Powtol 799866 Carburetor for Brigg and Straton 190CC 675 Series Engine 790845 794304 799871 796707 Craftsman Troy Bilt 6.75 725EX TB230 Toro 20332 Lawn Mower

What It Is

This is an aftermarket carburetor assembly for Briggs & Stratton 190cc engines in the 675 Series, commonly used on Craftsman, Troy-Bilt, Toro, and other push mowers. It replaces OEM part numbers 790845, 794304, 799871, and 796707 to restore proper fuel delivery when the original carb clogs or fails.

Fitment & Compatibility

• Engine family: Briggs & Stratton 675 Series (190cc) – check your engine model number (e.g., 12A902, 12B902) on the valve cover or cooling shroud.
• OEM cross-references: 790845, 794304, 799871, 796707 – verify your existing carburetor part number.
• Machine brands: Fits Craftsman (e.g., 6.75, 725EX), Troy-Bilt (TB230), Toro (20332), and other mowers using the same B&S 675 engine.
• Before buying: Measure the mounting hole spacing (typically 2.125" center-to-center) and ensure the fuel inlet orientation matches your mower’s fuel line. Confirm your mower uses a side-draft carb (not overhead valve or vertical shaft models).

Key Things to Know

• Quality variance: Aftermarket carburetors can have debris or burrs in the jet – flush with carb cleaner and compressed air before installing.
• Installation difficulty: Moderate – you’ll need to remove the air filter, fuel line, and two bolts. Expect 20-40 minutes for a first-timer.
• Common gotcha: The gasket included may be thin; reuse your OEM gasket or add a thin layer of gas-resistant sealant if you get a vacuum leak.
• Tuning: Most 675 carbs are non-adjustable. If it runs rich or lean, check that the float height is set to spec (~1/8" from the bowl mating surface).

Should You Buy It

This is a solid budget fix if your mower won’t start or runs rough due to a clogged OEM carb. It’s not a perfect match for every 675 engine variant, so verify fitment first – but for $16 and a 4.6 rating, it’s a low-risk gamble that often works for Craftsman, Troy-Bilt, and Toro owners comfortable with basic wrenching.