6.8L GAS ENGINE ................................................................................................................................................... 2
CYLINDER HEAD .....................................................................................................................................................6
PISTON, ROD AND CRANK ..................................................................................................................................10
OIL PAN .................................................................................................................................................................. 18
WATER PUMP ........................................................................................................................................................ 22
IGNITION SYSTEM ................................................................................................................................................26
NOTE
The information in this manual is known to be accurate as of the date of release shown on the
cover. However, engineering changes can occur without notice. To obtain the proper parts,
please be sure to use the serial number of the unit being serviced when ordering from this
manual.
All other parts not shown in this manual can be found in the Owner's Manual for the
unit being serviced. Owner's Manuals can be found at:
www.generac.com
Legend
“A/R” AS REQUIRED
“STD” STANDARD SIZE
“O.S.” OVERSIZE
“U.S.” UNDERSIZE
“NA” NOT AVAILABLE
6.8L Gas Engine Quick Reference Guide
ENGINE
SIZE:
6.8 Liter
FUEL:
LP/NG
MAKE:
Ford
ENGINE P/N:0H0923
QUICK REFERENCE ENGINE PARTS
DescriptionPart NumberSpecial Notes
Scheduled Maintenance Kit0G15870ESVOil Filter, Spark Plugs, Air Filter
Oil Filter0D5419Oil capacity – see owner's manual
Air Cleaner Element0F5419
V-BeltSee owner's manual
Thermostat0F2844Coolant capacity – see owner's manual
Thermostat O-ring0F2843
Starter Motor0D5418
Spark Plug0D34540186Spark plug gap – see owner's manual
ENGINE IDENTIFICATION
Note: The right and left banks of engine are determined by viewing the engine from the flywheel side.
SECONDARY ENGINE
PART NUMBER
Left Side Valve Cover
ENGINE ASSEMBLY
BUILD DATE
ENGINE SERIAL NUMBER
1
6.8L Gas Engine
Note: The right and left banks of engine are determined by viewing the engine from the flywheel side.
2
6.8L Gas Engine
ITEMPART NO.DESCRIPTIONQTY
60060H09230158LONG BLOCKA/R
60090H09230114SHORT BLOCKA/R
Note: The right and left banks of engine are determined by viewing the engine from the flywheel side.
3
6.8L Gas Engine Cylinder Block
Note: The right and left banks of engine are determined by viewing the engine from the flywheel side.