Namura Piston Rings for 1998-04 Yamaha 800 GP/GP-R/XL/XLT - 80.40mm - NW-40003-2R
Namura Technologies Piston Ring Kit
- Piston Rings are an essential part of piston performance, engine efficiency and durability
- Namura’s rings are designed specifically for each application with the best materials and precise fitment
- Composed of either a highly ductile cast iron or stainless steel alloy
- Quality rings provide excellent wear resistance and a gas-tight seal
- Sold with enough rings for a single piston
- Made in Taiwan
Often overlooked and unglamorous, they are an essential part of piston performance, engine efficiency, and durability. The materials used in the manufacturing of piston rings are one of the most critical factors in their performance. The type of cylinder sleeve, sleeve coating, size of the engine, and the stroke (2 or 4) all play a role in determining the composition best suited for the operating environment. Compression Rings are composed of either a highly ductile cast iron or stainless steel alloy; both materials possess excellent wear resistance and provide a gas-tight seal. Chrome, phosphate and nitride coatings are also used to meet the demands of the application. Oil rings consist of three separate components. Two scraper rails constructed from highly ductile cast iron or a stainless steel alloy and also have a chrome, nitride, or phosphate coating. The single expansion ring is manufactured from stainless steel. Namura’s rings are designed specifically for their application with the best materials and precise fitment at unbeatable prices.
Product Line Namura Piston Rings Part Number NW-40003-2R Fitment Type Model-Size Specific Fitment Use Type for restoring lost performance due to excessive wear Unit Sale Qty Style Oversized Piston Rings Position Material Finish Piston/Cylinder Size 80.40mm Piston Size Added 0.50mm Cylinder Stroke Volume Final Engine Displacement California Emissions Product Disclaimer You MUST measure the size of your cylinder BEFORE ORDERING. Damage/Return of a piston due to ordering the wrong size will not be accepted.
Items will be shipped within 1 business day from the date of purchase to the address provided. Orders submitted before 3PM EST will often ship the same day. We will use an appropriate shipping service and/or carrier based on the shipping service selected at checkout and can not be changed/upgraded/modified in any way once the order is submitted.Shipping Address Restriction
If your address has a carrier restriction and is not serviced by one or more of the US domestic carriers (USPS, UPS or FedEx), then it is YOUR RESPONSIBILITY to notify us of this restriction at the time of purchase with either an order note entered before checkout, or a direct message within 15 minutes of order submission.International Purchases
All items shipped internationally will be shipped with customs declaration of purchase value; ALL duties/tariffs/fees imposed by the destination country are the buyers responsibility and are NOT calculated or imposed by us at any level and we are not liable for any additional cost that your destination country imposes. Often, these fees are due prior to or at delivery of the shipped product/s and are not subject to negotiation. If you have questions about the calculation of the fees, please contact your home nations customs/import agency for additional details as we have no control over how these amounts are calculated.
All orders must be paid in full before an order can be shipped. Cost of any additional shipping service upgrades are due at the time of checkout and can not be added once the order is complete. Certain destinations are subject to sales tax which is calculated and applied to the order total before checkout and order submission.Part Compatibility Policy
Application specific parts will have part compatibility indicated in the "Fits" or "Fitment" section of the product description and will be provided for all application specific products. These fitment indications are sourced from the product manufacturer and may be subject to change. Please be careful in reading any/all fitment indications for exact Year-Make-Model-Sub Model indications to make sure the part ordered will fit your exact application/s. If you are uncertain about a part compatibility and will to clarify before purchase, please feel free to message us at anytime and an experienced support staff member will assist you in verifying fitment to his/her best ability.Image Policy
Product specific images displayed on listings will be provided IF available, and when not available, a generic (non-specific) image will be provided that represents the general product type listed. Listing images should not be used as the exclusive basis for making your purchase decision and it is the customer responsibility to review the product description and all fitment indications before adding the item to cart.Return Policy
At SVS Powersports we understand that a product does not always look, fit or function as expected. If such a situation arrises, we do accept returns of all Unopened, Unused items with original packaging within 30 days of purchase/delivery. If your item is damaged, defective or completely different from the item ordered, please DO NOT submit a return request, please contact our knowledgable support staff with a clear description of the issue and someone will get back to you in a prompt time frame.
At SVS Powersports we are proud to offer unparalleled level of customer support and if any question or issue should arise, do not hesitate to contact us at any time. We have a very experienced and knowledgable support staff that can assist you with virtually any inquiry. Support staff is available 6 Days a week (Monday Thru Saturday) 10AM to 6PM EST by calling 1-800-787-5817 OR via email at email@example.com with most inquiries responded to within less than an hour during our staff support hours. If you contact us outside these hours, we may still get back you right away, but a response may be delayed until the next business day.
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