Yanmar 4TNV94 Engine Crankshaft
Premium Replacement Crankshaft for Reliable Diesel Engine Performance
The NUK Yanmar 4TNV94 Engine Crankshaft is engineered to deliver exceptional strength, precision, and long-term reliability for professional engine rebuilding and repair. Manufactured with advanced forging technology and CNC precision machining, it provides outstanding durability under demanding operating conditions.
Compatible with OEM Part Number 129902-21000, this crankshaft is a direct replacement for Yanmar 4TNV94 diesel engines. It is available in both Forged Steel and Alloy Steel versions, allowing customers to choose the best solution based on their application and budget. Yanmar parts catalogs identify 129902-21000 (and on some engine variants 129902-21050) as the crankshaft assembly reference for 4TNV94 engines.
Every crankshaft is heat treated, precision ground, dynamically balanced, and thoroughly inspected to ensure smooth engine operation, reduced vibration, and extended service life.
Key Features
- Direct OEM Replacement
- OEM Reference: 129902-21000
- Cross Reference: 129902-21050 (certain engine variants)
- Available in Forged Steel and Alloy Steel
- Precision Forged Construction
- CNC Precision Machining
- Dynamic Balance Tested
- Heat Treated for Superior Strength
- Excellent Fatigue & Wear Resistance
- Precision Ground Main and Rod Journals
- 100% Factory Quality Inspection
Frequently Asked Questions (FAQ)
Q1: Is this crankshaft compatible with all Yanmar 4TNV94 engines?
A: It is designed for Yanmar 4TNV94 engines. Please verify your engine model, engine serial number, or OEM part number before purchasing.
Q2: What OEM part number does this crankshaft replace?
A: The primary OEM reference is 129902-21000. Certain engine variants may use 129902-21050 as the crankshaft assembly number.
Q3: What is the difference between forged steel and alloy steel?
A: Forged steel offers higher strength and longer fatigue life, making it ideal for heavy-duty applications. Alloy steel provides excellent durability and value for general-purpose engine rebuilding.
Q4: Is every crankshaft dynamically balanced?
A: Yes. Every NUK crankshaft is dynamically balanced and precision inspected before shipment to ensure smooth engine performance.
Q5: Can you supply matching overhaul parts?
A: Yes. We offer complete engine rebuilding components, including pistons, piston rings, cylinder liners, gasket kits, cylinder heads, connecting rods, main bearings, connecting rod bearings, oil pumps, and water pumps.
Q6: Do you support OEM and private label services?
A: Yes. We provide OEM manufacturing, customized packaging, laser marking, and private label solutions for distributors and wholesalers.
Q7: What warranty do you provide?
A: All NUK crankshafts are backed by a 6-month warranty against manufacturing defects under normal operating conditions.
Q8: Do you ship worldwide?
A: Yes. We export diesel engine parts to customers worldwide through sea freight, air freight, and international express services.
Related Products
- Yanmar 4TNV94 Engine Overhaul Kit
- Yanmar 4TNV94 Full Gasket Kit
- Yanmar 4TNV94 Piston Kit
- Yanmar 4TNV94 Cylinder Liner
- Yanmar 4TNV94 Main Bearing
- Yanmar 4TNV94 Connecting Rod Bearing
- Yanmar 4TNV94 Connecting Rod
- Yanmar 4TNV94 Cylinder Head
- Yanmar 4TNV94 Oil Pump
- Yanmar 4TNV94 Water Pump
Keywords
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