M10x1.5x120 Class 9.8 Hex Screw, PAI ESC-0378 (OEM 421GC266M4), Pack of 5
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| Engine family | Mack ASET · Mack E-Tech · Mack E7 |
| Brand | PAI Industries |
| Part Category | Cylinder Head Components |
| Sub-Type | Cylinder Head Fastener |
| Engine Make | Mack |
| Engine Model | ASET · E-Tech · E7 |
Pack of 5.
PAI ESC-0378 is an M10x1.5x120 Class 9.8 Hex Screw. Carbon-steel flanged hex head, external hex drive,M10x1.5 thread and 120mm length. Class 9.8; not fully threaded. Manufacturer-designated parent reference: MACK 421GC266M4.
Manufacturer application categories
MACK E7 ENGINES; MACK E-TECH ENGINES; MACK ASET ENGINE. Confirm the exact required part number and configuration before ordering.
Manufacturer product cross-references
MACK 421GC266M4
Fits:
- MACK E7 ENGINES
- MACK E-TECH ENGINES
- MACK ASET ENGINE
OEM cross-references:
- MACK 421GC266M4
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 |
|---|
| MACK 421GC266M4 |
| PAI ESC-0378 |
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.





