Sierra Engine Parts

Sierra 18-7805 Fuel Pump Kit F2A24747-1

SKU: 4003077 · UPC: 808282259921 · MPN: 18-7805
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02 · Overview

Sierra 18-7805 Fuel Pump Kit F2A24747-1 — Product description

Keep your boat's engine running smoothly on every outing with the Sierra 18-7805 Fuel Pump Kit, a direct replacement for the OEM F2A24747-1 part. Designed for marine enthusiasts who demand reliability without the premium price tag, this kit delivers consistent fuel flow to prevent stalls, hesitation, or hard starts that can ruin a perfect day on the water.

Precision Engineering for Peak Performance

Crafted with high-grade materials, the Sierra 18-7805 features a durable diaphragm and robust housing that withstands the corrosive marine environment. Unlike stock pumps that wear out from ethanol-blended fuels, this kit resists degradation, ensuring long-term operation even in saltwater conditions. Boaters report fewer breakdowns and more dependable idling after swapping in this upgrade.

Seamless Compatibility with Your Outboard

This fuel pump kit bolts on effortlessly to a range of Mercury outboard models, matching the exact specifications of the original F2A24747-1. It's ideal for 2-stroke engines where precise pressure regulation is key to optimal combustion. Always cross-check your engine's service manual to confirm fitment, but users with similar setups rave about the plug-and-play installation that saves hours at the dock.

Easy DIY Installation Steps

  • Drain the fuel system and disconnect the battery for safety.
  • Remove the old pump by loosening fuel lines and mounting bolts—use thread sealant on new fittings to prevent leaks.
  • Install the new diaphragm, springs, and gaskets from the kit, reassembling in reverse order.
  • Prime the system with fresh fuel and test for pressure before firing up the engine.

Most swaps take under an hour with basic tools, putting you back on the water faster. Pro tip: Inspect fuel lines and filters during replacement to catch potential issues early.

Why Boaters Trust Sierra Over OEM

Sierra parts like the 18-7805 stand out for their rigorous testing to meet or exceed factory standards, often at a fraction of the cost. Real-world feedback highlights improved throttle response and reduced vapor lock in hot climates. It's not just a replacement—it's a smarter choice for maintaining your investment without compromising safety or performance.

Extend Fuel System Longevity

Pair this pump with routine maintenance like using fuel stabilizers and ethanol treatments to combat modern gas issues. Regularly check for clogs or wear, and this kit could outlast multiple seasons of heavy use. Anglers and weekend warriors alike appreciate the peace of mind knowing their fuel delivery is rock-solid.

Frequently Asked Questions

What engines is the Sierra 18-7805 Fuel Pump Kit compatible with?

It's a direct fit replacement for Mercury outboards using the F2A24747-1 OEM part, typically found in select 2-stroke models. Verify against your engine serial number for exact match.

Does this kit include all necessary components for installation?

Yes, the Sierra 18-7805 comes complete with diaphragm, gaskets, springs, and hardware, so you have everything needed right out of the box.

How does this fuel pump handle ethanol fuels?

Built with ethanol-resistant materials, it performs reliably with E10 and similar blends, reducing the risk of swelling or cracking common in older pumps.

What are the signs my fuel pump needs replacing?

Look for hard starting, loss of power at high RPMs, or fuel leaks. If pressure drops below spec (usually 3-7 PSI), it's time for a new one like the Sierra 18-7805.

Can I install this kit myself without special tools?

Absolutely—basic wrenches, screwdrivers, and a fuel pressure gauge suffice. No marine mechanic certification required for most users.

How often should I replace the fuel pump?

Every 3-5 years or 300-500 hours of use, depending on fuel quality and storage conditions. Proactive swaps prevent on-water failures.

Is the Sierra 18-7805 suitable for saltwater use?

Yes, its corrosion-resistant construction makes it perfect for brackish or ocean environments, just like OEM parts.

Fuel Pump Kit F2A24747-1


SKU: NVN-4003077
MPN: 18-7805
UPC: 808282259921
03 · The numbers

Technical specifications

BrandSierra Engine Parts
ModelSierra 18-7805 Fuel Pump Kit F2A24747-1
SKU / MFR#4003077

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04 · Before you buy

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05 · Customer voices

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