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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HAS-2M139-40 PART NUMBER
2M139-40 4.040 Prefit - Hasting Original Moly Ring Set - 5/64, 5/64, 3/16$49.95
Hastings, Piston Rings, 4.040 Bore, Pre Fit, 5/64 5/64 3/16 Ring Pak, Standard Oil Ring Tension Learn More