Wetenex 951-12220 Ignition Coil for MTD/Troy-Bilt/Cub Cadet 4P90 Engine Series | 751-12220 Compatible Replacement

Premium replacement ignition coil for lawn tractors and riding mowers

The Wetenex 951-12220 ignition coil is designed as a direct replacement for OEM parts 751-12220 and 951-12220. It’s built to slot into familiar fitments on a range of Troy-Bilt, Cub Cadet, and MTD machines, helping you maintain reliable starts and steady engine response during routine mowing.

Engineered to support a variety of 4P90 family engines and related LT-series coils, this part aims to deliver consistent spark delivery across compatible models. While performance can vary with maintenance, weather, and fuel quality, many users appreciate it as a practical swap that mirrors original charging behavior and timing.

Key compatibility and fitment highlights

• Direct replacements for OEM numbers 751-12220 and 951-12220, ensuring familiar mounting and wiring layouts.
• Fits Troy-Bilt Cub Cadet 420cc engines across multiple 4P90 variants (4P90HU, 4P90HUA, 4P90HUB, 4P90HUC, 4P90HUD, 4P90JHA, 4P90JT, 4P90JU, 4P90JUA, 4P90JUB, 4P90JUC, 4P90JUD, 4P90JUE, 4P90JUF, 4P90M0, 4P90MU, 4P90MUA, 4P90MUB, 4P90MUC, 4P90MUD).
• Also compatible with 452cc Cub Cadet engines such as 8P92ZU and 8P92ZUA in the 4P90HU family.
• Fits 951-12220 applications for 30" rear-engine riding mowers TB30R (models 13A226JD066 and 13B226JD066).
• LT4200 and LT1500 coil applications expand compatibility to Yard Machines, Craftsman, and related lawn tractors.

• LT4200 compatibility spans Craftsman T1000, T1200, R1000, and LT1500 series riding mowers.
• LT1500 coil supports the 4P90HU, 4P90JHA, 4P90JT, 4P90JU, 4P90JUA, and related engines.

What you get and installation ideas

• Package includes 1 x 4P90HU Ignition Coil, ready for swap into compatible units.
• Designed as a straightforward direct-fit replacement to minimize downtime and maintain original wiring compatibility.
• Check your engine model and OEM part numbers to confirm a proper match before installation.

Using a compatible ignition coil can help preserve consistent ignition timing and spark delivery, especially after a coil wear event. This can support smooth starting and regular operation, letting you focus on mowing rather than engine problems. If you’re replacing an old coil, pairing it with fresh spark plugs and a clean fuel system can contribute to overall mower reliability.