Butom 591137 Carburetor for Troy-Bilt & Briggs & Stratton 190cc Engines

Refresh your pressure washer with the Butom 591137 Carburetor

This replacement carburetor is designed to breathe new life into Briggs & Stratton 190cc engines used in popular pressure washers and lawn equipment. It serves as a direct alternative to several OEM numbers, offering a robust build and reliable airflow for everyday tasks. With compatibility that spans 7.75hp to 8.5hp engines and common 2700–3000 PSI machines, this part is positioned to fit a variety of service scenarios without requiring custom fabrication.

Key compatibility includes engines rated at 7.75hp, 8.75hp, and 8.5hp, and pressure washers in the 2700–3000 PSI range. The unit supports a wide array of models from Troy-Bilt XP series to Toro Timemaster, making it a versatile option for repairs and routine maintenance. This carburetor is intended as a practical replacement for several OEM numbers and is built to harmonize with existing fuel delivery and ignition timing in many Briggs & Stratton 190cc family engines.

What you get and what to expect

• Direct OEM replacements: 591137, 590948, 593599, 595390, 594287, 799248, 799154 (and other variants noted in product specs).
• Package includes: 1 carburetor, 3 gaskets, 1 O-ring for installation readiness.
• Built to endure heat, corrosion, and wear with brass components, a zinc-plated float bowl, a high-density plastic float, and an anodized aluminum body.
• Wet flow tested to mimic real-world engine performance, supporting consistent fuel delivery and throttle response over time.

Durable design for real-world use

• All-metal and high-grade parts resist the rigors of outdoor work and repeated startup cycles.
• Brass components and a corrosion-resistant float bowl contribute to long-term reliability in demanding conditions.
• Anodized aluminum body provides a lightweight yet sturdy shell for everyday maintenance and reuse.

Key installation specs at a glance

• Throttle side mounting hole distance: 46 mm (center to center).
• Choke side mounting hole distance: 35 mm (center to center).
• Throttle diameter: 18 mm; Choke diameter: 25 mm.
• Venturi diameter: 11.7 mm; Fuel inlet line: 7 mm.

Whether you’re refreshing a neglected unit or completing a repair, the Butom 591137 carburetor offers a practical path to renewed performance without guaranteeing outcomes. Actual results depend on your engine’s condition and maintenance routine, so consider this as a feasible improvement option rather than a promise.