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SKU:
NLT2J00029
Ships for free in 2–4 business days.
Vacuum Fuel Pump 808656 491922 691034 for Small Engines
$22.99
In Stock
$22.99
Sale price
$22.99
Regular price
This aftermarket vacuum pulse fuel pump replaces 808492, 808656, 491922, 691034, 692313, and 597338 on compatible carbureted small engines.
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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.
Compatible equipment / model
- Briggs & Stratton engines using 808492, 808656, 491922, 691034, 692313, or 597338
- John Deere equipment using LG808656, M138498, or M145667
- Kohler engines using 24 393 04-S or 24 393 16-S
- Honda applications using 16700-Z0J-003 or 16700-ZL8-013
- Kawasaki applications using 49040-7001
- Miller equipment using 190248
Product Overview
Engines with the fuel tank below the carburetor rely on a pulse pump to lift fuel. When that pump weakens, the engine may start, run briefly, then starve under load even though the carburetor and ignition are working.
This cross-reference pump fits many small-engine applications, but hose routing is critical. Match the inlet, outlet, pulse port, and mounting pattern before ordering.
Key Features & Performance
- Engine-pulse-operated fuel pump
- Common three-port small-engine configuration
- Cross-references multiple Briggs, Deere, Kohler, Honda, and Kawasaki numbers
- Supports steady carburetor fuel supply
- Aftermarket replacement for matching pump layouts
Replaces Part Numbers
- 808492
- 808656
- 491922
- 691034
- 692313
- 597338
- LG808656
- M138498
- M145667
- 24 393 04-S
- 24 393 16-S
- 16700-Z0J-003
- 16700-ZL8-013
- 49040-7001
- 190248
Common Uses
- Repairing fuel starvation when the tank sits below the carburetor
- Replacing a pump that will not draw fuel
- Correcting an engine that dies under load
- Servicing cracked pump fittings or a leaking diaphragm
Technical Specifications
- Part Type: Vacuum/Pulse Fuel Pump
- Port Style: Three hose connections
- Typical Hose Size: 1/4 inch
- Application: Carbureted small engines
- Replacement Type: Aftermarket
Installation & Fitment
- Identify inlet, outlet, and pulse ports before removing hoses
- Replace cracked pulse and fuel hose
- Install a clean filter and confirm tank venting
- Keep hoses away from heat and moving parts
- Check fuel flow and leaks before returning equipment to service
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Cross-reference numbers do not make the pump universal. Compare port orientation, hose size, mounting holes, and engine parts information.
Frequently Asked Questions
Q: How does this pump work? A: Pressure pulses from the engine move an internal diaphragm that draws fuel from the tank.
Q: Why does an engine run with a full tank but die when fuel gets low? A: A weak pump or leaking pulse line may not lift fuel reliably.
Q: Can a plugged tank vent cause the same symptoms? A: Yes. Check the cap vent, filter, hoses, and carburetor before condemning the pump.
Q: Is it OEM? A: No. It is an aftermarket cross-reference pump.
Part Summary
keywords: 808656 vacuum fuel pump, 491922 small engine pump, 691034 pulse fuel pump, Briggs fuel starvation repair, three port mower fuel pump, 692313 replacement
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.