Tecumseh 640252 Carburetor Fuel Pump Diaphragm

The Tecumseh 640252 is a genuine OEM carburetor fuel pump diaphragm designed for use in Tecumseh small engines. This critical carburetor component works in conjunction with crankcase pulsations to pump fuel from the tank to the carburetor, ensuring proper fuel delivery for reliable engine operation.

Key Features:

• Genuine Tecumseh OEM part for guaranteed fit and performance
• Durable rubber-type diaphragm construction
• Compatible with multiple Tecumseh carburetor models including Series 2 and diaphragm-type carburetors
• Essential replacement part for maintaining proper fuel system function
• Helps restore fuel delivery on engines with starting or running issues

This pump diaphragm is a common replacement part found in many Tecumseh carburetor rebuild kits and is used across various small engine applications including lawn mowers, tillers, generators, and other outdoor power equipment. Over time, diaphragms can become stiff, cracked, or damaged, leading to fuel delivery problems and engine performance issues. Regular replacement of worn diaphragms helps maintain optimal engine operation and prevents fuel system failures.

OEM Part Number: 640252, also referenced as TIL237-163