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114-7452A3 is an ignition switch box built for 25 HP Mercury/Mariner 1979-87 models with Serial # 5705532 thru OB238463. Controls ignition firing sequence on compatible multi-cylinder applications.
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Part #: 114-7452A3
Mercury25 HPSwitch BoxWeight: 2 lb
4.0 / 5  (17 votes)
114-7452A3 is an ignition switch box built for 25 HP Mercury/Mariner 1979-87 models with Serial # 5705532 thru OB238463. Controls ignition firing sequence on compatible multi-cylinder applications.
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

Designed for reliable capacitor discharge ignition control, this marine switch box helps coordinate spark delivery and stable combustion under varying load conditions.

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
  • High-energy CDI ignition switching design
  • Helps maintain reliable spark delivery under load
  • Designed for stable spark sequencing

Common Symptoms of a Failing Switch Box

  • Engine misfire under acceleration
  • Random cylinder firing issues
  • Sudden ignition failure after warm-up
  • Hard starting conditions

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.