The Eaton Fuller K-2277 Basic Rebuild Kit (also listed as K2277) is a comprehensive transmission rebuild kit covering bearings, seals, gaskets, and hardware for a full basic overhaul. The kit includes multiple countershaft and mainshaft bearings, including the main case countershaft front bearing (4308397), reverse gear idler shaft bearing (4308403), and a ball bearing (81504), along with an o-ring kit (K-1450), gasket kit (K-2061), oil seal with slinger (K-2262), a shim kit (K-2805), synchronizer springs, a bushing, snap rings, a retainer, and instruction letters. Cross-references include Navistar OEM number 1685842C91. Call us to confirm proper fit for your application.
Features
Includes multiple countershaft, mainshaft, and idler shaft bearings (part numbers 4308397, 4308403, 81504, and others)
O-ring kit K-1450, gasket kit K-2061, and oil seal with slinger K-2262 included
Synchronizer springs (qty 3), bushing, and snap rings cover internal wear items
Shim kit K-2805 included for proper bearing preload adjustment
Cross-references Navistar OEM number 1685842C91
Includes instruction letters for proper rebuild procedure
