Subaru 226-42501-13 Governor Spring OEM Replacement Small Engine Part

The Subaru 226-42501-13 is a genuine OEM governor spring designed for Subaru Robin small gasoline engines. The governor spring is a critical component of the engine's mechanical governor system, working in conjunction with the governor arm and throttle linkage to regulate and maintain consistent engine speed under varying load conditions.

As a factory-original part, this spring is manufactured to precise tension and dimensional specifications to ensure proper governor response and stable RPM control. Using the correct OEM spring is essential — an incorrect spring tension can cause engine surging, under-speed, or over-speed conditions.

Key Features:

• Genuine OEM Subaru Robin replacement part
• Engineered to factory tension specifications for accurate governor response
• Maintains consistent engine speed under variable load
• Works within the mechanical governor assembly alongside the governor arm and throttle linkage
• Direct OEM replacement — no modification required
• Also sold under the Subaru Robin brand (formerly Robin/Subaru)

This governor spring is also cross-referenced with related Subaru Robin part numbers in the 226-42501 family, including 226-42501-01 and 226-42501-11. Always verify compatibility using your engine's model, spec/type, and serial numbers before ordering.