Komatsu 21N-942-3140 Pin
Weight: 227.0 lb
Warranty: SAME AS OEM WARRANTY
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Product Description
The 21N-942-3140 pin, also known as 21N9423140, is a high-quality Komatsu part designed to deliver exceptional performance and durability. It is an essential component that plays a crucial role in the smooth functioning of various Komatsu equipment and machinery.
This pin is expertly crafted using top-grade materials, ensuring its longevity and reliability even in demanding working conditions. Its precise engineering and robust construction make it capable of withstanding heavy loads, extreme temperatures, and repetitive use, making it an ideal choice for industries that demand high-performance equipment.
The 21N-942-3140 pin is designed to fit seamlessly into compatible Komatsu models, providing a secure and reliable connection between different parts. Its easy installation process ensures minimal downtime during maintenance and repairs, saving valuable time and resources for your operations.
This Komatsu part undergoes rigorous quality control measures to meet industry standards and exceed customer expectations. Its exceptional strength and resistance to wear and tear make it a cost-effective solution that reduces the need for frequent replacements, ultimately increasing productivity and reducing operational costs.
Whether you are seeking to replace a worn-out pin or looking for a reliable spare part, the 21N-942-3140 pin is the perfect choice. Trust in the quality and performance of Komatsu parts to keep your equipment running smoothly and efficiently.
Komatsu Pin Specifications & Fitment
What it is: Heavy-equipment pin designed for tight-tolerance pivot joints where wear control and alignment matter.
- Part number: See title
- SKU: KM-21N-942-3140
- Typical use: Boom/arm/bucket linkages, work equipment pivots, and high-wear joints.
Key measurements to confirm
To ensure correct fit, match the following measurements to your machineTMs worn component or OEM spec:
- Inside Diameter (ID): ___
- Outside Diameter (OD): ___
- Overall Length: ___
Quality notes
- Designed for consistent clearance and long service life when installed with proper lubrication.
- Replace pins and bushings as a set when wear is uneven to prevent premature failure.
Installation tip
Measure the bore, pin, and bushing after press-fit. Use proper tooling and lubrication, and re-check end-play after assembly.
Need help confirming dimensions? Send your machine model and the measurements above and weTMll verify fitment.
Komatsu maintenance notes (quick guide)
- Early-life greasing: For excavators, Komatsu guidance calls for greasing work equipment pins every 10 hours for the first 50 hours, and greasing again after water work.
- Clearance control: Komatsu linkage manuals commonly specify pinbushing clearance targets and a typical service limit around 1.0 mm for many joints, often managed with shims.
- Tracked machines: For undercarriage track joints, pin/bushing turning is condition- and wear-window dependent; abrasive sites can accelerate wear substantially.
WQ Certified™ Komatsu Pivot Standard
Standard: WQ-KOM-PIN-01
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