NHTSA ID Number: 11031987
Manufacturer Communication Number: SS 581801-FCCC
TSB/Document Date: 2026-05-02
Summary
Service Solution for 10 Gallon DEF Header Service Replacement Additional Parts (298)
1x 23-10742-100
1x 23-10900-025
Remove butterfly band
D04-36841-000: SSI Install
Daimler AG
D04-37484-000: KUS Install
(see 23W-C00685 & D04-37538-000)
10 Gallon KUS DEF Header Service Notes/ Engineering/ 07/22/2025
8
SSI Bill
KUS Bill
23V-C05396
23V-C07106
23V-C05397
23V-C07107
SSI Install
KUS Install
D04-36857-000
D04-37488-000
Coolant supply & DEF
supply line clipping
1x 23-12866-001
2x 23-09796-629
DEF supply & return line clipping
1x 23-10900-025
1x 23-11357-020
1x 23-13861-104
1x 23-11743-125
Coolant supply & return
line clipping
1x TYCDCT110HIR
Coolant return line clipping
1x 23-11357-016
1x 23-13861-104
1x 23-10742-100
1x 23-10900-025
D04-36857-000: SSI Install
Daimler AG
D04-37488-000: KUS Install
(see 23W-C00692 & D04-37541-002)
10 Gallon KUS DEF Header Service Notes/ Engineering/ 07/22/2025
9
SSI Bill
KUS Bill
23V-C05394
23V-C07104
23V-C05395
23V-C07105
SSI Install
KUS Install
D04-36857-001
D04-37488-001
Coolant supply & DEF
supply line clipping
1x 23-12866-001
2x 23-09796-629
DEF supply & return line clipping
1x 23-10900-025
1x 23-11357-020
1x 23-13861-104
1x 23-11743-125
Coolant supply & return
line clipping
1x TYCDCT110HIR
Coolant return line clipping
1x 23-11357-016
1x 23-13861-104
1x 23-10742-100
1x 23-10900-025
Coolant supply & DEF
pressure line clipping
1x 23-12866-001
2x 23-09796-629
D04-36857-001: SSI Install
Daimler AG
D04-37488-001: KUS Install
(see 23W-C00691 & D04-37541-001)
10 Gallon KUS DEF Header Service Notes/ Engineering/ 07/22/2025
10
SSI Bill
KUS Bill
23V-C05392
23V-C07102
23V-C05393
23V-C07103
SSI Install
KUS Install
D04-36857-002
D04-37488-002
Coolant supply & DEF
supply line clipping
1x 23-12866-001
2x 23-09796-629
DEF supply & return line clipping
1x 23-10900-025
1x 23-11357-020
1x 23-13861-104
1x 23-11743-125
Coolant supply & return
line clipping
1x TYCDCT110HIR
Coolant return line clipping
1x 23-11357-016
1x 23-13861-104
1x 23-10742-100
1x 23-10900-025
Coolant supply & DEF
pressure line clipping
1x TYCDCT110HIR
D04-36857-002: SSI Install
Daimler AG
D04-37488-002: KUS Install
(see 23W-C00690 & D04-37541-000)
10 Gallon KUS DEF Header Service Notes/ Engineering/ 07/22/2025
11
SSI Bill
KUS Bill
23V-C05398
23V-C07108
23V-C05906
23V-C05918
23V-C05399
23V-C07109
23V-C05907
23V-C05919
SSI Install
KUS Install
D04-36851-000
D04-37485-000
D04-36851-001
D04-37485-001
DEF supply & return line clipping
1x 23-12866-001
2x 23-09796-629
DEF supply line clipping
1x 23-11357-016
1x 23-10742-100
1x 23-10900-025
1x 23-13861-104
Coolant supply & return
line clipping
1x TYCDCT110HIR
Coolant return line clipping
1x 23-11357-016
1x 23-13861-104
1x 23-10742-100
1x 23-10900-025
D04-36851-000/-001: SSI Install
Daimler AG
D04-37485-000/-001: KUS Install
(see 23W-C00686 & D04-37539-000)
10 Gallon KUS DEF Header Service Notes/ Engineering/ 07/22/2025
12
SSI Bill
KUS Bill
23V-C05904
23V-C05916
23V-C05905
23V-C05917
23V-C05900
23V-C05912
23V-C05901
23V-C05913
SSI Install
KUS Install
D04-36852-000
D04-37486-000
D04-36852-001
D04-37486-001
DEF supply & return line clipping
1x 23-12866-001
2x 23-09796-629
DEF supply line clipping
1x 23-11357-016
1x 23-10742-100
1x 23-10900-025
1x 23-13861-104
Coolant supply and DEF return
& pressure line clipping
1x TYCDCT110HIR
Coolant supply & return
line clipping
1x TYCDCT110HIR
Coolant return line clipping
1x 23-11357-016
1x 23-13861-104
1x 23-10742-100
1x 23-10900-025
D04-36852-000/-001: SSI Install
Daimler AG
D04-37486-000/-001: KUS Install
(see 23W-C00689 & D04-37540-002)
10 Gallon KUS DEF Header Service Notes/ Engineering/ 07/22/2025
13
SSI Bill
KUS Bill
23V-C05902
23V-C05914
23V-C05903
23V-C05915
SSI Install
KUS Install
D04-36853-000
D04-37487-000
DEF supply & return line clipping
1x 23-12866-001
2x 23-09796-629
DEF supply line clipping
1x 23-11357-016
1x 23-10742-100
1x 23-10900-025
1x 23-13861-104
Coolant supply & return
line clipping
1x TYCDCT110HIR
Coolant return line clipping
1x 23-11357-016
1x 23-13861-104
1x 23-10742-100
1x 23-10900-025
D04-36853-000: SSI Install
Daimler AG
D04-37481-000: KUS Install
(see 23W-C00688 & D04-37540—000/001)
10 Gallon KUS DEF Header Service Notes/ Engineering/ 07/22/2025
14
SSI Bill
KUS Bill
23V-C05908
23V-C05920
23V-C05910
23V-C05922
23V-C05909
23V-C05921
23V-C05911
23V-C05923
SSI Install
KUS Install
D04-36870-000
D04-37489-000
D04-36870-001
D04-37489-001
Remove formed hoses
Coolant return line
2.2 ft 48-00081-062
DEF supply & return line clipping
1x 23-11358-029
1x 23-13861-106
1x 23-11747-125
1x 23-09114-002
Coolant supply line
1.2 ft 48-00081-062
Coolant return line clipping
1x 23-11357-016
1x 23-13861-104
1x 23-10742-100
1x 23-10900-025
D04-36870-000/-001: SSI Install
Daimler AG
D04-37489-000/-001: KUS Install
(Continued on next slide)
(see 23W-C00693 & D04-37542-000)
10 Gallon KUS DEF Header Service Notes/ Engineering/ 07/22/2025
15
SSI Bill
KUS Bill
23V-C05908
23V-C05920
23V-C05910
23V-C05922
23V-C05909
23V-C05921
23V-C05911
23V-C05923
SSI Install
KUS Install
D04-36870-000
D04-37489-000
D04-36870-001
D04-37489-001
Coolant supply line clipping
1x TYCHDM250HIR
1X 23-09796-629
1X 23-13861-104
1X 23-10742-100
1X 23-09114-016
D04-37489-000/-001: KUS Install
Daimler AG
10 Gallon KUS DEF Header Service Notes/ Engineering/ 07/22/2025
16
2. WIV DEF Lines
Freightliner
Custom Chassis Corp.
SSI Bill
KUS Bill
SSI Install
KUS Install
Page
23W-C00538
23W-C00543
D04-35414-000
D04-37494-000
19
23W-C00539
23W-C00544
D04-35414-001
D04-37494-001
19
23W-C00540
23W-C00545
D04-33998-000
D04-37491-000
20
23W-C00541
23W-C00546
D04-33999-000
D04-37492-000
21
23W-C00542
23W-C00547
D04-34000-000
D04-37493-000
22
23W-C00667
23W-C00685
D04-33747-000
D04-37538-000
23
23W-C00668
23W-C00686
D04-33746-000
D04-37539-000
24
23W-C00669
23W-C00687
D04-33820-000
D04-37540-000
25
23W-C00670
23W-C00688
D04-33820-001
D04-37540-001
25
23W-C00671
23W-C00689
D04-33820-002
D04-37540-002
25
23W-C00672
23W-C00690
D04-33819-000
D04-37541-000
26
23W-C00673
23W-C00691
D04-33819-001
D04-37541-001
26
23W-C00674
23W-C00692
D04-33819-002
D04-37541-002
26
23W-C00675
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TSB/Document ID: SS 581801-FCCC
Replacement Service Bulletin Number:
MFR Communication Date: 2026-04-23
MFR Internal Campaign ID/Software Version:
Communication Type: Other
NHTSA Components: ENGINE
MFR Component System:
MFR Component Subsystem:
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