Sierra 18-5817 Raised Bracket Solenoid for MerCruiser, MercurySierra replacement starter solenoid for MerCruiser and Mercury engines. Sierra replacement parts are manufactured to meet or exceed OEM requirements. Fits Most MerCruiser and Mercury Marine Applications (Curved Bracket). Stepped mounting plate; Fits Outboard starters & MerCruiser starter & power trim; Interchangeable with: Arco; SW058; GLM; 72400; Mallory; 9-15112; 9-15112-10; MerCruiser Stern Drive; 89-846070; 89-94318; 89-96158; 89-96158T; Mercury Marine; 89-96158; 89-96158T; MES; 3387M;