4HF1 Crankshaft – OEM-Spec Replacement
Restore the heart of your Isuzu 4HF1 diesel with a precisely machined crankshaft designed for dependable performance and long-term durability. Engineered to meet OE dimensions and balance, it’s an ideal solution for professional rebuilds and high-mileage fleet repairs.
Key Features
- OE-spec fitment for Isuzu 4HF1 diesel engines
- Precision-ground journals for optimal oil film and bearing life
- Balanced for smooth operation and reduced vibration
- Heat-treated surfaces for wear resistance and durability
- Ready for standard-size or service-oversize bearings (verify sizing during assembly)
Part Numbers / Cross-References
Compatibility
Designed for the Isuzu 4HF1 3.9L diesel engine commonly found in light- and medium-duty commercial trucks (model availability varies by market). Always confirm engine code and part number before ordering.
What’s Included
Bearings, bolts, and ancillary components are not included.
Installation Notes
- Measure all journals and select appropriate bearing sizes (standard or oversize)
- Clean oil galleries thoroughly and verify clearances
- Use fresh fasteners and follow factory torque and angle specs
- Professional installation and final balancing recommended
Upgrade your 4HF1 rebuild with a reliable, OE-spec crankshaft that helps restore factory performance and longevity.
