WAI DST2873A Distributor

Ignition Distributor for Ford and Mercury Applications

The WAI DST2873A ignition distributor is a direct-fit replacement built for select Ford, Mercury, and Lincoln vehicles from the mid-1970s through 1979. It is a 100% new, complete unit with a new cap and rotor, making it ready to install out of the box.

Designed to meet or exceed OE form, fit, and function, this distributor uses a Hall Effect design, aluminum housing, and a melonized steel gear for dependable ignition performance.

Key Features

• 100% new distributor assembly, ready to install
• Hall Effect distributor design
• Aluminum housing with melonized steel gear
• Distributor cap and rotor included
• Spring hook cap attachment method
• Tested to OE specifications for form, fit, and function
• Part number: DST2873A

Detailed Product Overview

WAI DST2873A is engineered as a complete ignition distributor for classic Ford and Mercury platforms, including applications such as the 1974-1976 Ford F-100, 1974-1976 Ford F-250, 1974-1976 Ford F-350, 1974-1976 Ford LTD, 1974-1976 Ford Thunderbird, 1974-1976 Lincoln Continental, and 1974-1976 Mercury Cougar. It also covers select 1978-1979 Mercury Grand Marquis and 1979 Mercury Marquis applications, along with other listed models. The DST2873A is built with all-new components and is tested before release to support consistent ignition timing and reliable spark delivery.

This part cross-references select OE-style distributor numbers such as D4AE 12127-HA and D5AE 12127-DA 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
• Housing or gear wear in older ignition systems
• Failure of the original Hall Effect distributor assembly

Installation Notes and Fitment

Fits 1974-1976 Ford F-100, w/o Governor; 1974-1976 Ford F-250, w/o Governor; 1974-1976 Ford F-350, w/o Governor; 1974-1976 Ford LTD, w/Dual Vacuum; 1974-1976 Ford Thunderbird, w/Dual Vacuum; 1975 Ford E-250 Econoline, w/o Governor; 1975 Ford E-250 Econoline Club Wagon, w/o Governor; 1975 Ford E-350 Econoline, w/o Governor; 1978 Mercury Grand Marquis, w/Dual Vacuum; 1979 Mercury Grand Marquis, w/o Governor; 1979 Mercury Marquis, w/o Governor; 1974-1976 Lincoln Continental, w/Dual Vacuum; 1974-1976 Mercury Cougar, w/Dual Vacuum; 1974-1976 Mercury Marquis, w/Dual Vacuum; 1974-1976 Mercury Montego, w/Dual Vacuum; 1974 Mercury Colony Park, w/Dual Vacuum.

Verify the existing distributor configuration, including vacuum setup and governor requirements, before installation. The unit uses a 15-tooth gear and does not include an ignition coil.

Quality Assurance

WAI manufactures this distributor as a 100% new assembly using high-grade materials and tests each unit for long-lasting performance. The DST2873A is backed by a limited lifetime warranty.