Description
Fuel Pump Rebuild Kit for Suzuki King Quad ATV
The iFJF 15100-19B01 fuel pump rebuild kit restores factory fuel delivery to your Suzuki King Quad LT4WD, Quad Runner LT-250, and LT-250F ATVs. This kit replaces the worn diaphragm, check valves, and gaskets inside the mechanical vacuum-operated fuel pump — eliminating hard starting, fuel starvation, and engine stalling issues common on aging Suzuki ATV fuel systems. Direct replacement for OEM part numbers 15100-19B01, 15100-19B00.
Key Features
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Complete Rebuild Kit: Includes fuel pump diaphragm, check valves, gaskets, and all necessary sealing components for a full pump overhaul.
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Vacuum Pulse Compatible: Designed for the vacuum-operated mechanical fuel pump system used on Suzuki King Quad and Quad Runner ATVs.
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Ethanol-Resistant Materials: Upgraded diaphragm material resists the drying, cracking, and hardening caused by ethanol-blended pump gasoline.
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Direct OEM Replacement: Precision-manufactured to match Suzuki factory specifications for pulse pump dimensions and flow rates.
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Restores Reliability: Fixes common symptoms: hard starting after sitting, engine dying under load, fuel starvation at high RPM.
Compatibility
| Vehicle |
Year Range |
Engine |
Notes |
| Suzuki King Quad LT4WD |
1991-2002 |
250cc 4-stroke |
All sub-models (LT-4WD, LT-F4WD) |
| Suzuki Quad Runner LT-250 |
1988-1999 |
250cc 4-stroke |
LT-250F, LT-250EF |
| Suzuki LT-250F |
Various |
250cc 4-stroke |
Verify pump style on early models |
Cross-Reference / Interchange
| Brand |
Part Number |
| Suzuki OEM |
15100-19B01, 15100-19B00 |
Signs Your ATV Fuel Pump Needs Rebuilding
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Hard starting after sitting: Fuel drains back to the tank — excessive cranking required to prime the carburetor.
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Engine dies under load: Fuel pump can't maintain adequate volume when climbing hills or at wide-open throttle.
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Surging at speed: Intermittent fuel delivery causes RPM fluctuations.
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Fuel smell from vacuum line: Perforated diaphragm allows fuel into the engine vacuum circuit.
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Visible diaphragm damage: Upon disassembly, the rubber diaphragm is stiff, cracked, or has pinholes.
Frequently Asked Questions
Q: Does this fit all Suzuki King Quad models?
A: This kit fits the 250cc King Quad LT4WD and Quad Runner LT-250 models with the vacuum-operated pulse fuel pump. Not compatible with the King Quad 300, 400, 500, 700, or 750 models which use different fuel delivery systems.
Q: How do I know if the fuel pump is my problem?
A: A quick test: disconnect the fuel line at the carburetor, place it in a container, and crank the engine. Fuel should pulse out steadily. If flow is weak, intermittent, or absent, the pump diaphragm is likely the culprit. Also check the vacuum line for fuel — if fuel is present in the pulse line, the diaphragm is definitely perforated.
Q: Can I rebuild it on the ATV?
A: The pump is typically mounted on the frame or engine with 2-3 bolts. Remove it for easier access. Rebuilding on a bench allows proper cleaning of mating surfaces and inspection of the pulse port for obstructions.
Q: How long will the rebuilt pump last?
A: With ethanol-free fuel, 5-8+ years. With E10 pump gas, 3-5 years. For longest life, drain the carburetor and run the engine dry before winter storage to prevent fuel varnish buildup in the pump.
Q: What if the rebuild doesn't fix my fuel delivery issue?
A: Check the vacuum pulse line for cracks or blockages, verify the fuel tank vent is clear (a blocked vent creates vacuum lock), and inspect fuel lines for kinks or internal collapse. If the pulse port on the engine is clogged with carbon, clean it out.
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