Need it delivering elsewhere? Click here
27H3503 is a replacement brake actuator spring for selected Nuffield, Leyland and Marshall tractors fitted with dry brake disc braking systems. These springs play an important role within the brake actuator, helping to return the mechanism to its correct position and ensuring smooth, consistent brake operation.
As the springs are continually compressed and released during braking, they can weaken over time. Replacing worn springs during a brake overhaul helps restore the correct operation of the brake actuator and can improve braking performance.
For a diagram showing the individual parts of the braking system click here.
Please check your tractor model before ordering to ensure the correct quantity is purchased.
For the best results, we recommend replacing the following components at the same time:
The brake actuator springs work together with the brake actuator balls to allow the brake mechanism to operate smoothly and progressively. As these components wear, the movement of the actuator can become inconsistent, increasing the likelihood of poor brake operation or brakes that grab during use.
For this reason, we recommend replacing the brake actuator balls whenever the springs are renewed. Renewing both components together helps restore the correct operation of the brake actuator and reduces the risk of the brakes grabbing or locking during operation.
If the brake actuator itself is cracked, excessively worn or damaged, replacing the springs alone may not resolve the problem. In these cases, the complete brake actuator should also be inspected and replaced if necessary.
For a full explanation of the dry brake system, common causes of brake grabbing and recommended maintenance, we recommend reading our blog:
"Brake Discs and Brake Actuators – Do They Deserve Their Bad Reputation?"
We specialise in replacement brake components for classic Nuffield, Leyland and Marshall tractors, supplying brake actuators, brake discs, springs, balls and associated components to help keep these classic tractors operating safely and reliably.
Original equipment manufacturers names and parts numbers are quoted for reference purposes only and are not intended to suggest that our replacement parts are made by the original equipment manufacturer.
Product images are for illustrative purposes only and may not always be an exact representation of the product.
Secure Payment Options
