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114-7452A3 is an ignition switch box for 20 HP Mercury/Mariner 1979-87 models with Serial # 5705532 thru OB238463. Restores spark control where the original module has failed or become unreliable.
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Part #: 114-7452A3
Mercury20 HPSwitch BoxWeight: 2 lb
4.0 / 5  (29 votes)
114-7452A3 is an ignition switch box for 20 HP Mercury/Mariner 1979-87 models with Serial # 5705532 thru OB238463. Restores spark control where the original module has failed or become unreliable.
List Price: $220.09
Your Price: $106.95
Normally In Stock

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

Replaces OEM#'s

332-7452A2, 332-7452A3

Product Details

This switch box is engineered to manage CDI ignition timing and spark sequencing for dependable ignition performance throughout the engine's operating range.

Sealed marine-grade circuitry and vibration-resistant epoxy encapsulation help protect the switch box from moisture intrusion, corrosion, and damaging engine vibration.

Features

  • Supports dependable ignition timing operation
  • Helps maintain reliable spark delivery under load
  • Marine-grade sealed electronic construction
  • Designed for stable spark sequencing

Common Symptoms of a Failing Switch Box

  • Sudden ignition failure after warm-up
  • Hard starting conditions
  • Random cylinder firing issues
  • Intermittent spark or ignition drop-out

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.