Linde Polymer Tec Co.,Ltd. is one of the most experienced manufacturers and suppliers of truck engine crankshaft seals in China, also supports customized service. Please feel free to buy high quality truck engine crankshaft seals for sale here from our factory.
Truck engine crankshaft seals: high-performance oil-resistant rubber solutions
The core advantages of the product
Excellent performance under harsh working conditions
Temperature range: Fluoroelastomer (FKM) or hydrogenated nitrile rubber (HNBR) is used to withstand extreme temperatures from -40 °C to 250 °C, and adapt to the diesel engine's high temperature and high-pressure environment.
Dynamic tightness: The precision-designed sealing lip and spring compensation structure ensures that the crankshaft remains stable when rotating at high speed (>5000rpm) to prevent oil leakage and contaminant ingress.
Abrasion life: Verified by bench test, the service life exceeds 100,000 kilometers, significantly reducing vehicle maintenance frequency.
| Material |
FKM, HNBR |
| Operating temperature |
-40°C to +250°C |
| Compressive strength |
≤1.5MPa |
| Linear velocity |
≤25m/s |
| Shaft hardness requirements |
≥45HRC |
| Shaft surface roughness |
Ra 0.2~0.8μm |
Full brand coverage and precise adaptation
Applicable models: Cummins X15/QSM11, Volvo D13, Mercedes-Benz OM471, China National Heavy Duty Truck MC series, and other mainstream truck engines, providing a full range of solutions for front/rear crankshaft oil seals.
Various specifications: the inner diameter range is 63mm to 175mm, covering the needs of light to heavy trucks, and supporting non-standard size customization.
Material technology and process innovation
Composite structure: metal skeleton + rubber integrated molding, anti-eccentricity capacity of 0.5mm, adapt to the dynamic deflection of the crankshaft.
Surface treatment: The contact surface of the shaft adopts PTFE coating or laser micro-texture technology, which reduces the friction coefficient by 30% and prolongs the life of the shaft and oil seal.
Why choose our truck engine crankshaft seals?
Compliance certification: Passed ISO 9001, IATF 16949 system certification, and conformed to the national standard of GB/T 13871.1-2022 seals.
Factory-level matching: Provides an alternative that is fully compatible with brands such as Timken, Scania, Isuzu, etc., and is up to 40% more cost-effective.
Fast delivery: 300+ models are in stock, and 72-hour delivery is supported for small-batch trial orders and urgent orders.
Frequently Asked Questions
Q: How to judge the failure of the oil seal?
A: If you find that oil stains accumulate at the front end of the engine and the oil consumption increases abnormally (>0.5L/1000km), you need to check the wear of the sealing lip immediately.
Q: Precautions for installation
Use a special tool (e.g. SKF 733 series) to avoid lip folding.
The shaft end needs to be machined with a 15° guide chamfer and a roughness of Ra≤0.4μm.
Lubricate the sealing lip with oil before installation, and dry press-fitting is strictly prohibited.
Truck crankshaft seals, high-temperature rubber oil seals, engine leak-proof seals
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