Marine Engine Crankshaft - Replacement for Yanmar/Volvo Penta Boat Diesels

Premium Marine Engine Crankshaft

The heart of your marine diesel engine – this precision crankshaft delivers reliable power transmission in harsh saltwater conditions.

✔ Dimensions: 13cm (W) × 13cm (H) × 13.9cm (L)
✔ Weight: 1.61kg – Balanced for smooth operation
✔ Material: Forged steel with nitride hardening
✔ Key Features:

• 0.001" (0.025mm) journal tolerance

• Micro-polished bearing surfaces

• Marine-grade corrosion protection

Compatible With:

• Yanmar 4JH/6LY series

• Volvo Penta D4/D6 engines

• Most 4-6 cylinder marine diesels

⚠ Pro Tip:
"Always replace main bearings when installing a new crankshaft."

Why This Crankshaft?

• 30% stronger than cast OEM equivalents

• Dynamic-balanced (±1g at 3,000 RPM)

• Tested under 500-hour salt spray exposure

⚙️ Trusted by marine engine rebuilders worldwide