15+ years of excellence in engineering machinery electronic control system parts manufacturing and supply
Founded in 2010, ECS System Parts has grown from a small workshop into a leading supplier of wiring harnesses for engineering machinery. We specialize in manufacturing and distributing OEM-quality wiring harnesses for excavators, wheel loaders, motor graders, and other heavy equipment.
Our wiring harnesses are compatible with major imported brands including Caterpillar, Komatsu, Volvo, Hitachi, Kobelco, Doosan, Hyundai, Liebherr, and JCB. We serve customers in over 50 countries, from individual equipment owners to large mining and construction companies.
With a state-of-the-art manufacturing facility in Qingdao, China, and a team of experienced engineers, we ensure every harness meets the highest quality standards. Our commitment to excellence has made us the preferred partner for engineering machinery wiring harnesses worldwide.
Trusted by professionals worldwide
What drives us every day
Every part is tested to meet or exceed OEM specifications. We never compromise on quality - it's the foundation of our business.
We understand downtime costs money. That's why we maintain large inventory and ship worldwide within 24 hours of order confirmation.
From product selection to after-sales support, our team is dedicated to providing the best experience for every customer, big or small.
Specializing in imported engineering machinery brands
A real manufacturing facility in Qingdao, China — not a trading company. This is where your wiring harnesses are built, tested, and shipped.
5,000 sqm modern manufacturing plant in Qingdao Industrial Park
Crimping, assembly, braiding — skilled workers building your harnesses
Stock organized by brand — Caterpillar, Komatsu, Volvo, Hitachi, Sumitomo and more
Every harness tested before shipping — continuity, insulation, connector fit
