This original 1980s module features the internal green circuit board stamped with reference 25074657 and is housed inside its original black protective casing stamped with part number 25031956.

Please note: This is a classic estate barn find. I am not a mechanic, nor am I an expert on vintage automotive electronics. Because of this, please closely review the detailed photos and double-check your vehicle's existing module, service manual, or part cross-references to ensure this exact part number is the right match for your restoration project before purchasing.

Vehicle Fitment (Common 1984–1989 Models):

This part was highly common across many classic GM platforms of the mid-to-late 1980s, including:

* Chevrolet & GMC: C10, C20, C30, K10, K20, S10 Trucks, Blazer, Suburban, Camaro, Caprice

* Pontiac, Oldsmobile, & Buick: Firebird, Cutlass, Regal, LeSabre (Check parts catalog for specific engine/chassis options)

Condition:

New Old Stock (NOS). Pristine internal board components with crisp original coloring and clean trace lines. The outer original blue AC Delco box is included but shows heavy shelf wear, staining, and flattening from decades of barn storage. The electronic module itself is in beautiful, clean condition.

Ships securely padded to protect the vintage circuit components. Thanks for looking!

New Old Stock (NOS). Pristine internal board components with crisp original coloring and clean trace lines. The outer original blue AC Delco box is included but shows heavy shelf wear, staining, and flattening from decades of garage storage. The electronic module itself is in beautiful, clean condition.

(Please double-check your vehicle's existing module or assembly manual to ensure this exact part number is the right match for your restoration project).

Ships securely padded to protect the vintage circuit components. Thanks for looking!