Namura Motorcycle Engine Components
- Namura®Forged Piston Kit (FX-40032-B)Forged Piston Kit (FX-40032-B) by Namura®. Namura Forged pistons offer dyno-proven gains in performance and durability over industry-standard 4032 forged pistons. Namura's exclusive forged alloy offers lower expansion rates, allowing...100% CNC-machine piston domesHard anodized domes for reduced carbon build-up$125.83
- Namura®Forged Piston Kit (FX-10041-C)Forged Piston Kit (FX-10041-C) by Namura®. Namura Forged pistons offer dyno-proven gains in performance and durability over industry-standard 4032 forged pistons. Namura's exclusive forged alloy offers lower expansion rates, allowing...100% CNC-machine piston domesHard anodized domes for reduced carbon build-up$122.85
- Namura®Forged Piston Kit (FX-40033)Forged Piston Kit (FX-40033) by Namura®. Namura Forged pistons offer dyno-proven gains in performance and durability over industry-standard 4032 forged pistons. Namura's exclusive forged alloy offers lower expansion rates, allowing for...100% CNC-machine piston domesHard anodized domes for reduced carbon build-up$127.89
- Namura®Forged Piston Kit (FX-10039-C)Forged Piston Kit (FX-10039-C) by Namura®. Namura Forged pistons offer dyno-proven gains in performance and durability over industry-standard 4032 forged pistons. Namura's exclusive forged alloy offers lower expansion rates, allowing...100% CNC-machine piston domesHard anodized domes for reduced carbon build-up$117.63
- Namura®Forged Piston Kit (FX-40033-C)Forged Piston Kit (FX-40033-C) by Namura®. Namura Forged pistons offer dyno-proven gains in performance and durability over industry-standard 4032 forged pistons. Namura's exclusive forged alloy offers lower expansion rates, allowing...100% CNC-machine piston domesHard anodized domes for reduced carbon build-up$125.83
- Namura®Forged Piston Kit (FX-40033-B)Forged Piston Kit (FX-40033-B) by Namura®. Namura Forged pistons offer dyno-proven gains in performance and durability over industry-standard 4032 forged pistons. Namura's exclusive forged alloy offers lower expansion rates, allowing...100% CNC-machine piston domesHard anodized domes for reduced carbon build-up$125.83
- Namura®Forged Piston Kit (FX-10042-C)Forged Piston Kit (FX-10042-C) by Namura®. Namura Forged pistons offer dyno-proven gains in performance and durability over industry-standard 4032 forged pistons. Namura's exclusive forged alloy offers lower expansion rates, allowing...100% CNC-machine piston domesHard anodized domes for reduced carbon build-up$124.86
- Namura®Forged Piston Kit (FX-10035-B)Forged Piston Kit (FX-10035-B) by Namura®. Namura Forged pistons offer dyno-proven gains in performance and durability over industry-standard 4032 forged pistons. Namura's exclusive forged alloy offers lower expansion rates, allowing...100% CNC-machine piston domesHard anodized domes for reduced carbon build-up$122.59
- Namura®Forged Piston Kit (FX-10035)Forged Piston Kit (FX-10035) by Namura®. Namura Forged pistons offer dyno-proven gains in performance and durability over industry-standard 4032 forged pistons. Namura's exclusive forged alloy offers lower expansion rates, allowing for...100% CNC-machine piston domesHard anodized domes for reduced carbon build-up$122.59
- Namura®Forged Piston Kit (FX-20033)Forged Piston Kit (FX-20033) by Namura®. Namura Forged pistons offer dyno-proven gains in performance and durability over industry-standard 4032 forged pistons. Namura's exclusive forged alloy offers lower expansion rates, allowing for...100% CNC-machine piston domesHard anodized domes for reduced carbon build-up$107.65
- Namura®Forged Piston Kit (FX-10048-C)Forged Piston Kit (FX-10048-C) by Namura®. Namura Forged pistons offer dyno-proven gains in performance and durability over industry-standard 4032 forged pistons. Namura's exclusive forged alloy offers lower expansion rates, allowing...100% CNC-machine piston domesHard anodized domes for reduced carbon build-up$138.50
- Namura®Forged Piston Kit (FX-10048)Forged Piston Kit (FX-10048) by Namura®. Namura Forged pistons offer dyno-proven gains in performance and durability over industry-standard 4032 forged pistons. Namura's exclusive forged alloy offers lower expansion rates, allowing for...100% CNC-machine piston domesHard anodized domes for reduced carbon build-up$138.50
- Namura®Forged Piston Ring Kit (FX-10053R)Forged Piston Ring Kit by Namura®. Quality materials mean increased longevity and continued performance. A critical aspect of any rebuild, gaskets are often given little thought. However, the right materials can make all the difference.Namura rings replace the ones included with Namura piston assembliesThey also match the OEM design for use on the original pistons unless noted$14.07
- Namura®Forged Piston Ring Kit (FX-10049R)Forged Piston Ring Kit by Namura®. Quality materials mean increased longevity and continued performance. A critical aspect of any rebuild, gaskets are often given little thought. However, the right materials can make all the difference.Namura rings replace the ones included with Namura piston assembliesThey also match the OEM design for use on the original pistons unless noted$16.35
- Namura®Forged Top-End Repair Kit (FX-10049-CK)Forged Top-End Repair Kit (FX-10049-CK) by Namura®. Quality materials mean increased longevity and continued performance. A critical aspect of any rebuild, gaskets are often given little thought. However, the right materials can make...Carefully developed for the highest level of qualityUnsurpassed in functionality and reliability$188.39
- Namura®Forged Top-End Repair Kit (FX-30017K)Forged Top-End Repair Kit by Namura®. Quality materials mean increased longevity and continued performance. A critical aspect of any rebuild, gaskets are often given little thought. However, the right materials can make all the difference.Carefully developed for the highest level of qualityUnsurpassed in functionality and reliability$178.70
- Namura®Forged Top-End Repair Kit (FX-40049K)Forged Top-End Repair Kit (FX-40049K) by Namura®. Quality materials mean increased longevity and continued performance. A critical aspect of any rebuild, gaskets are often given little thought. However, the right materials can make all...Carefully developed for the highest level of qualityUnsurpassed in functionality and reliability$197.33
- Namura®Forged Top-End Repair Kit (FX-40049-CK)Forged Top-End Repair Kit (FX-40049-CK) by Namura®. Quality materials mean increased longevity and continued performance. A critical aspect of any rebuild, gaskets are often given little thought. However, the right materials can make...Carefully developed for the highest level of qualityUnsurpassed in functionality and reliability$197.33
- Namura®Forged Top-End Repair Kit (FX-40049-BK)Forged Top-End Repair Kit (FX-40049-BK) by Namura®. Quality materials mean increased longevity and continued performance. A critical aspect of any rebuild, gaskets are often given little thought. However, the right materials can make...Carefully developed for the highest level of qualityUnsurpassed in functionality and reliability$197.33
- Namura®Forged Top-End Repair Kit (FX-40045-CK2)Forged Top-End Repair Kit (FX-40045-CK2) by Namura®. Quality materials mean increased longevity and continued performance. A critical aspect of any rebuild, gaskets are often given little thought. However, the right materials can make...Carefully developed for the highest level of qualityUnsurpassed in functionality and reliability$128.17
- Namura®Forged Top-End Repair Kit (FX-40045-CK)Forged Top-End Repair Kit (FX-40045-CK) by Namura®. Quality materials mean increased longevity and continued performance. A critical aspect of any rebuild, gaskets are often given little thought. However, the right materials can make...Carefully developed for the highest level of qualityUnsurpassed in functionality and reliability$134.27
- Namura®Forged Top-End Repair Kit (FX-40046K)Forged Top-End Repair Kit (FX-40046K) by Namura®. Quality materials mean increased longevity and continued performance. A critical aspect of any rebuild, gaskets are often given little thought. However, the right materials can make all...Carefully developed for the highest level of qualityUnsurpassed in functionality and reliability$179.45
- Namura®Forged Top-End Repair Kit (FX-40046-CK)Forged Top-End Repair Kit (FX-40046-CK) by Namura®. Quality materials mean increased longevity and continued performance. A critical aspect of any rebuild, gaskets are often given little thought. However, the right materials can make...Carefully developed for the highest level of qualityUnsurpassed in functionality and reliability$179.45
- Namura®Forged Top-End Repair Kit (FX-40045K)Forged Top-End Repair Kit (FX-40045K) by Namura®. Quality materials mean increased longevity and continued performance. A critical aspect of any rebuild, gaskets are often given little thought. However, the right materials can make all...Carefully developed for the highest level of qualityUnsurpassed in functionality and reliability$183.92
- Namura®Forged Top-End Repair Kit (FX-40032-BK)Forged Top-End Repair Kit (FX-40032-BK) by Namura®. Quality materials mean increased longevity and continued performance. A critical aspect of any rebuild, gaskets are often given little thought. However, the right materials can make...Carefully developed for the highest level of qualityUnsurpassed in functionality and reliability$157.11
- Namura®Forged Top-End Repair Kit (FX-20032K)Forged Top-End Repair Kit (FX-20032K) by Namura®. Quality materials mean increased longevity and continued performance. A critical aspect of any rebuild, gaskets are often given little thought. However, the right materials can make all...Carefully developed for the highest level of qualityUnsurpassed in functionality and reliability$151.90
- Namura®Forged Top-End Repair Kit (FX-10048K)Forged Top-End Repair Kit (FX-10048K) by Namura®. Quality materials mean increased longevity and continued performance. A critical aspect of any rebuild, gaskets are often given little thought. However, the right materials can make all...Carefully developed for the highest level of qualityUnsurpassed in functionality and reliability$187.65
- Namura®Forged Top-End Repair Kit (FX-10048-BK)Forged Top-End Repair Kit (FX-10048-BK) by Namura®. Quality materials mean increased longevity and continued performance. A critical aspect of any rebuild, gaskets are often given little thought. However, the right materials can make...Carefully developed for the highest level of qualityUnsurpassed in functionality and reliability$187.65
- Namura®Forged Top-End Repair Kit (FX-10046-BK)Forged Top-End Repair Kit (FX-10046-BK) by Namura®. Quality materials mean increased longevity and continued performance. A critical aspect of any rebuild, gaskets are often given little thought. However, the right materials can make...Carefully developed for the highest level of qualityUnsurpassed in functionality and reliability$186.15
- Namura®Forged Top-End Repair Kit (FX-10045-CK)Forged Top-End Repair Kit (FX-10045-CK) by Namura®. Quality materials mean increased longevity and continued performance. A critical aspect of any rebuild, gaskets are often given little thought. However, the right materials can make...Carefully developed for the highest level of qualityUnsurpassed in functionality and reliability$179.45
Namura Technologies Inc. is a Minnesota-based company that has been producing pistons, rings, bearings, and gaskets since 2001. Whether it's recreational off-road riding or motocross racing, Namura has quality products that outperform stock motorcycle parts while being offered at a better price. Its pistons have been tested and proven in numerous challenge races and motocross competitions. Aside from a selection of cast and forged pistons, the company has an exclusive Hyperdryve line of pistons made out of an aerospace-grade hypereutectic aluminum alloy.
Namura pistons come in OE-spec sizes and oversizes, cast from alloys with a higher silicone content to better resist wear and high temperatures. Heads are machined smooth and then anodized. The result is a stronger product that better withstands extreme heat with less expansion, and less carbon buildup. Skirts are finished in MOS2 (Teflon/Molybdenum) that's 10 times stronger than other types of coatings. This reduces friction and improves heat transfer, providing smoother starts and outstanding break-in protection.
The company's forged pistons are built from the alloy that outclasses the 4032 aluminum industry standard. This further reduces expansion and provides superior strength-to-weight ratio, while allowing for tighter tolerances. The Hyperdryve series is stronger than conventional cast alloys and maintains hardness in extreme conditions for longer time periods, without the higher cost of forging. Namura piston kits include the piston, rings, circlips, and a wrist pin. If the top end requires a rebuild, restore your dirt bike's engine performance with OE-quality gaskets included a Namura top end kit.