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.
Fits 85 HP 4cyl Mercury/Mariner 1973-75 models with Serial # 3493913 thru 4366801: 134-3736 is an ignition trigger. Helps synchronize ignition timing with crankshaft position.
Representative image shown. Brand or product appearance may vary slightly depending on current inventory.

Part #: 134-3736
Mercury85 HPTriggerWeight: 1 lb
4.0 / 5  (25 votes)
Fits 85 HP 4cyl Mercury/Mariner 1973-75 models with Serial # 3493913 thru 4366801: 134-3736 is an ignition trigger. Helps synchronize ignition timing with crankshaft position.
List Price: $671.99
Your Price: $611.55
Normally In Stock

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

Replaces OEM#'s

332-4177A3, 393-3736A3, 393-3736A23, 393-3736A77, 393-3736A79

Product Details

This trigger assembly is engineered to provide accurate ignition timing signals for dependable spark sequencing and throttle response.

The assembly uses vibration-resistant electronic components and insulated signal wiring designed for dependable timing performance in marine applications.

Features

  • Supports accurate CDI timing events
  • Precision ignition timing signal generation
  • Designed for stable spark synchronization
  • Helps support dependable throttle response

Common Symptoms of a Failing Trigger

  • Loss of spark synchronization
  • Engine misfire or hesitation
  • Ignition timing drift after warm-up
  • Intermittent ignition timing problems

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.