6-76
Service Replacement Part and Filter Recommendations
Engine 7.2L 8.1L
RPO LG5 L18
Spark Plug
Denso Type TJ14R
-P15
Gap 0.060 inch (1.52 mm)
Torque 14.75 lb. ft. (20.0 Nm)
Oil Filter
CAT
R
1R0739
ACDelco
R
PF-454
Air Cleaner Donaldson P522606
ACDelco
R
A1518C
Fuel Filter
ACDelco
R
915 Primary** ACDelco
R
GF626*
Secondary Fuel Filter
CAT
R
1R0751
Pressure Caps
RC
-54
GM Part No. 15997145
*Optional Davco (K28) D350921 spin
-on type filter located in component box.
**Optional Cold Weather (KUK) Racor B6484GM spin-on type located in component box. Optional Davco heated
fuel water separator mounted on the side of the diesel engine.
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