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Power. Reliability. Performance.

Find primary wire sets for Mercury 40 HP outboard engines. These primary wire sets are designed to maintain proper spark timing, ignition performance, and reliable engine operation.

Related tests:
Stator Trigger Power Pack
Switch Box Coil

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Home›Outboard Ignition›Mercury›40 HP›Primary Wire Set

Primary Wire Set

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Primary Wire Set
CDI Electronics 934-8721 Primary Wire Set for 40 HP Mercury Outboards

CDI Electronics 934-8721 Primary Wire Set for 40 HP Mercury Outboards

PART #: 934-8721
(13)

934-8721 fits 40 HP 4cyl Jet Mercury/Mariner 1989-97 models with Serial # OC159200 thru OG589999 as an ignition primary wire set. Helps correct ignition-related running problems on matching applications.
Replaces OEM#: 84-43442A3, 84-73446, 84-88721A1
Primary wire set replaces harness from coils to switch box. OEM color coded.

List Price: $53.34
Your Price: $31.35
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