Section: D-43 USED 18419-C Shaved .130 Mercury Outboard Motor Cylinder Head ?135/150/175 V6 Manufacturer: Mercury / Quicksilver Part Number: 18419-C / 18419C Shaved appr. 0.130 Condition: Used I believe it fits: ? older Mercury 135/150/175hp V6 (not all years or models so please verify fitment using your model or serial number)