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Construction Machinery Engine Piston Kit 3804710 3092606 3092720 3092721 Piston for Qst30 Diesel Engine Parts
US$110.00-250.00
6 Pieces
Sample price:US$250.00/piece.Request sample
Product profile
After-sales Service
YesCertification
RoHS, TS16949, ISO 9001, CEApplication
Excavator, Tractor, Truck, CarModel NO.
3092721Part Number
3092721Product Condition
New OEM Equivalent AftermarketEngine
Qst30Wight
2.5kgTransport Package
CartonOrigin
Hubei, ChinaHS Code
8404909000Key features
this piston features high temperature resistance, high pressure resistance, low thermal deformation, and excellent wear resistance.
It maintains stable cylinder compression ratio and combustion efficiency under long-term high-load operation, effectively restoring engine horsepower, torque output, and fuel economy.
This piston is a perfect drop-in replacement for worn or damaged original pistons, widely used in commercial vehicles, marine propulsion systems, and industrial heavy machinery.
Company profile

Business Type: Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs CertifiedNearest Port: Shanghai Port, Ningbo PortAverage Response Time: ≤9.00h CertifiedTerms of Payment: LC, T/T, D/P, etc.
About Our Factory & Business Background
AddressShiyan, Hubei, China
Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays
Minimum Order Quantity1 pc
Our Production Capability & Technical Expertise
Main ProductsAuto Parts
R&D Engineers1 people
Our Industry Experience & Global Business Record
Main MarketsEurope, Southeast Asia/ Mideast, South Asia
Repeat Buyers Choice50%~80%
New Products Launched in Last yearNo
Product Q&A
Q:Why does the engine still smoke after piston replacement?
A:
Persistent smoke is usually caused by unremoved carbon deposits, worn piston rings, aging valve oil seals, or insufficient break-in. It is recommended to replace piston rings and clean combustion chamber carbon synchronously during piston replacement.
Q:What is the main cause of piston ablation and cracking?
A:
Common causes include long-term overheating, poor lubrication, inferior fuel quality, excessive load operation, incorrect injection timing, and clogged cooling passages. Standard maintenance and operation can effectively extend piston life.
Q:Will new pistons affect engine power after installation?
A:
Qualified OEM-spec 3092721 pistons will not damage engine performance. On the contrary, they restore standard cylinder compression and combustion efficiency, effectively improving power, torque and fuel economy.
Send Inquiry
*To:
Shiyan Xinlin Industry and Trading Co., Ltd
Shiyan Xinlin Industry and Trading Co., Ltd*Content:
Supplier replies will be sent to your registered email
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