ACCUFAB RACING COY120 Rear Billet Seal Cover 5.0

( Brand: Accufab Racing ), ( Manufacturer Part Number: COY120 ), ( Part Type: Seal Cover ), ( Manufacturer Warranty: Yes )

Review ACCUFAB RACING Billet Rear Main Seal Cover Upgrade 5.0 Gen fits MUSTANG GT 2015–2017

Introducing the Accufab Racing Coy120 Billet Rear Seal Cover, an essential upgrade for the 2015-17 Ford Mustang GT 5.0 engine. This high-performance component is meticulously crafted from billet aluminum, ensuring superior strength and durability compared to the factory plastic cover.

The Accufab Racing Coy120 Billet Rear Seal Cover is designed to provide enhanced sealing capabilities for your Mustang's engine. The cover features an O-ring seal that creates a tight seal around the crankshaft, preventing oil leaks and maintaining optimal engine performance. The billet aluminum material also dissipates heat more effectively than the factory plastic cover, keeping your engine running cooler and more efficiently.

This cover is a direct replacement for the factory part and is engineered to fit perfectly on your Mustang GT 5.0 engine. The CNC machining process ensures a precise fit and finish, while the anodized coating provides a durable, attractive finish that resists corrosion and wear.

Installing the Accufab Racing Coy120 Billet Rear Seal Cover is a straightforward process that can be completed in a short amount of time. The cover comes with all necessary hardware for installation, and clear instructions are provided to make the process as easy as possible for the DIY enthusiast.

Investing in the Accufab Racing Coy120 Billet Rear Seal Cover is an excellent choice for Mustang GT 5.0 owners who demand the best performance and reliability from their engine. With its superior sealing capabilities, improved heat dissipation, and rugged billet aluminum construction, this cover is an essential upgrade that delivers real-world benefits and peace of mind on the track or the street.

The Accufab Racing Coy120 Billet Rear Seal Cover is a popular aftermarket upgrade for the 2015-2017 Ford Mustang GT 5.0L engine. This part is designed to replace the factory cast aluminum rear seal cover with a billet aluminum one, which offers several benefits and drawbacks.

1. Improved Sealing: The billet aluminum design allows for a better seal around the rear main oil seal, reducing the chances of oil leaks. This can lead to improved engine performance and longer engine life.

2. Enhanced Appearance: The billet aluminum cover looks more visually appealing than the stock cast aluminum cover. It gives the engine compartment a more polished and custom look.

3. Better Cooling: The billet aluminum cover allows for better cooling of the rear main oil seal, which can help to prevent oil temperature spikes and improve engine performance.

1. Cost: The Accufab Racing Coy120 Billet Rear Seal Cover is more expensive than the factory cast aluminum cover. This can be a significant investment for some Mustang owners.

2. Installation Complexity: Installing the billet rear seal cover can be a more complicated process than installing the factory cover. It may require the use of specialized tools and additional steps to ensure proper installation.

3. Potential for Damage: The billet aluminum cover is more susceptible to damage than the factory cast aluminum cover. Dropping the engine or using improper tools during installation could result in damage to the cover, which would require replacement.

The Accufab Racing Coy120 Billet Rear Seal Cover is an excellent upgrade for Mustang GT owners who are looking to improve engine performance, prevent oil leaks, and give their engine compartment a more polished appearance. However, it comes with a higher cost and increased complexity during installation compared to the factory cover. Ultimately, the decision to purchase this upgrade depends on the individual's priorities and budget.

If you are a Mustang GT owner who values improved engine performance, preventative maintenance, and a more visually appealing engine compartment, then the Accufab Racing Coy120 Billet Rear Seal Cover is a worthwhile investment. However, if you are on a tight budget or are not comfortable with the installation complexity, then it may be best to stick with the factory cast aluminum cover.

Details:

Accepts all factory crank trigger sensors. Fits all 2011 2017 Coyote blocks, including Ford Racing and 350 5.2 blocks Bear Blocks. Mechanics frequently advise that when a transmission has to be removed for any reason, that's good time replace the rear main seal, even if it isn leaking, because much of disassembly work involved will already done. On most front-wheel-drive vehicles the engine is mounted transversely, so rear of end opposite one with pulleys and drive accessory belt.

In some cases, that can stop or slow leaks. Accufab Racing billet rear main cover with crank seal and o-ring block gasket for 2012 2013 Mustang Boss 302, Ford 2011 2017 5.0 Coyote, 2015 - 2018 GT350 5.2 Voodoo engines F-150 Coyote Not 2018 gen3. Seals can be made of rubber or silicone, and they wear out because age, the rotational forces crankshaft, corrosion from road salt other environmental factors. The thick CNC construction helps support the rear of block and provide a stable housing for Coyote Billet Rear Main Seal Cover 2011 2017 Mustang 5.0/5.2.

An oil leak from the main seal, also known as rear crankshaft will usually drip where transmission connects to engine, though it may show up elsewhere, such on pan. Leak free design uses o-ring, not silicone, for sealing. This design helps prevent leaks and increases block stability. Unlike our competitors rear main seal, Accufab Coyote Billet Rear Main Seal Cover 2011 2017 Mustang 5.0/5.2 does not leak.

Comes with new ARP bolts, Vito o-ring, and seal is pre-installed. For use with all stock and aftermarket crankshafts.

part #: coy120 price

• $2187.00

specifications reppchargers:

• for models: Gt, Mustang
• for years: 2015-2017
• brand: Accufab Racing
• mpn: Coy120
• part type: Seal Cover
• manufacturer warranty: Yes

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• policy: Returns Accepted
• paid by: Seller
• time: 30 Days

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• condition: New
• Air Fuel Delivery > Turbos, Superchargers Intercoolers > Superchargers Parts

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• city: Knoxville, Tennessee
• # reviews: 14587
• rating: 99.9%

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• sold: 0
• started: January 21, 2026
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• options: Ship-to-home
• availability: In Stock