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934-8721 is a replacement ignition primary wire set used on 50 HP 4cyl Jet Mercury/Mariner 1976-85 models with Serial # 4357640 thru OA912477. Used to replace worn or failed ignition components in outboard service.
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Part #: 934-8721
Mercury50 HPPrimary Wire SetWeight: 1 lb
3.0 / 5  (31 votes)
934-8721 is a replacement ignition primary wire set used on 50 HP 4cyl Jet Mercury/Mariner 1976-85 models with Serial # 4357640 thru OA912477. Used to replace worn or failed ignition components in outboard service.

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

  • Supports dependable CDI ignition-system integration
  • Factory-style matched color-coded wiring
  • Designed for harsh marine operating conditions
  • Designed for switch box and ignition coil connectivity

Common Symptoms of a Failing Primary Wire Set

  • Corroded ignition wiring conductors
  • Damaged or deteriorated ignition wiring
  • Intermittent ignition-system connectivity
  • Electrical-system voltage drop issues

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.