Sealed Power 5090MA Engine Crankshaft Main Bearing Set

OE Quality 60-Day Returns

Sealed Power 5090MA Engine Crankshaft Main Bearing Set

Brand	Sealed Power 5090MA
Application	O.e. replacement 1980 - early 85
Displacement	2.8l (173)
Engine Family	V6
Manufacture	Chevrolet
Material	A-series aluminum bearings
Set Type	Main set
Sizes	Std-.25-.50-.75-1.00mm
Fits	Buick, Cadillac, Chevrolet, GMC, Jeep, Oldsmobile, and Pontiac · 68 vehicles

OE replacement. Main bearing set for standard and undersize applications.

A-Series aluminum bearings. Built with advanced materials for demanding engine use.

ISO & QS certified manufacturing. Made under certified processes for consistent quality.

Cross-references 4M1494P, 2206P and BC378J for the same application. See all 10.

$82.64Free shipping

In stock · usually ships same day before 1pm CST

Step 1 — Confirm fitment

Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment

Verify this part fits before purchasing — free returns if it doesn't

Step 2 — Quantity

Free shipping to the continental U.S.

Free returns within 60 days if it doesn't fit when fitment is verified.

Not what you need? See all Engine Crankshaft Main Bearing Set options

Sealed Power 5090MA Main Bearing Set

The Sealed Power 5090MA engine crankshaft main bearing set is an OE replacement for Chevrolet 2.8L V6 applications from 1980 through early 1985. Built with A-Series aluminum bearings, it is intended for standard-size crankshaft service where accurate bearing fit and consistent oil clearance matter.

Key Features

Engine crankshaft main bearing set for Chevrolet 2.8L V6 engines
A-Series aluminum bearings for OE-style service replacement
Standard main set configuration
Size range listed as Std-.25-.50-.75-1.00MM
Manufactured to Sealed Power quality standards using ISO and QS certified processes
Part number 5090MA for easy catalog matching

Detailed Description

Sealed Power 5090MA is a main bearing set for Chevrolet 2.8L (173) V6 engines used in a wide range of 1980-1985 passenger cars and light trucks. It is a direct-fit OE replacement for applications such as Chevrolet Citation, Camaro, S10, S10 Blazer, Pontiac Firebird, and Buick Skylark, along with other listed GM and Jeep models using the same shaft size and standard bearing configuration. This part number, 5090MA, is also useful when cross-checking service records or rebuilding an engine that requires standard main bearings with A-Series aluminum construction.

This part cross-references Sealed Power service equivalents such as MS1494P and MB427AM for the same application.

What It Is Used For

Replacing worn or scored crankshaft main bearings
Restoring proper crankshaft support in a 2.8L Chevrolet V6
Addressing low oil pressure caused by excessive bearing clearance
Correcting engine noise related to main bearing wear
Supporting rebuilds on 1980-1985 GM and Jeep applications listed in fitment

Installation Notes and Tips

Verify crankshaft journal size before installation and match the bearing size to the measured shaft condition. The fitment notes specify a 2.4937 in to 2.4946 in shaft size, without groove, with standard configuration. Clean all bearing saddles and oil passages thoroughly, and confirm clearances with proper measuring tools during assembly. Use the vehicle-specific fitment data for Chevrolet Citation, Camaro, S10, Buick Century, Pontiac Firebird, and other listed models before ordering.

Quality Assurance

Sealed Power parts are produced with modern materials and ISO- and QS-certified manufacturing practices to meet the demands of current engine service work. The 5090MA main bearing set is built for OE-style replacement use in Chevrolet 2.8L V6 applications.

This part fits 68 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Liters	Cylinders	Notes
1985	Buick	Century	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1985	Buick	Skylark	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1985	Cadillac	Cimarron	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1985	Chevrolet	Camaro	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1985	Chevrolet	Cavalier	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1985	Chevrolet	Celebrity	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1985	Chevrolet	Citation II	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1985	Chevrolet	S10	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1985	Chevrolet	S10 Blazer	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1985	GMC	S15	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1985	GMC	S15 Jimmy	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1985	Jeep	Cherokee	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1985	Jeep	Wagoneer	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1985	Oldsmobile	Cutlass Ciera	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1985	Oldsmobile	Firenza	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1985	Pontiac	6000	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1985	Pontiac	Fiero	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1985	Pontiac	Firebird	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1984	Buick	Century	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1984	Buick	Skylark	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1984	Chevrolet	Camaro	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1984	Chevrolet	Celebrity	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1984	Chevrolet	Citation II	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1984	Chevrolet	S10	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1984	Chevrolet	S10 Blazer	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1984	GMC	S15	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1984	GMC	S15 Jimmy	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1984	Jeep	Cherokee	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1984	Jeep	Wagoneer	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1984	Oldsmobile	Cutlass Ciera	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1984	Oldsmobile	Omega	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1984	Pontiac	6000	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1984	Pontiac	Firebird	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1984	Pontiac	Phoenix	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1983	Buick	Century	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1983	Buick	Skylark	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1983	Chevrolet	Camaro	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1983	Chevrolet	Celebrity	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1983	Chevrolet	Citation	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1983	Chevrolet	S10	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1983	Chevrolet	S10 Blazer	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1983	GMC	S15	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1983	GMC	S15 Jimmy	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1983	Oldsmobile	Cutlass Ciera	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1983	Oldsmobile	Omega	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1983	Pontiac	6000	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1983	Pontiac	Firebird	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1983	Pontiac	Phoenix	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1982	Buick	Century	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1982	Buick	Skylark	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1982	Chevrolet	Camaro	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1982	Chevrolet	Celebrity	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1982	Chevrolet	Citation	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1982	Chevrolet	S10	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1982	GMC	S15	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1982	Oldsmobile	Cutlass Ciera	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1982	Oldsmobile	Omega	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1982	Pontiac	6000	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1982	Pontiac	Firebird	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1982	Pontiac	Phoenix	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1981	Buick	Skylark	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1981	Chevrolet	Citation	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1981	Oldsmobile	Omega	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1981	Pontiac	Phoenix	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1980	Buick	Skylark	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1980	Chevrolet	Citation	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1980	Oldsmobile	Omega	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
1980	Pontiac	Phoenix	2.8L	V6	2.4937 (in) to 2.4946 (in) Shaft Size; without Groove; A-Series Aluminum Bearings; Standard
No rows match your filter.

Directly replaces or cross-references 10 part numbers

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

4M1494P2206PBC378JMB427AMMBS759CPMS1494ALMS1494PMS3494ALVP91940VPM91940