
Passenger cars & SUVs
Gasoline and diesel pistons, rings, valves and full rebuild kits for 300+ car engine families.

AJC Auto Parts forges, casts and machines pistons, rings, liners, valves and complete rebuild kits for 600+ engine platforms — from compact hatchbacks to Class-8 diesels.


Forged & cast alloy pistons engineered for thermal endurance

Nitrided and PVD-coated ring sets with proven sealing performance

Centrifugally cast wet & dry liners with mirror-honed bores

Intake and exhaust valves for high-temperature service

Forged steel rods, shot-peened and dimensionally matched

Rebuild kits with matched pistons, rings, liners, bearings and gaskets
AJC operates as a vertically integrated manufacturer — every critical process runs in-house, so quality, lead-time and traceability stay under our control.
About the companyForging, casting, CNC machining, honing, coating, heat treatment and assembly under one roof.
40+ engineers designing to OEM prints and reverse-engineering legacy platforms.
PPAP, CMM inspection and 100% traceability from raw material to shipped SKU.
Direct shipping to 60+ countries with distributor networks in EMEA, LATAM and APAC.
Serial OE production alongside a 12,000-SKU aftermarket catalogue for workshops.
First-article samples in 20 days from technical drawing or physical reference.

Gasoline and diesel pistons, rings, valves and full rebuild kits for 300+ car engine families.

Class 6–8 platforms — Cummins ISX, Weichai WD615, MAN D26, Volvo D13 and more.

Precision pistons and rings for single- and twin-cylinder motorcycles, generators and pumps.
Send us a part number, drawing or sample. Our team responds within 24 hours.
We prepare a technical spec, tooling plan and quotation with lead-time.
First-article samples with CMM report shipped in 15–25 days.
Serial production under IATF 16949 with 100% traceability.
FCL / LCL sea, air freight, DDP options to your warehouse.

Send us the engine model, VIN or part number. Our team returns a full quotation with lead-time, MOQ and drawings.