HZ Ignition Coil for Tecumseh 34443 Series — Direct-Fit 34443C Solid-State Replacement, Fits 3–7hp Mowers & Snowblowers

HZ 34443C ignition coil is a direct-fit solid-state replacement for Tecumseh 34443 series modules, restoring spark to compatible small engines used on lawn mowers, snowblowers and outdoor power equipment.

If your mower or snowblower with a Tecumseh engine is misfiring, hard to start, or not starting at all, a faulty ignition coil is a common culprit. This HZ module replaces Tecumseh part numbers 34443, 34443A, 34443B, 34443C and 34443D and fits a wide range of engine models (LEV, LV, HSK, OVRM, TH, VSK, HXL and many more) as well as equipment brands such as Toro, Yard-Man, Craftsman, Lawn-Boy, MTD and Snapper. The unit is a solid-state coil designed to match the original mounting, plug gap and lead configuration so installation is straightforward for most DIYers and service technicians.

How will this ignition coil improve engine starting?

Replacing a worn or damaged coil restores reliable, consistent spark timing so the engine can ignite the fuel-air mixture properly. That means fewer pulls or starter turns, more dependable ignition under load, and smoother running during normal use.

• Direct-fit swap for Tecumseh 34443 series modules
• Solid-state design for consistent spark output
• Compatible with 3–7+ hp Tecumseh small engines
• Pre-configured leads and mounting points to match OEM

Which engines and machines does this module fit?

This HZ coil covers a broad selection of Tecumseh engine codes and many OEM models. It's intended as a replacement for dozens of lawn mower and snowblower part numbers and is commonly used on Toro Recycler series, Craftsman/Eager-1 and Lawn-Boy Silver machines, as well as older MTD and Snapper units.

• Replaces Tecumseh 34443, 34443A, B, C, D
• Fits LEV, LV, HSK, OVRM, TH, VSK, HXL families (multiple submodels)
• Works with Toro, Yard-Man, Craftsman, Lawn-Boy, MTD, Snapper
• Common application: mower and 3.5–7hp small engine snowblowers

What should I check before replacing the ignition coil?

Diagnosing ignition problems first saves time: inspect the spark plug, kill switch wiring, flywheel key and grounding. If those are good but there’s still no spark or a weak intermittent spark, replacing the coil is the next logical step.

• Verify clean, correctly gapped spark plug
• Confirm kill switch and wiring are not shorting to ground
• Inspect flywheel and key for damage that affects timing
• Test for spark with a proper boot tester before and after swap

How difficult is installation and what tools are needed?

Installation is typically moderate in difficulty and can be completed with basic hand tools. The HZ coil matches OEM mounting and lead orientation, so removal of the engine cover and a few bolts is usually all that’s required.

• Common tools: socket set, screwdrivers, feeler gauge for gap
• Replacement involves removing shroud, unplugging leads, and mounting new coil
• Set and verify the spark gap per engine service spec after mounting
• Refer to service manual for ignition timing or pickup distance if needed

Who this is for: HZ’s 34443C ignition coil is aimed at DIY home mechanics, lawn-care professionals and small engine repair shops who need a reliable, cost-effective replacement for Tecumseh 34443-series modules. It’s especially useful for owners of older mowers and snowblowers that use Tecumseh LEV, LV, HSK and related engines and who want a straightforward, direct-fit part to restore dependable starting and running performance. If you maintain Toro Recycler mowers, Lawn-Boy or Craftsman machines with compatible Tecumseh engines, this coil gives you an accessible replacement option without needing to source original OEM stock.