Description
Front crankshaft oil seal with integrated dust shield for Cummins NH/NT-855 Big Cam and N14 engines with the bull-nose crankshaft. Replaces Cummins 3020183 (also 3020186, 3004317, 213467). Seals the lube-oil cavity at the gear-housing-to-crank interface.
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 136018 |
| Part Type | Front Crankshaft Oil Seal (with dust shield) |
| Replaces OEM | Cummins 3020183 |
| Free ID | 3.625 in (92.07 mm) |
| OD | 4.756 in (120.8 mm) |
| Width | 0.50 in (12.7 mm) |
| Engine Compatibility | Cummins NH/NT-855 (bull-nose); N14 (bull-nose) |
| Type | Type 5 |
Cross References
This part replaces or is equivalent to the following part numbers:
- Cummins: 3020183, 3020186, 3004317, 213467
Applications
This front crankshaft seal fits the following Cummins engines:
- Cummins NH-855 / NT-855 Big Cam I, II, III, IV — bull-nose crankshaft
- Cummins N14 — bull-nose crankshaft variants
Verify your crankshaft style (bull-nose vs flange-nose) before ordering. This seal fits bull-nose cranks only — flange-nose Cummins engines use a different front seal.









