About TOPARTS

TOPPARTS=TOPARTS, Top Engineering Machinery Parts From One Source.
GUANGZHOU TOPARTS MECHANICAL EQUIPMENT CO.,LTD. is one of the most reliable and most professional sealing products supplier in china, we pay attention to quality, control costs, We can provide the most competitive sealing application solutions for customers.

Products & Services
Toparts Provide best sealing solutions,our main products are: Hydraulic Breaker seal kit, Excavator seal kit, Crane seal kit, Wheel Loaders seal kit, Crawler Dozers seal kit, Pump seal kit, Motor seal kit, Dump Trucks seal kit.
Seal kit for Excavator:Boom seal kit,Arm seal kit;Bucket seal kit;main pump seal kit;Slewing motor seal kit,Travel motor seal kit,Polit Control seal kit,Foot Rest Control seal kit,Center Joint seal kit,Track Adjuster seal kit,Gear Pump seal kit.
Serviceable excavator brands: Komatsu, Caterpillar, Hitachi, Kobelco, Sumitomo, Doosan, Hyundai, Kato, Volvo, JCB, Sany, etc.
Serviceable hammer brands: Furukawa, Soosan, Atlas-Copco, Daemo, Komac, Komatsu, Everdigm, Krupp, NPK, MSB, Sandvik, Toku, Toyo, Montabert, D&A, Rammer, General, etc.

We are persisting in developing wiht the idea of “Professional,High,Quality,Environmental”and keeping on innovating with the aim of “Research and develop leading good quality product”.We sincerely hope to work with other partners in this feld todevelop the top-edged ,energy-saving ,environmental,efficientreliable and TOP PARTS  to the world.

What People Say About Us

Kingsley Chandler
Client
I never expected to find a supplier with such excellent products, such great service, and such high cost-performance. It completely exceeded my expectations.
Orson Lancaster
Client
We have been working with Topparts for over 10 years. They are more than just a supplier – they are a true partner. Consistently high quality, reliable delivery, and a team that genuinely cares about our success. A decade of win-win cooperation speaks for itself.
Harleigh Dodson
Client
Topparts has helped us stay ahead in a competitive market. Their oil seals consistently perform well in the field, which means fewer warranty claims and more repeat customers for us. Their responsive support team also makes a real difference – whether it’s urgent restocking or technical queries, they always have our back.

Who We Serve

  • Equipment Owners & Operators – From small excavation contractors to large-scale mining and construction firms, we provide reliable oil seals that reduce downtime and extend machine life.

  • Global Excavator Parts Distributors – Wholesalers and dealers worldwide who need consistent quality, competitive pricing, and dependable supply for their aftermarket and OEM replacement inventories.

  • Maintenance & Repair Shops – Service centers and field technicians who require fast-access, high-performance sealing solutions for all major excavator brands.

  • Fleet Managers – Professionals overseeing multiple machines, seeking long-lasting seals to simplify spare parts management and lower total operating costs.

  • OEM & Assembly Partners – Original equipment manufacturers and machine integrators that demand precision-engineered oil seals to meet strict production specifications.

What We Can Do

  • OEM & Custom Manufacturing – We produce oil seals strictly to your specifications. Whether you provide a sample, a part number, or a detailed drawing, we replicate exact dimensions, materials, and performance characteristics for seamless drop-in replacement.

  • Design-to-Order Engineering – No standard seal for your unique application? Our technical team works with your drawings or conceptual requirements to design and manufacture custom sealing solutions, from material selection to lip profile optimization.

  • Material Versatility – We offer a wide range of compounds (NBR, FKM, HNBR, silicone, PU, and more) to match your operating conditions – be it high temperature, high pressure, abrasive dust, or chemical exposure.

  • Rapid Prototyping & Sampling – Fast turnaround on sample production, allowing you to test fit and function before mass production, saving you time and risk.

  • Full-Scale Production – From small-batch specialty orders to high-volume warehouse stocking, we scale production to match your demand while maintaining strict quality control at every stage.

  • Private Labeling & Branding – We can package and label finished seals with your own brand identity, helping distributors build their product lines without investing in their own manufacturing facilities.

  • Technical Support – Our engineers are available to advise on seal selection, groove design, installation guidance, and failure analysis – ensuring you get not just a product, but a reliable sealing solution.