⚠️ We’re currently updating the site — some links & features may not work temporarily. Thanks for your patience!
This Black Diamond™ stainless steel exhaust valve is designed for standard fitment in various KTM® RFS engines used in both dirt bikes and ATVs. Manufactured from high-strength one-piece forgings, the valve undergoes a proprietary German surface treatment process that enhances wear resistance, corrosion protection, and reduces friction. Engineered using Finite Element Analysis and validated through flow bench testing, this valve offers durable performance for demanding off-road applications.
Features
Black Diamond™ stainless steel construction
Surface treated to a depth of .002" with a .0002" buildup
Enhanced wear and corrosion resistance
Reduced friction for improved performance
One-piece forged design for strength and reliability
Flow-optimised profile using FEA and bench testing
Standard exhaust valve size
Specifications
Application: Standard Exhaust Valve
Valve Type: Black Diamond™ Stainless Steel
Cross-Reference OEM Part Numbers
590.36.031.000
59036031000
Vehicle Fitments
KTM® All RFS ATV Engines 450cc–525cc (2008–2009)
KTM® All RFS Dirt Bike Engines 400cc–560cc (2000–2009)
| Make * | Model * | CC * | Year From | Year To |
|---|---|---|---|---|
| Polaris | OUTLAW MXR | 450 | 2008 | 2010 |
| Polaris | OUTLAW | 525 | 2007 | 2011 |
Parts showing as available at our Warehouse in Gorey ship the same business day if ordered before 1pm.
Parts showing as available at our Supplier Warehouse are ordered from our supplier and delivered to us before we can dispatch. More info is available on this page under "Stock Availability".
This website does not have access to live stock levels from our OEM Suppliers. In most cases the parts will be available but in the case of backordered parts we will notify you. We receive parts from Yamaha in 3-4 days, All others including Honda, Suzuki, Kawasaki, Polaris please allow 7-10 days for us to receive the parts.
1-2 Days using GLS/An Post
3-5 Days using GLS/Fedex
4-7 Days using GLS/Fedex
Parts That Fit
Easy to find and easy to confirm they fit your vehicle
Exceptional Product Knowledge.
We only sell tried and tested quality products.
Part Sourcing
We will find the parts you need. Email us today!
Competitive Pricing
Discount prices on parts. We offer bulk prices for Dealers.
Parts showing as available at our Warehouse in Gorey ship the same business day if ordered before 1pm.
Parts showing as available at our Supplier Warehouse are ordered from our supplier and delivered to us before we can dispatch. More info is available on this page under "Stock Availability".
This website does not have access to live stock levels from our OEM Suppliers. In most cases the parts will be available but in the case of backordered parts we will notify you. We receive parts from Yamaha in 3-4 days, All others including Honda, Suzuki, Kawasaki, Polaris please allow 7-10 days for us to receive the parts.
1-2 Days using GLS/An Post
3-5 Days using GLS/Fedex
4-7 Days using GLS/Fedex
