HRuiRed LTX1040 Air Filter Pre-Filter Kit for Kohler Courage & SV Engines — Includes Main Filter + Spark Plug

The HRuiRed LTX1040 pre-filter kit is a direct-replacement air-cleaning set built to fit Kohler Courage engines and popular riding mowers, supplying a pre-filter, main air filter, and spark plug to restore airflow and protect the engine.

This replacement kit is engineered for owners of Kohler SV-series and Courage engines and several deck and lawn tractor models from Cub Cadet, Husqvarna and Toro. It bundles the pre-cleaner and primary element with an included spark plug so you can complete routine service in one visit. The parts replace multiple OEM numbers, making the kit a convenient universal option for many mid-to-high horsepower residential and light-commercial mowers.

What exactly fits with this LTX1040 kit?

The kit is compatible with a wide range of Kohler SV and Courage engines and common lawn tractor models. Check your engine or parts manual against the OEM cross-reference numbers before ordering to confirm fit.

• Compatible engines: Kohler SV470, SV471, SV480, SV530, SV540, SV541, SV590, SV591, SV600, SV601, SV610, SV620, SV470S, SV480S, SV530S, SV540S, SV590S, SV600S, SV610S.
• Tractors: Cub Cadet LTX1045, LTX1040 series, Husqvarna YTH21K46 and YTH20K46 models.
• Toro models: includes service fit for 13AX60RG744, 13AX60RH744, LX420, LX460 and Toro 74360/74370/74380/74363/74391 tractors.
• Replaces OEM numbers: 20 083 02-S, 20 083 06-S, 20 789 01-S, 20 883 06-S1, 20 883 02-S1 and pre-cleaner numbers 20 083 03-S, 20 083 04-S.

How does this kit improve engine protection and performance?

Using a fresh pre-filter plus a new main filter reduces dust ingestion and maintains designed airflow to the carburetor and engine. The included spark plug allows you to restore ignition reliability at the same service interval.

• Pre-filter traps large debris before it reaches the main element, extending element life.
• Main filter captures fine dust and particulates for cleaner intake air.
• New spark plug improves ignition consistency after air-system maintenance.
• OEM cross-replacements simplify procurement and reduce search time.

What’s in the box and how easy is it to install?

The kit arrives ready for routine maintenance with the three replacement parts you need to refresh the intake and ignition. Installation is a basic homeowner task for most riding mower owners and typically requires only a few hand tools.

• Contents: 1x main air filter, 1x pre-filter/pre-cleaner, 1x spark plug.
• Simple steps: remove engine cover, take out old filters, fit new pre-filter then main element, replace spark plug if needed, reassemble.
• No special tools or calibration required; follow engine manual torque specs for the spark plug.

Who is this for? The HRuiRed LTX1040 kit is for homeowners and small-property operators who service their own lawn tractors or who want an exact-fit aftermarket replacement for Kohler Courage and SV-series engines. It suits owners of Cub Cadet LTX1045, Husqvarna YTH21K46/YTH20K46 and compatible Toro tractors seeking a convenient, OEM-number-matching air service kit to restore performance and extend engine life. Always confirm your engine or model number against the compatibility list before purchase to ensure correct fitment.