In warehouse stock

Prox Piston Kit — 94.95 mm — Yamaha YFZ450/YFZ450R

Prox · #0910-0603 · Top End / Engine

Kit includes piston, rings, wrist pin and circlips
Precision machined on state of the art CNC equipment
Made with low expansion, low friction alloy

$210.95

In stock. Ships in 2–4 business days · free shipping over $150.

Questions? Call the shop: 801-361-3010

Real shop · real humans · 1231 N 1300 W Ste A, Centerville, UT 84014

Description & features3 features

Kit includes piston, rings, wrist pin and circlips
Precision machined on state of the art CNC equipment
Made with low expansion, low friction alloy

Specifications14 specs

Compression Ratio: 11.4:1, 11.6:1, 12.0:1
Units: Kit
Displacement: 450 cc
Riding Style: ATV
Skirt Coating: Non-Coated
Bore - Oversize: Standard
Piston Material: Aluminum Alloy
Bore Size: 95.00 mm
Piston Size: 94.95 mm
Engine Type: 4-Stroke
Type: Standard Size A
Shipping weight: 0.92 lb
Package size: 4.3 × 4.1 × 3.1 in
Country of origin: Japan

Fitment7 models · Yamaha

Yamaha7 models

YFZ 450 LE 4x22004–2005
YFZ 450 SE 4x22006
YFZ4502004–2009, 2012
YFZ450 Bill Balance Edition2006–2007
YFZ450 SE2007–2008
YFZ450R2009–2025
YFZ450R SE2009–2025

Fitment comes from the distributor’s catalog. Double-check your year, model and trim before you order — or call the counter at 801-361-3010 and we’ll check it with you.

Part numbersOEM cross-reference

Salto part #: 0910-0603
Prox part #: 01.2435.A
Replaces OEM #: 5TG-11631-00

Shipping

In stock at a distributor warehouse. Ships in 2–4 business days by ground.

Ground shipping is $14.95, free on orders over $150. Stock is re-checked with the warehouse before your card is charged.

Questions4 answers

Is it in stock?: Yes — the distributor shows it on a shelf at a regional warehouse right now. We check again the moment you order, before anything is charged.
How fast will it get to me?: Usually 2–4 business days by ground.
Will it fit my machine?: The distributor lists it for the models in the Fitment section above. Not sure about your trim or year? Call the counter at 801-361-3010 and we’ll check it with you.
Is this genuine Prox?: Yes. It ships new from the same distributors the big online stores buy from — Prox part #01.2435.A.