Is this a "red plug" adapter for older Johnson/Evinrude outboards to use newer control box?

Yes, however, with the length it comes in, you will need to add some wiring. I spliced mine using trailer wiring. Works like a charm.

423-6344 Engine Adapter Harness, Durable Replacement Adapter Harness Compatible with 976-1995 Johnson/Evinrude Engine Conversion to New Controls, Direct Replace for #176344

423-6344 Engine Adapter Harness, Durable Replacement Adapter Harness Compatible with 976-1995 Johnson/Evinrude Engine Conversion to New Controls, Direct Replace for #176344

4.0/5

Product ID: 524573323

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Details

Brand
Sunluway
Material
Plastic Rubber
Item Weight
0.4 Pounds
Cable Type
proprietary
Connector Type
Deutsch

🔌Plug & play easy install

⚙️18-inch precision fit

🛡️Corrosion & rust resistant

Description

⚡ Upgrade your legacy engine with next-gen reliability!

PREMIUM COPPER CORE - High-quality copper wiring ensures optimal conductivity and rugged reliability under demanding conditions.
PLUG PLAY SIMPLICITY - No-fuss installation means you’re back on the water faster—no special tools or rewiring needed.
MARINE GRADE DURABILITY - Built to withstand harsh marine environments with corrosion and rust-resistant materials for long-lasting performance.
PRECISION ENGINEERED FIT - Exact 18-inch length and OEM-level standards guarantee a perfect, direct replacement every time.
SEAMLESS VINTAGE TO MODERN UPGRADE - Effortlessly adapt 1976-1995 Johnson/Evinrude engines to new Deutsch controls without hassle.

The 423-6344 Engine Adapter Harness by Sunluway is a durable, corrosion-resistant 18-inch harness designed to seamlessly convert 1976-1995 Johnson and Evinrude engines to modern Deutsch controls. Featuring premium copper wiring and a plug-and-play design, it ensures a perfect fit and long-lasting marine-grade performance.

Reviews

4.0

All from verified purchases

A**L

Wiring needed to be lengthening

Work but had to add length on wiring was little short

25.02.2025

B**D

WAY too short

Convenient for an engine or control swap. Had to relocate the existing box to the "hot" side of the motor, and the wires of the harness adapter are tight against the head of the engine.The adapter should be much longer, bulk wire isn't that expensive considering what they're charging for this adapter.

1.10.2024

P**.

does not fit as advertised

did not work on my 1993 140 HP missing the connection for power pack

13.06.2025

A**R

Thanks

29.12.2023

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TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

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Manufacturer	Sunluway
Brand	Sunluway
Model	423-6344
Item Weight	6.4 ounces
Package Dimensions	10.24 x 7.24 x 1.54 inches
Item model number	423-6344
Exterior	Machined
Manufacturer Part Number	423-6344

423-6344 Engine Adapter Harness, Durable Replacement Adapter Harness Compatible with 976-1995 Johnson/Evinrude Engine Conversion to New Controls, Direct Replace for #176344

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