The CAT C18 crankshaft (1950314) is a forged steel component manufactured from 42CrMo steel. It is built for the C18 engine series, ensuring the strength and durability required for heavy-duty CAT machinery. This model is widely used in CAT 385C/D and 390D excavators, 988H wheel loaders, D9T bulldozers, and also supports power generation units and certain marine auxiliary systems.

Product Specifications

ENGINE NO	C18	Gross weight(kg)	208
OEM/PART NO	1950314,1894918,4685119	Length(mm)	1209.21
Crankshaft Material	Forged steel 42CrMo	Main journal(mm)	120.65
Engine type	diesel engine	Crankpin journal(mm)	97
Application	CAT385C,CAT C18	Stroke(mm)	182.56
Anti-rusty Coating	Yes	Hardness(HRC)	HRC52-58

Production Strength

We focus exclusively on forged steel crankshafts. For the C18 model, raw 42CrMo steel is forged under high pressure to refine the grain flow. After forging, the crankshaft goes through a series of treatments-tempering, induction hardening, and precision grinding. Each step is completed in-house using advanced CNC equipment, ensuring consistency across batches.For this CAT C18 crankshaft, we can provide fitment gears and take care of the installation.

Quality Control

More than 30 inspection procedures are applied before delivery, including:

Ultrasonic & magnetic particle testing – detecting hidden cracks and inclusions
Hardness inspection – confirming a hardened layer depth of approx. 3–5 mm
Dimensional accuracy checks – keeping journals within strict tolerance
Dynamic balancing – residual imbalance ≤10 g·cm/kg, reducing vibration

Inspection records are archived for traceability. Independent third-party reports are also available if required.

CAT C18 crankshaft ISO certification

Applications

Compatible models for CAT C18 crankshaft：

Excavators: CAT 385C, 385D, 390D
Wheel Loaders: CAT 988H
Bulldozers: CAT D9T
Generator Sets: CAT C18 diesel gensets
Marine Auxiliary Systems: In some cases, C18 engines are used for ship auxiliary power (such as emergency generators), subject to CAT marine approval.

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Packaging & Delivery

Packaging: 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.)

Delivery: Stock models usually ship within 72 hours. For larger or custom orders, lead time is scheduled in advance.

Logistics: Sea freight as standard

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FAQ (Answering Common Questions)

Q: Is this CAT C18 crankshaft a direct replacement for OEM part 1950314?

A: Yes, it is manufactured according to CAT OEM reference and fits directly.

Q: What raw material is used for this crankshaft?

A: It is forged from 42CrMo alloy steel, offering higher strength than cast iron alternatives.

Q: Can this C18 crankshaft be used in marine engines?

A: The C18 platform is sometimes adapted for auxiliary marine systems, but CAT marine certification may be required.

Q: Do you provide test reports with shipment?

A: Yes, we provide internal inspection data and, upon request, third-party test reports.

Q: What warranty is offered?

A: All crankshafts are covered by a 12-month warranty against material and process defects.

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