Safety Recall 20S66 – Transmission Oil Cooler Line Inspection – 2021 Ford F-650 & F-750

November 10, 2020 NHTSA CAMPAIGN NUMBER: 20V691000

Transmission Oil Cooler Line may Contact AC Pulley

Leaking transmission fluid may contact hot engine components, increasing the risk of an engine compartment fire.

 

NHTSA Campaign Number: 20V691

Manufacturer FordeBay logo Motor Company

Components POWER TRAIN

Potential Number of Units Affected 225

 

Summary

FordeBay logo Motor Company (FordeBay logo) is recalling certain 2021 F-650 and F-750 vehicles equipped with 7.3L gas engines. The transmission oil cooler line may contact the air conditioning compressor pulley, possibly causing a transmission fluid leak.

 

Remedy

FordeBay logo will notify owners, and dealers will inspect transmission oil cooler lines for proper orientation and damage, correcting the lines and replacing any that are damaged, free of charge. The recall began December 21, 2020. Owners may contact FordeBay logo customer service at 1-866-436-7332. FordeBay logo’s number for this recall is 20S66.

 

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

 

Check if your Vehicle has a Recall

 


AFFECTED VEHICLES

Vehicle Model Year Assembly Plant Build Dates
F-650/7502021OhioJune 1, 2020 through June 24, 2020

 

REASON FOR THIS SAFETY RECALL

In some of the affected vehicles, one of the Transmission Oil Cooler Lines may have been improperly installed, which may subsequently come in contact with the Air Conditioning Pulley. This could potentially result in a leak. Leaking transmission fluid can result in erratic shifting, missed gear shifting, vibration, shudder and check engine light illumination. Leaking transmission fluid in this location could also come in contact with the engine exhaust, creating a fire risk.

 

SERVICE ACTION

Before demonstrating or delivering any new in-stock vehicles involved in this recall, dealers are to inspect the Transmission Oil Cooler Lines per technical instructions and replace if necessary. This service must be performed on all affected vehicles at no charge to the vehicle owner.

 

OWNER NOTIFICATION MAILING SCHEDULE

Owner letters are expected to be mailed the week of December 21, 2020. Dealers should repair any affected vehicles that arrive at their dealerships, whether or not the customer has received a letter.

 

PARTS REQUIREMENTS / ORDERING INFORMATION

To ensure enough quantity of Transmission Oil Cooler Lines are available, dealers will have to submit a VIN-specific Part Order contact via the SSSC Web Contact Site. Parts will be limited to sold and customer owned units.

Part Order contacts should include images of VIN and mileage for client owned vehicles or an image of signed sales contract on sold vehicles.

Less than 5% of the affected vehicle population is expected to require Transmission Oil Cooler Line replacement.

Part Number  Description Order Quantity Claim Quantity
FC4Z-7C410-ATransmission Oil Cooler Line (Only order if damage)11

 

Dealers will be notified via a DOES II communication if circumstances warrant a change in part supply strategy and when open ordering resumes.

Order the parts below through normal order processing channels:

Part Number  Description Order Quantity Claim Quantity
XT-10-QLVC
Ford Genuine Ford Fluid XT-10-QLVC MERCON-LV Automatic Transmission Fluid - 1 Quart

Last update on 2026-06-09 / Affiliate links / Images from Amazon Product Advertising API


 

Mercon LV qtAs needed

 

CERTAIN 2021 MODEL YEAR F-650/750 VEHICLES EQUIPPED WITH A 7.3L GAS ENGINETRANSMISSION OIL COOLER LINE INSPECTION

 

SERVICE PROCEDURE

1. Open the hood. See Figure 1.

2. Remove the air cleaner. Please follow the Workshop Manual (WSM) procedures in Section 303-12B.

3. While standing on passenger side of vehicle, inspect the left hand (LH) transmission cooler line for correct orientation. The transmission cooler line when installed correctly will mirror the right hand (RH) side transmission cooler line. See Figure 2. If LH side transmission cooler line is not in correct orientation, it will be at risk of being to close to A/C compressor pulley. Is the transmission cooler line in the correct orientation?

If PASS – Proceed to Step 10.

If DOES NOT PASS – Proceed to Step 4.

4. Inspect the line for damage. A transmission cooler line not in correct orientation may show signs of damage or rubbing from the A/C compressor pulley. See Figure 3. Does the transmission cooler line show signs of damage or rubbing?

If YES – Proceed to Step 6.

If NO – Proceed to Step 5.

5. Rotate the transmission cooler line towards the front of the vehicle until the proper orientation is achieved, then proceed to Step 10. See Figure 4.

NOTE: This step is only if transmission oil cooler line has to be replaced from damage, if no damage proceed to Step 10.

6. Remove the transmission cooler line quick-connect coupling secondary latches. See Figure 5.

NOTE: Be prepared to collect escaping fluid.

7. Disconnect, remove and discard the transmission cooler line using special tool 307-569. See Figure 6.

8. Install the new transmission cooler line in the proper orientation. See Figure 7.

9. Install the transmission cooler line quick-connect coupling secondary latches. See Figure 8.

10. Install the air cleaner. Please follow the WSM procedures in Section 303-12B.

11. If the transmission cooler line was replaced, check the transmission fluid level and adjust as necessary. Please follow the WSM procedures in Section 307-01.

IMPORTANT NOTE: Federal law prohibits selling motor vehicle parts or components that are under safety, compliance, or emissions recall. Unless a part is requested to be returned to FordeBay logo, all parts replaced under this FSA must be scrapped in accordance with all applicable local, state and federal environmental protection and hazardous material regulations. Refer to the Parts Retention, Return, & Scrapping section of the FSA dealer bulletin for further information.

 


 


2 Affected Products

Vehicles

MAKEMODELYEAR
FORDeBay logoF-6502021
FORDeBay logoF-7502021

 


10 Associated Documents

ISSUED Owner Notification Letter(Part 577)

RCONL-20V691-4532.pdf 50.726KB

 


Manufacturer Notices(to Dealers,etc) – Dealer Notification re NEW VEHICLE DEMONSTRATION / DELIVERY HOLD Safety Recall 20S66 Certain 2021 Model Year F-650/750 Trucks Equipped with a 7.3L Gas Engine Transmission Oil Cooler Line Inspection

RCMN-20V691-9586.pdf 1778.858KB

 


Recall Quarterly Report #3, 2021-2

RCLQRT-20V691-2020.PDF 211.326KB

 


ISSUED Renotification Notice

RCRN-20V691-8644.pdf 500.088KB

 


Recall Quarterly Report #2, 2021-1

RCLQRT-20V691-7998.PDF 211.235KB

 


Defect Notice 573 Report

RCLRPT-20V691-4112.PDF 214.368KB

 


Manufacturer Notices(to Dealers,etc) – Dealer Notification re NEW VEHICLE DEMONSTRATION / DELIVERY HOLD – Advance Notice – Safety Recall 20S66 Certain 2021 Model Year Medium Duty Trucks Equipped with a 7.3L Gas Engine Transmission Oil Cooler Line Inspection

RCMN-20V691-0070.pdf 145.433KB

 


Recall Acknowledgement

RCAK-20V691-6984.pdf 244.276KB

 


Recall Quarterly Report #1, 2020-4

RCLQRT-20V691-1648.PDF 211.136KB

 


Recall Quarterly Report #4, 2021-3

RCLQRT-20V691-4187.PDF 211.433KB

 


Latest Recalls Documents

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=20V691&docType=RCL

 


 

Bestseller No. 4
TRIAX ULV ATF Full Synthetic, Ultra Low Viscosity, Automatic Transmission Fluid | for Dexron ULV, Mercon ULV, Many 10 & 8 and 9 Speed, Nissan Matic P, JATCO 9 Speed (1 Gallon)
  • Widely compatible with a huge range of vehicles and specifications including: Dexron ULV, Mercon ULV, Nissan Matic P, JATCO 9 Speed, BMW 83-22-2-413-477 ATF 7 and many other ULV applications.
  • EXTENDED DRAIN: Long drain intervals of up to 150,000 miles for standard driving and 70,000 miles for heavy-duty applications
  • COLD WEATHER READY: Engineered for extreme conditions with a pour point down to -50°F, ensuring top fuel economy and performance in freezing temperatures
  • OEM REPLACEMENT: 100% synthetic ATF Compatible with Mercon ULV, Dexron ULV, WSS-M2C949-A or MB 2236.17, and other ULV applications in European and US cars, trucks, and SUVs
  • ADVANCED COMPATIBILITY: Compatible with GM 10L80/10L90, Escalade (2021+ with 10L80), CT6 3.0TT and 4.2TT (2019+ with 10L80), Silverado 1500 (2019+ with 10L80), Camaro SS / ZL1 (2017+ with 10L80/90), Tahoe and Suburban (2021+ with 10-speed), Sierra 1500 (2019+ with 10L80), and Yukon and Yukon XL with 10 speed transmissions

Last update on 2026-05-31 / Affiliate links / Images from Amazon Product Advertising API


 

This product presentation was made with AAWP plugin.

Leave a Comment

Share to...