WAI DST2831B Distributor

Ignition Distributor for Ford and Mercury V8 Applications

The WAI DST2831B ignition distributor is a 100% new, complete unit built for direct replacement in select Ford, Lincoln, and Mercury applications with single vacuum advance. It is engineered to meet or exceed OE form, fit, and function, with a new cap and rotor included for a ready-to-install setup.

Designed for point-type ignition systems, this distributor uses an aluminum housing, melonized steel gear, and 15-tooth gear design for dependable operation in classic Ford Mustang, F-150, Thunderbird, and related vehicles.

Key Features

• 100% new distributor assembly, ready to install out of the box
• Tested to OE specifications for form, fit, and function
• Point-type distributor design for select vintage ignition systems
• Aluminum housing with melonized steel gear for durability
• Distributor cap and rotor included
• Clip-style cap attachment method
• 15-tooth gear configuration

Detailed Product Overview

WAI DST2831B is a direct-fit ignition distributor for a wide range of 1977-1985 Ford, Lincoln, and Mercury vehicles, including 1979-1985 Ford Mustang, 1977-1984 Ford F-150, and 1977-1983 Mercury Cougar applications with single vacuum. It is built as a complete replacement unit using all new components, making it a practical choice when restoring ignition performance on older carbureted vehicles. This part cross-references OE-style part numbers E5ZE12127BA and E5ZZ12127B for the same application.

Common Issues This Part Can Address

• Hard starting caused by worn distributor internals
• Misfire or rough idle from inconsistent spark timing
• Distributor cap and rotor wear affecting ignition output
• Timing instability in point-type ignition systems
• Driveability problems in aging Ford, Lincoln, and Mercury engines

Installation Notes and Tips

Verify engine configuration before ordering, since this distributor is listed for single-vacuum applications only. Confirm the 15-tooth gear count, point-type ignition setup, and cap attachment style match the original unit before installation. Set base timing after installation and inspect plug wires, ignition points, and vacuum advance components to ensure the system operates correctly.

Quality Assurance

WAI manufactures this distributor with new components and tests each unit for long-lasting performance. The part is backed by a limited lifetime warranty.