Diesel Engine Parts
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We are a professional supplier of high-quality diesel engine parts for heavy equipment. This listing is for a brand new, aftermarket replacement piston, part number 6164-31-2121, designed for the Komatsu 6D170, S6D170, SA6D170, and SA12V170 engine series. Our components are manufactured to meet or exceed OEM specifications, ensuring reliable performance and long service life. We serve a global clientele, with regular shipments to North America, Europe, the Middle East, Asia-Pacific, and South America, providing a cost-effective solution for your fleet maintenance needs.
| Specification | Detail |
|---|---|
| Part Number | 6164-31-2121 |
| Engine Model | Komatsu 6D170, S6D170, SA6D170, SA12V170 |
| Material | High-Strength Aluminum Alloy (with Steel Insert) |
| Application | Internal Combustion Engine |
| Condition | Brand New, Aftermarket |
| Ring Set Included | No (Piston Only) |
| Finish | Tin-plated (Optional) / Standard |
This piston is a direct replacement for the following original Komatsu part numbers:
Please verify your specific engine serial number to ensure correct fitment.
Engine Models:
Equipment Applications:
We offer comprehensive logistics solutions to support your operations worldwide. Our stock is ready for immediate dispatch.
Q1: Will this piston fit my Komatsu S6D170 engine directly?
Yes, the 6164-31-2121 is the standard size piston for the S6D170 and SA6D170 engines. It is a direct bolt-in replacement. However, we always recommend checking your engine serial number and comparing the piston diameter and pin bore size to your original part to ensure compatibility, especially if the engine has been previously rebuilt with oversized components.
Q2: What is the recommended installation procedure for this piston?
Professional installation is strongly recommended. Key steps include: 1) Thoroughly cleaning the cylinder bore and piston. 2) Checking the ring end-gap clearance in the cylinder bore. 3) Lubricating the piston pin, rings, and cylinder walls with clean engine oil during assembly. 4) Using a proper ring compressor to install the piston into the cylinder. Always follow the Komatsu service manual for your specific engine model for torque specifications.
Q3: Is a piston ring set included with this product?
No, this listing is for the piston only (part number 6164-31-2121). The piston rings are sold separately. We recommend using a high-quality OEM or equivalent ring set (e.g., Komatsu part number 6151-31-2120 or similar) to ensure proper sealing and oil control. Please contact us if you require a complete piston and ring kit.
1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.
2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.
3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.
4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.
5. Scientific ERP system, easy and fast to locate the parts that customer needs.
6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.
1. Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).
2. Once we get confirmation of payment, we will ship products in 2 days.
3. Our packaging is standard export wooden box or others as your requirement.
4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.
A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.
A: Normally we can supply any quantity if we have in stock.
A: We accept Western Union, T/T, Paypal.
A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.
A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .
A: In the beginning , We will communicate with clients in details to understand what they need .
Before packing , We will check the products and send photos to clients .After confirmation ,
We will packing products well to avoid damage . Once we get tracking number ,
We will send it to customer and keep contact in with clients .
