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4AN Male to 3/8 (10mm) Long Stem Banjo Brake Adapter

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This plated steel banjo adapter has a single 4AN male fitting (7/16-20, 37° flare) and a 3/8" diameter bore. This fitting can accomodate either a 3/8" or a 10mm banjo bolt. Nominally 1/2" thick, takes a full-length (0.98") banjo bolt in most applications. The 4AN fitting extends approximately 1/2" farther from the banjo portion than on a standard banjo adapter. This can solve a number of clearance issues in tight installations. Sold individually.

Requires Banjo Bolt and Crush Washers, both sold separately.

Part No.
Stock Status

Condition: New

1 to 5: $19.99 

6 & up: $19.07 

In Stock

Hard to find solution at a great price and quality.


Used to make up a tool to connect a hydraulic line from my hand pump to a brake caliper for servicing. Makes it easy to 'pump out' the caliper piston for disassembly and seal replacement. Much safer than using air and pushes out even stubborn pistons. Longer stem length of the adapter helps it clear any caliper body obstructions. The perfect size for the Nissan X-Trail brake caliper line connection as it is the same as the OEM hose fitting (10 mm Banjo).

DL the Engineer

Brampton, Ontario, Canada


4AN Male to 3/8 (10mm) Long Stem Banjo Brake Adapter

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