Give the hydraulic brakes on select classic Ford, Lincoln and Mercury models a brand-new heart with the Dorman First Stop Brake Master Cylinder M98908. It converts pedal force into hydraulic pressure for the brake lines. It is a direct-fit replacement for many vehicles, among them the 1987 Ford Country Squire, the 1987 Ford LTD Crown Victoria and the 1979-1986 Ford LTD; see the "Vehicles it fits" section for the full list.
Dorman precision-engineered this master cylinder to match the original unit's design, function and performance on the listed applications. It is built from high-quality materials intended to provide a safe, durable replacement.
- Precise replacement: The cast-iron cylinder housing matches the casting material of the original part for similar performance.
- Durable design: Every rubber component uses a high-quality EPDM compound that resists glycol-based brake fluid.
- 100% new: It is made entirely from new materials, with quality and safety in mind.
- Strict specifications: It is made to meet rigorous SAE International standards.
Specifications: 1 in. bore diameter · 2 outlets · 7/16-24 rearward outlet · 1/2-20 secondary outlet thread · reservoir included · sensor not included · mounting hardware not included. Package contents: one master cylinder. Country of origin: China.
Signs that a master cylinder may need replacing include a spongy or slowly sinking brake pedal, brake fluid leaking around the cylinder, and a fluid level that keeps dropping. Other brake components can cause the same symptoms, so diagnose the system before replacing parts. Consult the vehicle service information for the correct fasteners and the proper installation procedure.
Interchange: 783-34032 · 83-34032 · 100-2982 · M-81032 · 13-1518 · 13-1519 · 10-1518 · 10-1519 · 130.61032 · 131.61032 · 355-56006
18M255 · M900455 · 11858 · MC78676 · D20Z2140A · D20Z2140B · D9AZ2140A · 2622521 · 78676 · M1519 · M1858 · NM1858 · MC39467 · F78676 · F98908 · MC98908 · 78334032 · 8334032 · 1002982 · M81032 · 131518 · 131519 · 101518 · 101519 · 13061032 · 13161032 · 35556006
This part cross-references / interchanges with the following part numbers:
18M255, 783-34032, 83-34032, M900455, 100-2982, M-81032, 11858, 13-1518, 13-1519, 10-1518, 10-1519, 130.61032, 131.61032, MC78676, 355-56006, D20Z2140A, D20Z2140B, D9AZ2140A, 2622521, 78676, M1519, M1858, NM1858, MC39467, F78676, F98908, MC98908
Frequently Asked Questions
Which vehicles does the Dorman M98908 fit?
It fits many Ford, Lincoln and Mercury models, including the 1987 Ford Country Squire, the 1987 Ford LTD Crown Victoria and the 1979-1986 Ford LTD. See the "Vehicles it fits" section for the full list.
Does this master cylinder come with a reservoir?
Yes, a reservoir is included. A sensor and mounting hardware are not included, so check the vehicle service information for the correct fasteners and whether the originals may be reused.
What is the cylinder housing made of?
The housing is cast iron, made to match the casting material of the original part. All rubber components use a high-quality EPDM compound that resists glycol-based brake fluid.
What are the bore and outlet specifications?
It has a 1 in. bore diameter and two outlets: a 7/16-24 rearward outlet and a 1/2-20 secondary outlet thread.
What are signs a master cylinder may need replacing?
Possible signs include a spongy or slowly sinking brake pedal, fluid leaks at the cylinder, or a steadily dropping fluid level. Diagnose the brake system first, because other components can cause similar symptoms.
