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474-9550 is a replacement ignition boat harness used on 90 HP 6cyl Mercury/Mariner 1978-79 models with Serial # 4845301 thru 5595646. Helps correct ignition-related running problems on matching applications.
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Part #: 474-9550
Mercury90 HPBoat harnessWeight: 3 lb
4.0 / 5  (7 votes)
474-9550 is a replacement ignition boat harness used on 90 HP 6cyl Mercury/Mariner 1978-79 models with Serial # 4845301 thru 5595646. Helps correct ignition-related running problems on matching applications.

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

Built for reliable marine electrical-system operation, this boat harness supports dependable signal transfer between the engine harness, control box, ignition switch, and gauges.

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
  • Color-coded marine-grade wiring
  • Designed for dependable marine electrical-system connectivity
  • Helps simplify installation and wiring identification

Common Symptoms of a Failing Boat Harness

  • Corroded or damaged harness connectors
  • Intermittent gauge or control-box operation
  • Unstable engine-to-control-box electrical connectivity
  • Electrical-system connection failures

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.