937-05066 XT1 Air Filter Maintenance Kit for Cub Cade-t XT1-LT42 XT1-LT46 MTD 737-05066 547CC OHV PowerMore 4X90HU 8X90KU Craftsman T1300 Troy Bit TB42 TB46 Mower Parts

What It Is

This is a complete air filter maintenance kit for Cub Cadet XT1 series lawn tractors (LT42, LT46) and compatible MTD-based mowers with 547cc OHV engines. It includes both the primary foam pre-filter and the paper main filter, plus a spark plug—everything needed for a single air filter service.

Fitment & Compatibility

Before buying, verify three things:

• Engine type: Fits 547cc OHV engines found on Cub Cadet XT1-LT42, XT1-LT46, Craftsman T1300, Troy-Bilt TB42, TB46, and PowerMore 4X90HU/8X90KU. Not for smaller or larger engine displacements.
• Deck size: Works with 42” and 46” cutting decks on the listed models. Does not apply to 50”+ decks.
• OEM cross-reference: Replaces Cub Cadet/MTD part 737-05066. If your original filter has a different number (e.g., 737-05067), this kit won’t fit.

Check your current filter housing shape—the rectangular paper filter must match dimensions roughly 5.5” x 3.5” x 1.5”. Measure if unsure.

Key Things to Know

• Quality is adequate for seasonal use – The paper filter is comparable to OEM, but the foam pre-filter feels slightly thinner. Fine for a homeowner mowing 1–2 acres.
• Spark plug is a basic copper plug – It works, but if you want longer life, buy a separate iridium plug. The included plug is fine for one season.
• Installation is straightforward – Remove the filter cover, swap both filters (foam goes on top of paper), and replace the plug. No tools needed for the filters; a socket is required for the plug.
• Common gotcha: The foam pre-filter must be oiled lightly (use foam filter oil, not engine oil) before installation. The kit does not include oil.

Should You Buy It

If you own a Cub Cadet XT1 or compatible MTD-based mower with a 547cc engine and need a quick, all-in-one air filter service kit, this is a solid budget-friendly choice. It’s not premium-grade, but for routine maintenance on a mid-size lawn tractor, it gets the job done without hassle. Skip it if you want a longer-lasting spark plug or a sturdier pre-filter.