Sealed Power E-989K Engine Piston Ring Set

Sealed Power E-989K Piston Ring Set

Sealed Power E-989K is a standard-size engine piston ring set built for 93.00 mm bores with 1.2 mm top, 1.5 mm second, and 2.5 mm oil ring groove widths. It is engineered for 5-cylinder applications and uses a steel top ring with moly, a grey iron second ring with phosphate coating, and a 3-piece flex vent oil ring design.

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 x 1.5 x 2.5 mm
• Built for 5-cylinder engine configurations

Detailed Description

This Sealed Power piston ring set, part number E-989K, is specified for 2004-2006 Chevrolet Colorado, 2004-2006 GMC Canyon, and 2006 Hummer H3 applications with the listed 93.00 mm standard bore. The ring package combines a moly steel top ring, a phosphate-coated grey iron second ring, and a flex vent oil control ring to match the groove widths and sealing requirements of the engine. Sealed Power focuses on modern materials and controlled manufacturing processes to deliver consistent fit and performance for engine rebuild work.

This part cross-references 41935CP and 89060378 for the same application.

Common Uses

• Restoring cylinder compression after ring wear
• Reducing oil consumption caused by worn oil control rings
• Addressing blow-by from poor ring sealing
• Correcting low compression readings during engine rebuilds
• Replacing worn rings during a standard-bore overhaul

Installation Notes and Tips

Verify bore diameter, ring groove widths, and cylinder count before installation. Measure ring end gap and follow the engine builder’s specifications for file-fit and clearance checks; this set is listed as non-file-fit. Clean piston ring grooves thoroughly and confirm the top, second, and oil rings are installed in the correct positions for the 1.2 x 1.5 x 2.5 mm groove stack.

Quality Assurance

Sealed Power uses leading-edge materials and ISO- and QS-certified manufacturing practices to support consistent product quality for modern engine service. Part number E-989K is built to meet the demands of rebuild and repair applications in Chevrolet Colorado, GMC Canyon, and Hummer H3 engines with the specified bore and ring dimensions.