Dodge RAM 1500 1998 Owner's Manual page 1455

9 - 232 ENGINE 5.9L DIESEL
ENGINE 5.9L DIESEL
DESCRIPTION
The cylinder block is constructed of cast iron. The
casting is a skirted design which incorporates longi-
tudal ribs for superior strength and noise reduction.
The block incorporates metric straight thread o-ring
fittings at lubrication oil access points. The engine
(Fig. 1) is manufactured with the cylinders being a
non-sleeved type cylinder. However, one approved
service method is to bore out the cylinders and add
cylinder sleeves to the cylinder block.
The cylinders are numbered front to rear (Fig. 2); 1
to 6. The firing order is 1–5–3–6–2–4.
Fig. 1 Cummins 24-Valve Turbo-Diesel Engine
Fig. 2 Cylinder Numbering
DR