AUTOOL Master Cylinder Bleeder Adapter Kit 20pcs — Gold-Plated Aluminum, 11mm Quick-Connect & O-Rings

A complete 20-piece master cylinder bleeder adapter set from AUTOOL designed to seal, adapt and speed up brake-fluid bleeding across most makes and models.

If you service brakes at home or in a shop, the right adapter set saves time and prevents messy leaks during brake-fluid exchange. This AUTOOL kit includes 17 aluminum adapters, a quick-connect, rubber seals, and a durable storage case so you can match the correct fitting to the master cylinder or reservoir without improvising with tape or clamps.

Which vehicles will these adapters work with?

The kit covers a wide range of domestic and imported cars, matching common master cylinder thread sizes and reservoir openings. It was designed to fit many passenger cars, SUVs and light trucks, including European and Asian brands.

• Covers brands like Benz, BMW, Audi, Volvo, Peugeot and Renault.
• Also fits Asian makes such as Hyundai, Kia, Mitsubishi, Subaru, Toyota-compatible sizes.
• Includes adapters useful for select American models like Chevrolet and some BAIC BJEV sizes.
• Each adapter is sized to correspond to typical OEM master cylinder ports.

How does this set speed up brake bleeding?

The set includes an 11 mm quick connector and adapters that let you attach vacuum or pressure bleed tools securely to the master cylinder or reservoir. A proper seal prevents air ingress so bleeding cycles complete faster and with fewer interruptions.

• 11 mm quick connector for rapid hose attachment to manual or automatic bleeders.
• Rubber sealing rings on every adapter to maintain airtight connections.
• Aluminum construction reduces deformation under clamping compared with plastic adapters.
• Works with AUTOOL AST609, AST605, AST618, F118 and similar bleed machines.

What materials and build quality can I expect?

Adapters are machined from aluminum and gold-plated to resist wear and corrosion in brake fluid environments. Each adapter includes an O-ring to improve sealing and extend service life compared with lower-grade kits.

• High-quality aluminum bodies for strength and dimensional stability.
• Gold-plated outer layer for corrosion resistance and longer life.
• Durable rubber rings to ensure leak-free connections under pressure.
• Foam-lined heavy-duty plastic case for protective storage and organization.

How do I store and keep the adapters organized?

The kit ships in a custom heavy-duty case with foam inlays that hold each adapter in place. Neat storage reduces the chance of losing small fittings and protects mating surfaces from dings that can cause leaks.

• Custom-molded slots keep all 17 adapters and the quick connector separated.
• Foam cushioning protects threads and sealing faces during transport.
• Compact case fits on a toolbox shelf or in a service van drawer.

Who this is for: Automotive technicians, DIY mechanics and mobile brake-service businesses who need a reliable, broad-coverage adapter set for pressure or vacuum brake bleeding. If you work on multiple makes or maintain a fleet, the AUTOOL 20-piece master cylinder bleeder kit provides the fittings, seals and storage to make bleeding and fluid exchanges faster and cleaner.