Mercer Wiring Diagrams

Mercer · 1914–1926 · Original historical scans

Find your Mercer.

Browse 9 original Mercer wiring diagram sets across 12 year and model packages. Choose a year below, then select the equipment or circuit you need. Matching sheets stay together.

Original 1918–1921 Mercer Series 5 wiring diagram

1921 Mercer

Historical scan

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Original 1918–1921 Mercer Series 5 wiring diagram

1920 Mercer

Historical scan

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Original 1918–1921 Mercer Series 5 wiring diagram

1919 Mercer

Historical scan

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Original 1917–1918 Mercer Series 4; Model 22-74 Series 4 wiring diagram

1918 Mercer

Historical scan

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Original 1917–1918 Mercer Series 4; Model 22-74 Series 4 wiring diagram

1917 Mercer

Historical scan

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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