594601 Carburetor Replacement

Key Features

• Engineered for Intek single-cylinder OHV engines rated at 19HP to 21HP.
• Precision-machined components to restore fuel delivery and air-to-fuel ratio.
• Direct-fit replacement to ensure consistent starting and smooth idling.
• Constructed with durable materials to resist fuel degradation.

Replaces / Cross-Reference Part Numbers

• 796587
• 591736
• 594601
• 796250
• 795486
• 794136
• 796109
• 591731

Compatibility & Fitment

• Designed for Briggs & Stratton Intek single-cylinder overhead valve (OHV) engines.
• Compatible with engine power ranges: 19HP, 19.5HP, 20HP, 20.5HP, and 21HP.
• Suitable for Craftsman riding lawn mowers and lawn tractors utilizing the specified engine series.
• Always verify engine model number (e.g., 31A507 series) against the specific requirements of your equipment before purchase.

When to Replace

• Engine fails to start or experiences frequent stalling.
• Noticeable fuel leakage around the carburetor assembly.
• Rough engine performance, surging, or inability to maintain consistent speed under load.
• Internal clogging or corrosion caused by degraded gasoline or long-term storage without fuel stabilization.

Installation Tips

• Ensure the engine is cool and the spark plug wire is disconnected before starting the repair.
• Take note of the routing of fuel lines and linkage springs during removal to ensure proper reinstallation.
• Clean the intake mounting surface thoroughly to ensure a perfect seal with the new mounting gasket.
• Verify that the throttle and choke linkages operate freely through their full range of motion after installation.
• Drain and refresh old fuel from the tank to prevent immediate contamination of the new carburetor.