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114-7509 is a replacement ignition switch box used on 40 HP 2 and 3cyl Mercury/Mariner 1996-2005 models with Serial # OG380075 thru OT999999. Helps keep the ignition system firing consistently in marine use.
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Part #: 114-7509
Mercury40 HPSwitch BoxWeight: 2 lb
4.0 / 5  (12 votes)
114-7509 is a replacement ignition switch box used on 40 HP 2 and 3cyl Mercury/Mariner 1996-2005 models with Serial # OG380075 thru OT999999. Helps keep the ignition system firing consistently in marine use.
List Price: $117.31
Your Price: $106.80
Normally In Stock

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

Replaces OEM#'s

827509A1, 827509A3, 827509A4, 827509A7, 827509A9, 827509A10, 827509T7

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

  • Vibration-resistant internal circuitry
  • Supports dependable ignition timing operation
  • Designed for stable spark sequencing
  • Marine-grade sealed electronic construction

Common Symptoms of a Failing Switch Box

  • Engine misfire under acceleration
  • Hard starting conditions
  • Random cylinder firing issues
  • Loss of top-end RPM

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.