The Eaton Fuller K-1079 or K1079 Basic Overhaul Kit covers the Fuller 12515 Series transmission, with confirmed fitment in parts manuals for the RTX-12515 and RTXF-12515. The kit includes a broad range of internal components: tapered roller bearings, ball bearings, main case countershaft front bearings, reverse gear idler shaft bearings, input shaft bearing, snap rings, synchronizer springs, sliding clutch, bushings, oil seal, gasket kit (K-2199), O-ring kit (K-1447), bearing and seal sub-kit (K-1863), input shaft assembly (S-1128), adhesive sealant, and instruction letters. A genuine Eaton Fuller part sold by Pro Gear and Transmission. Call us to confirm proper fit for your application.
Interchanges:
- 66350
- EF66350
- HFK-1079
- NAVISTAR 591239C91
Features
Fits Fuller 12515 Series transmissions, confirmed in RTX-12515 and RTXF-12515 parts manuals
Includes main case countershaft front bearings (x2), input shaft bearing (x1), reverse gear idler shaft bearings (x2), and multiple ball and roller bearings
Contains snap rings, synchronizer springs, sliding clutch, and bushings for internal drivetrain rebuild
Bearing and seal sub-kit K-1863 and O-ring kit K-1447 included
Input shaft assembly S-1128 and oil seal included
Used in these Eaton Fuller models
