Carburetor for troy bilt pressure washer7.75 Hp 8.75 Hp 8.5Hp 190CC, Replaces for Briggs and Stratton 2700 3100PSI 796608 591137 590948 594287 799248

What It Is

This is an aftermarket carburetor designed for Troy-Bilt pressure washers powered by 7.75 HP, 8.75 HP, or 8.5 HP (190cc) Briggs & Stratton engines. It replaces OEM part numbers 796608, 591137, 590948, 594287, and 799248.

Fitment & Compatibility

Before buying, verify these three things:

• Engine model: Your engine must be a Briggs & Stratton 190cc (7.75–8.75 HP). Look for a model number on the engine shroud (e.g., 12A902, 12C902).
• OEM replacement numbers: Cross-check your current carburetor’s part number against the list above. This carb fits models like 2700 PSI and 3100 PSI Troy-Bilt units.
• Physical dimensions: Measure the mounting bolt spacing (typically 2.5 inches center-to-center) and the fuel inlet tube diameter (usually 5/16"). The carb body should match the intake manifold gasket shape.

Note: This is an aftermarket part, not OEM. It may require minor adjustments to the idle mixture screw or throttle linkage alignment.

Key Things to Know

• Quality variance: At $14.99, expect a basic cast-metal carburetor. Some units may have burrs on gasket surfaces or slightly tight float needles. Inspect and clean before installation.
• Installation difficulty: Moderate. You’ll need to drain the fuel, remove the air filter and fuel line, unbolt the old carb, and swap the gasket. Plan 30–60 minutes.
• Common gotchas:
  • The included gasket may be thin; use a thin layer of gasket sealant if it doesn’t compress evenly.
  • The idle mixture screw is often pre-set too lean. After installing, turn it out 1.5–2 turns from fully seated for a starting baseline.
  • If the engine surges at idle, check for debris in the main jet (common with new aftermarket carbs).

Should You Buy It

Buy this if your Troy-Bilt pressure washer’s original carburetor is clogged, leaking, or non-rebuildable, and you want a budget-friendly replacement. It’s a solid fix for a machine that’s not worth a $50+ OEM part. Skip it if you need a perfect drop-in with zero adjustment—go OEM for that.