FAST SHIPPING
On Orders Over $99
EXPERT SUPPORT
⌕ TRACK ORDER 🛒 CART (0)

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.
934-8721 is an ignition primary wire set built for 75 HP 4cyl Jet Mercury/Mariner 1984-88 models with Serial # 6432901 thru OC221499. Supports dependable performance in heat, vibration, and moisture.
Representative image shown. Brand or product appearance may vary slightly depending on current inventory.

Part #: 934-8721
Mercury75 HPPrimary Wire SetWeight: 1 lb
4.0 / 5  (33 votes)
934-8721 is an ignition primary wire set built for 75 HP 4cyl Jet Mercury/Mariner 1984-88 models with Serial # 6432901 thru OC221499. Supports dependable performance in heat, vibration, and moisture.

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.

OEM-style wire color matching and durable insulated conductors help support dependable ignition-system electrical transfer and plug-and-play style replacement.

Features

  • Factory-style matched color-coded wiring
  • Marine-grade insulated conductors
  • Designed for harsh marine operating conditions
  • Designed for switch box and ignition coil connectivity

Common Symptoms of a Failing Primary Wire Set

  • Ignition misfire caused by unstable wiring connections
  • Corroded ignition wiring conductors
  • Electrical-system voltage drop issues
  • 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.