The Eaton Fuller Mainshaft Assembly, part number S-2688 or S2688, is a direct OEM replacement transmission main shaft for heavy-duty manual transmissions. This assembly measures approximately 16.125 inches in length with a 3.25 x 3.25 inch cross-section profile. Pro Gear and Transmission carries this as a genuine Eaton Fuller component. Call us to confirm proper fit for your specific transmission model.
Interchanges:
- 12474615
- 35530714
- 3949040
- 4303404
- 4303913
- 66930
- EF66930
- FUL-S2688
- HFS-2688
- S1550
- S2120
- S2561
- S2688-SP
- SF234
- ZBFS2688
- Mack 3088-S2688
- Fuller S-2559
- Fuller 21328
- Mack 3088-4303404
- Mack 3088-S2559
- Mack 3088-S2561
- Mack 3088-4303913
- Mack 3088-S1550
- Mack 3088-21328
- Mack 3088-S2120
Features
Genuine Eaton Fuller mainshaft assembly for heavy-duty manual transmissions
Part number S-2688 or S2688
Approximate length: 16.125 in.; cross-section: 3.25 x 3.25 in.
Sold individually (unit of measure: each) by Pro Gear and Transmission
Tech Specs
- Length: 16.125 in.
- Cross-section (H x W): 3.25 x 3.25 in.
- OEM Part Number: S-2688 or S2688
Used in 203 Eaton Fuller models
