Automotive Oil Seals for OEM, Trucks & Axles – Reliable Sealing Starts Here

Explore a full range of high-performance automotive oil seals engineered for engines, axles, hubs, and differentials. Whether you’re replacing OEM parts or customizing for high-load applications, Hengoseal delivers precise fit, premium materials, and fast global support—without MOQ limits.

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What Are Automotive Oil Seals and Why They Matter?

Automotive oil seals are critical components that prevent lubricant leakage and protect systems from contaminants. Used in engines, axles, transmissions, and wheel hubs, they ensure long-term sealing under high pressure, heat, and rotational speed.

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Automotive Oil Seals

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Automotive Oil Seals

How to Choose the Right Oil Seal by OEM, Size, or Material

Selecting the correct oil seal involves identifying the part number, understanding the dimensions (ID/OD/thickness), and choosing a material that fits your temperature and fluid compatibility needs.

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  • Toyota Oil Seal – Designed for engine and axle systems under thermal and mechanical stress.

  • Mitsubishi Oil Seal – Perfect-fit OEM replacements for trucks and heavy-duty Mitsubishi vehicles.

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Heavy-Duty Applications: Axle, Differential, and Wheel Hub Seals

Trucks and off-road vehicles demand robust oil seals with high abrasion resistance, double-lip sealing, and superior temperature endurance. This section features the best choices for rear axles, hubs, and wheel-end systems.

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Brand-Specific Sealing Solutions (Toyota, HINO, Mitsubishi)

Many buyers search by vehicle brand or OEM number. These brand-specific guides help you make the right choice with speed and precision.

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Common Oil Seal Failures & How to Fix Them

Even the best seals can fail due to incorrect installation, shaft wear, or environmental damage. Here’s how to avoid and correct the most common issues.

Automotive Oil Seals

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Recommended Automotive Oil Seals Products

Looking for high-performance oil seals that match OEM specs and perform under pressure? Below are some of our most trusted automotive oil seal products, selected based on durability, application compatibility, and buyer demand.

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Οι άνθρωποι ρωτούν επίσης

1. What is an oil seal on a car?
An oil seal on a car is a mechanical component that prevents lubricating oil from leaking out of rotating parts such as the engine crankshaft, gearbox, or wheel hub. It also blocks dust, dirt, and moisture from entering the system, ensuring smooth and clean operation.
2. What are the different types of oil seals?
The main types of oil seals include: TC oil seal (double-lip with metal shell), TG4 oil seal (reinforced for high-pressure/speed), V-ring seal (axial contact type), and Cassette seal (multi-component for heavy-duty use).
3. What is the purpose of an automotive seal?
The purpose of an automotive seal is to contain fluids like oil or grease within moving parts and to block contaminants from entering. Seals maintain pressure, prevent wear, and ensure efficient operation of engine, transmission, and axle systems.
4. What is the main seal on a car engine?
The main seal on a car engine is the rear main crankshaft oil seal, located at the back of the engine where the crankshaft exits the block. It prevents engine oil from leaking out of the crankcase and is essential for proper engine lubrication.
5. What is the crankshaft main oil seal?
The crankshaft main oil seal is a ring-shaped component that fits around the crankshaft, either at the front or rear of the engine. It keeps engine oil inside the crankcase while allowing the crankshaft to spin freely. It's usually made from NBR or FKM rubber with a metal shell.
6. How do you know if your crankshaft oil seal is leaking?
Signs of a leaking crankshaft oil seal include visible oil drips under the engine, a burning oil smell, low oil levels, or oil residue near the transmission bell housing. Severe leaks may cause clutch slippage or engine damage if left untreated.

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