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12-Piece Master Cylinder Adapter Kit for Pressure Brake Bleeders

Professional Brake Bleeder Adapter Compatible with Most Brake Bleeder kit

12-Piece Master Cylinder Adapter Kit for Pressure Brake Bleeders

BCT36

$139.99
$153.87 $139.99
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Free Shipping
30-Day Free Refund
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SKU : BCT36
Model : 12pcs Master Cylinder Adapter Set
Item Weight : ‎‎‎‎6.16 pounds
Product Dimensions :‎ ‎17.32 x 11.42 x 3.54 inches

1x E1 rectangular adapter(14.3cm*18.7cm)
1x D1-47mm round adapters
1x D2-29mm round adapters
1x C2-34.5mm round adapters
1x B1-43.5mm round adapters
1x B2-43.5mm round adapters
1x B3-49.5mm round adapters
1x E20-49mm round adapters
1x J-50.7mm round adapters
1x C1-56mm round adapters
1x L-74mm round adapters
1x Connector
Accessories for D1/D2 Connections
Accessories for E1 Connections
1x Instructions

12-Piece Master Cylinder Adapter Kit for Pressure Brake Bleeders

This 12-piece kit provides multiple master-cylinder reservoir adapter configurations for use with compatible pressure brake bleeders. Select the adapter by the actual reservoir opening diameter and connection shape, not by vehicle make alone.

Adapter Sizes and Configurations

  • E1 rectangular adapter: 14.3 x 18.7cm
  • D2: 29mm; C2: 34.5mm; D1: 47mm; E20: 49mm; B3: 49.5mm; J: 50.7mm; C1: 56mm; L: 74mm
  • B1 and B2: two different 43.5mm adapter configurations
  • Connector included for compatible connections

12-piece master cylinder adapter kit

Compatibility: Measure Before Ordering

This is not a universal vehicle-fit kit. Reservoir openings can vary by model year, trim, market, and master-cylinder design. Compare both the opening diameter and the connection shape with the adapter before use. B1 and B2 share a 43.5mm size but have different shapes, so diameter alone is not enough to select between them.

Master cylinder adapter sizes and shapes

Use Notes

Choose only an adapter that sits squarely and seals securely on the reservoir, then connect it to a compatible pressure brake bleeder. Do not force an adapter that does not fit smoothly. Follow the vehicle manufacturer's brake-service procedure, use the specified brake fluid, and release pressure before removing the adapter.

Pressure brake bleeder adapter kit use

Related Guide

Use our guide to checking your brake-fluid reservoir cap size and connection style before selecting an adapter.

📄 Download Manual PDF View full details

FAQ

Why are both B1 and B2 included if they are 43.5mm?

B1 and B2 have the same 43.5mm size but different adapter shapes. Choose the one whose shape seats correctly on your reservoir; do not select by diameter alone.

Will this kit fit my vehicle?

Fitment depends on your actual master-cylinder reservoir opening, diameter, and connection shape. Vehicle make alone is not a guarantee, so measure the reservoir and compare it with the adapter before ordering.

What should I check if the adapter leaks or will not hold pressure?

Stop and release pressure first. Check that the selected adapter is seated squarely, the reservoir connection matches its shape, and the seals and hose connections are clean and undamaged.