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Motorbike parts and tools

Engine parts & cables

Upper engine

Piston kit Prox Forged

Non-contractual photo

Prox Forged Piston kitRef : PRO00316A / 1121740001

Recommended retail price:235,05 €?

211,50 ^€

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Description
Compatible motorbikes
Questions and answers

DescriptionProx Forged Piston kit

Product details :

Features

The PROX forged piston (manufacturer reference 01.6353.A) is designed for motocross riders looking for a robust and precise engine part. Machined from a specific aluminum alloy, this piston minimizes friction and aims for reliable performance in the demanding conditions of off-road riding. Its forged design offers better material homogeneity compared to a cast piston, which is appreciated in high-performance engines.

Diameter: Ø 87.96 mm (oversize letter A)
Compression: Standard
Material: Forged aluminum
Number of rings: Delivered in a rings kit
Field: Motocross

This piston is particularly suitable for preparations and replacements on cylinders of the same oversize, where machining precision and dimensional compatibility are essential for proper sealing and thermal behavior. Ideal for modern 350 cm3 engines, it is listed for models such as:

KTM 350 SX-F (2025)
HUSQVARNA FC 350 (2025)
GAS GAS MC 350 F (2024)

A high-quality replacement part for competition or intense use, the PROX 01.6353.A piston fits into compatible oversize A blocks and is aimed at riders seeking a reliable and well-machined engine part.

Technical information :

Reference

PRO00316A / 1121740001

Oversize

STD

Rings Quantity

Set

Diameter Ø (mm)

87,96

Engine

Piston diameter

Ø 87,960 mm

Material

Aluminum

Specificity

Flat with Raised Top / 4 Valve Pockets

Piston type

Forged

Compression piston

Standard

Compatible motorbikes

KTM6 compatible models

350 SX-F - 2011/2025350 XC-F - 2017/2019 - 2021/2023350 EXC-F - 2020/2024350 EXC-F SIX DAYS - 2020/2024350 EXC-F WESS - 2023/2023350 SX-F FACTORY EDITION ANTONIO CAIROLI - 2011/2012

HUSQVARNA4 compatible models

FE 350 PRO - 2024/2024FC 350 - 2014/2025FX 350 - 2017/2023FE 350 - 2020/2024

GAS-GAS3 compatible models

EC 350 F - 2021/2024MC 350 F - 2022/2024EX 350 F - 2021/2023