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RTC3658 - Brake master cylinder RRC metric AP by AP AutomotiveBrake Part Land Rover Range Rover Range Rover

RTC3658 - Brake Master Cylinder – Metric AP

- €225,00
€225,00
€225,00 - €225,00
€225,00
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 AP Automotive
Brake Master Cylinder of the metric AP type, the hydraulic heart of the braking system.

Mounted on the brake servo, the master cylinder converts the force applied at the brake pedal into hydraulic pressure. Its tandem bore feeds the front and rear brake circuits independently, so that braking pressure is retained to one circuit should the other lose pressure.

This is the metric (AP) specification, denoting the metric brake pipe fittings and cylinder design.
Vehicle Model Range Rover Classic up to 1994
Fitment Notes RANGE ROVER CLASSIC 1986-1991 — brake master cylinder, metric (AP), to VIN HA610293
Alternative Codes
RTC3658GRTC3658BR 3576ARTC3658A

In stock 1 unit
0 · Gouda 1 · Drachten
Express delivery available

When will my order arrive?
  • Order before 15:00 (Mon–Fri): same-day dispatch for in-stock items.
  • UPS Express (order before 14:00): dispatched today, delivered tomorrow where available.
  • Netherlands / Belgium / Germany: 2–4 working days.
  • Other EU countries + UK: 4–8 working days.
  • Outside EU/UK: delivery times vary — contact us for an estimate.

Items may ship from multiple warehouses at no extra cost.

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 RTC3658 brake master cylinder and what does it do?
The RTC3658 brake master cylinder converts brake pedal force into hydraulic pressure for the braking system. It mounts on the brake servo, and its tandem bore feeds the front and rear circuits separately so braking is retained if one circuit fails. This is the metric AP specification for the Range Rover Classic.
Which Range Rover Classics does this metric AP master cylinder fit?
This RTC3658 metric AP master cylinder fits the Range Rover Classic built 1986 to 1991, up to VIN HA610293. The metric AP system uses metric brake pipe fittings, so it won't suit later or non-AP setups. Check your VIN falls at or below HA610293 before ordering.
What does the metric AP specification mean for fitment?
The metric AP designation means this RTC3658 master cylinder uses metric brake pipe unions and AP Automotive's cylinder design, per the item data. It matters because the Range Rover Classic changed brake specifications during production. Match your pipe fittings and VIN to avoid ordering the wrong master cylinder.
Why does a brake master cylinder fail and what are the symptoms?
A brake master cylinder fails when its internal seals wear and let pressure bypass, giving a pedal that slowly sinks to the floor or feels spongy. You may also lose fluid with no visible external leak. On a Range Rover Classic a failing master cylinder means unreliable braking and should be replaced.

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