How to service and repair the Automatic Transmission Oil Cooler Line for the 4R70E/4R75E on Lincoln Town Car?

The first step to handle 4R70E/4R75E transmission fluid cooler tube maintenance requires hoisting the vehicle in NEUTRAL position. The cooling system requires complete clean-out of metal particles and clutch material because these substances cause transmission failure to happen again. The Thermostatic Bypass Valve in Oil-To-Air (OTA) transmission fluid coolers makes them non-repairable products so replacement with new OTA transmission fluid coolers is required when the component shows either leakage or substantial wear. Use a suitable torque converter/fluid cooler cleaner to clean transmission fluid cooler tubes while creating a strong fluid flow before executing the following procedure. Weak or contaminated fluid flow will require replacement of the flush equipment filter. The transmission fluid cooler tubes should be detached from the OTA cooler for cleaning by installing two new rubber hoses to the transmission side of the steel tubes. A rubber hose must replace the OTA cooler before securing the tank pressure line onto the longest steel transmission fluid return tube with a tank return hose extending into the fluid tank reservoir. Activate the pump to allow transmission fluid circulation for 5 minutes with switching the pump ON and OFF to clear away contaminants. Turn off the pump while you remove the pressure hose from its connection with the return tube. Start by blowing out all remaining fluid from the transmission fluid cooler and its tubes through compressed air. Then reinstall the OTA cooler tubes by disconnecting the rubber return hose from the steel tube which remains. The coolers might still contain trapped contamination therefore replacing the OTA cooler with a new one will guarantee proper operation.

OEM Lincoln Automatic Transmission Oil Cooler Line

AT Oil Cooler Hose

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76 Automatic Transmission Oil Cooler Lines found

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Lincoln Cooler Line
Part Number: 7T4Z-7R081-B
$133.97 MSRP: $195.00
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Product Specifications
- Other Name: Tube Assembly
- Replaces: 7T4Z-7R081-A
Fits the following Lincoln Models:
- MKX | 2007-2009 | Base | 6 Cyl 3.5 L GAS
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Lincoln Inlet Pipe
Part Number: DG9Z-7890-B
$63.10 MSRP: $91.85
You Save: $28.75 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Hose - Oil Cooler; Automatic Transmission Oil Cooler Hose Assembly; Transmission Oil Cooler Line; Inlet Tube; Cooler Pipe
Fits the following Lincoln Models:
- MKZ | 2013-2016 | Base, Black Label | 4 Cyl 2.0 L GAS
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Lincoln Cooler Pipe
Part Number: BT4Z-7C410-B
$73.30 MSRP: $106.70
You Save: $33.40 (32%)
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Product Specifications
- Other Name: Tube - Oil Cooler; Automatic Transmission Oil Cooler Hose and Line
Fits the following Lincoln Models:
- MKX | 2012-2015 | Base | 6 Cyl 3.7 L GAS
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Lincoln Connector Tube
Part Number: L1MZ-7G071-BAD
$69.85 MSRP: $122.00
You Save: $52.15 (43%)
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Product Specifications
- Other Name: Tube Assembly; Transmission Oil Cooler Line
- Replaced by: L1MZ-7G071-J
Fits the following Lincoln Models:
- Aviator | 2020-2023 | Base, Black Label, Livery, Reserve | 6 Cyl 3.0 L GAS
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Lincoln Cooler Pipe
Part Number: NL1Z-7G071-B
$7.53 MSRP: $12.82
You Save: $5.29 (42%)
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Product Specifications
- Other Name: Tube Assembly; Hose & Tube Assembly; Line
- Replaces: NL1Z-7G071-A
Fits the following Lincoln Models:
- Navigator | 2022-2024 | Base, Black Label, L Base, L Black Label, L Livery, L Reserve, Reserve | 6 Cyl 3.5 L GAS
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Lincoln Tube Assembly
Part Number: DP5Z-7R081-D
$190.07 MSRP: $276.67
You Save: $86.60 (32%)
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Product Specifications
- Other Name: Transmission Oil Cooler Line
- Replaces: DP5Z-7R081-B
Fits the following Lincoln Models:
- MKZ | 2013-2016 | Base, Black Label | 6 Cyl 3.7 L GAS
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Lincoln Tube Assembly
Part Number: JL3Z-7R081-H
$110.21 MSRP: $160.42
You Save: $50.21 (32%)
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Product Specifications
- Other Name: Automatic Transmission Oil Cooler Hose Assembly; Transmission Oil Cooler Line; Inlet Tube; Cooler Pipe; Line
- Replaces: JL3Z-7R081-F, JL3Z-7R081-D, JL3Z-7R081-E, JL3Z-7R081-A
Fits the following Lincoln Models:
- Navigator | 2018-2021 | Base, Black Label, L Black Label, L Livery, L Reserve, L Select, Premiere, Reserve, Select | 6 Cyl 3.5 L GAS
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Lincoln Cooler Line
Part Number: EJ7Z-7R081-A
$272.17 MSRP: $399.67
You Save: $127.50 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Tube Assembly
Fits the following Lincoln Models:
- MKC | 2015-2019 | Base, Black Label, Premiere, Reserve, Select | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
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Lincoln Inlet Pipe
Part Number: HG9Z-7R081-D
$128.47 MSRP: $187.00
You Save: $58.53 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Tube Assembly; Automatic Transmission Oil Cooler Hose Assembly; Outlet Tube
Fits the following Lincoln Models:
- MKZ | 2017-2020 | Base, Black Label, Premiere, Reserve, Reserve I, Reserve II, Select | 4 Cyl 2.0 L GAS
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Lincoln Tube Assembly
Part Number: HP5Z-7R081-A
$232.22 MSRP: $341.00
You Save: $108.78 (32%)
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Product Specifications
- Other Name: Transmission Oil Cooler Line
Fits the following Lincoln Models:
- Continental | 2017-2020 | 80th Anniversary Coach Door Edition, Black Label, Coach Door Edition, Reserve | 6 Cyl 3.0 L GAS
- MKZ | 2017-2020 | Black Label, Reserve, Reserve II, Select | 6 Cyl 3.0 L GAS
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Lincoln Outlet Tube
Part Number: JL3Z-7890-G
$78.34 MSRP: $114.03
You Save: $35.69 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Hose - Oil Cooler
- Replaces: JL3Z-7890-C, JL3Z-7890-F
Fits the following Lincoln Models:
- Navigator | 2018-2021 | Base, Black Label, L Black Label, L Livery, L Reserve, L Select, Premiere, Reserve, Select | 6 Cyl 3.5 L GAS
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Lincoln Inlet Tube
Part Number: K2GZ-7R081-C
$143.58 MSRP: $209.00
You Save: $65.42 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Tube Assembly; Automatic Transmission Oil Cooler Hose Assembly; Transmission Oil Cooler Line; Cooler Pipe
Fits the following Lincoln Models:
- Nautilus | 2019-2023 | Base, Reserve, Select | 4 Cyl 2.0 L GAS
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Lincoln Return Tube
Part Number: F1FZ-7A031-C
$57.77 MSRP: $88.73
You Save: $30.96 (35%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Tube; Automatic Transmission Oil Cooler Tube
Fits the following Lincoln Models:
- MKC | 2017-2019 | Base, Black Label, Premiere, Reserve, Select | 4 Cyl 2.0 L GAS
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Lincoln Tube Assembly
Part Number: LX6Z-7R081-A
$166.25 MSRP: $242.00
You Save: $75.75 (32%)
ADD TO CART
Product Specifications
- Other Name: Transmission Oil Cooler Line; Inlet Tube; Line; Hoses
Fits the following Lincoln Models:
- Corsair | 2021-2023 | Grand Touring | 4 Cyl 2.5 L PLUG-IN HYBRID EV-GAS (PHEV)
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Lincoln Cooler Pipe
Part Number: HD9Z-7C410-A
$75.19 MSRP: $109.45
You Save: $34.26 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Tube - Oil Cooler; Transmission Oil Cooler Line
Fits the following Lincoln Models:
- Continental | 2017-2020 | Black Label, Reserve, Select | 6 Cyl 2.7 L GAS
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Lincoln Inlet Pipe
Part Number: DG9Z-7R081-H
$146.12 MSRP: $225.50
You Save: $79.38 (36%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Tube Assembly; Automatic Transmission Oil Cooler Hose Assembly; Transmission Oil Cooler Line; Cooler Pipe
- Replaces: DG9Z-7R081-B
Fits the following Lincoln Models:
- MKZ | 2013-2016 | Base, Black Label | 4 Cyl 2.0 L GAS
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Lincoln Hose Assembly
Part Number: HD9Z-7R081-B
$134.77 MSRP: $196.17
You Save: $61.40 (32%)
Product Specifications
- Other Name: Tube Assembly; Automatic Transmission Oil Cooler Hose Assembly; Inlet Tube; Outlet Tube
Fits the following Lincoln Models:
- Continental | 2017-2020 | 80th Anniversary Coach Door Edition, Black Label, Coach Door Edition, Reserve, Select | 6 Cyl 2.7 L GAS, 6 Cyl 3.0 L GAS
- MKZ | 2017-2020 | Black Label, Reserve, Reserve II, Select | 6 Cyl 3.0 L GAS
View related parts
Lincoln Tube Assembly
Part Number: GD9Z-7R081-A
$283.41 MSRP: $416.17
You Save: $132.76 (32%)
Product Specifications
- Other Name: Transmission Oil Cooler Line
Fits the following Lincoln Models:
- Continental | 2017-2020 | Base, Livery, Premiere, Select | 6 Cyl 3.7 L GAS
View related parts
Lincoln Tube Assembly
Part Number: HD9Z-7R081-E
$268.43 MSRP: $394.17
You Save: $125.74 (32%)
Product Specifications
- Other Name: Automatic Transmission Oil Cooler Hose Assembly; Transmission Oil Cooler Line; Cooler Pipe
- Replaces: HD9Z-7R081-D
Fits the following Lincoln Models:
- Continental | 2017-2020 | Black Label, Reserve, Select | 6 Cyl 2.7 L GAS
View related parts
Lincoln Cooler Pipe
Part Number: L1MZ-7R081-E
$173.81 MSRP: $253.00
You Save: $79.19 (32%)
Product Specifications
- Other Name: Tube Assembly; Transmission Oil Cooler Line; Line
Fits the following Lincoln Models:
- Aviator | 2020-2023 | Base, Black Label, Black Label Grand Touring, Grand Touring, Livery, Reserve | 6 Cyl 3.0 L GAS, 6 Cyl 3.0 L PLUG-IN HYBRID EV-GAS (PHEV)

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Lincoln Automatic Transmission Oil Cooler Line Parts Questions & Experts Answers

Oil Tube
6W1Z-7A030-C
Q: How to service and repair the Automatic Transmission Oil Cooler Line for the 4R70E/4R75E on Lincoln Town Car?
A: The first step to handle 4R70E/4R75E transmission fluid cooler tube maintenance requires hoisting the vehicle in NEUTRAL position. The cooling system requires complete clean-out of metal particles and clutch material because these substances cause transmission failure to happen again. The Thermostatic Bypass Valve in Oil-To-Air (OTA) transmission fluid coolers makes them non-repairable products so replacement with new OTA transmission fluid coolers is required when the component shows either leakage or substantial wear. Use a suitable torque converter/fluid cooler cleaner to clean transmission fluid cooler tubes while creating a strong fluid flow before executing the following procedure. Weak or contaminated fluid flow will require replacement of the flush equipment filter. The transmission fluid cooler tubes should be detached from the OTA cooler for cleaning by installing two new rubber hoses to the transmission side of the steel tubes. A rubber hose must replace the OTA cooler before securing the tank pressure line onto the longest steel transmission fluid return tube with a tank return hose extending into the fluid tank reservoir. Activate the pump to allow transmission fluid circulation for 5 minutes with switching the pump ON and OFF to clear away contaminants. Turn off the pump while you remove the pressure hose from its connection with the return tube. Start by blowing out all remaining fluid from the transmission fluid cooler and its tubes through compressed air. Then reinstall the OTA cooler tubes by disconnecting the rubber return hose from the steel tube which remains. The coolers might still contain trapped contamination therefore replacing the OTA cooler with a new one will guarantee proper operation.