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474-9550 is an ignition boat harness for 135 HP Mercury/Mariner 1970-71 models with Serial # 2839369 thru 3293233. Helps restore reliable operation on compatible marine ignition systems.
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Part #: 474-9550
Mercury135 HPBoat harnessWeight: 3 lb
3.0 / 5  (23 votes)
474-9550 is an ignition boat harness for 135 HP Mercury/Mariner 1970-71 models with Serial # 2839369 thru 3293233. Helps restore reliable operation on compatible marine ignition systems.

Notes:

20' harness length and includes 6' battery lead.

List Price: $362.69
Your Price: $330.05
Normally In Stock

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

Replaces OEM#'s

84-822253T20

Product Details

Designed for marine rigging applications, this boat harness helps provide stable electrical-system connectivity between the outboard engine, remote controls, and dash instrumentation.

OEM-style connector layouts and matched wire colors help support plug-and-play style integration with compatible engine harness assemblies.

Features

  • Marine-grade insulated conductors
  • Helps simplify installation and wiring identification
  • Designed for dependable marine electrical-system connectivity
  • Supports remote control and gauge integration

Common Symptoms of a Failing Boat Harness

  • Voltage drop caused by deteriorated conductors
  • Unstable engine-to-control-box electrical connectivity
  • Ignition-switch or accessory wiring issues
  • Corroded or damaged harness connectors

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.