Make Model Year
TOYOTA 4RUNNER 1996 - 2000
Weight10 lbs
Dimensions10 × 10 × 10 in


Other Part Number



44610 3D700

New Toyota 4Runner New Vacuum Brake Booster

Part Number: 446103D700 / 44610-3D700

Fits: Toyota 4Runner
Years: 1996 • 1997 • 1998 • 1999 • 2000

What is it for?

A brake booster is to braking what power steering is to steering. A brake booster uses a stored vacuum to overcome the high fluid pressure in a car's braking system. With a brake booster, the driver does not have to exert much force on the brake pedal when applying the brakes. A brake booster is also sometimes called a "vacuum brake booster" for this reason.

How do I know it's time to replace it?

The primary indicator of a faulty brake booster is a stiff brake pedal. Again, this is similar to the experience of power steering being out, which stiffens the wheel of the car. If it takes more force than usual to bring the vehicle to a stop, then very likely the brake booster is failing or has failed completely. This does not mean that the brakes themselves have failed.

2 reviews for 1996 – 2000 Toyota 4Runner New Vacuum Brake Booster (Part Number 446103D700 / 44610-3D700)

  1. Marcos Valbuena

    I had ordered the electric motor for my wife’s 2001, and i recently got this brake booster for mine also (1998). Both times shipping was fast, price reasonable, and the part was a perfect fit. Smooth transaction, highly recommended.

    • Mariano V.

      Marcos, we are glad you and your wife are now choosing us for your auto parts for your Toyota 4Runner. Remember we have all the parts you need and free shipping! Will send you a coupon via e-mail for your next order. Have a great weekend!

  2. salamabich

    mario is a big help – I bought 4 used ones and they were all bad ,I got this new one cheaper and only had to do it one time ,never buying used parts again

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