Fuel Line Primer Bulb – Fits Yamaha 70-225HP Outboards (Replaces 6YK-24360-73-00, 6YK-24360-72-00) Cummins Faulty thermostats can get stuck

Faulty thermostats can get stuck open (engine runs too cool) or stuck closed (engine overheats)

For Mercury/Mariner Owners: Compatible with various 4-Stroke models from 75 HP to 225 HP starting from model year 2000 and newer

3/8" NPT threaded Thread Size 3/8" or 9

Loosen the alternator or tensioner pulley bolts to release tension on the old belt

Brand Part Number Mercury 91-818162 / 818162 Mercury 43577 Sierra 18-9870 Mallory 9-79821

Fuel Line Primer Bulb – Fits Yamaha 70-225HP Outboards (Replaces 6YK-24360-73-00, 6YK-24360-72-00) Cummins Faulty thermostats can get stuckProduct Details This Fuel Line Primer Bulb Fits Yamaha 75 225HP Outboards (Replaces 6YK 24360 73 00) ensures reliable fuel delivery for a wide range of Yamaha engines. It is designed for external fuel line installation on 4 Stroke models from 70HP to 250HP (2000Current) and various 2 Stroke 115 150HP, HPDI, and OX66 models, providing consistent fuel flow for easy starting and smooth operation. This assembly is a direct replacement for Yamaha part