Sealed Power 1791M Engine Camshaft Bearing Set

Sealed Power 1791M Camshaft Bearing Set

Sealed Power 1791M is an engine camshaft bearing set built for GM V8 and V6 applications that use an OE split type design. It is a direct-fit choice for a wide range of Chevrolet, GMC, Pontiac, and Oldsmobile vehicles from 1978-2002, including Chevrolet S10, GMC Sonoma, and Chevrolet Astro applications.

• O.E. split type design for factory-style camshaft bearing service
• Engineered for compatible Chevrolet, GMC, Pontiac, and Oldsmobile applications
• Manufactured using ISO- and QS-certified processes
• Built with modern materials and production methods for consistent fit and finish
• Cross-references 4C1351S and SH1089S for the same application

Application Coverage

Compatible With 1978-2002 Chevrolet Astro, 1988-2002 Chevrolet S10, 1991-2002 GMC Sonoma, and 1985-2002 GMC Safari applications, along with many other GM truck and car platforms listed in the fitment data. This Sealed Power 1791M camshaft bearing set also covers Chevrolet Blazer, GMC Jimmy, Chevrolet Express, GMC Savana, Chevrolet C/K trucks, and select Pontiac and Oldsmobile models.

Use Sealed Power 1791M when servicing the camshaft bore in engines that require an OE split type bearing design. The part number 1791M is commonly searched for GM engine rebuilds where accurate bearing alignment and factory-style replacement matter.

What This Part Helps Address

• Camshaft bearing wear during engine rebuilds
• Excessive clearance in the cam bore
• Noise or oiling issues related to worn cam bearings
• Restoration work on high-mileage GM engines
• Replacement needs for OE split type cam bearing applications

Installation Notes

Verify block stamping and engine identification before ordering, especially on front-of-block applications noted as “without stamping # starting with T before I.D. number on front of block.” Confirm the engine uses an OE split type design and match the bearing set to the exact application listed. Proper installation requires correct alignment and machining practices during engine assembly.

Quality Assurance

Sealed Power parts are produced with leading-edge materials and ISO/QS-certified manufacturing processes to meet the demands of modern engines. The 1791M is built to support accurate OE-style replacement in service and rebuild applications.