Intake Manifold Flap Sensor SIERRA 118-4457

Compatible Engines

Ensure your outboard motor operates reliably by choosing the original intake manifold flap sensor from SIERRA. This critical component of the intake system, identified by catalog number 118-4457, plays a fundamental role in optimizing gas flow and improving engine performance parameters. Thanks to its precise manufacturing, the product guarantees a perfect fit and long-term sealing, which directly translates to stable RPMs and combustion efficiency.

Since specific engine model compatibility lists are not available in the technical data, compatibility must be strictly verified using the manufacturer's catalog number (118-4457) or the original OE number. If you have any doubts about selecting the correct part for your vessel, we strongly recommend contacting our customer support. Our experts are happy to help you choose the right component so you can enjoy safe boating without worrying about breakdowns.

Installation and Maintenance

Replacing the manifold flap is an operation that requires precision, but with proper preparation, it is achievable even for experienced sailors. Before starting work, ensure the engine is turned off and cooled down. Pay special attention to the condition of the seals and the cleanliness of the mounting surfaces – contaminants can lead to leaks and power loss. After installing the new SIERRA part, we recommend a short idle test to ensure the flap moves smoothly and there are no leaks. Regular inspection of this component is the best investment in the longevity of your engine.

• Original SIERRA quality – guarantee of durability and precision.
• Improved performance – optimization of air and exhaust gas flow.
• Easy installation – standard dimensions facilitating replacement in the service.
• Unique identifier – number 118-4457 facilitates quick part identification.