Mishimoto 4in Straight Silicone Coupler - Black | (MMCP-4SBK)

The Mishimoto 4 Inch Straight Coupler is a black silicone hose coupler designed to connect compatible 4-inch hose sections in an automotive system. Its straight configuration provides a direct, inline connection where a coupler of this size and shape is required. Identified as a Mishimoto silicone hose kit component, it offers a simple solution for joining hoses while maintaining a clean, consistent appearance in the engine bay. The product title specifies a black finish, and the source description identifies the coupler as silicone. No additional details about reinforcement, pressure or temperature ratings, wall thickness, or included clamps are provided, so confirm those requirements for your application before installation.

This coupler is specified by its 4-inch size and straight design; no vehicle year, make, model, engine, or chassis fitment is listed. It is intended for applications that require a compatible 4-inch straight silicone hose connection, rather than a vehicle-specific bolt-on replacement. Check the hose dimensions and system requirements before purchase to verify compatibility. The available information does not identify a particular street, track, towing, or off-road use, nor does it state installation instructions or list additional kit contents. The variant SKU is MMCP-4SBK. Because fitment details are not provided, confirm that the coupler’s size, shape, and material suit the intended installation.