7/8″ Hydraulic Trailer Master Cylinder – 313007

Part No: 313007 Category:

$35.20

4 in stock

4 in stock

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7/8″ Hydraulic Trailer Master Cylinder

Hydraulic trailer master cylinder, 7/8 inch to suit 2000kg override couplings towing tandem axle trailers. Best suited to 14-inch, 15-inch and 16-inch wheels.

Bleed and adjusted brakes are the key to an efficient hydraulic braking system. Once the brakes bleed, tighten the nut on the back of the brake lever.

A zinc bracket is required brake for hydraulic braking systems.

  1. Fit the master cylinder bracket on the rear bolt mounts
  2. Bolt hole mounts are 54mm between centres
  3. Select 1/2-inch bolts that bolt right through your bracket, coupling and drawbar
  4. Disconnect the parking brake
  5. Adjust the lower nut 2mm from the back of the override, then lock it off.

Further, we have more information from our engineer

  • you must have at least 2mm free play, between 2mm and 5mm when the hydraulic brake pads start to wear
  • if there is no free play, as soon as the brakes start to work and get a little warm, you will begin to get brake build-up, increasing heat and burning out your brakes or even popping the seals in the master cylinder

What type of brake fluid should I use?

DOT 3 or DOT 4 should be used in your boat trailer. This type of hydraulic oil does not absorb water, and the silicone in DOT 5 makes the seals swell and can bind up caliper pistons.

Purchase spare parts and other trailer parts here

Additional information

Weight1 kg
Dimensions20 × 12 × 8 cm

Our Service Lifetime Warranty

Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.

Couplemate™ is a manufacturer and vendor of high-quality towing, trailer, and caravan components. Couplemate™ Core Goods and Custom Work are guaranteed to be free of defects for the service lifetime of the product when used as intended.

Warranties are non-transferrable and Couplemate™ requires satisfactory proof of purchase prior to issuing a remedy. The full Couplemate™ Warranty Policy can be found in the Terms & Conditions: Section 8 – Consumer Guarantees & Warranty.

Warranties are in addition to your rights under the Australian Consumer Law. If something is wrong with your order, please contact our team.

60-Day Returns

After 60 years of experience, we know that life has its unpredictable moments.

All Couplemate™ orders (online, over the phone, or in-store) have a 60 day period for change-of-mind returns and exchanges. There are some items that can’t be returned and some returns may incur a 15% restocking fee.

You can view our full policy for change-of-mind returns here.

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