2Bros Parts

PISTON KIT 11-14 KX250F 77mm A, PROX 01.4342.A

$207.40

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Delivery to United States 5–8 business days

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ProX Piston Kit 01.4342.A. This 4-stroke piston kit features a 77.00mm bore and a compression ratio of 13.5:1. It is supplied complete with piston rings, wrist pin, and circlips, ready for installation. ProX pistons are precision machined using state-of-the-art CNC equipment and employ a low-expansion, low-friction piston alloy similar to that used by major Japanese engine manufacturers. The kit includes an OEM-style tin coating to aid in the break-in process. Replacement parts available include piston rings (02.4336) and piston clips (05.1612C). This kit is manufactured by Pro-X Racing.

Specifications
SKU
56-W952.A.PX
Brand
Pro-X Racing
Availability
In Stock (2)

Fitments (7)

MakeModelYear
KAWASAKIKX 250F2010
KAWASAKIKX 250F2011
KAWASAKIKX 250F2012
KAWASAKIKX 250F2013
KAWASAKIKX 250F2014
KAWASAKIKX 250F2015
KAWASAKIKX 250F2016
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
77.00mm
Variant Id
288636
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

ProX Piston Kit 77mm for Performance Engines

This ProX Piston Kit is meticulously engineered to enhance the performance of your engine. Each kit is designed for precision and durability, utilizing top-tier materials and manufacturing processes.

Key Features:

  • Piston Size: 77.00mm bore diameter.
  • Compression Ratio: Features a 13.5:1 compression ratio for increased power output.
  • Complete Kit: Supplied ready for installation, including piston rings, wrist pin, and circlips.
  • Advanced Materials: Utilizes a low-expansion, low-friction piston alloy, identical to that used by major Japanese engine manufacturers.
  • Precision Machining: Pistons are precision machined on state-of-the-art CNC equipment.
  • Break-In Assistance: Includes an OEM style tin coating to aid the break-in process for optimal initial performance.
  • Replacement Parts Available: Piston rings (02.4336) and piston clips (05.1612C) are available separately.
Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).

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.

Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. 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

By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.

Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.

More answers in our FAQ.

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