Nippon Piston Rings for Honda and Acura Applications
Please note: Due to the current high demand and production delays. Many NPR products are currently considered Pre-Order expected to ship with an extended time frame from the date of purchase. If you require something within a specific time frame please contact us before placing your order to verify availability.

NPR Honda K-Series Piston Ring Set 87mm (K24)
NPR Part# SWH30466ZZ
Nippon Piston Ring OEM Replacement Piston Ring Set. Complete Set of K24 NPR Piston Rings. This set will fit all Honda K-Series Engines with a 87mm+ bore size.
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NPR Honda K-Series Piston Ring Set 86mm (K20)
NPR Part# SWH30454ZZ
Nippon Piston Ring OEM Replacement Piston Ring Set. Complete Set of K20A1 NPR Piston Rings. This set will fit most Honda K-Series Engines with a 86mm bore size.
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NPR Honda F23A1 Piston Ring Set 86mm
NPR Part# SWH30443ZZ
NPR Piston Ring Set, Honda Accord CL 2.3L F23A1, F23A4, F23A5 , F23A7 (86mm STD)
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NPR Honda B-Series Piston Ring Set 84mm+
Nippon Piston Ring OEM Replacement Piston Ring Set. Complete Set of NPR Piston Rings. This set will fit all Honda B20B/ B20Z Engines in selected size with OEM Pistons.
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NPR Honda H-Series Piston Ring Set 87.5mm (H22A VTEC)
NPR Part# SWH30433ZZ-020
Nippon Piston Ring OEM Replacement Piston Ring Set. Complete Set of H22A VTEC NPR Piston Rings. This set will fit all Honda H-Series Engines with a oversized 87.5mm bore size.
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NPR Honda H-Series Piston Ring Set 87.25mm (H22A VTEC)
NPR Part# SWH30433ZZ-010
Nippon Piston Ring OEM Replacement Piston Ring Set. Complete Set of H22A/ F20B VTEC NPR Piston Rings. This set will fit all Honda H-Series Engines with a 87.25mm bore size.
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NPR Honda H-Series Piston Ring Set 87mm (H22A VTEC)
NPR Part# SWH30433ZZ
Nippon Piston Ring OEM Replacement Piston Ring Set. Complete Set of H22A VTEC NPR Piston Rings. This set will fit all Honda H-Series Engines with a Standard 87mm bore size.
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NPR Honda D-Series Piston Ring Set 75mm (D16Y8)
NPR Part# SWH30423ZZ
Nippon Piston Ring OEM Replacement Piston Ring Set. Complete Set of D16Y8 NPR Piston Rings. This set will fit all OEM Honda D16Y8/ D16Y7/ D16Y5/ D15Z1 Engines with a Standard 75mm bore size.
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NPR Honda B-Series Piston Ring Set 81mm+
Nippon Piston Ring OEM Replacement Piston Ring Set. Complete Set of NPR Piston Rings. This set will fit all Honda B-Series Engine in selected size.
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NPR Honda D-Series Piston Ring Set 75mm (D16)
NPR Part# SWH30362ZZ
Nippon Piston Ring OEM Replacement Piston Ring Set. Complete Set of D16A/ D16Z6 NPR Piston Rings. This set will also fit all Honda D-Series Engines with Nippon Racing pistons and a Standard 75mm bore size.
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