What is the importance of the load sensing proportioning and bypass valve (LSP & BV) in trucks on Toyota Tacoma?

The center of gravity on a truck is higher than a car, causing the weight to be biased towards the front when the brakes are applied. This results in the front brakes requiring more hydraulic pressure and the rear brakes requiring less to prevent locking. Trucks are equipped with a Brake Proportioning Valve and bypass valve (LSP & BV) that adjusts the braking bias based on the weight of the load. It is important to cover painted surfaces and avoid spilling brake fluid during maintenance. Servicing the LSP & BV at home is not recommended due to the specialized gauge set required, but it can be replaced by the vehicle owner. However, adjusting the unit should be done by a dealer service department or qualified repair shop. Removal and installation instructions vary depending on the model of the vehicle. After installation, it is necessary to bleed the brake hydraulic system and have the LSP & BV adjusted by a professional.

Genuine Toyota Tacoma Brake Proportioning Valve

Proportioning Valve

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2 Brake Proportioning Valves found

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Toyota Tacoma Valve Assy, Load Sensing Proportioning
Part Number: 47910-35320
$236.58 MSRP: $339.24
You Save: $102.66 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pressure Metering Valve, Valve Assembly
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1995-2004 Toyota Tacoma | DLX, SR5 | 4 Cyl 2.7L, 6 Cyl 3.4L | 3RZFE, 5VZFE; 3RZFE, 5VZFE; RZN161L-TRMDKAB, RZN161L-TRPDKAB, RZN171L-CRMDKAB, RZN171L-CRPDKAB, RZN191L-TRPDKAB, RZN196L-CRPDKAB, RZN196L-PRPDKAB, VZN160L-TRMDKAB, VZN170L-CRMDKAB, VZN170L-CRMGKAB, VZN170L-CRPDKAB, VZN170L-CRPGKAB, VZN170L-PRPDKAB, VZN195L-CRPDKAB, VZN195L-PRPDKAB
View related parts
Toyota Tacoma Valve Assy, Load Sensing Proportioning
Part Number: 47910-35330
$236.58 MSRP: $339.24
You Save: $102.66 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pressure Metering Valve, Valve Assembly
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1995-2004 Toyota Tacoma | DLX | 4 Cyl 2.4L, 6 Cyl 3.4L | 2RZFE, 5VZFE; 2RZFE, 5VZFE; RZN140L-TRMDKAB, RZN140L-TRPDKAB, RZN140L-TRSDKAB, RZN150L-CRMDKAB, RZN150L-CRPDKAB, RZN150L-CRSDKAB, VZN150L-CRMDKAB, VZN150L-CRSDKAB

Toyota Tacoma Brake Proportioning Valve

The Brake Proportioning Valve is another important part of the Toyota Tacoma that has the ability to control forces on numerous output lines that depends on the pressure of the fluid. This variation enables the forces in each output to be regulated depending with the cross-sectional area in order to keep the rear drum brakes from engaging before the front disc brakes during a sudden braking event. This safety feature improves braking as well as handling during emergency braking and is standard especially in Tacoma variations that come with the front disc and rear drum brakes. This is because Brake Proportioning Valve has the responsibility of regulating the distribution of the brake fluid pressure ending up enhancing the braking system of the Toyota Tacoma vehicles.

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Toyota Tacoma Brake Proportioning Valve Parts Questions & Experts Answers

Valve Assy, Load Sensing Proportioning
47910-35320
Q: What is the importance of the load sensing proportioning and bypass valve (LSP & BV) in trucks on Toyota Tacoma?
A: The center of gravity on a truck is higher than a car, causing the weight to be biased towards the front when the brakes are applied. This results in the front brakes requiring more hydraulic pressure and the rear brakes requiring less to prevent locking. Trucks are equipped with a Brake Proportioning Valve and bypass valve (LSP & BV) that adjusts the braking bias based on the weight of the load. It is important to cover painted surfaces and avoid spilling brake fluid during maintenance. Servicing the LSP & BV at home is not recommended due to the specialized gauge set required, but it can be replaced by the vehicle owner. However, adjusting the unit should be done by a dealer service department or qualified repair shop. Removal and installation instructions vary depending on the model of the vehicle. After installation, it is necessary to bleed the brake hydraulic system and have the LSP & BV adjusted by a professional.