1852074 MKR-US2-14 8-Pin Adaptor Cable for Garmin Fishfinders

In this review the 1852074 MKR-US2-14 adaptor cable is evaluated as a practical replacement cable for anglers who need a dependable way to connect a Universal Sonar 2 transducer to a Garmin echoMAP or GPSmap series fishfinder. The bottom line: this adapter is for boat owners and serious anglers who want an IP68-rated, metal-tipped waterproof connection that preserves DualBeam PLUS and temperature sensing features while matching original equipment fit and pinout. It is not a flashy accessory, but it is a targeted repair part that simply needs to work when it matters.

Key Features

• Universal Sonar 2 compatibility: Keeps DualBeam PLUS and advanced temperature sensing functioning by connecting the Universal Sonar 2 transducer to compatible fishfinders.
• OE replacement fit: Designed to replace OE part 1852074 and match accessory code MKR-US2-14 so installation uses the same connector layout as the original.
• Waterproof connectors: IP68-rated, metal-tipped connectors resist water intrusion and reduce sonar interference for reliable signal quality.
• Durable build: Constructed from premium-grade steel, brass and PVC to withstand exposure to weather and trolling motor vibration.
• Compact length: At 10.2in/26cm the 8-pin cable provides a short, tidy connection point ideal for mounting on a trolling motor without excess slack.
• Simple installation: The keyed 8-pin design and threaded collar let users align pins and tighten quickly with no special tools.

Who It's For

The adaptor is best for anglers who already use a Garmin echoMAP or GPSmap series fishfinder and want to connect a Universal Sonar 2 transducer on a trolling motor without re-wiring or modifying the transducer or display. Its compact 10.2in length and OEM-style 8-pin plug make it suitable for kayak, bass boat and midsize boat installations where a short, sealed cable is preferred.

It is less suitable for users who need extra cable length or a custom wiring harness; this is a direct replacement/adapter cable rather than a long extension or multi-branch solution. Those needing bespoke installation options should look for extension leads or custom wiring kits instead.

Pros & Cons

Pros

• IP68-rated metal-tipped connectors provide robust waterproofing and reduce interference.
• Direct OE replacement fit preserves DualBeam PLUS and temperature sensing on supported units.
• Sturdy materials and threaded collar deliver a dependable, vibration-resistant connection.
• Short length keeps cabling tidy on the trolling motor and reduces snag risk.

Cons

• Fixed 10.2in length may be too short for some installations requiring additional reach.
• Single-purpose adapter; not a full-length replacement cable or multi-connector harness.

Specifications

Part	1852074 MKR-US2-14 adaptor cable
Connector	8-pin threaded, metal-tipped
Length	10.2in / 26cm
Compatibility	Garmin echoMAP and GPSmap series fishfinders
Sonar Support	Universal Sonar 2, 200 kHz / 83 kHz DualBeam PLUS
Materials	Steel, brass and PVC construction
Waterproof Rating	IP68

Our Verdict

The 1852074 MKR-US2-14 adaptor cable is a no-nonsense replacement for anglers who need reliable connectivity between a Universal Sonar 2 transducer and compatible Garmin echoMAP or GPSmap displays. It delivers solid waterproofing, OEM-style fit and DualBeam PLUS support at a modest cost, making it good value for anyone replacing a failed connector or converting a trolling motor to Universal Sonar 2. Choose this cable when you need a rugged, easy-to-install adapter rather than a long custom lead.

Frequently Asked Questions

Will this adapter preserve temperature sensing?
Yes. The adapter supports Universal Sonar 2 temperature sensing so fishfinder temperature readouts remain functional.

Is the connector waterproof enough for constant submersion?
Yes. The metal-tipped connectors are rated IP68, designed to resist water ingress and harsh weather conditions.

Will it fit my Garmin unit?
It is designed for many echoMAP and GPSmap series models; check the product compatibility list before purchase to confirm a match.