The Eaton Fuller K-4237 or K4237 Basic Rebuild Kit covers the core internal components needed during a transmission overhaul. The bill of materials includes front and rear main case countershaft bearings (part nos. 4308397 and 4308398, two of each), a shielded roller bearing, needle roller bearings, a tapered roller bearing, four standard bearings, nine snap rings across multiple positions, four retaining rings, and a shim kit (K-2805). Three sub-kits are bundled in: an output seal kit (K-4217), a range cylinder O-ring kit (K-4218), and a gasket kit (K-4219). Call us to confirm proper fit for your specific Fuller transmission application before ordering.
Features
Includes front and rear main case countershaft bearings (nos. 4308397 and 4308398), two of each
Shielded roller bearing (4308401) and two needle roller bearings (4308402) included
Nine snap rings and four retaining rings covering multiple internal positions
Bundles output seal kit K-4217, range cylinder O-ring kit K-4218, and gasket kit K-4219
Shim kit K-2805 included for proper bearing adjustment
Sold as a single kit; part number K-4237 or K4237
Tech Specs
- Kit Part Number: K-4237 or K4237
- Main Case Countershaft Bearing - Front: 4308397 (qty 2)
- Main Case Countershaft Bearing - Rear: 4308398 (qty 2)
- Shielded Roller Bearing: 4308401 (qty 1)
- Needle Roller Bearing: 4308402 (qty 2)
- Tapered Roller Bearing: 5556507 (qty 1)
- Bearings (4302074-BOX): qty 4
- Bearing (5566508-BOX): qty 1
- Snap Rings: 14750, 16980, 17399, 19198 (x2), 4302082 (x2), 4302184, 4306308 (nine total across positions)
- Retaining Rings: 4303336 (qty 4)
- Sub-Kit - Output Seal Kit: K-4217
- Sub-Kit - Range Cylinder O-Ring Kit: K-4218
- Sub-Kit - Gasket Kit: K-4219
- Sub-Kit - Shim Kit: K-2805
- Unit of Measure: Each
