NHTSA ID Number: 11030178
Manufacturer Communication Number: TSB 26-2112
TSB/Document Date: 2026-03-23
Summary
This bulletin supersedes TSB 26-2059. Reason For Update: To add missing labor operations. Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions: - No upshift past second gear - Unable to achieve third gear ratio - Illuminated malfunction indicator lamp (MIL) with DTCs P0757 and P2701 This may be due to a damaged one-way clutch (OWC).
Possible)
Transmission Fluid Heat Exchanger
ML3Z-3B478-A
Only If Necessary (1
Possible)
Front Driveshaft Slip Yoke Boot Clamp (Required ONLY If Boot Is
Replaced)
ML3Z-3B478-B
Only If Necessary (1
Possible)
Front Driveshaft Slip Yoke Boot Clamp
ML3Z-4421-A
Only If Necessary (1
Possible)
Front Driveshaft Slip Yoke Boot
W701228-S300
Only If Necessary (2
Possible)
Engine Block
Dowel Pins (5.0L/5.2L)
W718758-S300
Only If Necessary (2
Possible)
Engine Block Dowel Pins (2.7L/3.5L)
Parts - Expedition/Navigator Transmission Removal And Installation
Service Part
Number
Claim Quantity
Description
7L1Z-4B496-C
2
CV Joint-To-Pinion Flange Cup Bolts & Retaining Straps (4WD)
JL1Z-7N134-A
1
Park Override Lever Bolt (If Equipped)
ML3Z-3B478-B
Only If Necessary (1
Possible)
Front Driveshaft Slip Yoke Boot Clamp
N811880-S100
4 Or 8 Pieces (Flange
Dependent)
PL3Z-5C226-A
2
Catalytic Converter Gasket
W520113-S440
4
Stabilizer Bar Bracket Nuts
W520114-S442
4
Transmission Support Crossmember Nuts
W705443-S900
4
Catalytic Converter Nuts
W709771-S440
2
Transmission Mount Nuts
W711140-S901
3
Transmission Insulator Bolts And Washers (RWD)
W714418-S439
4
Transmission Support Crossmember Bolts
W714682-S442
1
Driveshaft Center Bearing Nut (If Equipped With Two Piece
Driveshaft)
W715618-S437
4
Torque Converter Nuts
W716375-S900
9
Transfer Case Bolts (4WD)
W718353-S900
4
Transmission Support Insulator Bolts (4WD)
W718772-S439
1
Driveshaft Center Bearing Bolt (If Equipped With Two Piece
Driveshaft)
W719738-S439
1
Driveshaft Center Bearing Bracket Mounting Stud (If Equipped With
Two Piece Driveshaft)
W720882-S442
1
Transmission Fluid Heat Exchanger Bolt
CVC-13DL-G
As Needed
Motorcraft® Yellow Prediluted Antifreeze/Coolant (Canada Only)
VC-13DL-G
As Needed
Motorcraft® Yellow Prediluted Antifreeze/Coolant (All Markets
Except Canada)
Driveshaft Flange To Flange Bolts
CXT-10-LV6
As Needed
Motorcraft® MERCON® LV Automatic Transmission Fluid (4WD)
(Canada Only)
As Needed
Motorcraft® MERCON® LV Automatic Transmission Fluid (4WD)
(All Markets Except Canada)
XT-12-QULV
As Needed
Motorcraft® MERCON® ULV Automatic Transmission Fluid
TA-24-B
As Needed
Motorcraft® Thread Sealant With PTFE (4WD)
XG-1-E1
As Needed
Motorcraft® Premium Long-Life Grease
XL-5-A
As Needed
Motorcraft® Multi-Purpose Grease Spray
Parts - Expedition/Navigator Transmission Removal And Installation - Parts To Inspect And Replace Only If
Necessary
Service Part
Number
Claim Quantity
Description
ML3Z-7869-C
Only If Necessary (1
Possible)
Transmission Fluid Heat Exchanger
ML3Z-3B478-A
Only If Necessary (1
Possible)
Front Driveshaft Slip Yoke Boot Clamp (Required ONLY If Boot Is
Replaced)
ML3Z-4421-A
Only If Necessary (1
Possible)
Front Driveshaft Slip Yoke Boot
W718758-S300
Only If Necessary (2
Possible)
Engine Block Dowel Pins
Parts - Mustang Transmission Removal And Installation
Service Part
Number
Claim Quantity
Description
BR3Z-5B266-A
1
Right Exhaust Gasket
FR3Z-4B496-B
3
Driveshaft To Pinion Flange Bolts
N800594-S101
4 Or 8 Pieces (Flange Dependent) Driveshaft Flange To Flange Bolts (8pcs For 4 Bolt Style
Transmission Yoke)
W500545-S439
3
Driveshaft To Transmission Flange Bolts (If Equipped)
W705443-S900
2
Catalytic Converter Nuts
W710726-S437
2
Selector Lever Cable Bracket Bolts
W712334-S440
4
Strut Tower Cross Brace Nuts (5.0L)
W715131-S437
1
Heat Exchanger Tube Bracket Bolt/Transmission Fluid
Cooler Tube Bolt
W715618-S437
5.0L Require 4 Pieces, 2.3L
Require 6 Pieces
W717822-S439
2
Driveshaft Center Bearing Bolts
W719298-S439
3
Driveshaft To Pinion Flange Bolts
TA-25-B
As Needed
Motorcraft® Thread Sealant With PTFE
XL-1
As Needed
Motorcraft® Penetrating and Lock Lubricant
XL-2
As Needed
Motorcraft® High Temperature Nickel Anti-Seize Lubricant
XL-5-A
As Needed
Motorcraft® Multi-Purpose Grease Spray
XT-12-QULV
As Needed
Motorcraft® MERCON® ULV Automatic Transmission
Fluid
Torque Converter Nuts
Parts - Mustang Transmission Removal And Installation - Parts To Inspect And Replace Only If Necessary
Service Part Number Claim Quantity
Description
JL3Z-9439-A
Only If Necessary (1 Possible) Intake Gaskets (5.0L)
JR3Z-4782-B
Only If Necessary (1 Possible) Flex Coupling
LJ9Z-7J227-A
Only If Necessary (4 Possible) Fluid Cooler O-Ring Seals
Parts - Transit Transmission Removal And Installation
Service Part
Number
Claim Quantity
Description
KK2Z-00811-A
2
Wheel Hub Nut
LK4Z-00815-A
1
Left Halfshaft O-Ring Oil Seal
LK4Z-3B498-A
1
Left Halfshaft Snap-Ring Circlip
LK4Z-4B496-A
6
CV Joint-to-Pinion Flange Cup Bolts And Retaining Straps/CV Joint To
Transfer Case Flange Bolts & Straps (AWD)
N800594-S100
4 Or 8 Pieces (Flange
Dependent)
W500463-S442
4
Brake Caliper Anchor Plate Bolts
W505264-S442
2
Driveshaft Safety Strap Bolts (If Equipped)
W505434-S439
4
Lower Load Path Bar Retainers
W506434-S439
8
Lower Load Path Bar Bolts
W520215-S442
4
Tie Rod End Nut/Front Subframe Forward Nuts (2 per application)
W520514-S440
4
Catalytic Converter Flange Nuts
W709176-S300
2
Splash Shield Push Pins
W709653-S303
8
Pop Rivets - Muffler Heat Shield/Front Floor Heat Shield
W710660-S441
2
Transmission Support Insulator Nuts
W711076-S442
2
Lower Ball Joint Nut
1
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TSB/Document ID: TSB 26-2112
Replacement Service Bulletin Number:
MFR Communication Date: 2026-03-18
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: UNKNOWN OR OTHER
MFR Component System:
MFR Component Subsystem:
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