1. Dirt Bike
    2. Parts
    3. Engine

    2004 KTM 525 SX Engine

    2004 KTM 525 SX
    Oil Filter:
    KN-155
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    Wiseco
    Pro Lite Piston Kit
    $210.95 - $236.95
    $158.21 - $177.71
    You save up to $59.24 (25%)
    (12)
    Wiseco Pro Lite Piston Kit Available for both two stroke and four stroke bikes, the Wiseco Pro Lite Piston Kit is both a great OEM alternative and an easy way to boost the power. Choose stock bore siz
    Moose Racing Top End Gasket Kit Performance sets designed for a piston replacement Top-end gasket sets include high-performance head, base, intake and exhaust gaskets Cost-effective way to raise c
    Moose Racing Complete Gasket Set All gaskets needed for engine rebuild are included in each set with the exception of oil seals Unmatched reliability and performance from high-tech materials Design
    Hot Cams
    Valve Shim Kit
    $59.95
    $47.96
    You save $11.99 (20%)
    (5)
    Hot Cams Valve Shim Kit Sick of taking your bike to an expensive mechanic to have them shim your valves just because you don't have the correct shims to do it yourself? Here is the answer, Hot Cams
    Vertex
    Piston Kit
    $226.95
    $197.99
    You save $28.96 (13%)
    (1)
    Vertex Piston Kit Restore that crisp clean power that your dirtbike or quad use to have with a new Piston Kit from Vertex. Or step up the power with a high compression Piston Kit, All kits ar
    Athena Complete Gasket Kit Manufactured in "State-of-the-Art" computer controlled facilities All gaskets made from the highest quality materials All gasket sets meet or exceed OEM specifications The
    Works Connection Oil Filler Plug 6061 T-6 Aluminum with an anodized finish and O-ring seal Adds nice factory look Made in the USA **Note: Honda CRF450R models must order one for crankcase and one fo
    Moose Racing Countershaft Seal Kit Kit includes hardened steel bushing, an upgraded seal, an O-ring (where applicable) and a snap ring or lock washer (where applicable) Made in the U.S.A.
    Pro X Racing Parts Engine Valve ProX also offers a complete line of steel valves. The ProX steel valves are manufactured of premium grade steel to exact OEM specifications and tolerances. The ProX val
    Ride Engineering Billet Oil Fill Plug Flush mount design eliminates the risk of oil loss from a punctured or cracked plastic plug. Flush mount design also keeps plug from accidently becoming unscrewed
    Wossner
    Pro Series Piston Kit
    $179.99
    $152.99
    You save $27.00 (15%)
    (0)
    Wossner Pro Series Piston Kit Wössner (pronounced Werssner) Pistons, Germany's finest aftermarket forged piston company brings precision and quality to North America. Top European racers and FIM World
    Wiseco
    Stainless Steel Engine Valves
    $28.95 - $44.95
    $21.71 - $33.71
    You save up to $11.24 (25%)
    (1)
    Wiseco Stainless Steel Engine Valves Stainless steel valves are manufactured to exacting tolerances from the highest grade material Forged one piece valves for unmatched strength CVD/CNI coated t

    Latest Reviews

    randy j. (sand lake, MI)

    Fit
    Quality
    Installation
    Recommend

    flywheel weight

    Works great- just right for the YZ250 for woods riding.

    Curtis (Chesapeake, VA)

    Fit
    Quality
    Installation
    Recommend

    Top end bearing

    Good OEM substitute. Used one on my last top end without issue.

    Curtis (Chesapeake , VA)

    Fit
    Quality
    Installation
    Recommend

    Gasket kit

    Good quality gasket set. Had everything I needed including multiple thickness base gaskets to properly set head space. Would buy again.

    Jim (Sheboygan, WI)

    Fit
    Quality
    Installation
    Recommend

    Shim Kit

    Glad I bought the kit, better than buying individual shims at the Honda shop. Fair price, quick delivery.

    Jake (Colchester, CT)

    Fit
    Quality
    Installation
    Recommend

    Was good...

    Fit great and was an easy installation but blew it first time I took it to the track.

    Davey (South Central, WI)

    Fit
    Quality
    Installation
    Recommend

    Great Deal

    2008 FZ1- Fit perfectly, no 'big glob of glue' on the end holding the magnet in. Nice black finish, we'll see if it holds up. Same exact length as stock. I'm actually kind of excited to see what it pulls out of the oil at the next interval. Cheap insurance, money well spent!

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