CNC-Motorsports offers the best selection in performance piston rings for pump gas street engines to nitrous or turbo race engines. We carry piston ring brands by Total Seal, Hastings, JE, Wiseco, CP and Mahle. Shop our selection of pre-fit, file fit, and gapless piston rings. We offer a huge selection of bore size options, and ring thickness sizes. Custom ring sets are available.
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DRP-09084135 PART NUMBER
09084135 Diamond Pro Select Piston Rings 4.135 Bore, .043 .043 3.0mm$277.99
4.135 Bore Size, .043 Plasma Moly Top Ring, .043 Taper Face 2nd Ring, 3.0mm Low Tension Oil Ring, File Fit, 8 Cylinder Set Learn More -
DRP-09194135 PART NUMBER
09194135 Diamond Pro Select Piston Rings 4.135 Bore, 1/16 1/16 3/16$323.25
4.135 Bore Size, 1/16 Stainless Steel W/ C-23 PVD Face Coating Top Ring, 1/16 Napier Face 2nd Ring, 3/16 Standard Tension Oil Ring, File Fit, 8 Cylinder Set Learn More -
DRP-09204135-R1 PART NUMBER
09204135-R1 Diamond Pro Select Piston Rings 4.135 Bore, .043 .043 3.0mm$329.99
4.135 Bore Size, .043 Stainless Steel W/ C-23 PVD Face Coating Top Ring, .043 Napier Face 2nd Ring, 3.0mm Standard Tension Oil Ring, File Fit, 8 Cylinder Set Learn More -
DRP-09224135 PART NUMBER
09224135 Diamond Pro Select Piston Rings 4.135 Bore, .043 .043 3.0mm$317.99
4.135 Bore Size, .043 Plasma Moly Dutile Barrel Face Top Ring, .043 Napier Face 2nd Ring, 3.0mm Standard Tension Oil Ring, File Fit, 8 Cylinder Set Learn More -
DRP-09234135 PART NUMBER
09234135 Diamond Pro Select Piston Rings 4.135 Bore, .043 1/16 3/16$329.99
4.135 Bore Size, .043 Stainless Steel W/ C-23 PVD Face Coating Top Ring, 1/16 Napier Face 2nd Ring, 3/16 Standard Tension Oil Ring, File Fit, 8 Cylinder Set Learn More -
DRP-09244135 PART NUMBER
09244135 Diamond Pro Select Piston Rings 4.135 Bore, .043 .043 3/16$329.99
4.135 Bore Size, .043 Stainless Steel W/ C-23 PVD Face Coating Top Ring, .043 Napier Face 2nd Ring, 3/16 Standard Tension Oil Ring, File Fit, 8 Cylinder Set Learn More -
MAH-4140MS-1115 PART NUMBER
Mahle Performance Piston Ring Set 4140MS-1115$189.56
4.135+5 Bore, File Fit, 0.043", 1.5mm, 3.0mm, Ring Pak, Standard Tension Oil Rings Learn More -
DRP-09214135 PART NUMBER
09214135 Diamond Pro Select Piston Rings 4.135 Bore .043 .043 3.0mm$329.99
Fits 4.135 Bore Size, .043 AP Stainless Steel Top Ring, .043 Napier Face 2nd Ring, 3.0mm High Tension Oil Ring, File Fit, 8 Cylinder Set Learn More -
DRP-09454135 PART NUMBER
09454135 Diamond Pro Select Piston Rings 4.135 Bore 1.2 1.2 3.0mm$159.99
Fits 4.135 Bore Size, 1.2mm Gas Nitrided Steel Top Ring, 1.2mm Napier Cut 2nd Ring, 3.0mm Standard Tension Oil Ring, File Fit, 8 Cylinder Set Learn More -
DRP-09754135 PART NUMBER
09754135 Diamond Pro Select Piston Rings 4.135 Bore .0354 .0354 2.0mm$392.99
Fits 4.135 Bore Size, 0.0354 AP Steel Top Ring, 0.0354 Napier 2nd Ring, 2.0mm Low Tension Oil Ring, File Fit, 8 Cylinder Set Learn More