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SJJ500070 - Brake Booster Repair Kit

Original price - Original price €350,00
Original price
€350,00
€350,00 - €350,00
Current price €350,00
OEM Part
OEM: Made by an Original Equipment Manufacturer. This part is made by an original equipment manufacturer or under their license, ensuring compatibility and quality.
Brand TRW
Brake Booster Repair Kit covering the vacuum servo unit that sits between the brake pedal pushrod and the master cylinder in the hydraulic braking circuit.

The servo multiplies pedal effort before it reaches the master cylinder, using the pressure differential between engine vacuum and atmospheric pressure acting across an internal diaphragm. This reduces the pedal load needed to develop a given line pressure. A servo with a perished diaphragm, a failed valve seat or an internal vacuum leak produces a hard, high pedal and increased stopping distances.

The kit is supplied as the servo assembly complete with the O-ring and the master cylinder fixing nuts required to remount the master cylinder to the servo face.

The master cylinder must be detached to renew the servo, and the hydraulic circuit bled after refitting.

Vehicle Model Range Rover Sport 2005-2013 (L320)
Fitment Notes RANGE ROVER SPORT 2005-2009 (L320) — up to VIN 9A999999. 4.4 V8 Petrol / TD6 2.7 Diesel. Brake booster repair kit.
Alternative Codes
SJJ500070

Available to order 2–3 weeks

Not currently in stock. Order now — typically ships within 2–3 weeks.

Need it faster? Contact us about express import (2–5 business days).


When will my order arrive?

This item is ordered from our supplier on request. Typical lead time is 2–3 weeks from order confirmation.

  • Netherlands / Belgium / Germany: 2–4 working days after dispatch.
  • Other EU countries + UK: 4–8 working days after dispatch.
  • Outside EU/UK: contact us for an estimate.

Need it faster? Express import available in 2–5 business dayscontact us before ordering.

Job kits containing this part

This part is included in 0 job kit(s) below. Pick the kit that matches your vehicle and job, then add what you need.

Frequently asked questions

What is the SJJ500070 brake booster repair kit for?
The SJJ500070 is the brake booster repair kit for the Range Rover Sport (L320) built 2005 to 2009, up to VIN 9A999999. It's a TRW OEM kit used to refurbish the brake booster (servo) on the 4.4 V8 petrol and TD6 2.7 diesel models rather than replacing the whole unit.
Which engines does this kit fit?
This kit fits the Range Rover Sport L320 with the 4.4 V8 petrol or the TD6 2.7 diesel engine, built up to VIN 9A999999. Confirm your engine and VIN before ordering, since later L320 models beyond that VIN break use a different setup.
Is fitting the booster kit a DIY job?
Fitting a brake booster repair kit is typically a specialist job, since the booster is part of the braking system and often needs the master cylinder removed and the brakes bled afterwards. Most owners have this done by a workshop to keep the braking system safe.