Put a spin on and you can carry a spare just incase. Here's a good one it's out of stock so take the number to a NAPA store annd if the don't have one in stock it will come over night. Fuel Water Separator Kit for Mercruiser, Suzuki Outboard, Johnson, Evinrude, McCulloch, Scott Atwater, Volvo Penta, OMC Sterndrive Cobra, Yamaha Outboard, GLM 24950, Tempo 170101 - Sierra 18-7852-1 - iboats