Page structure information

About 2Bros Parts

2Bros Parts (2brosparts.com) is the online retail storefront of 2BROS MCS LTD (UK company no. 16176735, VAT no. GB 508324506). Sells motorcycle and powersports parts worldwide from the UK. Email: info@2brosparts.com. Phone: +44 330 133 3748.

Prefer Markdown? Most pages have a .md version

Static pages (about, contact, policies) and every product page are available as clean Markdown.

Append .md to most URLs — e.g. https://www.2brosparts.com/about.md
Send Accept: text/markdown on any page request (content negotiation per RFC 9110)
Fetch directly via the Markdown API — e.g. https://www.2brosparts.com/api/markdown/about, https://www.2brosparts.com/api/markdown/products/[slug]
Site overview: https://www.2brosparts.com/llms.txt

Agent API: plain GET paths, no query strings

Start at https://www.2brosparts.com/api/agent. Search with https://www.2brosparts.com/api/agent/search/GB/brake+pads (words joined with +, swap GB for the shopper's country). Tyres by size: https://www.2brosparts.com/api/agent/tyres/GB/110-90-19. Every response links onward and prices each product in the shopper's currency.

To buy, give the shopper https://www.2brosparts.com/api/agent/checkout/GB/[basketKey]:[qty],[basketKey]:[qty]. Opening it fills their basket and takes them to checkout. No need to fetch it first.

In Stock

PISTON KIT 09-25 SX50 39.5mm, WISECO 874M03950B KTM MX

Name: PISTON KIT 09-25 SX50 39.5mm, WISECO 874M03950B KTM MX
Brand: Wiseco
SKU: 56-W802.B.WI
Price: 106.25 GBP
Availability: InStock

£106.25

Qty

Only 1 left

Wiseco 874M03950B piston kit. Single piston. Displacement 49cc. Bore Standard 39.50mm. Bore Actual 39.50mm. Bore Oversize STD. Stroke 40.00mm. Cylinders 1. Pro-Lite. Nikasil Bore.

Specifications

SKU: 56-W802.B.WI
Brand: Wiseco
Availability: In Stock (1)

Fitments (31)

Make	Model	Year
GASGAS	MC 50	2021
GASGAS	MC 50	2022
GASGAS	MC 50	2023
GASGAS	MC 50	2024
GASGAS	MC 50	2025
HUSQVARNA	TC 50	2017
HUSQVARNA	TC 50	2018
HUSQVARNA	TC 50	2019
HUSQVARNA	TC 50	2020
HUSQVARNA	TC 50	2021
HUSQVARNA	TC 50	2022
HUSQVARNA	TC 50	2023
HUSQVARNA	TC 50	2024
HUSQVARNA	TC 50	2025
KTM	50 SX	2009
KTM	50 SX	2010
KTM	50 SX	2011
KTM	50 SX	2012
KTM	50 SX	2013
KTM	50 SX	2014
KTM	50 SX	2015
KTM	50 SX	2016
KTM	50 SX	2017
KTM	50 SX	2018
KTM	50 SX	2019
KTM	50 SX	2020
KTM	50 SX	2021
KTM	50 SX	2022
KTM	50 SX	2023
KTM	50 SX	2024
KTM	50 SX	2025

General Product Group: Engine
General Product Type: Pistons & Kits
General Size: 39.5mm
Variant Id: 289563

Shipping OptionsShown at checkout

14-Day ReturnsHassle-free

Easy CheckoutCard friendly

Product details

FULL DESCRIPTION

Wiseco Piston Kit - 39.50mm Bore

This high-performance Wiseco Piston Kit is designed for single-cylinder engines, offering superior durability and power. Engineered with precision, this kit is ideal for enthusiasts seeking to maintain or upgrade their motorcycle's performance.

Key Features:

Product Type: Single Pistons
Bore Size: 39.50mm (Standard)
Stroke: 40.00mm
Displacement: 49cc
Cylinders: 1
Series: Pro-Lite
Cylinder Type: Nikasil Bore
Weight: 108 grams

Wiseco is a leading manufacturer known for its commitment to quality and innovation in high-performance engine components.

RELATED PARTS

View all

ONE WAY CLUTCH BEARING KIT ALLBALLS 25-1782 CAN-AM 420427220 420832351

£37.04

RUBBER KICKSTART 14x25x65mm

£1.55

PISTON KIT VERTEX 66.4 B KAWASAKI KX/KXE 250 02-04, VERTEX 22795B

£164.63

Trade pricing available

Buying parts for your business? Apply for a 2BrosParts trade account.

Apply for Trade