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SKU:
NLT2J00327
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Vacuum Fuel Pump for John Deere L100 LA Series and Z425 Mowers
$22.99
In Stock
$22.99
Sale price
$22.99
Regular price
This aftermarket vacuum-operated fuel pump fits compatible John Deere L100, L118, L120, LA120, LA130, LA140, LA145, LA150, and Z425 lawn equipment.
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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
- John Deere L100
- John Deere L118
- John Deere L120
- John Deere LA120
- John Deere LA130
- John Deere LA140
- John Deere LA145
- John Deere LA150
- John Deere Z425
Product Overview
When a mower runs for a short time and dies as the carburetor bowl empties, the problem may be fuel delivery rather than spark. This pulse pump draws fuel from the tank on compatible John Deere lawn tractors and zero-turn mowers.
The engine package determines the pump more reliably than the hood decal. Compare the original pump body and hose routing, then inspect the pulse line and tank vent before ordering.
Key Features & Performance
- Vacuum/pulse-operated mower fuel pump
- Supports steady fuel supply to the carburetor
- Fits selected L, LA, and Z-series machines
- Useful for verified low fuel-pump output
- Aftermarket replacement with common three-port layout
Replaces Part Numbers
- LG808656
- 808656
- M138498
- M145667
- 491922
- 691034
- 692313
Common Uses
- Fixing a mower that starts and then runs out of fuel
- Replacing a pump that cannot lift fuel from the tank
- Correcting fuel starvation on slopes or under load
- Servicing cracked fittings or a leaking pump diaphragm
Technical Specifications
- Part Type: Vacuum Fuel Pump
- Fuel System: Carbureted small engine
- Operation: Engine pulse/vacuum
- Application: Lawn tractor/zero-turn mower
- Replacement Type: Aftermarket
Installation & Fitment
- Photograph the three hose locations
- Replace cracked fuel and pulse hose
- Check the fuel filter and cap vent
- Confirm flow direction before connecting the carburetor
- Test under mowing load 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.
John Deere used multiple engines within these mower families. Match the original pump, engine model, port direction, and mounting holes.
Frequently Asked Questions
Q: How can I tell the pump is not moving fuel? A: Disconnect testing should be performed safely; a service manual procedure can confirm whether pulsed fuel flow reaches the carburetor.
Q: Can a bad pulse hose stop the pump? A: Yes. A split, loose, or blocked pulse hose prevents the diaphragm from operating.
Q: Does this fit all Z425 mowers? A: Verify the installed engine and original pump because production configurations vary.
Q: Is it OEM John Deere? A: No. It is an aftermarket replacement.
Part Summary
keywords: John Deere L120 fuel pump, LA145 vacuum fuel pump, Z425 pulse pump, John Deere mower starts then dies, M138498 pump replacement, lawn tractor fuel starvation
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.