Engine Block Codes; Identification - Mercury MerCruiser Service Manual

Engine Disassembly
Lubricants, Sealants, Adhesives
Tube Ref No.
SAE Engine Oil 30W
80
Special Tools
Piston Ring Expander

Engine Block Codes

Identification

The engine can be determined by using the block code. This code contains a component code, family code, and year and time
code.
Page 3A-2
Description
Expands piston rings for removal and installation.
6255
Block code stamped on starter mounting boss
© 2016 Mercury Marine
Where Used
Cylinder bores and other machined surfaces
91‑24697
57249
90-8M0099748 eng DECEMBER 2015
Part No.
Obtain Locally