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Description
593890 Fuel Module — Briggs & Stratton OEM Fuel Delivery Module
The Briggs & Stratton 593890 Module-Fuel is a genuine OEM replacement fuel module designed to support proper fuel delivery and regulation in compatible Briggs & Stratton small engines. Fuel modules are critical components in modern fuel systems, ensuring consistent fuel flow, reliable starting, smooth engine performance, and efficient operation under varying load conditions. This part is commonly used on select riding mower and outdoor power equipment engines equipped with advanced fuel management systems.
Product Details
Item Number: 593890
Brand: Briggs & Stratton
Part Type: Module-Fuel / Fuel Delivery Module
Design: OEM integrated fuel system module assembly
Condition: New Genuine OEM Replacement Part
Application: Supports fuel supply, regulation, and engine performance
System Type: Used on select EFI or advanced fuel-equipped engines
Typical Dimensions: Varies by engine model and module configuration
Function
This fuel module is engineered to:
Provide consistent fuel delivery to the engine under all operating conditions
Support reliable starting and smooth throttle response
Maintain proper fuel pressure and system performance
Replace faulty fuel modules causing hard starting, stalling, or fuel starvation
Ensure OEM-level compatibility with engine fuel management systems
Verify Fitment Before Ordering
Before purchasing, confirm:
Part number 593890 matches your engine model/type code parts diagram
Your engine fuel system uses this specific module configuration
Mounting points, connectors, and fuel line routing match the original module
⚠️ Fuel modules vary widely by engine family and fuel system design — always verify correct part number before ordering.
Compatibility
This OEM fuel module is commonly used on select Briggs & Stratton engines found in:
Riding lawn mower and garden tractor applications
Engines equipped with Electronic Fuel Injection (EFI) or advanced fuel systems
Commercial-grade outdoor power equipment requiring regulated fuel delivery
(Compatibility is representative — confirm exact fitment using Briggs & Stratton parts lookup.)
Installation / Usage
Disconnect battery and relieve fuel system pressure if applicable.
Shut off fuel supply and drain fuel safely as needed.
Locate the fuel module assembly on the engine.
Disconnect electrical connectors and fuel lines carefully.
Remove mounting hardware securing the old module.
Install the new 593890 fuel module in the same position.
Reconnect fuel lines and wiring securely.
Restore fuel supply, reconnect battery, and test engine operation.
Maintenance Tips
Use clean, fresh fuel to prevent contamination of fuel system components.
Replace fuel filters regularly to protect the fuel module.
Inspect fuel lines for cracks or leaks during service.
Replace module if engine experiences fuel starvation, stalling, or poor performance.
Notes / Equivalent Replacements
Genuine Briggs & Stratton OEM fuel module 593890 ensures proper fuel regulation, correct fitment, and factory performance compared to aftermarket modules that may not meet OEM fuel system specifications.



