Our Aim

To offer a wide portfolio of OEM Aftermarket brands at competitive prices, available from one collection point and in a reasonable lead time with good availability.

Why choose Autoparts & Diagnostics Ltd as your partner?


m2 Export Warehouse

We can offer all these brands above from our 4,000 m2 dedicated export distribution centre.

250 +

Export Customers

At competitive prices 250 + regular export customers from Europe, North America, Australia, Middle East, Africa and South East Asia.

36 Million

Euros Purchased 2018

Our export customers purchased 36 million euros in 2018 spread across 40 + brands.


Average Pallets Per Month

Exports began in 2005 and we now distribute an average of 1,500 Euro pallets of product per month.


Dedicated Export Staff

Each customer has their own dedicated Sales Representative and daily customer service contact. Our experienced supply chain team ensure high availability and short lead times.

Meet the International Business Team

We are a team of dedicated export professionals ready to help your business.

Patrick Seal


Tristan Seal

Managing Director

Sam Davies

Ryan Long

Finley Fowles

Brands We Represent

In addition to our own direct exports of the brands shown above, we are also the official Agent for the following brands:

Sealey Tools

Founded in 1978, Sealey is now known nationally and internationally as a leading brand of professional tools and workshop equipment. Committed to selling through a network of local, independent dealers, we have a reputation for providing the best products, best value and a service that is second to none. Sealey provide over 9,800 product lines designed for use in the trade. Catalogue sections include Hand Tools, Power Tools, Garage and Workshop, Bodyshop, Engineering and Vehicle Service Tools.

National Autoparts

National has been reliably serving the Independent Aftermarket in the UK and throughout Europe as a manufacturer and distributor for over 30 years. We specialise in clutch and brake components for passenger cars and light commercial vehicles. Specifically:  brake discs, brake drums, brake pads, wheel hub units, clutch kits, clutch concentric slave cylinders and conventional solid flywheel replacement kits for dual mass flywheel applications. They can also supply you their product in your own image packaging.

Steel Seal™

Award winning Steel Seal is the simplest, most effective head gasket repair on the market. In fact we are so confident Steel Seal will repair your blown head gasket it comes with a no quibble lifetime money back guarantee.

What is Steel Seal™ made of?

Steel Seal™ is made of several chemicals that, when combined under the right circumstances, creates a permanent seal as strong as steel. The major advantage of Steel Seal is the durability of the seal. The formula creates a seal that on a molecular level is close to the various types of metals in an engine, so that the seal will expand and contract at a similar rate to the engine. This has led to excellent repair longevity.

How does Steel Seal™ work?

Once the engine is started and reaches operating temperature, Steel Seal™ is distributed through the engine. The product is drawn into the damaged area and seals the crack with a thermo-chemical bonding action process, which happens layer-by-layer for maximum seal strength. This is similar to that of an epoxy resin, just in liquid form.

Steel Seal can be used in all types of vehicles and engines with a water cooling system regardless of whether your vehicle is petrol or diesel. Watch the short film below to see how easy it is to use.

Power Maxed

Power Maxed offer a wide range of products for Professionals and Consumers:

Vehicle cleaning products…..an extensive range covering various types of alloy wheel cleaners, bike wash and wax, bodywash sealant, car jet wash and wax, shampoo and ultra wax, glass cleaner, traffic film remover, interior shine, leather protector and many more.

Fuel and oil fix additives….range includes Radiator Flush, Coolant Seal, Injector Flush, Engine Flush, DPF Cleaner, Diesel Turbo Cleaner, Engine Oil Stop leak, Hydraulic Valve Treatment, Power Steering Stop Leak, Radiator Stop Leak and others. This range is designed to restore lost power, protect your engine, enhance engine performance, produce effective, fast results, not affect catalytic converters, safe with mineral and synthetic engine oils, safe for use with diesel, LPG and petrol engines, proven results – Product testers report ‘better than new’ engine performance.

Sprays and Lubricants……designed to clean and lubricate engines and improve engine performance and vehicle performance. Range includes Multi Lubricant, Brake and Clutch cleaner, Carbs cleaner, Clear Grease, Copper Grease and White Grease, Engine degreaser, Silicon lubricant and Electrical cleaner.

Detailing Accessories for Valeting professionals including giant drying towels, microfibre mitts, alloy wheel brushes, valeting gloves, clay bars, wash mitts, interior brush sets, polish towels and microfibre cloths.

Contact Details

Autoparts & Diagnostics Ltd, Unit 1, Ashchurch Parkway, Tewkesbury, GL20 8TU, UK