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134-6452 is an ignition trigger built for 45 HP 4cyl Mercury/Mariner 1981-89 models with Serial # 5531630 thru OB393190. Provides the timing signal needed for accurate spark delivery.
Representative image shown. Brand or product appearance may vary slightly depending on current inventory.

Part #: 134-6452
Mercury45 HPTriggerWeight: 1 lb
4.0 / 5  (6 votes)
134-6452 is an ignition trigger built for 45 HP 4cyl Mercury/Mariner 1981-89 models with Serial # 5531630 thru OB393190. Provides the timing signal needed for accurate spark delivery.

Notes:

This trigger has a straight linkage arm. Make sure to check yours before ordering.

List Price: $134.39
Your Price: $122.30
Normally In Stock

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

Replaces OEM#'s

73372A1, 73410A1, 76681A1, 77000A2, 964582A1, 964582A3, 964582A4, 964582A5

Product Details

Designed for reliable ignition synchronization, this marine trigger helps coordinate spark timing events across the engine's RPM range.

Marine-grade insulation materials and sealed pickup circuitry help protect the trigger assembly from humidity, heat cycling, and electrical interference.

Features

  • Helps support dependable throttle response
  • Vibration-resistant electronic components
  • Marine-grade sealed construction
  • Precision ignition timing signal generation

Common Symptoms of a Failing Trigger

  • Hard starting conditions
  • Engine misfire or hesitation
  • Loss of spark synchronization
  • Ignition timing drift after warm-up

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.