Sierra Engine Parts

Sierra 18-7268 Pump Fuel OMC 981650

SKU: 4003017 · UPC: 030999322395 · MPN: 18-7268
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02 · Overview

Sierra 18-7268 Pump Fuel OMC 981650 — Product description

Sierra 18-7268 Marine Fuel Pump - OMC 981650 Direct Replacement

Reliable Marine Fuel System Performance - OEM Quality Aftermarket Solution

Restore reliable fuel delivery to your marine engine with the Sierra 18-7268 fuel pump, engineered as a direct replacement for OMC part number 981650. This high-quality aftermarket fuel pump delivers consistent 5.25-6.5 PSI fuel pressure, ensuring optimal engine performance and reliability for GM marine engines in demanding boating conditions.

OEM-Quality Engineering

Sierra Marine products are engineered to meet or exceed original equipment manufacturer standards, providing reliable performance that matches or surpasses the original factory parts. Each Sierra fuel pump undergoes rigorous quality control testing to ensure consistent fuel delivery and long-term durability in marine environments.

Engine Compatibility

  • Compatible Engines: GM 305, 307, 350, 400 Cubic Inch Marine Engines
  • Engine Types: GM V-8 Marine Applications
  • OEM Replacement For: OMC 981650
  • Cross-Reference: Volvo Penta 3855276, GLM 77102, Mallory 9-35412
  • Flange Configuration: Flange I.D. 41415

Technical Specifications

  • Fuel Pressure Output: 5.25 - 6.5 PSI operating range
  • Pump Type: Mechanical diaphragm fuel pump
  • Construction: Dual diaphragm design with sight glass capability
  • Mounting Hardware: Includes mounting gasket for proper installation
  • Marine Grade: Designed for harsh marine environment operation
  • Quality Standard: Meets or exceeds OEM specifications

Professional Installation Features

  • Direct Bolt-On Replacement: No modifications required for installation
  • Mounting Gasket Included: Ensures proper sealing and installation
  • OEM Flange Design: Exact fit for original mounting points
  • Sight Glass Compatible: Works with dual diaphragm sight glass systems
  • Marine Environment Ready: Corrosion-resistant materials and coatings

Fuel System Performance

The Sierra 18-7268 delivers consistent fuel pressure within the optimal 5.25-6.5 PSI range required for proper carburetor operation. This precise pressure regulation ensures proper fuel atomization, optimal engine performance, fuel economy, and reduced emissions while preventing fuel flooding or starvation conditions.

Quality Assurance

Sierra Marine maintains strict quality control standards throughout manufacturing, ensuring each fuel pump meets the demanding requirements of marine applications. The dual diaphragm design provides backup fuel delivery capability and enhanced reliability compared to single diaphragm pumps.

Marine Environment Durability

Engineered specifically for marine applications, this fuel pump withstands the corrosive effects of marine environments, temperature fluctuations, and the mechanical stresses of marine engine operation. Quality materials and construction ensure dependable performance season after season.

Frequently Asked Questions

Will this pump work on my mid-to-late 80's OMC engine?

Verify your engine's specific requirements. Some mid-to-late 80's OMC engines may require different pump specifications. Check your engine manual or consult a marine technician to ensure proper compatibility.

What's included with this fuel pump?

The Sierra 18-7268 includes the fuel pump and mounting gasket. Professional installation is recommended to ensure proper fuel system operation and safety.

How do I know if my fuel pump is failing?

Common symptoms include hard starting, engine stumbling, loss of power under load, or fuel starvation at high RPM. A fuel pressure test can confirm pump performance within the 5.25-6.5 PSI range.

Is professional installation required?

While this is a direct replacement part, professional installation is recommended to ensure proper fuel system safety, correct torque specifications, and optimal performance.

What other part numbers does this replace?

This pump replaces OMC 981650, Volvo Penta 3855276, GLM 77102, Mallory 9-35412, and other compatible cross-reference part numbers for GM marine engines.

Keep your marine engine running at peak performance with Sierra's proven fuel pump technology. The 18-7268 fuel pump - reliable fuel delivery when you need it most.

Sierra Engine Parts
18-7268
030999322395
USD [product.price] [product.stock]
Pump Fuel OMC 981650


SKU: NVN-4003017
MPN: 18-7268
UPC: 030999322395
03 · The numbers

Technical specifications

BrandSierra Engine Parts
ModelSierra 18-7268 Pump Fuel OMC 981650
SKU / MFR#4003017

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