Iggniopt 725EX Carburetor for 6.75 HP (190cc) Mowers — Direct Replacement with Mounting Hardware

The Iggniopt 725EX carburetor is a direct-replacement carb designed to restore reliable starting, smooth idling, and consistent throttle response for many 6.75 HP (190cc) lawn mower engines.

Whether you're rebuilding a Craftsman, Toro or other small-engine mower, this aftermarket carburetor fits a wide range of 122000-series and related engine models. Built from durable materials, it’s made to match the original equipment geometry so fuel flow and choke operation work as expected. The unit ships with the parts shown in the listing so you can reinstall quickly and get back to mowing without sourcing separate gaskets or brackets.

Which engines and mower models will this carburetor fit?

This 725EX-style carburetor is compatible with many 122000-series and related Briggs & Stratton-pattern engines used across popular consumer mowers. It lists direct fitment for multiple model codes and several Toro part numbers commonly found on 22-inch and similar deck mowers.

• Fits many 122000-model engines including 122K00, 122T00, 122000 and related variants.
• Compatible with engine codes like 126K00, 126M02, 126T05 and 128M05 among others.
• Works with Toro mower models such as 20066–20095 series and 20330 22" recycler decks.

How does installation work and what comes in the package?

Installation follows standard carburetor replacement steps: drain fuel, remove air cleaner, disconnect throttle/choke linkages and replace the old carb with the new unit. The carb arrives with the components pictured in the product images so you won’t need to hunt down small parts.

• Ships complete with mounting flange, linkages and necessary small hardware shown in images.
• No special tools beyond basic hand tools and pliers; a new gasket is recommended if not included.
• Quick swap for most hobbyists with basic mechanical experience; consult your mower manual for torque specs.

What performance or quality differences should I expect?

Made from corrosion-resistant metals and precision-cast components, this aftermarket carburetor aims to deliver steady fuel metering and improved longevity versus a worn OEM unit. Expect crisper throttle response and steadier idle after proper tuning and adjustment.

• Manufactured to match original dimensions for correct fuel/air mixture delivery.
• Improves cold starts and reduces sputter from clogged or worn jets when adjusted properly.
• Durable finish and components resist fuel-related corrosion for longer service life.

Who is this for: This carburetor is intended for homeowners, landscapers, and small-engine repair enthusiasts who own compatible 6.75 HP / 190cc mowers (Craftsman, Toro and other brands using the 122000-family engines). It’s suitable if your mower has hard starting, rough idle, flooding, or poor throttle response and you want a cost-effective direct replacement instead of a full engine swap. If you’re unsure about model compatibility, compare your old carburetor mounting pattern and throttle linkage arrangement to the photos or contact Iggniopt customer support before ordering.