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Vacuum Power Brake Booster for 1996-00 Toyota 4Runner SR5 Sport V6 3.4L

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$74.03 $72.26

Vehicle Fitment
Vacuum Power Brake Booster for 1996-00 Toyota 4Runner SR5 Sport V6 3.4L


- Please double confirm the compatibility as well as the OEM number before purchasing.

- Instruction is not included. Professional installation is Needed for this part.

- Contact us please for whatever we can help.


1) All parts are hand inspected off the line before packaging and once again by our team before shipment.
2) According to the original factory specifications.
3) Perfect match for the original car.
4) Stable characteristics, high reliability.

5) Aftermarket Products with Premium Quality


2 Year Warranty

Manufacturer Part Numbers:

446103D700 R2518306, 532727


1996 - 2000 Toyota 4Runner

Package :

1x Brake Booster

WARNING: Cancer and Reproductive Harm -

Vacuum booster is mainly hydraulic vacuum booster.
The hydraulic vacuum booster is powered by the hydraulic pressure generated by the master cylinder.
So it can be installed anywhere between the master cylinder and the wheel cylinder.

Working principle:
A vacuum booster works by drawing in air as the engine is working, creating a vacuum on one side of the booster,
The differential pressure relative to the normal air pressure on the other side is used to enhance the braking thrust.

Symptoms of a Failing Power Brake Booster:
When vacuum booster is damaged, it should be replaced as a whole.
Stiff brake pedal that is extremely hard to push
Longer stopping distance
Engine stalls when brakes are applied

Prior to replacing your Power Brake Booster:
Ensure the Vacuum Hose is properly connected and not loose
Check the Vacuum Hose for a blockage or leak
Inspect the Check Valve for cracks, looseness or damage

Testing your Power Brake Booster:
With the engine off, pump the brakes 5-6 times
Turn the engine on while pushing down lightly on the brake pedal
If your brake booster is working, the pedal will sink down about ”
If your brake booster is not working, nothing will happen or the brake pedal will push back against your foot

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To ensure a faster and secure delivery, we choose FedEx, USPS, UPS, DHL Ground/Air shipping service. Available shipping methods are vary from different type of products and delivery destination. The majority in stock products and orders are going to be shipped the same day or within 1 business day. After which its delivery details can be tracked with the tracking number we email you. For custom or made to order products’ shipping time varies as they may have to be manufactured, painted, embroidered or assembled.

For more information, please check the following tips:

  • Oversized products must ship by truck freight or LTL which is different from other ground shipping methods. Please noted that oversized products are required inspections and a signature service. Freight Shipping Information
  • We offer free shipping service for 47 sates in domestics. HI, PR, AK, Guam, Virgin Islands, APOs are excluded from free shipping areas. You will be charged extra shipping fee for orders’ destinations that are not 47 free shipping states.
  • "Free Shipping" applies only to orders shipped within the continental United States.


In order to provide all our valued customers with the most up to date and accurate compatibility information, LABWORKAUTO is continuously implementing real-time updates to our line store. Due to the immediate nature of these updates, the correction of any errors or omissions might happen at any time without prior notice. This information may include but not limited to pricing, availability, suggested use, fitment, compatibility and warranties. LABWORKAUTO is not responsible for any additional labor cost, charge, loss or damage incurred as a result of correct or incorrect information, reference or products purchase from LABWORKAUTO. While we are working to avoid any errors or omissions that may appear on LABWORKAUTO website, we reserve the rights to cancel any undeliverable orders based on inaccurate information.


If you want to track the logistics status of your order, please click here


If you are not completely satisfied with your purchase, we will be happy to accept a return for a refund or exchange on products in new/unused condition within 30 days of delivery. All authorized returns must be unused and in their original condition, including all items and components that were included in the original package. Items being returned must not have been disassembled, mounted, modified, or damaged due to incorrect installation or user error. will not be held responsible for installation or labor expenses, towing expenses, additional repair expenses, or rental car expenses caused by the use of wrong or defective parts during installation.

We provide a limited warranty of 1 year for defective products from the date the product is received by the original purchaser or installer, unless otherwise specified at the time of purchase.

When there is a problem with our products during the warranty period, we will try to send you a new set of products to enhance the shopping experience of every customer who purchases our products.

For each of our product warranties offered above, the following provisions apply:

The warranty is limited only to the original purchaser and is non-transferable.

Under NO circumstances will our liability exceed the amount of the original sale.

Each warranty does not cover any labor costs or incidental, indirect, special or consequential damages such as, but not limited to, physical injuries or property damage, loss of time, loss of use of the vehicle, inconvenience, air freight charges, rental vehicle charges, towing charges or accommodations resulting from a defect in or failure of the part.

A prepaid shipping label will be issued for all returns due to warranty claim.

The warranty does not cover lost or stolen packages. Because the customer is the shipper, he/she is the only one who can file any lost claim with the shipping company. Therefore, the claim must be coordinated and processed through the shipping company by the customer.

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