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Motorbike parts and tools

Engine parts & cables

Upper engine

Piston kit Prox forged

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Prox forged Piston kitRef : PRO00444A / 1129313003

Recommended retail price:211,62 €?

190,40 ^€

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Description
Compatible motorbikes
Questions and answers

DescriptionProx forged Piston kit

Product details :

Features

PROX Forged Piston – Manufacturer Ref. 01.4424.C

Designed for the motocross world, this PROX forged aluminum piston is aimed at riders and workshops looking for a serious replacement part for 450 motorcycles. Its "Flat with Raised Top" design ensures a dome geometry suited to the combustion chambers of the relevant models, while the "C" oversize provides a bore-ready diameter.

Compression: standard
Diameter: Ø 95.990 mm (oversize letter C)
Material: aluminum (forged piston)
Specificity: flat with raised top

Ideal for reconditioning and replacement during a piston change, this piston allows for original specifications to be restored. Its finish and dimensions are suitable for segmentation and workshop assembly. Particularly suitable for maintenance programs of Kawasaki KX 450 (2025-2026) and KX 450 X (2025-2026) models listed for compatibility.

Before installation, check the bore, piston/ring clearance, and the compression ratio of your engine. The use of an oversize piston generally requires appropriate preparation of the cylinder head and cylinder: entrust the installation to a professional if necessary.

Technical information :

Reference

PRO00444A / 1129313003

Oversize

+0.02

Compression Ratio

12.5:1

Diameter Ø (mm)

95.990

Engine

Piston diameter

Ø 95,990 mm