Engine Serial Number (Tier 2/Stage II)

H99413
H99413-UN-14DEC10

S660 and S670

H99437
H99437-UN-14DEC10

S680 and S690

S660 and S670: located on rear side of engine.

S680 and S690: located on front side of engine above starter.

OUO6075,000105C-19-20120227