Komatsu 21K-70-72230 Bushing
Warranty: SAME AS OEM WARRANTY
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Product Description
The 21K-70-72230 bushing is a high-quality replacement part designed specifically for Komatsu equipment. It is an essential component that ensures the smooth functioning of various machinery and systems. Engineered with precision, this bushing guarantees optimal performance and longevity.
Crafted from durable materials, the 21K-70-72230 bushing is built to withstand tough operating conditions, providing reliable support and stability. Its robust construction ensures resistance against wear, corrosion, and impact, ensuring the longevity of your Komatsu machine.
This bushing is compatible with a wide range of Komatsu models, making it a versatile choice for various applications. Whether you need to replace a worn-out bushing or perform routine maintenance, the 21K-70-72230 bushing is a reliable solution that meets OEM specifications.
Installing the 21K-70-72230 bushing is a straightforward process, thanks to its precise dimensions and design. It fits seamlessly into the designated slot, ensuring a secure and snug fit. With this bushing in place, you can expect enhanced performance and reduced downtime for your Komatsu equipment.
Trust in the quality and durability of the 21K-70-72230 bushing to keep your Komatsu machine running smoothly. Whether you operate in construction, mining, or any other industry that relies on Komatsu equipment, this bushing is a reliable choice for maintaining the efficiency and productivity of your machinery.
Komatsu Bushing Specifications & Fitment
What it is: Heavy-equipment bushing designed for tight-tolerance pivot joints where wear control and alignment matter.
- Part number: See title
- SKU: KM-21K-70-72230
- 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 machine’s 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 we’ll 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 pin–bushing 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-BUSH-01
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