PISTON KIT 03-07 KTM EXC450 89, PROX 01.6413.B BETA 450RR, 594.30.007.000
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Forged piston kit, 89.00 mm bore, standard compression 11.0:1. Ready to install, ProX piston kits are supplied complete with piston rings, wrist pin, and circlips. ProX pistons are precision machined on state of the art CNC equipment and use a low-expansion, low-friction piston alloy. Uses an OEM style tin coating to assist the break-in process. PROX 01.6413.B.
- SKU
- 56-W178.B.PX
- Brand
- Pro-X Racing
- Availability
- In Stock (2)
Fitments (33)
| Make | Model | Year | Notes |
|---|---|---|---|
| BETA | RR 450 | 2005 | — |
| BETA | RR 450 | 2006 | — |
| BETA | RR 450 | 2007 | — |
| BETA | RR 450 | 2008 | — |
| BETA | RR 450 | 2009 | — |
| BETA | RR ENDURO 4T 450 | 2005 | — |
| BETA | RR ENDURO 4T 450 | 2006 | — |
| BETA | RR ENDURO 4T 450 | 2007 | — |
| BETA | RR ENDURO 4T 450 | 2008 | — |
| BETA | RR ENDURO 4T 450 | 2009 | — |
| KTM | 450 EXC | 2003 | 1st Filter (Long) |
| KTM | 450 EXC | 2004 | 1st Filter (Long) |
| KTM | 450 EXC | 2005 | 1st Filter (Long) |
| KTM | 450 EXC | 2006 | 1st Filter (Long) |
| KTM | 450 EXC | 2007 | 1st Filter (Long) |
| KTM | 450 EXC R | 2003 | — |
| KTM | 450 EXC R | 2004 | — |
| KTM | 450 EXC R | 2005 | — |
| KTM | 450 EXC R | 2006 | — |
| KTM | 450 EXC R | 2007 | — |
| KTM | 450 EXC Racing | 2003 | 1st Filter |
| KTM | 450 EXC Racing | 2004 | 1st Filter |
| KTM | 450 EXC Racing | 2005 | 1st Filter |
| KTM | 450 EXC Racing | 2006 | 1st Filter |
| KTM | 450 EXC Racing | 2007 | 1st Filter |
| KTM | 450 XC | 2008 | — |
| KTM | 450 XC | 2009 | — |
| KTM | 450 XC ATV | 2008 | — |
| KTM | 450 XC ATV | 2009 | — |
| POLARIS | OUTLAW MXR 450 | 2008 | — |
| POLARIS | OUTLAW MXR 450 | 2009 | — |
| POLARIS | OUTLAW MXR 450 | 2010 | — |
| POLARIS | OUTLAW MXR 450 | 2011 | — |
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 89mm
- Variant Id
- 254867
FULL DESCRIPTION
ProX Piston Kit - 89.00mm Bore
This ProX Piston Kit is designed for high-performance engine rebuilds. Crafted from a precision-machined, low-expansion, low-friction piston alloy, it meets the standards used by major Japanese engine manufacturers.
The kit includes everything needed for a complete installation:
- Piston
- Piston Rings
- Wrist Pin
- Circlips
Featuring an OEM-style tin coating, this piston assists in a smooth break-in process for your machine. The standard compression ratio is 11.0:1.
Key Features:- Forged piston construction
- 89.00mm Bore Size
- Standard Compression Ratio: 11.0:1
- Includes piston rings, wrist pin, and circlips
- Precision machined using state-of-the-art CNC equipment
- Low-expansion, low-friction piston alloy
- OEM-style tin coating for enhanced break-in
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).
Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.
Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details
Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy
By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.
Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.
More answers in our FAQ.
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