Guaranteed Fitment
Always the correct part
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At DMG Motorsports, we present the Vertex Water Pump Rebuild Kit 821318 — a complete, no-shortcuts solution for restoring your KTM's water pump to like-new performance. Whether your pump is weeping coolant, running hot, or simply overdue for maintenance, this kit gives you every part needed to get the job done right in a single trip to the workbench. Vertex is a trusted name in OEM-replacement gaskets and seals, and this kit is engineered to match factory specifications so you can rebuild with confidence instead of chasing down individual components. It's built to fit a wide range of KTM RFS 4-stroke models, including EXC, SX, XC, MXC, and SMR variants from roughly 1998 through 2009, making it a go-to kit for shops and home mechanics alike.
Features:
| Vehicle | Year(s) |
|---|---|
| KTM 250 EXC | 2002–2005 |
| KTM 250 EXC-G Racing | 2002–2005 |
| KTM 400 EXC 4-Stroke | 2000–2002 |
| KTM 400 EXC-G Racing | 2004–2007 |
| KTM 400 MXC 4-Stroke | 2001–2002 |
| KTM 400 SX 4-Stroke | 1998–2002 |
| KTM 400 XC-W 4-Stroke | 2007 |
| KTM 450 EXC-F | 2003–2004, 2007 |
| KTM 450 EXC-G Racing | 2003–2006 |
| KTM 450 MXC 4-Stroke | 2003–2005 |
| KTM 450 SM-S 4-Stroke | 2004 |
| KTM 450 SMR 4-Stroke | 2005–2007 |
| KTM 450 SX-F | 2003–2006 |
| KTM 450 XC-F | 2004–2007 |
| KTM 450 XCF-W | 2007 |
| KTM 520 EXC 4-Stroke | 2000–2002 |
| KTM 520 MXC 4-Stroke | 2001–2002 |
| KTM 520 SX 4-Stroke | 2000–2002 |
| KTM 525 EXC 4-Stroke | 2003–2007 |
| KTM 525 MXC 4-Stroke | 2003–2005 |
| KTM 525 SX 4-Stroke | 2003–2006 |
| KTM 525 XC ATV | 2008–2009 |
| KTM 525 XC-G 4-Stroke | 2006–2007 |
| KTM 525 XC-W 4-Stroke | 2007 |
Guaranteed Fitment
Always the correct part
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