Cummins Crankshaft
Your Professional Cummins Crankshaft Supplier
Our goal is to become your true partner in the field of Cummins crankshaft China. Zhejiang Weilin Mechanical Co., Ltd. is a national high-tech enterprise focusing on the production and trade Forged Steel Crankshaft in the field of Construction Machinery, Heavy Trucks, Marine, Generator Sets, Agricultural Machines, Automobiles, Diesel Engines, and etc. We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.
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Crankshaft For Cummins N14|3064291 For Heavy Trucks Excav...ENGINE NO: N14read more
OEM/PART NO: 3064291
Engine type: diesel engine
Crankshaft Material: Forged steel 42CrMo
Warranty: 12 months
MOQ:5pcs -
Crankshaft For Cummins X15|4925761 For Heavy Trucks Excav...ENGINE NO: X15read more
OEM/PART NO: 4925761/4925762/4393462
Engine type: diesel engine
Crankshaft Material: Forged steel 42CrMo
Warranty: 12 months
MOQ:5pcs -
Crankshaft For Cummins QST30|3092921/3092922ENGINE NO: QST30read more
OEM/PART NO: 3092921/3092922
Engine type: diesel engine
Crankshaft Material: Forged steel 42CrMo
Warranty: 12 months
MOQ:5pcs -
Crankshaft For Cummins QSK23|4096111/4096113 For Excavato...ENGINE NO: QSK23read more
OEM/PART NO: 4096111/4096113
Engine type: diesel engine
Crankshaft Material: Forged steel 42CrMo
Warranty: 12 months
MOQ:5pcs -
Crankshaft For Cummins K19|3201082/3096362 For Generator ...ENGINE NO: K19read more
OEM/PART NO: 3096362
Engine type: diesel engine
Crankshaft Material: Forged steel 42CrMo
Warranty: 12 months
MOQ:5pcs -
Crankshaft for Cummins NH220|3029341 For Tractors Heavy T...ENGINE NO: NH220read more
OEM/PART NO: 3029341
Engine type: diesel engine
Crankshaft Material: Forged steel 42CrMo
Warranty: 12 months
MOQ:5pcs -
Crankshaft For Cummins NT855|3608833 For Bulldozers D80/D...ENGINE NO: NT855read more
OEM/PART NO: 3608833
Engine type: diesel engine
Crankshaft Material: Forged steel 42CrMo
Warranty: 12 months
MOQ:5pcs -
Crankshaft For Cummins 6CT8.3|3917320/3918986 For Excavat...ENGINE NO: 6CT8.3read more
OEM/PART NO: 3917320/3918986
Engine type: 6-Cylinder Diesel Engine
Crankshaft Material: Forged steel 40Cr
Warranty: 12 months
MOQ:5pcs -
Crankshaft For Cummins 6BT|3929037/3907804ENGINE NO: 6BTread more
OEM/PART NO: 3907804/3929037
Crankshaft Material: Forged steel 40Cr
Warranty: 12 months
MOQ:5pcs -
Crankshaft For Cummins 4BT|3907803/3929036ENGINE NO: 4BTread more
OEM/PART NO: 3907803、3929036
Engine type: 4‑Cylinder Turbocharged Diesel (4BT3.9 Series)
Crankshaft Material: Forged steel 40Cr
Warranty: 12 months... -
Crankshaft For Cummins B3.3|C6204311111ENGINE NO: B3.3read more
OEM/PART NO: C6204311111
Crankshaft Material: Forged steel 40Cr
Warranty: 12 months
MOQ:5pcs
Why Choose Us
Production Equipment: Our company possesses advanced production equipment, such as CNC grinding machine spindles, CNC grinding machine connecting rods, CNC lathes, CNC engine lathes, CNC crankshaft milling machines, semi-automatic quenching machines, CNC oil hole drilling machines, horizontal drilling and tapping machines, CNC keyway milling machines, crankshaft dynamic balancing machines, and non-destructive testing machines.
Production Market: Our products are well-received in the market and are exported to Europe, America, the Middle East, Southeast Asia, and other countries and regions.
Customized Solutions: We provide OEM drawing processing and personalized parameter customization services. You can receive a tailor-made solution within 72 hours to meet your unique needs.
Our Services: Our professional after-sales service and technical team is dedicated to providing you with professional assistance. We offer a one-year warranty for your peace of mind. If your crankshaft fails during this period due to material or manufacturing defects, we will provide free repair or replacement services.
Advantages of Cummins Crankshaft
Durability
The tough construction provides a long working life and is resistant to wear and tear.
Smooth operation
A fully counterweighted design ensures proper balance, which leads to smoother engine operation and reduced vibration.
Enhanced performance
It converts the piston's reciprocating motion into the rotation needed for the engine, efficiently handling the conversion of force into torque.
Reliability
The combination of high-quality materials and precise engineering results in a reliable engine component.
Specification of Cummins Crankshaft
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ENGINE NO |
N14 |
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OEM/PART NO |
3064291 |
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Crankshaft Material |
Forged steel 42CrMo |
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Engine type |
Diesel engine |
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Anti-rusty Coating |
Yes |
Features of Cummins Crankshaft
Strong material choice: 42CrMo forging gives the shaft the muscle to handle N14 torque without flex.
Durable journals: Each journal is hardened, so the surface lasts much longer under heavy load. Mechanics often note less bearing wear compared with cast versions.
Precision machining: CNC finish keeps roundness under 0.005 mm; bearings last longer and oil stays put.
Dynamic balance: Each crankshaft is precision tested to ensure Balanced to ≤10 g-cm/kg.
Good quality at low price: With the quality that can match the original parts, but at a much cheaper price. Developed according to OEM and easy to install
Supplied gears: We supply the gears to fit this crankshaft and take care of the installation.
Application of Cummins Crankshaft
Marine
Powering marine propellers and other ship systems.
Power generation
Driving generator sets to produce electricity.
Converts motion
The primary function of a Cummins crankshaft is to convert the up-and-down (reciprocating) motion of the pistons into the rotational motion needed to power machinery.
Transmits power
It transmits this rotational power through the flywheel to the drivetrain, which can be a generator, a ship's propeller, or a vehicle's wheels.
Industrial
Operating pumps, compressors, and other heavy industrial equipment.
Oil and gas
Used in applications within the oil and gas industry.
Mining
Powering machinery and equipment used in mining operations.
Agriculture
Driving agricultural tractors and other farm machinery.
Automotive and performance
Used in vehicles, including high-performance and heavy-duty street applications, and for upgrades in racing or towing.

Main bearings: Main bearings support the crankshaft in the block and allow it to rotate smoothly. In the kta50, these are usually made of tri-metal (steel backing, copper-lead intermediate, and a soft overlay), offering both durability and conformity.
Connecting rods and bearings: The connecting rods link the crankshaft to the pistons. They house rod bearings, which are similarly constructed to main bearings and require precise clearance for oil lubrication.
Crankshaft seals: There are seals at the front and rear ends of the crankshaft:
Front crankshaft seal: Prevents oil leakage from the timing cover.
Flywheel and ring gear: The crankshaft flange connects to the flywheel, which acts as a mechanical energy buffer and provides a mounting surface for the ring gear, which engages with the starter motor.
Vibration damper: Mounted on the front end of the crankshaft, the torsional vibration damper (or harmonic balancer) absorbs vibrations that arise from the firing impulses of the engine. If this component fails, it can lead to crankshaft fatigue and eventual fracture.
Packing and Shipping of Cummins Crankshaft
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Packing |
Standard export plywood or raw wood, anti-rust coating, and plastic protection caps.(Plywood is used by default. raw wood is available at an additional cost.) |
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Shipping |
Sea freight as standard |
Certificate

FAQ
We're well-known as one of the most reliable cummins crankshaft manufacturers and suppliers in China. Please feel free to wholesale high quality cummins crankshaft made in China here from our factory. We also accept customized orders.
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