Komatsu D40Q678 Cotter Pin
Weight: 0.03 lb
Warranty: SAME AS OEM WARRANTY
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Product Description
Introducing the D40 q 678 cotter pin, an essential component of Komatsu parts, designed to provide durability and reliability for various applications. This cotter pin is a crucial part of securing and fastening components together, ensuring optimal performance and safety.
Manufactured with precision and expertise, the D40 q 678 cotter pin is engineered to withstand rigorous conditions and heavy-duty usage. Its high-quality construction guarantees longevity, reducing the need for frequent replacements and maintenance costs.
Compatible with a wide range of Komatsu machinery, this cotter pin offers versatility and ease of installation. It is designed to fit seamlessly into your existing equipment, allowing for quick and efficient repairs or replacements.
The D40 q 678 cotter pin is crafted with utmost attention to detail, meeting the highest industry standards. Its exceptional strength and resistance to wear and tear ensure optimal performance even in demanding environments.
With its reliable and sturdy design, this cotter pin provides peace of mind, allowing you to focus on your work without worrying about component failure or breakdowns. It enhances the overall efficiency and productivity of your Komatsu machinery, reducing downtime and increasing operational effectiveness.
Invest in the D40 q 678 cotter pin for a durable and dependable solution to your fastening needs. Trust Komatsu parts to deliver superior quality components that will exceed your expectations and stand the test of time.
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-D40Q678
- 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.
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