Description
Section: D-LG-123
USED 858405-C1 Mercury Motor Cylinder Head Optimax Port
Manufacturer: Mercury / Quicksilver
Part Number: 858406-C1 / 858406C1 / 858406C-1
Condition: Used
Side: Port
I believe it fits: ? Mercury 2.5 Optimax, 135/150/175hp
(not every year or model so please verify fitment using your model or serial number)