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Seastar Solutions IH15105 Mercury Mariner Outboard Tachometer Wiring Harness Code B 5-Wire

Manufacturer

Seastar Solutions

<h3>About Seastar Solutions</h3><p><strong>Seastar Solutions</strong> has been a cornerstone of the recreational marine industry for more than eight decades. <a href="/7554-seastar-solutions-seastar-solutions-hydraulic-steering-200917">Founded in 1943</a> and headquartered in Litchfield, Illinois, the company built its reputation under the Teleflex Marine name before rebranding to Seastar Solutions in February 2013. In 2017, it was acquired by the Dometic Group, further expanding its global reach while preserving the engineering heritage that boaters had come to rely on.</p><h3>A Legacy of Marine Innovation</h3><p>Seastar Solutions' story of innovation begins in 1962, when the company introduced the Big-T cable steering system — a revolutionary design that replaced the traditional rope-and-pulley mechanism with a helical cable, fundamentally changing how small boats are steered. In the decades that followed, the brand continued pushing the boundaries of marine engineering, introducing firsts like tilt steering for recreational boats, CANBUS steer-by-wire technology, and award-winning systems like the Optimus 360 Joystick Control System.</p><p>Today, Seastar Solutions products are sold worldwide under the SeaStar, BayStar, Sierra, Prime Line, and Proheat brands — each recognized for quality, reliability, and technical innovation. Whether you're outfitting a weekend fishing boat or a high-performance offshore vessel, Seastar Solutions offers a system engineered to match your needs.</p><h3>Hydraulic Steering: The Heart of the Lineup</h3><p>At the core of the Seastar Solutions catalog is its industry-leading line of <a href="/7554-seastar-solutions-seastar-solutions-hydraulic-steering-200917">hydraulic steering systems</a>. Covering outboard, inboard, and sterndrive applications, these systems — including the popular SeaStar Pro and BayStar series — are the benchmark for smooth, precise helm control. From hydraulic helm pumps and cylinders to hoses, fittings, and complete kits, Seastar Solutions provides everything needed to build or upgrade a fully capable steering system.</p><p>The brand's hydraulic systems are particularly valued for high-horsepower setups, where mechanical steering can become fatiguing and imprecise. By routing hydraulic fluid through a sealed system, these helms deliver consistent feedback and effortless control regardless of engine load — a key safety and comfort advantage for serious mariners.</p><h3>OEM Quality for Aftermarket Needs</h3><p>One of the most trusted aspects of the Seastar Solutions brand is its compatibility across generations of boats. Because the company carries forward the engineering legacy of Teleflex Marine, most legacy steering components integrate seamlessly with current Seastar parts. This makes Seastar Solutions a reliable choice not only for new builds but also for long-overdue upgrades or routine maintenance on existing vessels.</p><p>From control and throttle cables to installation hardware, cylinders, helms, and fluid maintenance kits, Seastar Solutions covers the full spectrum of marine steering and control needs — making it the go-to source for boaters who demand performance they can count on.</p>

Part Number

IH15105
06/03/2036 3:23 PM
Sale Price

$103.18

3 left at this price

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Usually delivered within 2 days

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Product Details

The Seastar Solutions IH15105 is a tachometer wiring harness designed specifically for Mercury and Mariner outboard engines. This harness provides a reliable connection between your tachometer gauge and the engine's control system, ensuring accurate RPM readings.

Key Features:

  • Code B sender configuration for compatibility with Mercury/Mariner outboard engines
  • 5-wire design with BIA color-coded wiring for easy identification
  • Eliminates field wiring problems and enables fast installation
  • Connects tachometer through the engine manufacturer's remote throttle and shift control box
  • Factory-terminated connections for plug-and-play installation

This OEM-quality replacement harness is engineered to meet strict marine standards, providing dependable performance in harsh saltwater and freshwater environments. The color-coded wires simplify installation and reduce the risk of wiring errors, making it an ideal solution for both professional marine technicians and DIY boat owners.

fairly easy/straightforward

So far so good, we'll see how the shipping goes. "Ground shipping" is vague. UPDATE: Received everything in a timely manner. Might be ordering more!

Autoplicity had the lowest price by far and shipping was very fast (ordered Wednesday evening, arrived Saturday morning). I will definitely order from Autoplicity again!

price is reasonable great web site don't have to go through an act of congress to find what you need. Thank you.

quick ....I hope the product is what I am looking for

Quick shipping, lowest prices.

great so far... I really hope that it is the right part.

Smoothly designed web site, and I appreciate the convenience of the optional payment via Amazon.

lowest price I could find; simple checkout

Autoplicity Highly Recommended!!! I placed an order on Monday and even though I used ground shipping I had that order in hand two days later on Wednesday! (Order Number: 17813) Fantastic PriceΓÇÖs and the Fastest Shipping on the web! Amazon Payments was fast and easy to use. I will absolutely be checking Autoplicity First for all my future auto needs. Thanks for the Great PriceΓÇÖs and Service! Keep up the good work!

Phone service was quick and personable wanting to solve my problem immediately. The weight of my package was wrong causing shipping to be $300 to ship a gas can but was fixed right away. Prices were great! I would purchase through them again!

Great prices. Fast service.

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