A New Fuel Return Lines Are Used On Certain C18 Marine Engines {1274} Caterpillar


A New Fuel Return Lines Are Used On Certain C18 Marine Engines {1274}

Usage:

C18 JKX
Engine
C18 (S/N: JLE1-5633)
Marine Engine
C18 MARINE (S/N: JKX1-1983)

Description Of Change: The new fuel lines help prevent cracking at the end of the lines by reducing fatigue from vibrations. The single fuel return line has been split into two separate lines improving tolerance and aligning the mounting points.

Adaptable To: The following changes are adaptable to the products within the listed serial numbers, and are effective with all products after the listed serial numbers.

The previous 383-3544 Hose and Tube As is being replaced by the parts numbers listed in Table 1.

Table 1
Item  Qty  Part Number  Part Name 
214-7568  O-Ring Seal 
228-7090  O-Ring Seals 
329-4047  Studs 
353-7957  Grommets 
516-3792  Hose and Tube As 
519-6971  Hose and Tube As 
7T-4469  Spacers 
8T-1887  Clips 
8T-1888  Clips 
10  9S-8752  Full Nut 
11  9X-2085  Elbow 
12  9X-6458  Hard Washers 

Caterpillar Information System:

Marine Selective Catalytic Reduction (SCR) Retrofit Aftertreatment Diesel Exhaust Fluid Pump - Replace
3512B Generator Set Engines with Dynamic Gas Blending Event Codes
SCR Retrofit Aftertreatment Catalyst (SCR) - Clean/Inspect
SCR Retrofit Aftertreatment Catalyst (DOC) - Replace
SCR Retrofit Aftertreatment Catalyst (DOC) - Clean/Inspect
SCR Retrofit Aftertreatment Fluid Recommendations
New Cylinder Head Available for 3512E Petroleum Well Service Engines {1100, 7555} New Cylinder Head Available for 3512E Petroleum Well Service Engines {1100, 7555}
Improved Venturi Tubes Are Now Used on Certain C27 and C32 Commercial Engines {1071} Improved Venturi Tubes Are Now Used on Certain C27 and C32 Commercial Engines {1071}
3500 and 3500B Engines Engine Operation
G3500H Generator Set Engine Engine Monitoring System
3500E EPA Tier 4 Final and IMO-II/III Switchable Marine Engines Crankshaft Position for Fuel Injector Adjustment and Valve Lash Setting
SCR Retrofit Aftertreatment Before Starting Engine
323F SA Excavator and 323F MHPU Machine Systems Cylinder Drift - Check - Empty Bucket
G3500H 50Hz Generator Sets Engine Air Cleaner Element - Replace
New Software Is Now Used For Certain 3516C Series Engines {1920} New Software Is Now Used For Certain 3516C Series Engines {1920}
A New Closed Crankcase Ventilation Drain Hose and Check Valve Are Now Used on Certain C18 Marine Separate Circuit Aftercooler Engines {1317} A New Closed Crankcase Ventilation Drain Hose and Check Valve Are Now Used on Certain C18 Marine Separate Circuit Aftercooler Engines {1317}
G3500H 60Hz Generator Sets Jacket Water Heater - Check
3500 Industrial and Generator Set Engines Engine Operation
G3516 TA Engine Electronic Service Tools
Installing Coolant Tubes and Clamps on Certain C175-16 Locomotive Engines {1307, 1380} Installing Coolant Tubes and Clamps on Certain C175-16 Locomotive Engines {1307, 1380}
SCR Retrofit Aftertreatment Exhaust Inlet Nitrogen Oxide Sensor - Inspect/Replace
G3516 TA Engine Engine Monitoring System
SCR Retrofit Aftertreatment Exhaust Outlet Nitrogen Oxide Sensor - Inspect/Replace
A New Relay Is Now Used for Certain 3500 and C175 Tier 4 Urea Dosing Cabinets {7451, 7490} A New Relay Is Now Used for Certain 3500 and C175 Tier 4 Urea Dosing Cabinets {7451, 7490}
Back to top
The names Caterpillar, John Deere, JD, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
CH-Part.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only.