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934-8721 fits 100 HP 4cyl Mercury/Mariner 1988-96 models with Serial # OB209468 thru OG437999 as an ignition primary wire set. Used to replace worn or failed ignition components in outboard service.
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Part #: 934-8721
Mercury100 HPPrimary Wire SetWeight: 1 lb
3.0 / 5  (19 votes)
934-8721 fits 100 HP 4cyl Mercury/Mariner 1988-96 models with Serial # OB209468 thru OG437999 as an ignition primary wire set. 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

  • Designed for harsh marine operating conditions
  • Factory-style matched color-coded wiring
  • Supports dependable CDI ignition-system integration
  • Marine-grade insulated conductors

Common Symptoms of a Failing Primary Wire Set

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

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.