This 7/8-14 x 2-1/4 inch Grade 8 hex locking screw is built for Mack driveline applications, including the TRQ-7220 20-speed transmission, TRL-1076/1078 and TRXL-107 transmissions, TRDL/TRDLG-107/1070 transmissions, TC-150 transfer case, and CRD 117 differential. Its locking feature resists loosening from vibration once threaded into place. Sold as a pack of 5 identical screws.
Interchanges:
- 21078767
- Mack 25093516
- 25108928
- 3AX1749
- 3AX1749X
- 3AX1803X
- 551KC215
This unit is sold in packs of 5.
Features
7/8-14 x 2-1/4 inch thread size and length
Hex head, Grade 8 locking screw
Sold as a pack of 5 identical screws
Fits Mack TRQ-7220 20-speed transmission
Fits Mack TRL-1076/1078 and TRXL-107 transmissions
Fits Mack TRDL/TRDLG-107/1070 transmissions, TC-150 transfer case, and CRD 117 differential
Tech Specs
- Thread and length: 7/8-14 x 2-1/4 inch
- Head type: Hex
- Grade: 8
- Type: Locking
- Sell pack: 5 pieces
Used in 22 Mack models
