Usage Tips:Part Number:87-814281A5,814281A5 fit for Mercruiser More Detail fitment information:Fits the Following for MerCruiser Engines 3.0L for ALPHA ONE - 3.0L for GM 181 I/L4 3.0L/LX for ALPHA ONE - 3.0LX for GM 181 I/L4 1996-1997 3.0L/LX for ALPHA ONE - 3.0L for GM 181 I/L4 1 1998 4.3L CARB for ALPHA/BRAVO - 4.3L CARB ALPHA/BRAVO 4.3L for ALPHA 4V - 4.3L (GEN +) (4BBL) Reman 4.3 LX/LXH for ALPHA AND BRAVO (GEN +) - 4.3LX (GEN +) (2 BBL.) for GM 262 V-6 1996-1997 4.3L for ALPHA/BRAVO (262 CID - GEN +) - 4.3LH (GEN +) (4 BBL.) for GM 262 V-6 1998 5.0L/5.7L for ALPHA/BRAVO GEN+ - 5.7L (2 BBL.) for GM 350 V-8 1998-2001 5.0L / 5.7L for STERNDRIVE - 5.7L CARB ALPHA/BRAVO 5.0L/5.7L for ALPHA/BRAVO GEN+ - 5.0L (2 BBL.) for GM 305 V-8 1998-2001 5.7L 2BBL 5.7LX 4BBL 350 MAG for ALPHA/BRAVO - 350 MAG. for ALPHA (4 BBL.) GM 350 V-8 1997 5.7L 2BBL 5.7LX 4BBL 350 MAG for ALPHA/BRAVO - 5.7L (2 BBL.) GM 350 V-8 1997 Colour:Black Material:ABS Package Contents: 1 x Shift Interrupter Micro-switch Assembly