2Bros Parts

PISTON KIT 2023-25 KTM 250SX-F, 2023-25 HUSKY FC250 81mm, PROX 01.6348.B

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ProX Piston Kit 4-Stroke 81.00mm Bore. Kit includes piston rings, wrist pin, and circlips. Pistons are precision machined on CNC equipment and use a low-expansion, low-friction piston alloy. Features an OEM-style tin coating for assisted break-in. Part number 01.6348.B.

Specifications
SKU
56-W4984.B.PX
Brand
Pro-X Racing
Availability
In Stock (1)

Fitments (16)

MakeModelYear
GAS-GASEC F 2502024
GAS-GASEC F 2502025
GAS-GASEX F 2502024
GAS-GASEX F 2502025
GAS-GASMC F 2502024
GAS-GASMC F 2502025
HUSQVARNAFC 2502023
HUSQVARNAFC 2502024
HUSQVARNAFC 2502025
HUSQVARNAFE 2502024
HUSQVARNAFE 2502025
KTM250 EXC-F2024
KTM250 EXC-F2025
KTM250 SX-F2023
KTM250 SX-F2024
KTM250 SX-F2025
General Product Group
Engine
General Product Type
Pistons & Kits
Variant Id
314269
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

ProX 4-Stroke Piston Kit 81.00mm Bore

This ProX Piston Kit is designed for high-performance 4-stroke engines. It features an 81.00mm bore and is engineered for durability and optimal performance.

Each ProX Piston Kit comes complete and ready for installation, including:

  • Piston
  • Piston rings
  • Wrist pin
  • Circlips

ProX pistons are manufactured using advanced CNC machining technology. They are constructed from a low-expansion, low-friction aluminum alloy, mirroring the materials used by major Japanese engine manufacturers. The piston utilizes an OEM-style tin coating, which aids in the crucial break-in process for your engine.

Key Features:

  • 81.00mm Bore Size
  • Precision CNC Machined
  • Low-Expansion, Low-Friction Piston Alloy
  • OEM-Style Tin Coating for Enhanced Break-In
  • Complete Kit Includes Piston, Rings, Wrist Pin, and Circlips
Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.

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.

UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. 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

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More answers in our FAQ.

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