Craftsman 794-00082 Spark Plug — OEM MTD Replacement for Many Models

Overview

The Craftsman 794-00082 spark plug is an OEM MTD part designed to keep your lawn and garden engines firing reliably. This replacement plugs into a wide range of machines, delivering clean ignition and smooth operation when it’s time to refresh worn components. Built to match the original equipment standards, it offers a practical option for maintenance that fits into busy, DIY-upkeep schedules.

Why choose the Craftsman 794-00082 spark plug

Choosing an OEM-grade spark plug can help your equipment start more consistently and run with steadier idle. The 794-00082 part is listed as an OEM MTD product and is designed to replace several prior numbers, making it a convenient one-for-many replacement option when you’re keeping a fleet of tools in good shape.

• OEM MTD product with multiple cross-reference numbers (including 794-00043, 794-00042, 791-180852B, 791-180852) for quick replacement decisions.
• Broad compatibility across multiple models and series, including TBP, YM, MP, and related lines, reducing the need to chase a perfect fit.
• Durable construction designed to sustain regular use in outdoor equipment and resist the wear that comes from frequent infrequent maintenance.

Detailed compatibility and real-world use

This spark plug is suitable for a broad set of engines listed in its compatibility notes. For DIY users, having an OEM part on hand helps you avoid last-minute substitutions that might not align with your equipment’s design. In practice, users may notice easier starts and steadier engine performance when replacing worn plugs in compatible machines, especially after a season of heavy use or storage.

• Fits a wide array of models: TBP3160, TBP6160, YM45SC, YM45BP, YM4570, YM4520, YM4125CS, YM2BV, YM2BP, YM26SS, YM26CS, YM26CO, YM260CO, YM21SS, YM141, Y4800EC, Y4700EC, Y26SS, Y26CS, Y26CO, and more.
• Also fits additional families: TB575EC, TB539ES, TB539E, TB525ET, TB525ES, TB525EC, TB516EC, TB515EC, TB514ES, TB514CS, TB4SC, TB4HBEC, TB4BVEC, TB4BPEC, TB4BP, TB490BC, TB475SS, TB425XP, TB425CS, MP425, Horse TB525CS, and various C, BCR, and red-series machines.

How to install and get the most from this plug

Ready-to-use out of the packaging, this spark plug pairs with standard replacement workflows for many engines. Consider these practical tips to optimize results without assuming guarantees:

• Verify compatibility in the owner’s manual before replacing the part.
• Allow the engine to cool, then remove the old plug carefully with the appropriate socket.
• Inspect the boot and ignition leads for wear and replace if needed.
• Install with the correct torque and seating so the electrode forms a proper seal.
• Store replacement plugs in their packaging until you’re ready to install to protect the terminal end.

Bottom line

The Craftsman 794-00082 spark plug offers a practical, OEM-backed option for many MTD-based machines. While experiences vary with engine condition and operating environment, this part is designed to support reliable starts, steady combustion, and straightforward maintenance for compatible equipment.