Marine Crankshaft 13.9x13x10cm - Yanmar/Volvo Penta Diesel Engine Replacement

High-Performance Marine Crankshaft

Engineered for reliability in saltwater environments, this compact 13.9cm crankshaft delivers optimal power transmission for marine diesel engines.

✔ Precise Dimensions: 13cm (W) × 10cm (H) × 13.9cm (L)
✔ Lightweight Strength: 1.39kg forged steel construction
✔ Critical Specifications:

• 0.025mm journal tolerance

• Nitride-hardened surfaces (58-62 HRC)

• Micro-polished bearing areas

• Marine-grade anti-corrosion treatment

Compatible With:

• Yanmar 4JH series (verify exact models)

• Volvo Penta D4 engines

• Similar 4-cylinder marine diesels

⚠ Technical Note:
"Requires professional installation - always replace main/rod bearings during fitting."

Why Choose This Crankshaft?

• 25% more durable than standard cast versions

• Dynamically balanced for vibration-free operation

• Proven in 1,000+ marine engine rebuilds

🔧 Trusted by marine mechanics worldwide