LS3 Electronic Throttle Body Monovalve - Indmar ETC Assembly

Restore crisp throttle response and reliable idle control with this Indmar LS3 Electronic Throttle Body (ETC) Monovalve. Designed for drive-by-wire LS3 applications, this complete throttle body assembly features an integrated electronic actuator and a precision throttle plate to help deliver smooth airflow control from idle to wide-open throttle. Ideal for replacing a worn, sticking, or failed throttle body on Indmar/GM-based marine engine setups where consistent performance and dependable operation matter.

• Application: LS3 drive-by-wire (ETC) systems
• Type: Monovalve electronic throttle body assembly
• Includes: Throttle body housing with throttle plate and electronic actuator module
• Mounting: Flanged housing with multiple bolt holes for intake manifold/throttle inlet fitment
• Brand/Vendor: Indmar

Common symptoms this part can help address

• Erratic idle, hesitation, or reduced throttle response
• Drive-by-wire/throttle actuator related fault conditions
• Sticking throttle plate or worn throttle body assembly

Fitment notes

Fitment can vary by engine package and calibration. Please verify compatibility with your specific Indmar LS3 setup (and connector style) before ordering.