Mercury – Fuel Tank Harness | 240-Inch Tank Sender Lead | 84-898289T76

Overview

Large offshore rigs and high-horsepower sterndrives often place the fuel tank far from the engine rigging point, and a standard harness just won’t reach. The Mercury 84-898289T76 Fuel Tank Harness gives you a full 240 inches of length—enough to make a clean, reliable connection between the tank sender and engines like the 350 Verado SCI or the 565–1650 Racing sterndrive series. It’s built for long runs where accuracy and durability matter.

Key Features

• 240-Inch Extension – Provides twenty feet of length for long-distance tank-sender routing.
• Stable Fuel-Level Signal – Carries clean data from the tank sender to the engine harness.
• High-Performance Coverage – Designed for the 350 Verado SCI and 565–1650 Racing sterndrives.
• Long-Run Capability – Built for boats with large footprints or deep rigging tunnels.
• OEM Connector Ends – Factory plugs ensure tight, dependable connections.
• Flexible Marine Cable – Routes smoothly through bulkheads, chases, and extended rigging paths.

Compatibility

• 350 Verado SCI
• 565–1650 Mercury Racing sterndrives
• Fuel tank senders requiring long-run harnessing

Performance & Practical Benefits

This harness gives you the distance needed to route fuel-sender wiring cleanly on big boats or performance hulls. With a full 240 inches to work with, the cable can follow natural rigging paths without strain, sharp bends, or improvised extensions. Once connected, the signal stays stable, helping the helm display accurate fuel-level information—even on long, vibration-prone runs.

Why Buy OEM

Fuel-level accuracy depends on proper wiring, tight connectors, and durable shielding. Mercury’s OEM harness maintains those standards across the full length, preventing voltage drop, noise, or erratic readings that often show up with off-brand extensions. The factory build is made to withstand heat, movement, and real-world marine conditions.

FAQ

Q1: When do I need the 240-inch harness?
When the fuel tank sender sits far from the engine rigging point—common on large consoles and Racing sterndrive boats.

Q2: Does this harness improve fuel-level accuracy?
It keeps the signal steady over long distances, which helps the gauge or display stay consistent.

Q3: Is it only for sterndrives?
No. It’s used heavily on the 350 Verado SCI as well, or any setup that needs this length.

Q4: Does it require special installation steps?
No. It plugs directly into the sender lead and engine harness using factory connectors.

Q5: Can it handle harsh rigging routes?
Yes. The OEM cable jacket and connectors are built for long-term marine exposure.