1917 Mercer Wiring Diagrams

1917 · Mercer · Original historical scans

Original wiring, in one place.

View 2 original wiring diagram sets filed for the 1917 Mercer. Select the diagram or equipment below, then open the original sheets.

Models and applications in these sheets: 22-73; Series 4; Model 22-74 Series 4.

Circuits in this package: charging, horn, ignition, lighting, starting.

1917 Mercer

Historical scan

View diagram →
Original 1917–1918 Mercer Series 4; Model 22-74 Series 4 wiring diagramView diagram →
Series 4; Model 22-74 Series 4 — Vehicle wiringSource: National Automotive Service — Internet Archive
Original 1917 Mercer 22-73 — USL wiring diagramView diagram →
22-73 — USL — Wells original blueprintSource: Wells' Automotive Wiring Manual (1922) — Internet Archive
Included diagrams and original sources
All Mercer diagramsAll makes and years

Historical scans are shown as published, with original markings intact. Check the year, model and equipment on the source sheet before use. Shared diagrams may appear in several year packages and are counted once in the collection. Need the rest of the manual? Visit the Library.

Original wiring diagram

Open source ↗