Sealed Power E-988K Engine Piston Ring Set

Sealed Power E-988K Piston Ring Set

Sealed Power E-988K is a standard-size engine piston ring set built for 93.00 mm bores and 1.2 x 1.5 x 2.5 mm ring grooves. It uses a steel top ring with moly, a grey iron second ring with phosphate coating, and a 3-piece flex vent oil ring for precise cylinder sealing in supported GM and Saab applications.

Key Features

• Standard size piston ring set for 93.00 mm bore diameter
• Top ring material: steel with moly face for wear resistance
• Second ring material: grey iron with phosphate coating
• Top ring face design: barrel face
• Second ring face design: reverse torsional
• Oil ring design: 3-piece flex vent
• Ring groove widths: 1.2 mm, 1.5 mm, 2.5 mm
• File fit: No
• Fits 2002-2009 Chevrolet Trailblazer, N/A
• Fits 2003-2009 GMC Envoy, N/A
• Fits 2005-2009 Saab 9-7x, N/A

Detailed Description

Sealed Power E-988K is engineered for engines that require a 93.00 mm bore and standard groove dimensions, making it a direct match for select Chevrolet Trailblazer, GMC Envoy, Saab 9-7x, Buick Rainier, Trailblazer EXT, Envoy XL, Envoy XUV, and Oldsmobile Bravada applications. The steel moly top ring supports consistent cylinder sealing, while the reverse torsional second ring and phosphate-coated grey iron construction help maintain ring control under operating heat and pressure. Sealed Power uses modern materials and ISO- and QS-certified manufacturing practices to produce engine components that meet demanding engine service requirements.

This part cross-references 41907CP and 89060378 for the same application.

What This Part Helps Address

• Low compression from worn or damaged piston rings
• Excessive oil consumption caused by ring wear
• Blow-by from poor cylinder sealing
• Loss of ring tension in high-mileage engines
• Uneven sealing performance after engine rebuild work

Installation Notes and Tips

Verify bore diameter, groove width, and standard-size requirements before installation. Because this set is not file fit, ring end gaps should be checked against the engine specification during assembly. Clean piston ring grooves thoroughly and confirm the top, second, and oil rings are installed in the correct positions for the engine being serviced. For fitment confirmation, match the vehicle year, make, and model exactly to the listed applications, including 2002-2009 Chevrolet Trailblazer and 2003-2009 GMC Envoy.

Quality Assurance

Sealed Power manufactures engine components with leading-edge materials and certified production processes to support consistent fit and performance in modern engines. E-988K is built to the listed dimensional and material specifications for the confirmed applications.