Description
The PAI EBG-8688 is a sealed-type 30 × 72 × 19 mm deep-groove clutch pilot bearing built to BCA 306DD / SKF 6306-2RS standards. It replaces Cummins 120157 / 702770, Fuller 5566505, and Mack 20512915 / 46AX539 in clutch flywheels mated to Cummins 855 and N14, Mack MP7 / MP8, and Volvo D11 / D13 engines.
Signs You Need a New Pilot Bearing
- Difficulty shifting into first or reverse with the clutch pedal depressed
- Grinding noise on clutch engagement
- Clutch drag — transmission won’t release fully when the pedal is down
- High-pitched squeal when the clutch is depressed at idle
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | EBG-8688 |
| Part Type | Clutch Pilot Bearing, Double-Sealed |
| Bore (ID) | 30 mm |
| Outer Diameter (OD) | 72 mm |
| Width | 19 mm |
| Bearing Type | Deep-Groove Radial Ball, 2RS Seals |
| Reference Standard | SKF 6306-2RS / BCA 306DD |
Cross References
This pilot bearing replaces or is equivalent to the following part numbers:
- BCA / SKF: 306DD, 6306-2RS
- Cummins: 120157, 702770, 111767, 104998
- Fuller / Eaton: 5566505, 672547, 712511, 151294
- Mack: 46AX539, 20512915, 3088-5566505
- Volvo: 20512915
- Caterpillar: 6V1394, 3K4060
- Kenworth: 0518810, 05-18810
- Navistar / International: 296773R91, 313339R91, 3157797R91, 436539R91, 69983C91, 773249C91, 785408R91
- GMC: 2947819
Applications
This pilot bearing fits the flywheel pilot bore on:
- Cummins 855 (Big Cam I–IV)
- Cummins N14 (mechanical, Celect, Celect Plus)
- Mack MP7 (11L)
- Mack MP8 (13L)
- Volvo D11
- Volvo D13
Also used as the transmission input-shaft pilot bearing in Eaton-Fuller heavy-duty manual transmissions where 5566505 / 672547 / 712511 is specified.
Verify your flywheel pilot-bore diameter (30 mm / 1.181 in) and existing bearing reference before ordering.









