Sierra 18-8867-1

SKU: 4004298 - UPC: 808282382629 - MPN: 18-8867-1
$292.19 $321.49 ( / )

Available Stock : 2

Upgrade Your Outboard with Reliable Fuel Delivery Keeping your boat's engine running smoothly starts with consistent fuel flow, and that's where a high-performance electric fuel pump shines. Designed for demanding marine environments, this component ensures your outboard motor gets the precise pressure and volume it needs, even during long days...
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Sierra 18-8867-1 Product Description

Upgrade Your Outboard with Reliable Fuel Delivery

Keeping your boat's engine running smoothly starts with consistent fuel flow, and that's where a high-performance electric fuel pump shines. Designed for demanding marine environments, this component ensures your outboard motor gets the precise pressure and volume it needs, even during long days on the water. Whether you're dealing with intermittent stalling, hard starts, or sluggish acceleration, swapping in a quality electric fuel pump can breathe new life into your setup.

Engineered with marine-grade materials, it resists corrosion from saltwater exposure and handles the vibrations of high-speed operation. Boaters often report fewer breakdowns and better throttle response after installation, making it a smart choice for weekend warriors and serious anglers alike.

Perfect Fit for Popular Outboard Models

This electric fuel pump slots seamlessly into a range of outboard engines, matching the specifications of common setups from leading brands. It's a direct replacement that maintains factory-level performance without the hassle of custom modifications. Before installing, double-check your engine's fuel system requirements—look for the pump's pressure rating and flow capacity to confirm compatibility.

  • Supports low-pressure systems typical in smaller to mid-range outboards
  • Compatible with pulse-operated and electric priming designs
  • Ideal for both freshwater and saltwater applications

Pro tip: Cross-reference with your service manual to verify fitment, especially if your boat has aftermarket fuel lines or filters.

Key Features That Stand Out on the Water

What sets this pump apart isn't just reliability—it's the thoughtful engineering that anticipates real-world boating challenges. Built-in filtration helps catch debris before it clogs your injectors, while the compact design makes it easy to tuck into tight engine compartments.

  • Self-Priming Action: Quickly pulls fuel from the tank, eliminating air locks
  • Corrosion-Resistant Housing: Stands up to ethanol-blended fuels and harsh marine conditions
  • Quiet Operation: Minimal noise compared to older diaphragm-style pumps
  • High-Flow Capacity: Delivers steady supply for multi-cylinder engines
  • Easy Electrical Hookup: Standard connectors for straightforward wiring
  • Longevity Focus: Diaphragm and seals rated for thousands of hours

These features translate to peace of mind, so you spend less time wrenching and more time fishing or cruising.

Step-by-Step Installation Guide

Most boaters can handle this upgrade in under an hour with basic tools. Always work in a well-ventilated area and disconnect the battery first to avoid sparks near fuel vapors.

  1. Relieve fuel system pressure by removing the fuel line at the engine and cranking until dry
  2. Disconnect the old pump's electrical leads and fuel hoses—label them for reference
  3. Mount the new pump in the same orientation, securing with provided hardware
  4. Reconnect hoses (use new clamps if needed) and wire to the ignition-switched circuit
  5. Prime the system by cycling the key, check for leaks, then test-run the engine

If you're new to this, grab a buddy or watch engine-specific tutorials. A clean install prevents future headaches.

Maintenance Tips to Maximize Lifespan

Like any fuel system part, proactive care keeps it humming. Inspect hoses and connections annually for cracks or wear, and replace the in-line fuel filter every season. Ethanol in modern fuels can gum up internals, so adding a stabilizer during storage is a game-changer.

  • Flush the system with fresh fuel before winterizing
  • Monitor voltage at the pump—low battery can cause premature failure
  • Avoid running the tank dry, which strains the priming mechanism

Regular checks can extend service life well beyond expectations, saving you from trailering woes.

Common Issues and Quick Fixes

Fuel pump problems often mimic other issues, but here's how to pinpoint them:

Symptom Possible Cause Fix
Engine won't start No prime or low pressure Check wiring and fuse; test with a multimeter
Hesitation under load Clogged inlet screen Remove and clean; inspect tank pickup
Pump hums but no fuel Blocked line or vapor lock Bleed air and replace any kinked hoses

If diagnostics point to the pump, it's often cheaper to replace than rebuild.

Frequently Asked Questions

Is this electric fuel pump suitable for all outboard motors?

No, it's optimized for specific low-pressure systems in popular outboard models. Always verify compatibility with your engine's specs and service manual.

How do I know if my fuel pump is failing?

Look for hard starting, loss of power at high RPM, or unusual whining noises. A simple pressure test at the rail confirms issues.

Can I install this pump myself?

Yes, with basic mechanical skills and tools. It's a plug-and-play swap for most applications, but professional help is wise for complex fuel-injected setups.

Does it work with ethanol-blended gasoline?

Absolutely—materials are ethanol-resistant. Use fuel stabilizer for storage to prevent buildup.

What's the difference between electric and mechanical fuel pumps?

Electric pumps provide consistent pressure regardless of engine RPM and are easier to diagnose. Mechanical ones rely on crankcase pulses and can falter at idle.

How often should I replace the fuel filter with this pump?

Every 100 hours or annually, whichever comes first, to protect the pump and engine.

Will this pump improve fuel efficiency?

Indirectly, yes—proper pressure optimizes combustion, potentially boosting MPG on the water.

FUEL PUMP ELECTRIC



Save $29 when you buy the Sierra 18-8867-1 for only $292 from NVN Marine! Same day shipping before 3pm.

Sierra 18-8867-1 Technical Specifications

Type: 

Engine | Parts / Engine

Vendor: 

Sierra Engine Parts

Weight: 

2.06 lb

Sierra 18-8867-1 User Reviews

Sierra 18-8867-1 Shipping & Return

Shipping Weight: 

2.06 lb

Box Sizes: 

4.00 (h) x 3.00 (w) x 7.00 (l)

Cubic Feet: 

84.0

Returnable: 

Yes

For detailed shipping policy please check our Shipping Policy and you can find our Return and Refund Policy here.

Sierra 18-8867-1

$292.19 $321.49 ( / )