What is the Tri Armor coating on these bearings?

The Tri Armor coating is a multi-layer protective layer applied to the bearings. It's designed to reduce friction and wear, especially during the critical engine break-in period and under demanding operating conditions.

What engines does this Clevite MS909P main bearing set fit?

This set is specifically designed for GMC engines with displacements of 366, 396, 402, 427, and 454 cubic inches. It fits a broad range of vehicle applications using these engine sizes.

Do these bearings come with installation hardware?

This product is a set of main bearings only. Installation hardware, such as main bearing bolts or seals, is typically sold separately and not included with this bearing set.

Specifications

Brand: Clevite
Part #: MS909P
UPC: 027067545046
Package Length: 6.4 in
Package Width: 3.9 in
Package Height: 2.0 in
Package Weight: 1.20 lb
Interchange Part Numbers: [object Object], MB557SI

Clevite Tri Armor GMC Pass & Trk 366/396/402/427/454 Main Bearing Set

Name: Clevite Tri Armor GMC Pass & Trk 366/396/402/427/454 Main Bearing Set
Brand: Clevite
SKU: clevite-clevite-tri-armor-gmc-pass-trk-366-396-402-427-454-main-bearing-set-t14-57501
Price: 85.39 USD
Availability: InStock

$85.39

Only 7 left in stock

Clevite MS909P main bearing set for GMC 366-454 engines. Features Tri Armor coating for improved durability.

Key Features

Fits a wide range of GMC engines including 366, 396, 402, 427, and 454 cubic inch displacements.
Features Clevite's Tri Armor coating for improved durability and wear resistance.
Designed to support the crankshaft and ensure smooth rotation.
Helps reduce friction and wear, particularly during engine break-in and under load.
Contributes to longer engine life and consistent performance.
Fits numerous vehicle makes and models, including Chevrolet, Buick, Cadillac, and AM General.

No-fit, no charge. Wrong part? Send it back, free return label.

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About this part

Product Details

Clevite is a well-known name in engine components, and they're known for making parts that hold up. This main bearing set, part number MS909P, is built for a range of GMC engines, including the 366, 396, 402, 427, and 454 cubic inch displacements. These bearings are crucial for supporting the crankshaft and ensuring it spins smoothly within the engine block.

What sets this set apart is the Tri Armor coating. This is a multi-layer coating designed to help the bearings withstand the harsh conditions inside an engine. It helps reduce friction and wear, especially during the critical break-in period and under heavy loads. This means your engine's main bearings will be well-protected, contributing to a longer engine life and more consistent performance. This set fits a wide variety of vehicles, from older Chevrolet C10s and Camaros to Buick Roadmasters and Cadillac Fleetwoods, making it a solid option for many rebuilds.