SB-10054662-6351

20-76

114SD Radiator Mounting, Update—EPA10
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional

Century Class Conventional
Argosy COE
Cargo
Columbia

Freightliner
Service Bulletin

122SD and Coronado
Business Class M2
Cascadia
> 108SD/114SD

General Information
Some EPA10 compliant Freightliner 114SD vehicles with Detroit engines, manufactured March 2010 and later,
with specific combinations of engine operating parameters, may have radiator failures resulting in a coolant leak
due to a crack in the coolant tube. See Fig. 1. Leaks in other places (at the end tank, header, fittings, or any
place other than the coolant tubes) do not apply for this bulletin. If leaks occur in the coolant tubes, Freightliner
recommends a radiator update to an isolated engine-mounted radiator. Isolated engine-mounted radiators were
production installed in 114SD models beginning July 30, 2012. This procedure is to replace a standard enginemounted radiator with an isolated engine-mounted radiator.

05/31/2005

f500383

Fig. 1, Crack in Coolant Tube

IMPORTANT: Before scheduling a vehicle for this procedure, determine the vehicle configuration. The
required parts for this procedure will vary depending on if the vehicle being serviced has a set forward (SF) or set back (SB) axle, the type of engine installed, and the front frame and crossmember
configuration. See Fig. 2, Fig. 3, and Fig. 4 for the different frame and crossmember configurations.
Refer to Table 1 under "Parts" to locate the correct table listing the required parts for that vehicle.

Radiator Replacement
1. Park the vehicle on a level surface, shut down the engine, and set the parking brake. Chock the tires.
2. Remove the hood or remove the straps and open the hood while supporting it. For instructions, see Group
88 in the 108SD/114SD Workshop Manual.
3. Remove the bumper. For instructions, refer to Group 31 of the 108SD/114SD Workshop Manual.
4. Drain the coolant from the radiator and engine block.
5. Remove the charge air cooler (CAC) plumbing at the turbocharger outlet and the CAC inlet and at the CAC
outlet and the engine inlet. See Fig. 5 and Fig. 6.
6. Remove the upper radiator hose. See Fig. 7 for DDC engines, or Fig. 8 for Cummins engines.

Freightliner Service Bulletin, December 2013

Page 1

20-76
Freightliner
Service Bulletin

114SD Radiator Mounting, Update—EPA10
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional

11/07/2013

f311171

Fig. 2, Bolt-On Front Frame and Crossmember

Century Class Conventional
Argosy COE
Cargo
Columbia

11/07/2013

122SD and Coronado
Business Class M2
Cascadia
> 108SD/114SD

f311172

Fig. 3, Drop-Cast Front Frame and Crossmember

11/07/2013

f311173

Fig. 4, Splayed Front Frame and Crossmember

7. Disconnect the surge tank vent line. See Fig. 9.
8. Remove the grille from the radiator.
9. Remove the baffles and mounting brackets located on both sides of the grille.
10. Loosen the A/C condenser and move it out of the way as follows.
10.1

Remove the receiver-drier and upper condenser line mounting nuts, then free the receiver-drier. See
Fig. 10.

10.2

Remove the radiator baffle from the right side of the radiator.

Page 2

Freightliner Service Bulletin, December 2013

20-76

114SD Radiator Mounting, Update—EPA10
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional

Century Class Conventional
Argosy COE
Cargo
Columbia

4

3

2

Freightliner
Service Bulletin

122SD and Coronado
Business Class M2
Cascadia
> 108SD/114SD

1

1
3

2
6
5

6

2

10/16/2012

1.
2.
3.
4.

4

f200767

CAC Inlet
Hose
Tube
Hose

5. Turbocharger Outlet
Pipe
6. Clamp

10/16/2012

1. CAC Outlet
2. Clamp

Fig. 5, CAC Plumbing, Turbocharger-to-CAC

f200768

3. Hose
4. Engine Inlet

Fig. 6, CAC Plumbing, CAC-to-Engine Inlet

NOTE: The A/C lines run through the right-side baffle. The baffle must be moved with the
condenser.
10.3

Unbolt the A/C condenser from the CAC. See Fig. 11.

NOTE: Wrap the condenser in cardboard to protect it while it is moved.
10.4

Carefully move the condenser around and set it on the right front tire. Secure it as needed. See Fig.
12 .

11. Remove the three radiator strut rods and discard them.
12. Unbolt the city horn from the side radiator channel if applicable.
13. Remove the upper fan shroud. See Fig. 13.
14. Remove the fan. For instructions, refer to Group 20 of the 108SD/114SD Workshop Manual.
15. Disconnect the lower radiator hose assembly at the radiator. See Fig. 14 for DDC engines, or Fig. 8 for
Cummins engines.
16. Disconnect the transmission cooler lines from the radiator. Cap and/or plug the fittings to prevent spills.
17. Unbolt the radiator from the lower mounts.
18. Using an appropriate lifting device, remove the radiator assembly from vehicle. See Fig. 15.
19. Remove the lower fan shroud from the radiator. See Fig. 13.
20. Remove the upper radiator baffle.
21. Remove the CAC from the radiator.
22. Remove the transmission cooler fittings and the upper vent line fitting.
23. Install the transmission cooler fittings and upper vent line fitting on the new radiator.

Freightliner Service Bulletin, December 2013

Page 3

20-76

114SD Radiator Mounting, Update—EPA10

Freightliner
Service Bulletin

FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional

Century Class Conventional
Argosy COE
Cargo
Columbia

122SD and Coronado
Business Class M2
Cascadia
> 108SD/114SD

1

2

3

4

1
2

1
10/16/2012

1. Radiator
2. Upper Radiator Hose
3. Clamp

f200771

4. Clamp Fastener
5. Lower Radiator Hose

1
6

Fig. 7, Upper Radiator Hose Installation, DDC Engine

1
4
1

11/07/2013

1.
2.
3.
4.
5.
6.

3 1

5

f200830

Clamp
Upper Radiator Hose
Hose, Lower Radiator, Radiator to Tube
Lower Radiator Tube
Fastener
Hose, Lower Radiator Tube-to-Engine

Fig. 8, Radiator Hose Installation, Cummins Engine

24. Install the CAC on the new radiator.
25. Install the upper radiator baffle.
26. Apply sealant (48-00094-141) to the threads of the fasteners, then install the fan. Tighten 30 lbf·ft (41 N·m).
27. Install the fan shroud on the new radiator. See Fig. 13.
28. Remove the lower radiator mounting brackets from the engine.
29. Install the new lower radiator mounting brackets. See Fig. 16. Tighten 191 to 234 lbf·ft (260 to 317 N·m).
30. Install the lower radiator isolators on the mounting brackets. See Fig. 17.
31. Using an appropriate lifting device, position the new radiator assembly in the vehicle. Install the mounting
nuts, but do not tighten them at this time. See Fig. 17.
32. Install the lower radiator hose.

Page 4

Freightliner Service Bulletin, December 2013

20-76

114SD Radiator Mounting, Update—EPA10
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional

Century Class Conventional
Argosy COE
Cargo
Columbia

Freightliner
Service Bulletin

122SD and Coronado
Business Class M2
Cascadia
> 108SD/114SD

3
2
1
1

2
10/16/2012

f200769

1. Clamp
2. Line

11/28/2012

3. P-Clamp

1. Upper Condenser
Line Mounting Nuts

f200773

2. Receiver-Drier
Mounting Nuts

Fig. 9, Surge Tank Vent Line
Fig. 10, Receiver-Drier Installation (typical)

2

3
4

1
05/24/2012

1. A/C Condenser
2. Isolator

f200757

3. Washer
4. Nut
Fig. 11, A/C Condenser Installation

Freightliner Service Bulletin, December 2013

Page 5

20-76
Freightliner
Service Bulletin

114SD Radiator Mounting, Update—EPA10
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional

Century Class Conventional
Argosy COE
Cargo
Columbia

122SD and Coronado
Business Class M2
Cascadia
> 108SD/114SD

1