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Isuzu 4BB1 Crankshaft | Forged Steel OEM Replacement for NKR/NPR Trucks

Premium forged steel Isuzu 4BB1 crankshaft with OEM specifications. Bulk order discounts & global shipping available.

Upgrade or rebuild your Isuzu 4BB1 engine with a premium Isuzu 4BB1 Crankshaft from Ruich Value. As a dedicated manufacturer and wholesale supplier of engine components, we offer high-strength, forged 4BB1 crankshafts designed for reliability and longevity in demanding applications. This vital component converts piston power into rotational force, and our precision engineering ensures smooth, dependable operation.  

Key Features & Benefits

  • Superior Strength: Manufactured from high-quality forged steel for exceptional resistance to wear, fatigue, and torsional stress compared to cast alternatives.
  • Precision Manufacturing: CNC machined to meet or exceed original equipment manufacturer (OEM) specifications and tight tolerances. Followed by heat treatment, precise grinding, and polishing of journals.
  • Dynamically Balanced: Electronically balanced to minimize vibration, ensuring smooth engine operation, reduced bearing wear, and enhanced overall performance.
  • Direct Replacement: Designed for compatibility with the Isuzu 4BB1 engine, facilitating straightforward installation during engine overhauls or repairs.
  • Wholesale Availability: Reliable supply and competitive pricing for distributors, engine rebuilders, and fleet maintenance operations.

Product Specifications: Isuzu 4BB1 Crankshaft

SpecificationValue
Engine ModelIsuzu 4BB1
MaterialForged Steel (e.g., 40Cr, 42CrMo, or similar)
Manufacturing ProcessForging, Machining, Heat Treatment, Grinding, Balancing
Main Journal Dia.69 mm (approx. 2.717 in)
Rod Journal Dia.60 mm (approx. 2.362 in)
Stroke110 mm (approx. 4.331 in)
Overall Length~ 615 mm (approx. 24.2 in)
Net Weight~ 18 kg (approx. 39.7 lbs)
Ruich Value Part No.RVC-4BB1-01
Compatible OEM P/N5-12310-161-0
Warranty12 months or 50,000 km (whichever comes first)

Note: Dimensions and OEM part numbers are provided for reference. Always verify compatibility with your specific engine serial number or existing part before ordering.

Engine Compatibility & Applications

This Isuzu 4BB1 Crankshaft is engineered for the Isuzu 4BB1 engine, a robust 3.6L direct injection diesel engine. This engine was widely used in:

  • Isuzu Elf Trucks (NKR, NPR series – primarily models from the late 1970s to mid/late 1980s)
  • Various Industrial Equipment applications

Confirming your engine model is 4BB1 is essential for correct fitment.

Why Choose Ruich Value Crankshafts?

  • Manufacturing Control: Direct oversight from forging to final inspection ensures consistent quality.
  • Wholesale Partnership: We understand the needs of B2B clients, offering reliable supply chains and competitive volume pricing.
  • Durability Focus: Our forged steel crankshafts are built to withstand the rigors of commercial use.
  • Technical Support: Experienced team available to assist with product selection and inquiries.

Other Available Isuzu Crankshaft Models

Ruich Value supplies a comprehensive range of crankshafts for various Isuzu engines. If your required model isn’t listed below, please contact us. We also offer custom crankshaft development from drawings or samples.

Crankshaft ModelCrankshaft ModelCrankshaft ModelCrankshaft Model
4HF14BG14ZD16BG1
4HG1T4FC14ZA16HE1
4HK14JA14ZB16HK1
4HE1T4JB14BD16SD1
4BA14DA14JJ16WA1
4BC2 (DB33)4JB1TG1616WG1
4JG1C2236BB1 (NEW)6HH1
4JG2C2406BB1 (OLD)6QA1
C190600PDB5810PC1
4BB1A4ZE16BF110PB1
6BD110PE1
6SA110PD1
DH10012PC1
12PD1

Contact Us

Ready to order the Isuzu 4BB1 Crankshaft or need wholesale pricing? Reach out to the Ruich Value team today.

We are your reliable partner for high-quality engine components.

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