AX454 | Seal, Oil | Interchanges with Mack 88AX390P2, National 2822VGR | $38.31 | Add to Cart | |
| 2 | 789KC117 | Sleeve, Oil Pump (non-current) | $38.84 | Add to Cart | ||
| 3 | 403KB295 | Main Drive (w/o Oil Pump Set-up) | Interchanges with Mack 403KB288P2 | $267.27 | Add to Cart | |
| 4 | 56AX543 | O-ring, Cover | Interchanges with Mack 56AX497 | — | Call for availability | |
| 5 | 56AX347 | O-ring, Cover | Sold as a 5-pack | $24.64 | Add to Cart | |
| 6 | 97AX226 | Ring, Retainer | Sold as a 5-pack | $25.99 | Add to Cart | |
| 7 | 46AX516 | Bearing, Main Drive | Interchanges with BCA 214S, Navistar 272574R91 | $79.37 | Add to Cart | |
| 8 | 97AX262 | Ring, Retaining | Sold as a 5-pack | $78.29 | Add to Cart | |
| 9 | 6AX1317X | Screw (7/16in-14 X 1-1/4in) | Interchanges with Mack 4AX4. Sold as a 5-pack | $28.38 | Add to Cart | |
| 10 | 764KB4203E | Gear, Main Drive | Interchanges with Mack 764KB288 | $730.92 | Add to Cart | |
| 11 | 629KB328B | Gasket, Front Cover | Sold as a 5-pack | $55.52 | Add to Cart | |
| 12 | Maxitorque Input Shaft Kit | Kit, Input Shaft | New design. Includes (1) 764KB4203D, (1) 629KB328B, (1) 88AX454, (1) 97AX226, (1) 97AX262, (1) 97AX54, (1) RR-IR36-4, (1) 97AX260, (1) 46AX410, (1) 67AX311. w/o Oil Pump and w/o Flywheel PTO units | $352.74 | Add to Cart | |
| 13 | 67AX311 | Bearing | Interchanges with BCA MA1205EL | $61.41 | Add to Cart | |
| 14 | 97AX125 | Ring, Retaining | $20.20 | Add to Cart | ||
| 15 | 764KB3267A | Gear, Pinion | $448.16 | Add to Cart | ||
| 16 | 97AX260 | Ring, Retaining | Sold as a 5-pack | $43.23 | Add to Cart | |
| 17 | 97AX54 | Ring, Retaining | Sold as a 10-pack | $34.90 | Add to Cart |
Compound and Main Case Assembly
Click a number on the diagram to highlight that part below.
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 1 | 3092340 | Sealant, Silicone Rubber (cartridge Gun Tube 310 Ml) | New design. Interchanges with Mack 20732000 | $195.16 | Add to Cart | |
| 1 | 342SX32 | Sealant, Silicone Rubber | Interchanges with Mack 243SX26, Navistar 474517C2 | $12.93 | Add to Cart | |
| 2 | 301KD43B | Yoke, Clutch Release | $129.97 | Add to Cart | ||
| 3 | 6AX1359X | Screw (3/8in-16 X 1in) | Interchanges with Mack 6AX1274X, Navistar 1670574C1 | $2.77 | Add to Cart | |
| 4 | 43AX41 | Key | Sold as a 5-pack | $14.30 | Add to Cart | |
| 5 | 67AX204 | Bearing | 2 | Interchanges with TOF B-1612, Navistar 550839R91. Sold as a 2-pack | $19.73 | Add to Cart |
| 6 | 88AX349P3 | Seal | Interchanges with Mack 3088-9369. Sold as a 3-pack | $16.07 | Add to Cart | |
| 7 | 44AX115 | Fitting, Grease (1/8in X 27 Thd) | Interchanges with Navistar 109461 | $2.46 | Add to Cart | |
| 8 | 79AX71 | Plug (1-1/4in Cup) | Interchanges with Navistar 23623R1. Sold as a 5-pack | $13.14 | Add to Cart | |
| 9 | 629KB53A | Gasket | Interchanges with Mack 629KB53, Mack 629KB412. Sold as a 6-pack | $80.09 | Add to Cart | |
| 10 | 36AX5 | Washer, Lock | Interchanges with Navistar 1662463C1 | $2.49 | Add to Cart | |
| 11 | 20AX5 | Nut | Interchanges with Navistar 1662461C1 | $2.63 | Add to Cart | |
| 12 | 37AX10 | Washer, Flat | — | Call for availability | ||
| 13 | 37AX98 | Washer | — | Call for availability | ||
| 14 | 90KB111A | Screw, Dowel | $23.76 | Add to Cart | ||
| 15 | 6AX1309X | Screw (3/8in-16 X 1-1/2in) | Interchanges with Navistar 16923R91 | $2.67 | Add to Cart | |
| 16 | 37AX7U | Washer | Interchanges with Mack 39AX2. Sold as a 50-pack | $72.20 | Add to Cart | |
| 17 | 541KB23 | Breather | Interchanges with Navistar 110891H | $7.72 | Add to Cart | |
| 18 | 629KB411 | Gasket, Cover | Interchanges with Mack 629KB417. Sold as a 6-pack | $30.79 | Add to Cart | |
| 19 | 6AX1308X | Screw (3/8in-16 X 1-1/4in) | Interchanges with Navistar 60001R91. Sold as a 5-pack | $19.35 | Add to Cart | |
| 20 | 79AX57X | Plug (7/8in Cup) | Interchanges with Navistar 373553R1. Sold as a 5-pack | $13.78 | Add to Cart | |
| 21 | 604KC34A | Shaft, Clutch Release | $120.15 | Add to Cart | ||
| 22 | 604KC277A | Shaft, Clutch Release | $48.39 | Add to Cart | ||
| 23 | 49AX262 | Plug, Shift Rail | Sold as a 4-pack | $21.05 | Add to Cart | |
| 24 | 629KB335A | Gasket, Cover | Sold as a 5-pack | $63.77 | Add to Cart | |
| 25 | 49AX234Z | Plug, Temperature Sending Unit Boss (1/4in Npt) | Interchanges with Navistar 444631. Sold as a 5-pack | $6.57 | Add to Cart | |
| 26 | 49AX259 | Plug, Pivot | Sold as a 5-pack | $15.25 | Add to Cart | |
| 27 | 7AX264X | Screw, Lock (dog Point) | 2 | Interchanges with Mack 7AX152, Mack 7AX255. Sold as a 10-pack | $61.55 | Add to Cart |
| 28 | 37AX474 | Washer | Sold as a 10-pack | $23.80 | Add to Cart | |
| 29 | 6AX1327 | Screw, Long (1/2in-13 X 2in) | — | Call for availability | ||
| 30 | 6AX1325 | Screw, Short (1/2in-13 X 1-3/4in) | — | Call for availability | ||
| 31 | 14RU265B | Lever, Adjusting (straight Side Spline) | Interchanges with Mack 33MX316 | $141.52 | Add to Cart | |
| 31 | 4RU362 | Lever (involute Spline) | Interchanges with Mack 33MX315, Mack 14RU362 | $73.13 | Add to Cart | |
| 32 | 49AX224 | Plug, Magnetic Filler | Interchanges with Navistar 56070R1 | $4.89 | Add to Cart | |
| 33 | 63AX1041 | Plug, Oil Fill | — | Call for availability | ||
| 34 | 44AX115 | Fitting, Grease (1/8in X 27 Thd) | Interchanges with Navistar 109461 | $2.46 | Add to Cart | |
| 35 | 216KD41 | Valve, Slave (early) | $263.34 | Add to Cart | ||
| 35 | 216KD42B | Valve, Slave (current) | $711.73 | Add to Cart | ||
| 36 | 56AX436 | O-ring, Mounting | Sold as a 10-pack | $24.00 | Add to Cart |
Main Case Components
Click a number on the diagram to highlight that part below.
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 1 | 320KB3136 | Clutch, Sliding | Interchanges with Mack 320KB3117 | $110.32 | Add to Cart | |
| 2 | 97AX238 | Ring, Retaining (use W/ Early Mainshaft) | Sold as a 10-pack | $49.60 | Add to Cart | |
| 2 | 555AM4 | Ring, Retaining (use W/ Current Mainshafts) | Sold as a 5-pack | $17.05 | Add to Cart | |
| 3 | 223KD241 | Washer, Thrust | 1 | $23.50 | Add to Cart | |
| 4 | 751KB3450A | Gear, Mainshaft (4th/8th) | Interchanges with Mack 751KB3340 | $463.37 | Add to Cart | |
| 5 | 223KD317A | Washer, Thrust | 1 | Interchanges with Mack 233KD311 | $37.22 | Add to Cart |
| 6 | 97AX266 | Ring, Retaining | Interchanges with Mack 97AX136. Sold as a 5-pack | $23.73 | Add to Cart | |
| 7 | 223KD253 | Washer, Thrust | Interchanges with Mack 233KD316 | $39.24 | Add to Cart | |
| 8 | 97AX171 | Ring, Retaining | Sold as a 10-pack | $115.01 | Add to Cart | |
| 9 | 223KD316A | Washer, Thrust | 5 | Interchanges with Mack 233KD36. Sold as a 2-pack | $46.79 | Add to Cart |
| 10 | 223KD249 | Washer, Thrust | 5 | $23.60 | Add to Cart | |
| 11 | 751KB3490A | Gear, Mainshaft (3rd/8th) | $441.13 | Add to Cart | ||
| 12 | 97AX151 | Ring, Retaining | 4 | Sold as a 10-pack | $49.27 | Add to Cart |
| 13 | 320KB3137A | Clutch, Sliding | 2 | $171.44 | Add to Cart | |
| 14 | 751KB3372A | Gear, Mainshaft (2nd/7th) | $486.92 | Add to Cart | ||
| 15 | 233KD39 | Washer, Thrust | $26.78 | Add to Cart | ||
| 16 | 751KB3467 | Gear, Mainshaft (1st/6th) | $536.17 | Add to Cart | ||
| 17 | 751KB3396B | Gear, Mainshaft, Reverse | Interchanges with Mack 751KB3396A | $677.85 | Add to Cart | |
| 18 | 615KC4204A | Mainshaft | Interchanges with Mack 615KC4190, Mack 615KC4204 | $515.44 | Add to Cart | |
| 19 | 46AX517 | Bearing, Mainshaft (rear) | Interchanges with Navistar 166389C1 | $230.97 | Add to Cart | |
| 20 | 555AM5 | Ring, Retaining | Sold as a 5-pack | $18.20 | Add to Cart | |
| 21 | 67AX335 | Bearing | $14.78 | Add to Cart | ||
| 22 | 62AX489 | Cone | Interchanges with Timken JLM104948 | $20.86 | Add to Cart | |
| 23 | 64AX294 | Cup | Interchanges with Timken JLM104910 | $12.46 | Add to Cart | |
| 24 | 757KB445 | Gear, Countershaft, Maindrive (T2080B) | $707.72 | Add to Cart | ||
| 25 | 757KB444A | Gear, Countershaft (4th/8th) (T2080B) | $503.84 | Add to Cart | ||
| 26 | 757KB3321 | Gear, Countershaft | $239.35 | Add to Cart | ||
| 27 | 31KD2112 | Spacer, Countershaft (1-5/8in Thk) (T2080B) | — | Call for availability | ||
| 28 | 757KB2110 | Gear, Countershaft (1st/5th) (T2080B) | $217.73 | Add to Cart | ||
| 29 | 757KB3316 | Gear, Countershaft | $145.98 | Add to Cart | ||
| 30 | 31KD2109AP3 | Spacer, Countershaft (1-5/16in Thk) | — | Call for availability | ||
| 31 | 757KB3177 | Gear, Countershaft, Reverse | $122.91 | Add to Cart | ||
| 32 | 605KC474A | Countershaft | $277.88 | Add to Cart | ||
| 33 | 42AX643 | Key | Sold as a 2-pack | $44.09 | Add to Cart | |
| 34 | 62AX487 | Cone | Interchanges with Timken LM501349 | $15.38 | Add to Cart | |
| 35 | 64AX292 | Cup | Interchanges with Timken LM501310 | $9.72 | Add to Cart | |
| 36 | 741KC321CP3 | Shim (.003in Thk) | Interchanges with Mack 741KC321PB3. Sold as a 3-pack | $29.16 | Add to Cart | |
| 36 | 741KC321CP5 | Shim (.005in Thk) | Sold as a 3-pack | $29.16 | Add to Cart | |
| 36 | 741KC321CP6 | Shim (.006in Thk) | Interchanges with Mack 741KC321BP6. Sold as a 3-pack | $29.16 | Add to Cart | |
| 36 | 741KC321CP7 | Shim (.007in Thk) | Sold as a 3-pack | $29.16 | Add to Cart | |
| 36 | 741KC321CP15 | Shim (.015in Thk) | Interchanges with Mack 741KC321BP15. Sold as a 3-pack | $29.16 | Add to Cart | |
| 36 | 741KC321CP30 | Shim (.030in Thk) | Interchanges with Mack 741KC321BP30. Sold as a 3-pack | $29.16 | Add to Cart | |
| 36 | 741KC321P40 | Shim (.040in Thk) | Sold as a 3-pack | $43.46 | Add to Cart | |
| 36 | 741KC321P50 | Shim (.050in Thk) | Sold as a 3-pack | $43.46 | Add to Cart | |
| 36 | 741KC321P60 | Shim (.060in Thk) | Sold as a 3-pack | $43.46 | Add to Cart | |
| 36 | 741KC323AP5 | Shim (.005in Thk) | Sold as a 3-pack | $32.22 | Add to Cart | |
| 36 | 741KC323AP7 | Shim (.007in Thk) | Sold as a 3-pack | $32.22 | Add to Cart | |
| 36 | 741KC323P70 | Shim (.070in Thk) | Sold as a 3-pack | $65.93 | Add to Cart | |
| 36 | 741KC323P80 | Shim (.080in Thk) | Sold as a 3-pack | $65.93 | Add to Cart | |
| 36 | 741KC323P90 | Shim (.090in Thk) | $65.93 | Add to Cart | ||
| 36 | 741KC323AP100 | Shim (.100in Thk) | — | Call for availability | ||
| 37 | 751KC3108A | Retainer | — | Call for availability | ||
| 38 | 223KD262P2 | Washer, Thrust | 3 | Interchanges with Mack 233KD240P2. Sold as a 3-pack | $16.24 | Add to Cart |
| 39 | 751KB284 | Gear, Reverse Idler | $262.61 | Add to Cart | ||
| 40 | 67AX334 | Bearing | $18.28 | Add to Cart | ||
| 41 | 223KD262 | Washer, Thrust | 3 | Interchanges with Mack 233KD240. Sold as a 3-pack | $18.56 | Add to Cart |
| 42 | 611KC230 | Shaft, Reverse Idler | Interchanges with Mack 611KC226 | $54.33 | Add to Cart | |
| 43 | 79AX39 | Plug, Expansion | Sold as a 10-pack | $18.13 | Add to Cart | |
| 44 | 56AX541 | O-ring | Sold as a 5-pack | $18.00 | Add to Cart | |
| 45 | 80AX775 | Race, Bearing | Interchanges with TOFIR1816 | $47.44 | Add to Cart | |
| 46 | 751KB2104 | Gear, Reverse Idler | — | Call for availability | ||
| 47 | 67AX343 | Bearing, Reverse Idler | $38.45 | Add to Cart | ||
| 48 | 611KC33 | Shaft, Reverse Idler | — | Call for availability | ||
| 49 | 207KC22 | Lockplate, Reverse Idler Shaft | — | Call for availability | ||
| 50 | 6AX1296X | Screw, Self Lock | 5/16in-18 x 3/4in | — | Call for availability | |
| 51 | 223KD267 | Washer, Thrust | Sold as a 3-pack | $70.49 | Add to Cart |
Rear Case Components
Click a number on the diagram to highlight that part below.
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 1 | 97AX267 | Ring, Retaining | $10.66 | Add to Cart | ||
| 2 | 46AX517 | Bearing | Interchanges with Navistar 1666389C1, BCA 118L | $230.97 | Add to Cart | |
| 3 | 451KC420B | Retainer | $113.37 | Add to Cart | ||
| 4 | 751KB4128 | Gear, Compound, Main Drive | Use w/ Update Synchronizer & Original Output Shaft | $657.84 | Add to Cart | |
| 4 | 751KB4123 | Gear, Compound, Main Drive (current) | Use w/ Mainshaft 601KC442 & Synchronizer Assembly 320KB3147 | $509.85 | Add to Cart | |
| 4 | 751KB4176 | Gear, Compound, Main Drive | Use w/ 85132094 Synchronizer | $516.93 | Add to Cart | |
| 5 | 97AX171 | Ring, Retaining | Sold as a 10-pack | $115.01 | Add to Cart | |
| 6 | 351KC331B | Plate, Synchronizer | $77.80 | Add to Cart | ||
| 7 | 495KB361 | Disc, Friction | 8 | Interchanges with Mack 495KB363. Sold as a 8-pack | $156.29 | Add to Cart |
| 8 | 495KB367 | Disc, Reaction | 8 | Sold as a 8-pack | $115.24 | Add to Cart |
| 9 | 6AX1606X | Screw, Synchronizer (5/16in-18 X 1-7/8in) | Interchanges with Mack 6AX1582. Sold as a 6-pack | $79.79 | Add to Cart | |
| 10 | 298KB213 | Clamp, Support Pin (front) | Sold as a 6-pack | $75.44 | Add to Cart | |
| 11 | 301KC243C | Sleeve, Synchronizer Support | Sold as a 3-pack | $66.68 | Add to Cart | |
| 12 | 301KC34 | Pin, Synchronizer (lo Clutch) | Sold as a 3-pack | $57.32 | Add to Cart | |
| 13 | 301KC33 | Pin, Synchronizer (hi Clutch) | Sold as a 3-pack | $50.09 | Add to Cart | |
| 14 | 298KB214 | Clamp, Support Pin (rear) | Sold as a 6-pack | $82.27 | Add to Cart | |
| 15 | 53KC486E | Housing, Synchronizer | Interchanges with Mack 53KC486D | $195.00 | Add to Cart | |
| 16 | 21636360 | Clutch, Synchronizer (backtapper Gear) | w/ 320KB464 & 85132094 Synchronizer | $614.28 | Add to Cart | |
| 16 | 320KB459A | Clutch, Synchronizer (current) | Interchanges with Mack 320KB459 | $500.30 | Add to Cart | |
| 17 | 97AX151 | Ring, Retaining (use W/ Mainshaft 601KC441) | Interchanges with Mack 97AX289. Sold as a 10-pack | $49.27 | Add to Cart | |
| 17 | 555AM7 | Ring, Retaining (use W/ Mainshaft 601KC442) | Sold as a 3-pack | $13.20 | Add to Cart | |
| 18 | 107KD247 | Sleeve, Spring | Sold as a 3-pack | $13.99 | Add to Cart | |
| 19 | 223KD249 | Washer, Thrust (use W/ Hub 84KC42) | $23.60 | Add to Cart | ||
| 20 | 97AX284 | Ring, Retaining | Interchanges with Mack 97AX261. Sold as a 5-pack | $26.95 | Add to Cart | |
| 21 | 84KC47 | Hub, Lo Range (current) | $578.39 | Add to Cart | ||
| 21 | 84KC411 | Hub, Lo Range (use W/ 85132094 Synchronizer) | $593.74 | Add to Cart | ||
| 22 | 97AX265 | Ring, Retaining | Sold as a 5-pack | $28.68 | Add to Cart | |
| 23 | 67AX335 | Bearing, Roller | Interchanges with Navistar 375705R91, INA SCH2216 | $14.78 | Add to Cart | |
| 24 | 601KC441 | Mainshaft (early) | $799.99 | Add to Cart | ||
| 24 | 601KC442 | Mainshaft (replaces ) | $796.39 | Add to Cart | ||
| 25 | 751KB3493 | Gear, Lo Range | $904.40 | Add to Cart | ||
| 26 | 97AX274 | Ring, Retaining | Sold as a 5-pack | $39.35 | Add to Cart | |
| 27 | 46AX522 | Bearing (w/ Oil Control Sleeve) | $76.69 | Add to Cart | ||
| 28 | 56AX432 | O-ring | Sold as a 10-pack | $39.10 | Add to Cart | |
| 30 | 153KB15 | Bushing, Speedometer Drive | Interchanges with Navistar 26905H. Sold as a 10-pack | $47.29 | Add to Cart | |
| 31 | 56AX540 | O-ring | Interchanges with Navistar 3213549R1. Sold as a 10-pack | $22.76 | Add to Cart | |
| 32 | 88AX463 | Seal | Interchanges with National 4489VX | $16.50 | Add to Cart | |
| 33 | Yoke | Click on following links for more info:. Splined Drive Yoke Reference Chart | — | Call for availability | ||
| 34 | 297KB219P2 | Clamp | Interchanges with Mack 297KB117BP2 | $17.49 | Add to Cart | |
| 35 | 3AX1803X | Screw (7/8in-14 X 2-1/4in) | Interchanges with Mack 3AX1749X. Sold as a 5-pack | $41.58 | Add to Cart | |
| 36 | 64AX292 | Cup | Interchanges with Timken LM501310 | $9.72 | Add to Cart | |
| 37 | 62AX487 | Cone | Interchanges with Timken LM501349 | $15.38 | Add to Cart | |
| 38 | 757KB3326 | Gear, Maindrive (43 Teeth) | — | Call for availability | ||
| 39 | 605KC4227 | Countershaft (current) (keyed Shaft) | $655.99 | Add to Cart | ||
| 40 | 42AX647 | Key (1/2in X 5-7/16in) | $15.81 | Add to Cart | ||
| 40 | 42AX641 | Key (1/2in X 1-7/8in) | Use w/ Countershaft. Sold as a 5-pack | $28.88 | Add to Cart | |
| 41 | 62AX292 | Cone | Interchanges with Timken 3780, Navistar 400287R91 | $41.23 | Add to Cart | |
| 42 | 64AX16 | Cup | Interchanges with BCA 3720, Navistar 168468R1 | $19.88 | Add to Cart | |
| 43 | 56AX541 | O-ring | Interchanges with Mack 56AX510. Sold as a 5-pack | $18.00 | Add to Cart | |
| 44 | 741KC323P3 | Shim (.003in Thk) | Sold as a 3-pack | $32.22 | Add to Cart | |
| 44 | 741KC323P6 | Shim (.006in Thk) | Sold as a 3-pack | $32.22 | Add to Cart | |
| 44 | 741KC323P15 | Shim (.015in Thk) | Sold as a 3-pack | $32.22 | Add to Cart | |
| 44 | 741KC323P30 | Shim (.030in Thk) | Sold as a 3-pack | $51.28 | Add to Cart | |
| 45 | 451KC3112 | Retainer | — | Call for availability | ||
| 46 | 6AX1317X | Screw (7/16in-14 X 1-1/4in) | Interchanges with Mack 4AX4. Sold as a 5-pack | $28.38 | Add to Cart | |
| 47 | 629KB331A | Gasket | Sold as a 5-pack | $67.49 | Add to Cart | |
| 48 | 320KB464 | Assembly, Synchronizer | Includes (1) 85132094, (3) 301KC243C, (3) 301KC34, (3) 301KC33, (2) 53KC486E | $1,412.17 | Add to Cart | |
| 48 | 85132094 | Assembly, Synchronizer (backtapper Gear) | Includes (8) 495KB361, (8) 495KB367, (3) 301KC35, (3) 107KD247, (3) 6AX1606X, (3) 298KB213, (3) 298KB214, (1) 21636360 | $1,087.02 | Add to Cart | |
| 49 | 208SH99A | Kit, Synchronizer (for 320KB3147) | Includes (8) 495KB361, (8) 495KB367, (3) 301KC33, (3) 301KC34, (3) 301KC35, (3) 107KD247, (3) 301KC243C | $528.96 | Add to Cart | |
| 48 | 320KB3147 | Assembly, Synchronizer (current) | Includes (8) 495KB361, (8) 495KB367, (1) 320KB459A, (2) 53KC486E, (3) 301KC243C, (3) 6AX1606X, (3) 298KB213, (3) 298KB214, (3) 301KC33, (3) 301KC34, (3) 301KC35, (3) 107KD247 | $1,086.39 | Add to Cart | |
| 50 | 48AX17 | Ball, Synchronizer | Interchanges with Mack 48AX11. Sold as a 10-pack | $27.90 | Add to Cart | |
| 51 | 31KD2136 | Retainer | Use w/ 764KB4248 or 764KB4270 | $77.45 | Add to Cart | |
| 52 | 223KD316A | Washer, Thrust | Interchanges with Mack 233KD36. Sold as a 2-pack | $46.79 | Add to Cart | |
| 53 | 56AX539 | O-ring, Countershaft, Forward Bearing Retainer | Interchanges with Mack 56AX401. Sold as a 3-pack | $9.60 | Add to Cart | |
| 54 | 31KD2109AP2 | Spacer, Countershaft (1-5/8in Thk.) | $21.88 | Add to Cart | ||
| 55 | 751KB3495A | Gear, Compound | $547.62 | Add to Cart | ||
| 56 | 320KB3141 | Clutch | $291.09 | Add to Cart | ||
| 57 | 788KC286 | Sleeve | $199.82 | Add to Cart | ||
| 58 | 46AX538 | Bearing, Roller | $60.65 | Add to Cart | ||
| 59 | 757KB4106 | Gear, Countershaft, Auxiliary (keyed) | Interchanges with Mack 757KB4118 | $741.49 | Add to Cart | |
| 59 | 22031266 | Gear, Countershaft, Auxiliary (splined) (current) | $600.25 | Add to Cart | ||
| 60 | 605KC4134 | Kit, Countershaft, Compound (w/ Keyed Shaft) | Includes (1) 605KC4227, (1) 757KB4106, (2) 42AX641 | $1,026.42 | Add to Cart | |
| 61 | 751KB2104 | Gear, Reverse Idler | — | Call for availability |
Synchronizer Update
Click a number on the diagram to highlight that part below.
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 1 | 320KB464 | Assembly, Synchronizer (complete) | Includes (1) 85132094, (3) 301KC243C, (3) 301KC34, (3) 301KC34, (2) 53KC486E | $1,412.17 | Add to Cart | |
| 1 | 320KB3147 | Assembly, Synchronizer (replaces 320KB3140C) | Includes (8) 495KB361, (8) 495KB367, (1) 320KB459A, (2) 53KC486E, (3) 301KC243C, (3) 6AX1606X, (3) 298KB213, (3) 298KB214, (3) 301KC33, (3) 301KC34, (3) 301KC35, (3) 107KD247 | $1,086.39 | Add to Cart | |
| 2 | 751KB4128 | Gear, Main Drive | Use with Original Mainshaft | $657.84 | Add to Cart | |
| 2 | 751KB4123 | Gear, Main Drive | Use with Mainshaft Update | $509.85 | Add to Cart | |
| 2 | 751KB4176 | Gear, Main Drive (used W/ 320KB464 Synchronizer) | $516.93 | Add to Cart | ||
| 3 | 84KC47 | Hub, Lo Range (replaces 84KC42) | $578.39 | Add to Cart | ||
| 3 | 84KC411 | Hub, Lo Range (used W/ 85132094 Synchronizer) | $593.74 | Add to Cart | ||
| 4 | 107KD247 | Sleeve, Spring | Sold as a 3-pack | $13.99 | Add to Cart | |
| 5 | 301KC35 | Sleeve, Spring | Sold as a 3-pack | $96.38 | Add to Cart | |
| 6 | 21636360 | Clutch, Synchronizer (backtapper Gear) | Used w/ 320KB464 & 85132094 Synchronizer | $614.28 | Add to Cart | |
| 6 | 320KB459A | Clutch, Synchronizer (current) | Interchanges with Mack 320KB459 | $500.30 | Add to Cart | |
| 7 | 495KB361 | Disc, Friction | 8 | Interchanges with Mack 495KB363. Sold as a 8-pack | $156.29 | Add to Cart |
| 8 | 495KB367 | Disc, Reaction | 8 | Sold as a 8-pack | $115.24 | Add to Cart |
| 9 | 6AX1606X | Screw, Synchronizer (5/16in-18 X 1-3/4in) | Interchanges with Mack 6AX1582. Sold as a 6-pack | $79.79 | Add to Cart | |
| 10 | 298KB213 | Clamp, Support Pin (front) | Sold as a 6-pack | $75.44 | Add to Cart | |
| 11 | 301KC243C | Sleeve, Synchronizer Support | Sold as a 3-pack | $66.68 | Add to Cart | |
| 12 | 301KC34 | Pin, Synchronizer (lo Clutch) (update) | Sold as a 3-pack | $57.32 | Add to Cart | |
| 13 | 301KC33 | Pin, Synchronizer (hi Clutch) (update) | Sold as a 3-pack | $50.09 | Add to Cart | |
| 14 | 298KB214 | Clamp, Support Pin (rear) | Sold as a 6-pack | $82.27 | Add to Cart | |
| 15 | 53KC486E | Housing, Synchronizer | Interchanges with Mack 53KC486D | $195.00 | Add to Cart | |
| 16 | Synchronizer Upgrade Kit | Kit, Synchronizer Upgrade | Includes (1) 84KC411, (1) 751KB4176, (1) 320KB464 | $2,506.04 | Add to Cart |
Front Shifter Components
Click a number on the diagram to highlight that part below.
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 1 | 49AX259 | Plug | Sold as a 5-pack | $15.25 | Add to Cart | |
| 2 | 21AX918 | Nut | — | Call for availability | ||
| 3 | 36AX5 | Washer, Lock (1/2in) | Interchanges with Navistar 1662463C1 | $2.49 | Add to Cart | |
| 4 | 35AX1446X | Washer | Sold as a 5-pack | $16.25 | Add to Cart | |
| 5 | 37AX7U | Washer | Sold as a 50-pack | $72.20 | Add to Cart | |
| 6 | 48AX19 | Ball, Interlock (13/16in Dia.) | Sold as a 3-pack | $11.79 | Add to Cart | |
| 7 | 301KC248 | Pin, Shift Rail Interlock | Sold as a 5-pack | $19.95 | Add to Cart | |
| 8 | 107KD157 | Spring, Shift Rail (till 8/15/2000) | Sold as a 6-pack | $23.88 | Add to Cart | |
| 8 | 107KC256 | Spring, Shift Rail (8/16/2000 And Newer) | — | Call for availability | ||
| 9 | 48AX17 | Ball, Shift Rail (3/8in Dia.) | Sold as a 10-pack | $27.90 | Add to Cart | |
| 10 | 31KD2169 | Spacer | $38.68 | Add to Cart | ||
| 11 | 521KC114 | Rocker | — | Call for availability | ||
| 12 | 311KC215 | Bolt, Hex Head (1/2-20in X 2-1/2in) | $22.46 | Add to Cart | ||
| 13 | 311KC28A | Pin | $39.45 | Add to Cart | ||
| 14 | 521KC216 | Rocker, Range Shift | — | Call for availability | ||
| 15 | 36AX3 | Washer (13/32in Id X 3/4in Od) | $1.33 | Add to Cart | ||
| 16 | 20AX3 | Nut (3/8in-24 Nf) | $2.29 | Add to Cart | ||
| 17 | 591KC3166 | Rail, Shift (4th /5th) | — | Call for availability | ||
| 18 | 541KB25 | Breather | Sold as a 5-pack | $72.85 | Add to Cart | |
| 19 | 56AX436 | O-ring, Lo/direct Range Shift | Sold as a 10-pack | $24.00 | Add to Cart | |
| 20 | 575KB3303C | Fork | $204.75 | Add to Cart | ||
| 21 | 7AX264X | Screw | Sold as a 10-pack | $61.55 | Add to Cart | |
| 22 | 411KC18A | Plunger | $22.04 | Add to Cart | ||
| 23 | 107KD118 | Spring | Sold as a 5-pack | $31.10 | Add to Cart | |
| 24 | 575KB3306B | Fork, Shift (1st Reverse) | $172.77 | Add to Cart | ||
| 25 | 699KC328 | Shifter (1st Reverse) | — | Call for availability | ||
| 26 | 107KD116 | Spring | Sold as a 5-pack | $15.75 | Add to Cart | |
| 27 | 48AX17 | Ball | Sold as a 10-pack | $27.90 | Add to Cart | |
| 28 | 591KC3164A | Rail, Shift (1st/Reverse) | — | Call for availability | ||
| 29 | 575KB3320D | Fork | $157.05 | Add to Cart | ||
| 30 | 591KC3165A | Rail, Shift (2nd/3rd) | — | Call for availability | ||
| 31 | 699KC329A | Shifter (4th/5th) | — | Call for availability | ||
| 32 | 79AX57X | Plug | Sold as a 5-pack | $13.78 | Add to Cart | |
| 33 | 629KB411 | Gasket | Sold as a 6-pack | $30.79 | Add to Cart | |
| 34 | 629KB250 | Gasket, Shifter | Sold as a 5-pack | $29.92 | Add to Cart |
Rear Shifter Components
Click a number on the diagram to highlight that part below.
| Item | Part No. | Description | Qty | Notes | Price | |
|---|---|---|---|---|---|---|
| 1 | 97AX113 | Ring, Retaining (1-1/4in Id) | Sold as a 5-pack | $13.05 | Add to Cart | |
| 2 | 56AX568 | 0-RING (1-7/16in OD-1-3/16in Id) | 2 | Interchanges with Mack 56AX589. Sold as a 10-pack | $26.90 | Add to Cart |
| 3 | 336KC221 | Plug, Shift Cover (3/4in Id) | — | Call for availability | ||
| 4 | 591KC3177 | Rail, Forward-reverse (multi-speed) | — | Call for availability | ||
| 5 | 14765 | O-ring (1in Id X 1/4in Od) | 2 | $2.70 | Add to Cart | |
| 6 | 575KB467A | Fork, Hi-reverse | Interchanges with Mack 575KB467 | $429.21 | Add to Cart | |
| 7 | 575KB457 | Fork, Range (hi-lo) | Interchanges with Mack 575KB485 | $382.65 | Add to Cart | |
| 8 | 56AX557 | O-ring (2-5/16in Id X 2-1/2in Od) | Sold as a 10-pack | $29.30 | Add to Cart | |
| 9 | 591KC2370 | Asssembly, Rail | $190.53 | Add to Cart | ||
| 10 | Range Cylinder O-Ring Kit | Kit, O-ring Range | Includes (1) 446GC1103, (1) 56AX558, (1) 56AX559, (1) 56AX561, (1) 17453, (1) 56AX557 | $10.18 | Add to Cart | |
| 11 | 7AX264X | Screw | Sold as a 10-pack | $61.55 | Add to Cart | |
| 12 | 63AX6 | Bushing, Reducer (1/4-1/8in Npt) | — | Call for availability | ||
| 13 | 745-230809 | Fitting | Sold as a 5-pack | $18.45 | Add to Cart | |
| 14 | 551KC28 | Screw (3/8-16 Nc X 1-1/4in) | — | Call for availability | ||
| 15 | 56AX381 | O-ring | Interchanges with CAT 0336042. Sold as a 10-pack | $40.70 | Add to Cart | |
| 16 | 1MR3482M | Switch, Back-up (w/connecter) | Normally Open. Interchanges with Mack 1MR3483M | $38.46 | Add to Cart | |
| 17 | 629KB335A | Gasket, Cover Rear | Sold as a 5-pack | $63.77 | Add to Cart | |
| 18 | 591KC3180 | Rail | — | Call for availability | ||
| 19 | 446GC1103 | O-ring | Sold as a 10-pack | $27.20 | Add to Cart | |
| 20 | 56AX557 | O-ring | Sold as a 10-pack | $29.30 | Add to Cart | |
| 21 | 541KB19 | Breather | Sold as a 5-pack | $21.67 | Add to Cart | |
| 22 | 55KC420 | Cylinder, Range | $305.35 | Add to Cart | ||
| 23 | 56AX533 | O-ring | $1.96 | Add to Cart | ||
| 24 | 56AX561 | O-ring | Sold as a 10-pack | $36.40 | Add to Cart | |
| 25 | 336KC335 | Piston, Range | New design | — | Call for availability | |
| 26 | 56AX559 | O-ring | Sold as a 10-pack | $35.30 | Add to Cart | |
| 27 | 21AX360 | Nut | Sold as a 5-pack | $13.60 | Add to Cart | |
| 28 | 33KC334 | Piston, Range | — | Call for availability | ||
| 29 | 17453 | O-ring | $5.35 | Add to Cart | ||
| 30 | 56AX558 | O-ring | Sold as a 10-pack | $38.80 | Add to Cart | |
| 32 | 6AX1710 | Bolt | — | Call for availability | ||
| 33 | 502KB113 | Dowel | — | Call for availability |
No parts match that search — try the part number with no dashes.
This is the illustrated parts breakdown for the Mack T2080B Transmission — every part in these diagrams, matched to our live inventory. We stock 251 of the 289 parts above; click any part number to view it, or add it straight to your cart. Click a number on any diagram to jump to that part.
More Mack parts manuals: Mack Transmission Parts Manuals · Mack Differential Parts Manuals