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SKU:
NLT1G00722
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Kawasaki STX-12F STX-15F Fuel Filter 49019-3721
$28.99
In Stock
$28.99
Sale price
$28.99
Regular price
This new aftermarket inline EFI fuel filter replaces Kawasaki 49019-3721 for compatible STX-12F and STX-15F four-stroke personal watercraft.
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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
- Kawasaki STX-12F / JT1200 four-stroke applications, approximately 2003-2007
- Kawasaki STX-15F / JT1500 four-stroke applications, approximately 2004-2012
- Later or special-edition models only when the installed filter is 49019-3721
Product Overview
A ski that starts hard, falls flat at higher throttle, or has been stored with stale or water-contaminated fuel may need a filter after fuel pressure and tank condition are checked. A weak pump, clogged pump strainer, injector fault, or restricted vent can feel the same.
The filter removes debris from the pressurized fuel supply before it reaches the injectors. It must be installed in the correct flow direction and is not a cure for contaminated fuel left in the tank.
Confirm 49019-3721, hose fittings, flow arrow, model code, year, and fuel-system layout. Depressurize the EFI system and use marine-approved service practices.
Key Features & Performance
- Inline filter for the matching Kawasaki EFI system
- Metal canister suited to pressurized fuel delivery
- Helps protect injectors from tank and line debris
- Direct hose connection when the original dimensions match
Replaces Part Numbers
- 49019-3721
Common Uses
- Servicing a watercraft after stale-fuel storage
- Correcting a confirmed fuel-flow restriction
- Replacing an old filter during pump or injector work
Technical Specifications
- Product Type: Inline fuel filter
- Fuel System: Four-stroke electronic fuel injection
- Watercraft: Kawasaki STX-12F / STX-15F applications
- Condition: New aftermarket replacement
Installation & Fitment
- Work in a ventilated area away from sparks
- Disconnect the battery and relieve fuel pressure
- Clamp or drain lines using an approved method
- Install with the flow arrow toward the engine
- Cycle the pump and inspect every connection for leaks
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application that is not shown above. Model year, production date, serial number, engine or equipment specification, installed options, and previous repairs can change fitment. Match the original part, reference number, dimensions, connectors, mounting points, and product photos before purchase.
Frequently Asked Questions
Q: Can a clogged filter cause loss of power? A: Yes, especially under load, but fuel pressure, pump condition, injectors, ignition, and compression should also be tested.
Q: Can I reuse fuel that contains water? A: No. Contaminated fuel should be removed and the tank and supply system inspected.
Q: Does it fit all Kawasaki Jet Skis? A: No. It is for applications using 49019-3721.
Q: Is this an original-equipment part? A: No. This is a new aftermarket product. Brand names and part numbers are used only to identify compatible applications.
Part Summary
keywords: Kawasaki 49019-3721 fuel filter, STX-12F fuel starvation repair, STX-15F loses power under throttle, Kawasaki Jet Ski EFI filter, stale fuel watercraft service
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, specifications, and application before purchase.