Sierra Johnson/Evinrude Wiring Harness 18-99427, 2 Cylinder, Fits 1979-1984 40-66 HP Cross Flow Engines

The Sierra 18-99427 wiring harness is a direct replacement wiring harness built for 2-cylinder Johnson/Evinrude Cross Flow outboard engines. It carries the ignition, charging, and control wiring between the engine components and the control box, restoring a clean electrical connection on outboards where the original harness has cracked, corroded, or shorted out. The harness is constructed of insulated copper wire for reliable conductivity and uses a DIN connector for a factory-style plug-in fit.

This harness is sized for 1979-1984 Johnson/Evinrude Cross Flow engines rated 40, 50, 60, and 66 HP. It ships as a single-piece harness assembly, making installation straightforward for anyone replacing a failed or deteriorated original harness rather than tracing and repairing individual wires.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-99427
• Category: Evinrude Outboard Electrical System
• Material: Insulated Copper Wire
• Connector Type: DIN
• Cylinder Count: 2 Cylinder
• Item Dimensions: 7 x 9 x 2.5 inches
• Weight: 0.7 pounds
• Number of Items: 1
• UPC: 808282394585

Fitment

• Johnson/Evinrude Cross Flow engines, 1979-1984, 40, 50, 60 and 66 HP, 2 cylinder

Replaces (OEM)

• 767968
• 583005
• 582061

Frequently Asked Questions

What engines does the Sierra 18-99427 wiring harness fit? The Sierra 18-99427 harness fits 2-cylinder Johnson/Evinrude Cross Flow outboard engines from 1979-1984 rated 40, 50, 60, and 66 HP.

What OEM part numbers does this harness replace? It replaces OEM Johnson/Evinrude part numbers 767968, 583005, and 582061.

What material is the wiring made from? The harness uses insulated copper wire throughout for reliable electrical conductivity.

What connector type does the harness use? A DIN connector is used, matching the factory connection point on compatible Johnson/Evinrude Cross Flow engines.

How much does the 18-99427 harness weigh? This wiring harness weighs 0.7 pounds.

What are the dimensions of the harness as packaged? The harness measures 7 x 9 x 2.5 inches.

Is this a complete engine harness or individual wires? The 18-99427 is supplied as a single complete harness assembly, not individual wires, so it installs as one unit.

How many cylinders is this harness designed for? It is designed specifically for 2-cylinder Johnson/Evinrude Cross Flow engines, not 3-, 4-, or 6-cylinder models.

Does the 18-99427 harness fit engines outside the 1979-1984 range? No, this harness is specified for the 1979-1984 model years on the covered 40-66 HP Cross Flow engines.

How many of these come in a package? The 18-99427 wiring harness ships as a single item, one harness per package.