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A brake proportioning valve (or brake pressure regulator) is a crucial safety component that controls hydraulic pressure to the rear brakes to prevent rear-wheel lockup during heavy braking. By carefully balancing the braking force between the front and rear wheels, it helps maintain vehicle stability, particularly under sudden or high-load braking conditions.
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Without a properly functioning brake pressure regulator, excessive force can be sent to the rear brakes, increasing the risk of skidding, loss of control, and uneven tyre wear. Over time, internal seals and braking components can wear or corrode, leading to inconsistent brake performance or brake fluid leaks. If left unresolved, these issues can compromise both safety and braking performance.
Replacing a faulty brake proportioning valve restores proper brake balance and ensures your braking system performs as intended. We have a wide range of rear brake proportioning valves suited for most vehicle makes and models. If you're not sure which option is right for you, use our car parts finder. Simply enter your reg number, or the make, model, and year of your vehicle, to see only compatible parts.
Browse our range of brake pressure regulators today at Opie Oils and keep your braking system safe, reliable, and performing at its best. When replacing or servicing this component, it’s also important to check other key parts of your braking system, such as the brake master cylinder, brake calipers, brake discs, brake pads, and brake lines, to maintain complete hydraulic integrity.