Johnson Evinrude Fuel Pump 397839 395091 for 6–15 HP Outboards
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
- Johnson/Evinrude 6, 8, 9.9, and 15 HP two-strokes using 397839, commonly 1981–1992
- Other 3–25 HP OMC applications only when number and layout match
Product Overview
An engine that runs while the primer bulb is squeezed but dies as it softens may have a weak pulse pump. Tank vent, pickup, bulb, connectors, lines, filter, crankcase pulse, and carburetor inlet must be tested first.
Match port direction, bolt pattern, pulse passage, gasket, and original number—not horsepower alone.
Key Features & Performance
- Pulse-operated two-port pump
- Cross-references Sierra 18-7350
- Gasket included as pictured
Replaces Part Numbers
- 397839
- 397274
- 391638
- 395091
- 18-7350
- 9-35350
Common Uses
- Correcting fuel starvation
- Replacing a leaking diaphragm pump
- Restoring carburetor supply after line tests
Technical Specifications
- Product Type: Pulse Fuel Pump
- Ports: 2 barbed connections
- Condition: New aftermarket
Installation & Fitment
- Ventilate and eliminate ignition sources
- Replace damaged lines and match pulse opening
- Prime, load-test, and inspect for leaks
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Model, production date, serial number, electrical or fuel-system version, dimensions, installed options, and previous repairs can affect fitment. Compare the original part and application information before purchase.
Frequently Asked Questions
Q: Why does squeezing the bulb keep it running? A: You may be manually supplying fuel the pump is failing to deliver.
Q: Does 6–15 HP confirm fitment? A: No. Match engine model, pump number, ports, and mounting.
Q: How do I confirm fitment before ordering? A: Match the original reference number where available, then compare the removed part, dimensions, connections, mounting details, model, serial or production information, and package photos.
Q: Is this an original-equipment part? A: No. This is a new aftermarket part. Brand names and reference numbers are used only to identify compatible applications.
Part Summary
keywords: Johnson 397839 fuel pump, Evinrude 395091 pump, 18-7350 outboard fuel pump, 9.9 HP fuel starvation, 15 HP diaphragm pump, OMC primer bulb repair
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.