Autoparts Fuel Pump Module & Inline Filter for Kohler ECH/ECV Engines — 593890 Drop-In Replacement, OE Fit

Autoparts 593890 fuel pump module with filter is a drop-in replacement designed to restore reliable fuel delivery for Kohler ECH and ECV small engines.

If your mower or garden tractor is experiencing hard starts, sputtering under load, or inconsistent engine speed, a worn fuel pump or clogged filter could be the cause. This Autoparts 593890 assembly replaces OEM part numbers including 25 393 16-S, 2539316-S, 2539314-S, 2539311-S and related SKUs, and fits a range of Kohler ECH630–ECH740 and ECV630–ECV740 engines. The kit ships with the pump module plus a dedicated inline filter and is built to match the original fit and function so installation is straightforward for anyone comfortable with basic small-engine maintenance.

Will this unit fit my Kohler engine model?

The 593890 pump module is compatible with many Kohler ECH and ECV series small engines. To confirm fitment, compare your existing part number and physical connector layout against the pictures and specifications supplied.

• Fits Kohler ECH630, ECH650, ECH680, ECH730, ECH740
• Also fits ECV630, ECV650, ECV680, ECV730, ECV740
• Replaces OEM numbers 25 393 16-S, 2539316-S, 2539314-S, 2539311-S, 2539310S, 2539309S
• Verify connector, mounting flange, and hose sizes before ordering

How difficult is installation and what tools are needed?

Installation is intended to be user-friendly and typically requires only basic hand tools. You’ll remove the old module, transfer or discard any reusable seals, install the new pump and filter, then reconnect fuel lines and electrical connector.

• Basic tools: screwdriver, pliers, socket set
• Allow time for fuel line depressurization and cleanup
• Follow engine service manual torque and safety steps
• Replacement usually takes 30–60 minutes for experienced users

What performance or durability can I expect?

This Autoparts module is manufactured to meet or closely match original equipment standards for material and flow characteristics. It aims to provide steady fuel pressure and filtration comparable to the original component, helping reduce stalling, hesitation, and poor idling caused by failing fuel delivery parts.

• Includes both pump module and inline fuel filter
• Constructed from durable materials for routine lawn and garden use
• Designed for consistent fuel flow under normal operating conditions
• Not a performance upgrade—engine tuning remains unchanged

Who is this for: This replacement fuel pump module and filter kit suits homeowners, landscapers, and small-engine technicians who need an affordable, OE-compatible fuel delivery component for Kohler ECH and ECV engines. It’s best for users who can safely work on fuel systems and who have verified part compatibility with their engine. If you need a direct-fit replacement to restore reliable starting and running behavior without altering engine performance, this kit is a practical choice.