Cummins ISX Head Bolt, PAI 040137 (OEM 3678804), Pack of 1
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Check application, pack quantity, and coverageCompare warranty, price, pack quantity, and included components. Confirm the part against your engine details before ordering. Compare warranties →
Used In These Kits
This part is included in 1 engine & overhaul kits — find yours below.
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040116Cummins ISX SERIES HEAD BOLT KIT In stock - No kits match that search.
Suggested Additional Parts
Commonly sold with this product. These parts are sold separately.
| Brand | PAI Industries |
| Engine Make | Cummins |
| Engine Model | ISX |
Pack of 1.
PAI 040137 is an isx head bolt. PAI specifies steel construction, Class 12.9, M18x1.5 threads and 225mm length. PAI states four bolts are required per cylinder head; this listing sells one bolt as Pack of 1. The manufacturer designates product-level OEM 3678804.
Compatible Engines
Manufacturer application categories: Cummins Isx Series. Confirm the complete required part number and listed application before ordering.
Manufacturer product cross-references
Cummins 3678804
Match the complete part number and required specification before ordering.
Fits:
- CUMMINS ISX SERIES
OEM cross-references:
- CUMMINS 3678804
- PAI 040137
Warranty: 24 months
These catalog references may identify this part or components in an assembly. A listed number alone does not confirm whole-assembly interchange or vehicle fitment. Confirm the required part before ordering.
| Number |
|---|
| CUMMINS 3678804 |
| PAI 040137 |
No cross-reference numbers match that search.
Discovery models are listed below. Confirm the complete application and any ESN/CPL or size restrictions before ordering.
Most PAI parts carry a 2-year unlimited-mileage PAI warranty — 3 years on the High Performance tier, 1 year on Excel by PAI. See Warranty & Returns for full coverage terms, or call a specialist to confirm the exact coverage on this part.
PAI published warranty tiers: High Performance — 3-Year · Genuine PAI — 2-Year · Excel — 1-Year, unlimited mileage. The badge beside the price shows this product's recorded term; when no badge is shown, confirm coverage with a specialist.






