New Diesel Exhaust Fluid (DEF) Lines are Now Used on Certain Cat® Engines {108U} Caterpillar

New Diesel Exhaust Fluid (DEF) Lines are Now Used on Certain Cat® Engines {108U}

Usage:

C9.3 CS9

Electric Power Generation: XQ375 (S/N: X3F1-146)
Engine: C13 (S/N: N3F1-2575); C15 (S/N: N5F1-1181); C18 (S/N: N8F1-884)
Generator Set: C18 GEN SET (S/N: T351-109; RT81-1; X5F1-107; T4X1-206)
Industrial Engine: C13 IND (S/N: JR91-505); C9.3 (S/N: CS91-1908); C9.3B (S/N: NGH1-125)
Power Module: XQC1600 (S/N: N1M1-1571)

Description Of Change: New DEF lines with increased electrical wiring size of 28 AWG aids in eliminating the DEF heated lines electrical fault codes that are listed in Table 2

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 required parts are listed in Table 1.

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Table 1
Required Parts (As determined by application)
Qty	Part Number	Part Name
1	365-2237	Return Hose Assembly
1	365-2240	Diesel Exhaust Fluid Line As
1	381-0887	Hose As
1	389-2659	Hose As
1	389-9428	Hose As
1	389-9430	Diesel Exhaust Fluid Line As
1	398-9452	Hose As
1	398-9454	Hose As
1	423-3515	Hose As
1	423-5899	Hose As
1	424-0073	Hose As
1	424-1553	Hose As
1	437-9866	Diesel Exhaust Fluid Line As
1	437-9867	Diesel Exhaust Fluid Line As
1	506-5811	Hose As
1	506-5812	Hose As
1	381-0888	Hose As
1	398-9455	Hose As
1	389-2660	Hose As
1	506-5801	Hose As
1	506-5802	Hose As

The fault codes are listed in Table 2.

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Table 2
J1939 Code and Description	CDL Code and Description
4354–5 Aftertreatment 1 Diesel Exhaust Fluid Line Heater 1 : current Below Normal	3110–5 Aftertreatment #1 SCR Catalyst Reagent Line Heater #1 : Current Below Normal
4354–6 Aftertreatment 1 Diesel Exhaust Fluid Line Heater 1 : current Below Normal	3110–6 Aftertreatment #1 SCR Catalyst Reagent Line Heater #1 : Current Below Normal
4355–5 Aftertreatment 1 Diesel Exhaust Fluid Line Heater 2 : current Below Normal	3111–5 Aftertreatment #1 SCR Catalyst Reagent Line Heater #2 : Current Below Normal
4355–6 Aftertreatment 1 Diesel Exhaust Fluid Line Heater 2: current Below Normal	3111–6 Aftertreatment #1 SCR Catalyst Reagent Line Heater 2 : Current Below Normal
4356–5 Aftertreatment 1 Diesel Exhaust Fluid Line Heater 3 : current Below Normal	3112–5 Aftertreatment #1 SCR Catalyst Reagent Line Heater #3 : Current Below Normal
4356–6 Aftertreatment 1 Diesel Exhaust Fluid Line Heater 3: current Below Normal	3112–6 Aftertreatment #1 SCR Catalyst Reagent Line Heater #2 : Current Below Normal

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