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OBP Remote Reservoir Master Cylinder

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Brand: Optimum Balance Products (OBP)

These master cylinders have been designed by obp Motorsport as a less-expensive alternative to the Girling brand. The outet port faces the rear of the car, which is ideal for cars with limited space in front of the master cylinder. All sizes come complete with a pushrod. The pushrod measures 3.3" long overall (approximately 3" exposed from the mounting flange). These single-circuit masters have can be used for either clutch or brakes. The EPDM seals are formulated to work with any DOT-rated brake fluid (not for use with hydraulic oil). Sold individually.

  • Outlet Port Thread: 3/8-24 (3AN)
  • Inlet Port Thread: 7/16-20 (4AN)
  • Pushrod Thread: 5/16-24
  • Cylinder Length (measured from mounting face): 4.2"
  • Mounting Hole Spacing: 2 1/4" (vertical)
  • Stroke: 1.375"

Note: These master cylinders are not manufactured by Girling, Lucas, or TRW. They are very high-quality reproductions, made in the UK as an alternative to the (increasingly expensive) original. All dimensions and threads are the same as on the Girling.

Reservoirs and Inlet Hoses, sold separately:
Large Reservoir with Centered 7/16-20 Threaded Outlet (Part No. 3574)
Medium Reservoir with Offset 7/16-20 Threaded Outlet (Part No. 3569)
Pre-Assembled 4AN PTFE Hoses

Enter desired order quantities below, then click the "Add selected quantities to cart" button.

Order Qty
Part No.
Stock Status

Condition: New
SKU: 53768

OBP Remote Reservoir Master Cylinder - 0.62 inch Bore

$54.99In Stock

Condition: New
SKU: 53769

OBP Remote Reservoir Master Cylinder - 0.70 inch Bore

$54.99In Stock

Condition: New
SKU: 56025

OBP Remote Reservoir Master Cylinder - 0.75 inch Bore

$54.99In Stock

Condition: New
SKU: 76704

OBP Remote Reservoir Master Cylinder - 0.87 inch Bore

$54.99In Stock

Condition: New
SKU: 76705

OBP Remote Reservoir Master Cylinder - 1.00 inch Bore

$54.99In Stock
Related Product Groups
obp Master Cylinders