WESPC 4181A026 903-019 piston ring kit for Perkins 1004-series diesel engines

WESPC 4181A026 903-019 piston ring kit for Perkins 1004-series diesel engines

Application

WESPC 4181A026 / 903-019 piston ring kit for Perkins 1004-series diesel engines. Commonly used in FG Wilson generator sets, agricultural tractors, and construction machinery. Designed to restore compression, control oil consumption, and ensure optimal combustion efficiency during piston overhaul or engine rebuild.

Generator sets

Suitable for Perkins-powered gensets rated 80–150 kVA. Maintains ring-to-wall contact under continuous duty, reducing blow-by and improving fuel economy.

Industrial & agricultural equipment

Applied in Massey Ferguson tractors, JCB loaders, and other OEM platforms using Perkins 1004.40 / 1004.40T engines. Supports long-term engine performance in demanding operating environments.

Technical specifications

Part number: 4181A026 / 903-019

Function: piston ring kit (includes top compression rings, intermediate ring, and oil control ring)

Material: ductile cast iron with nitrided and chrome-faced surfaces for wear resistance

Compatible engines: Perkins 1004.40 / 1004.40T (AJ, AK, AM, AP, AQ builds)

Bore size: standard (100.00 mm)

Warranty: 12 months

Interchange part number

4181A026; 903-019; verified fitment for Perkins 1004-series engines in generator sets and industrial/agricultural machinery

WESPC(Dongguan)Tech Co., Ltd. is a wholly-owned subsidiary of WESPC Hong Kong.

The company has long been deeply engaged in the Perkins aftermarket spare parts sector, while also covering a wide range of multi-brand engines and related components. With years of professional expertise and a solid reputation, WESPC provides customers with diverse, one-stop solutions tailored to their needs.

Leveraging the global vision of its Hong Kong headquarters and the strategic location advantages of Dongguan, WESPC Dongguan is committed to building a highly efficient and reliable supply chain system, supported by professional technical expertise and comprehensive after-sales services, to continuously create greater value for its customers.

Looking ahead, the company will continue to expand its business landscape, keep pace with industry trends, and consistently enhance product and service quality—working hand in hand with global partners to achieve mutual growth and success.