WAI DST2831A Distributor

WAI DST2831A Distributor for Ford and Mercury

The WAI DST2831A ignition distributor is a 100% new replacement built for direct-fit service on select Ford and Mercury applications. It is engineered to meet or exceed OE form, fit, and function, with a complete design that arrives ready to install out of the box.

• 100% new distributor assembly
• Tested to OE specifications for form, fit, and function
• Aluminum housing with melonized steel gear material
• Point-type distributor design
• Distributor cap and rotor included
• Distributor cap attaches with screws
• Ignition coil not included
• 15-tooth gear
• New cap and rotor supplied with each unit

Detailed Product Overview

The WAI DST2831A is a complete ignition distributor for classic Ford Bronco, F-Series, Econoline, LTD, and select Mercury models that use a single vacuum setup. It is built with all-new components and precision-engineered materials to support consistent ignition timing and dependable engine operation. This part cross-references Ford OE numbers E5ZE 12127-BA and E5ZZ 12127-B for the same application.

Compatible With 1974-1977 Ford Bronco, w/Single Vacuum; 1974-1976 Ford F-100, w/Single Vacuum; 1975-1976 Ford F-150, w/Single Vacuum; 1974-1976 Ford F-350, w/Single Vacuum; 1975-1976 Mercury Monarch, w/Single Vacuum; 1974-1975 Ford E-100 Econoline, w/Single Vacuum; 1975 Ford E-150 Econoline, w/Single Vacuum; 1975 Ford E-250 Econoline, w/Single Vacuum; 1975 Ford E-350 Econoline, w/Single Vacuum; 1974 Ford F-250, w/Single Vacuum; 1974 Ford LTD, w/Single Vacuum; 1974 Mercury Montego, w/Single Vacuum.

Common Uses

• Restoring ignition performance on a worn or failing distributor
• Addressing rough idle caused by distributor wear
• Replacing a unit with damaged cap, rotor, or housing components
• Correcting timing instability in classic Ford and Mercury engines
• Returning proper spark distribution to single-vacuum applications

Installation Notes

Verify engine application, vacuum configuration, and gear tooth count before installation. The WAI DST2831A includes a cap and rotor, and the ignition coil is not included. Because this is a point-type distributor, confirm that the ignition system matches the vehicle’s original setup before service. For best results, set base timing after installation and inspect related ignition components during replacement.

Quality Assurance

WAI manufactures this distributor as a 100% new unit using all-new components and tests each assembly to OE specifications. The design is intended to provide direct-fit installation and long-term service consistency, and it is backed by a limited lifetime warranty.