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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.
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Part #: 934-8721
Mercury40 HPPrimary Wire SetWeight: 1 lb
4.0 / 5  (13 votes)
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.

Notes:

Primary wire set replaces harness from coils to switch box. OEM color coded.

List Price: $53.34
Your Price: $31.35
Normally In Stock

In Stock items ship same day if ordered before 3PM CST (excluding weekends and holidays)

Replaces OEM#'s

84-43442A3, 84-73446, 84-88721A1

Product Details

This primary wire set is designed to connect switch boxes and ignition coils using factory-style color-coded wiring for dependable ignition-system integration.

Factory-matched color-coded wiring and marine-grade insulation help simplify installation and support accurate ignition-system routing during replacement.

Features

  • Designed for switch box and ignition coil connectivity
  • Factory-style matched color-coded wiring
  • Helps simplify ignition wiring identification
  • Supports dependable CDI ignition-system integration

Common Symptoms of a Failing Primary Wire Set

  • Intermittent ignition-system connectivity
  • Ignition misfire caused by unstable wiring connections
  • Corroded ignition wiring conductors
  • Damaged or deteriorated ignition wiring

Need Fitment Help?

Tell us your brand, horsepower, and part number. We can help verify fitment before you order.

Support PDF files appear on this page when available.