TRW PML218 Brake Master Cylinder

TRW PML218 Brake Master Cylinder

TRW PML218 is a brake master cylinder for select Land Rover Discovery V8 models from 1994-1999. Built with an aluminum body and a 25.4 mm bore, it is specified for vehicles that need a direct hydraulic replacement with two mounting holes and two outlet ports.

For Land Rover Discovery brake repair, TRW PML218 provides the core hydraulic component that converts pedal force into brake pressure. The straight-bore design, dual pistons, dust boot, and included gasket or seal support a precise OE-style service replacement for the master cylinder assembly.

Key Features

• Brake master cylinder for 1994-1999 Land Rover Discovery V8 applications
• TRW PML218 part number for catalog matching and service lookup
• 25.4 mm bore diameter with straight bore type
• Aluminum master cylinder construction
• Two piston design with two mounting holes
• Two outlet ports with M10 x 1.0 and M12 x 1.0 primary outlet thread sizes
• Dust boot included
• Gasket or seal included
• No reservoir included

Detailed Description

TRW PML218 is a brake master cylinder engineered for compatible Land Rover Discovery V8 vehicles from 1994 through 1999. It features a 25.4 mm primary bore diameter, aluminum housing, and a straight-bore layout to match the hydraulic requirements of the brake system. The unit includes a dust boot and gasket or seal, while the reservoir, booster, push rod, and mounting hardware are not included. This makes PML218 a focused replacement part for restoring brake hydraulic function on the Land Rover Discovery.

This part cross-references Monroe Shocks & Struts (e.g., STC1284, STC1764) for the same application. Search terms such as Land Rover Discovery brake master cylinder, 1994-1999 Discovery V8 master cylinder, and TRW PML218 replacement help identify the correct hydraulic component for service work.

What It Helps Address

• Low or inconsistent brake pedal pressure
• Internal hydraulic leakage at the master cylinder
• Brake fluid loss around the cylinder body or seals
• Uneven brake response caused by worn master cylinder components
• Brake system service needs on Land Rover Discovery V8 models

Installation Notes and Tips

Verify bore size, outlet thread sizes, and port layout before installation. Transfer or source any required reservoir, booster, push rod, and mounting hardware separately if your vehicle setup requires them. After installation, bleed the brake system thoroughly and inspect all line connections for leaks. Confirm fitment against the vehicle’s brake configuration before final assembly.

Quality Assurance

TRW is a recognized brake component manufacturer, and PML218 is built to meet the dimensional and functional requirements of the listed Land Rover Discovery V8 applications. Use the part number PML218 to confirm catalog accuracy during brake service and replacement.