Skip to content
8–23 August: reduced summer staffing. Orders may take up to 5 extra working days to dispatch and emails up to 2 working days to answer. Thanks for your patience.
8–23 Aug: orders may ship up to 5 days later.

NTC4991G - Brake Master Cylinder – No Reservoir

Original price - Original price €210,00
Original price
€210,00
€210,00 - €210,00
Current price €210,00
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 Master Cylinder for the brake hydraulic circuit, converting brake-pedal force into hydraulic pressure supplied to the front and rear brake lines.

Supplied without the fluid reservoir, so the existing reservoir is carried over or sourced separately; the companion reservoir is RTC5833.

Servo-assisted, non-ABS application.
Vehicle Model Land Rover Discovery 1 1989-1998 (L318)
Range Rover Classic up to 1994
Fitment Notes RANGE ROVER CLASSIC 1986-1994 — Brake master cylinder, without reservoir; from VIN DA301158 (1986-1991 to VIN HA610293; 1992-1994 from VIN JA610294)
DISCOVERY 1 1989-1998 — Brake master cylinder, without reservoir; servo-assisted / non-ABS, VIN FA393361 to WA799999
Replacement is supplied complete with reservoir.
Alternative Codes
NTC4991NTC4991GBR 1121

In stock 1 unit
1 · Gouda 0 · 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 does the NTC4991 brake master cylinder do?
The NTC4991 brake master cylinder converts brake-pedal force into hydraulic pressure for the front and rear brake circuits. It's a servo-assisted, non-ABS unit fitting the Discovery 1 (1989-1998) and Range Rover Classic (1986-1994). Made by TRW to OEM specification.
Does the NTC4991 come with a fluid reservoir?
No, the NTC4991 is supplied without the fluid reservoir. You either carry over your existing reservoir or fit the companion reservoir kit RTC5833. Check the condition of your old reservoir before reusing it.
How do I confirm the NTC4991 fits my vehicle?
The NTC4991 fits the servo-assisted, non-ABS Discovery 1 from VIN FA393361 to WA799999, and the Range Rover Classic. It won't suit ABS-equipped cars. Use your VIN to confirm the variant before ordering.
What are the signs a brake master cylinder needs replacing?
A failing brake master cylinder typically shows a brake pedal that slowly sinks under steady foot pressure, spongy braking, or fluid loss with no visible external leak. Internal seal bypass is the usual cause. Braking performance drops, so replace it promptly.