WESPC 4115P012 piston with ring (0.5 mm oversize) for Perkins 4.236 and 1004 Series diesel engines

Application

WESPC 4115P012 piston with ring (0.5 mm oversize) for Perkins 4.236 and 1004 Series diesel engines. Commonly used in Perkins-powered generator sets, agricultural tractors, and construction machinery. Designed to restore cylinder compression, reduce oil consumption, and ensure reliable performance during engine overhaul or rebuild.

Generator sets

Suitable for Perkins-powered gensets rated 60–150 kVA.

Industrial & agricultural equipment

Applied in Perkins 4.236, 1004-4, 1004-40, 1004-40T engines used in tractors, loaders, and OEM platforms.

Technical specifications

Part number: 4115P012

Function: piston assembly (includes piston, piston rings, piston pin, and retaining clips)

Category: Engine Piston and Rings System

Material: aluminum alloy piston body with graphite-coated skirt; moly-coated cast iron rings; hardened steel pin

Compatible engines: Perkins 4.236 / 1004 Series

Bore size: oversize +0.50 mm (standard bore 98.42 mm → 98.92 mm)

Warranty: 12 months

Interchange part number

4115P012; replaces 4115P011 (STD), 4115P013 (+1.00 mm)

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.