Description
Product Overview
The Fel-Pro 55379 Engine Auxiliary Shaft Seal is engineered to deliver dependable sealing performance for a variety of automotive engines. Constructed from a high‑grade, oil‑resistant elastomer, this seal maintains its integrity under extreme temperature fluctuations and pressure conditions. Its black, round design matches the original equipment specifications, ensuring a seamless fit that replicates the factory‑installed component. The seal measures precisely to the manufacturer’s dimensions, with a unit count of one, and carries the same part number (55379) as the OEM component, guaranteeing compatibility with the original design. The product is lightweight at just 0.01 ounces, making handling and installation straightforward. Although the part is listed as discontinued by the manufacturer, Fel-Pro continues to support it through its extensive distribution network, providing customers with a reliable source for replacement. The seal has earned a solid reputation among mechanics and DIY enthusiasts, reflected in a 4.3‑star rating from over 80 verified reviews, and it ranks #11 in the Automotive Replacement Full Gasket Sets category on major retail platforms.
![[Product front view showing all components]](https://www.crystashop.store/wp-content/uploads/2026/06/255957e623914299b313d745ffbcbe50.jpg)
Usage
This auxiliary shaft seal is intended for use in engines where the auxiliary shaft, also known as the balance shaft or timing shaft, requires a robust barrier against oil leakage. It is suitable for both gasoline and diesel powerplants, making it a versatile choice for a broad spectrum of vehicles ranging from compact cars to light trucks. Installation typically occurs during routine maintenance, such as timing chain or belt replacement, or when the original seal shows signs of wear, cracking, or oil seepage. The seal’s round profile allows it to accommodate various shaft diameters, while the black elastomeric material resists degradation from oil, coolant, and combustion by‑products. Mechanics appreciate the seal’s ease of installation: it can be pressed into place with standard hand tools, and its design eliminates the need for additional fasteners or complex procedures. For DIY owners, the seal offers a straightforward upgrade that restores engine reliability without extensive disassembly.
Why Choose Us
Choosing the Fel-Pro 55379 seal means selecting a product that meets or exceeds original equipment standards. Fel-Pro’s reputation for quality is built on decades of experience in gasket and seal manufacturing, and each seal undergoes rigorous testing to verify its performance under real‑world conditions. The seal’s material composition is specifically formulated to provide long‑term durability, resisting hardening, cracking, and extrusion even after prolonged exposure to high temperatures. In addition, Fel-Pro offers comprehensive technical support; customers can access detailed installation guides, compatibility charts, and expert advice to ensure the seal fits their specific vehicle model. The company’s commitment to after‑sales service includes a responsive warranty program that addresses any manufacturing defects, giving buyers confidence in their purchase. Moreover, the seal’s design incorporates a precision‑engineered lip that creates a tight, leak‑free seal while allowing for slight shaft movement, reducing wear on adjacent components. This combination of material excellence, engineering precision, and customer support distinguishes the Fel-Pro 55379 from generic alternatives.
Key Features
- High‑grade elastomer resists oil, heat, and chemical exposure for lasting performance
- Exact OEM dimensions ensure a perfect fit without modification
- Round design simplifies installation and reduces the need for special tools
- Provides reliable oil‑tight sealing to protect engine components from leaks
- Supported by Fel-Pro’s technical assistance and warranty for peace of mind
FAQ
What vehicles are compatible with the Fel-Pro 55379 seal?
The seal is compatible with a wide range of makes and models that use the standard auxiliary shaft design. To confirm fit, consult the Fel-Pro compatibility guide or enter your vehicle’s year, make, model, engine, and trim information on the retailer’s website.
Can I install the seal myself, or do I need a professional?
Installation is straightforward and can be performed by experienced DIYers using basic hand tools. The seal is designed for press‑fit installation, but if you are unsure, a professional mechanic can ensure proper seating and torque specifications.
Why is the part listed as discontinued?
Although the original manufacturer has discontinued production, Fel-Pro continues to stock the part through its supply chain. This ensures that customers can still obtain a high‑quality replacement that meets OEM standards.
What warranty does Fel-Pro provide for this seal?
Fel-Pro offers a limited warranty covering defects in material or workmanship. If the seal fails due to a manufacturing issue, Fel-Pro will replace the part or provide a refund, subject to the terms of the warranty policy.
How does this seal compare to generic aftermarket options?
Generic seals may not match the exact dimensions or material quality of the OEM design, potentially leading to premature failure or leaks. The Fel-Pro 55379 seal is engineered to meet OEM specifications, offering superior durability, fit, and performance compared to many off‑brand alternatives.




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