What is the purpose of the catalytic converter and how can you diagnose and repair a malfunctioning one on Ford Expedition?

A catalytic converter reduces pollutants in exhaust gas using a single-bed design and a three-way catalyst coated with platinum and rhodium. This reduces levels of nitrogen oxides, hydrocarbons, and carbon monoxide. If you suspect a malfunction, take your vehicle to a dealer or authorized facility for diagnosis and repair. Check the converter for leaks or damage when the vehicle is raised for servicing. If damaged, it should be replaced, requiring removal of the exhaust pipe assembly. This can be done at a dealer service department or muffler shop.

Genuine Ford Expedition Catalytic Converter

Cat. Converter

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38 Catalytic Converters found

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Ford Expedition Catalytic Converter Assembly
Part Number: FL1Z-5E212-C
- Other Name: Converter Assy; Catalytic Converter, Converter & Pipe
- Manufacturer Note: Damper Now Included With Converter Assembly Only
$862.40 MSRP: $1100.00
You Save: $237.60 (22%)

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Fits the following Vehicles:
2015-2017 Ford Expedition | 6 Cyl 3.5L GTDI | 4AT 4R75W, 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 6-Speed Automatic Transmission (6R75), 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Expedition Catalytic Converter Assembly
Part Number: 9L1Z-5E212-B
- Other Name: Converter Assy; Catalytic Converter, Converter & Pipe
- Position: Passenger Side
$938.70 MSRP: $1820.00
You Save: $881.30 (49%)

Add to Cart
More Info
Fits the following Vehicles:
2009-2014 Ford Expedition | 8 Cyl 5.4L | 4AT 4R75W, 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 6-Speed Automatic Transmission (6R75), 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Expedition Catalytic Converter Assembly
Part Number: 9L3Z-5E212-H
- Other Name: Converter Assy; Catalytic Converter
- Position: Driver Side
$1369.76 MSRP: $1747.14
You Save: $377.38 (22%)

Add to Cart
More Info
Fits the following Vehicles:
2009 Ford Expedition | 8 Cyl 5.4L | 4AT 4R75W, 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 6-Speed Automatic Transmission (6R75), 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Expedition Catalytic Converter Assembly
Part Number: FL1Z-5E212-A
- Other Name: Converter Assy; Catalytic Converter, Converter & Pipe
$570.65 MSRP: $721.43
You Save: $150.78 (21%)

Add to Cart
More Info
Fits the following Vehicles:
2015-2017 Ford Expedition | 6 Cyl 3.5L GTDI | 4AT 4R75W, 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 6-Speed Automatic Transmission (6R75), 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Expedition Catalytic Converter Assembly
Part Number: AL1Z-5E212-C
- Other Name: Converter Assy; Catalytic Converter
- Position: Driver Side
$805.28 MSRP: $1027.14
You Save: $221.86 (22%)

Add to Cart
More Info
Fits the following Vehicles:
2010-2014 Ford Expedition | 8 Cyl 5.4L | 4AT 4R75W, 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 6-Speed Automatic Transmission (6R75), 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Expedition Catalytic Converter Assembly
Part Number: JL7Z-5E212-A
- Other Name: Converter Asy
- Replaced by: JL7Z-5E212-R
$693.69 MSRP: $780.00
You Save: $86.31 (12%)

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More Info
Fits the following Vehicles:
2018-2019 Ford Expedition | 6 Cyl 3.5L GTDI | 10-Speed Automatic Transmission (10R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Expedition Catalytic Converter Assembly
Part Number: AL1Z-5E212-D
- Other Name: Converter Assy; Catalytic Converter
- Position: Passenger Side
$935.20 MSRP: $1192.86
You Save: $257.66 (22%)

Add to Cart
More Info
Fits the following Vehicles:
2010-2014 Ford Expedition | 8 Cyl 5.4L | 4AT 4R75W, 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 6-Speed Automatic Transmission (6R75), 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Expedition Catalytic Converter Assembly
Part Number: GL7Z-5E212-A
- Other Name: Converter Assy
- Replaces: FL1Z-5E212-B
$1002.40 MSRP: $1278.57
You Save: $276.17 (22%)

Add to Cart
More Info
Fits the following Vehicles:
2015-2017 Ford Expedition | 6 Cyl 3.5L GTDI | 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 4AT 4R75W, 6-Speed Automatic Transmission (6R75), 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info
View related parts
Ford Expedition Catalytic Converter Assembly
Part Number: GL7Z-5E212-B
- Other Name: Converter Assy
- Manufacturer Note: Damper Now Included With Converter Assembly Only
- Replaces: FL1Z-5E212-D
$1093.12 MSRP: $1394.29
You Save: $301.17 (22%)

Add to Cart
More Info
Fits the following Vehicles:
2015-2017 Ford Expedition | 6 Cyl 3.5L GTDI | 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 4AT 4R75W, 6-Speed Automatic Transmission (6R75), 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info
View related parts
Ford Expedition Catalytic Converter Assembly
Part Number: AL1Z-5E212-B
- Other Name: Converter Assy; Catalytic Converter, Converter & Pipe
- Position: Driver Side
$1382.08 MSRP: $1762.86
You Save: $380.78 (22%)

Add to Cart
More Info
Fits the following Vehicles:
2010-2014 Ford Expedition | 8 Cyl 5.4L | 4AT 4R75W, 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 6-Speed Automatic Transmission (6R75), 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info
View related parts
Ford Expedition Catalytic Converter Assembly
Part Number: JL1Z-5E212-A
- Other Name: Converter Asy
- Replaced by: JL1Z-5E212-G
$1376.48 MSRP: $1755.71
You Save: $379.23 (22%)

Add to Cart
More Info
Fits the following Vehicles:
2018-2019 Ford Expedition | 6 Cyl 3.5L GTDI | 10-Speed Automatic Transmission (10R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info
View related parts
Ford Expedition Catalytic Converter Assembly
Part Number: JL1Z-5E212-B
- Other Name: Converter Asy
- Replaced by: JL1Z-5E212-H
$1201.76 MSRP: $1532.86
You Save: $331.10 (22%)

Add to Cart
More Info
Fits the following Vehicles:
2018-2019 Ford Expedition | 6 Cyl 3.5L GTDI | 10-Speed Automatic Transmission (10R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info
View related parts
Ford Expedition Catalytic Converter Assembly
Part Number: FL1Z-5E212-B
- Other Name: Converter Assy
- Replaced by: GL7Z-5E212-A
$1002.40 MSRP: $1278.57
You Save: $276.17 (22%)

Add to Cart
More Info
Fits the following Vehicles:
2015 Ford Expedition | 6 Cyl 3.5L GTDI | 4AT 4R75W, 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 6-Speed Automatic Transmission (6R75), 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info
View related parts
Ford Expedition Catalytic Converter Assembly
Part Number: FL1Z-5E212-D
- Other Name: Converter Assy
- Manufacturer Note: Damper Now Included With Converter Assembly Only
- Replaced by: GL7Z-5E212-B
$1093.12 MSRP: $1394.29
You Save: $301.17 (22%)

Add to Cart
More Info
Fits the following Vehicles:
2015 Ford Expedition | 6 Cyl 3.5L GTDI | 4AT 4R75W, 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 6-Speed Automatic Transmission (6R75), 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info
View related parts
Ford Expedition Catalytic Converter Assembly
Part Number: JL7Z-5E212-B
- Other Name: Converter Asy
- Replaced by: JL7Z-5E212-X
$908.32 MSRP: $1158.57
You Save: $250.25 (22%)

Add to Cart
More Info
Fits the following Vehicles:
2018-2019 Ford Expedition | 6 Cyl 3.5L GTDI | 10-Speed Automatic Transmission (10R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info
View related parts
Ford Expedition Catalytic Converter Assembly
Part Number: 8L1Z-5E212-A
- Other Name: Converter Assy; Catalytic Converter, Converter & Pipe
- Position: Driver Side
More Info
Fits the following Vehicles:
2008 Ford Expedition | 8 Cyl 5.4L | 4AT 4R75W, 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 6-Speed Automatic Transmission (6R75), 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info
View related parts
Ford Expedition Catalytic Converter Assembly
Part Number: 9L1Z-5E212-A
- Other Name: Converter Assy; Catalytic Converter, Converter & Pipe
- Position: Passenger Side
More Info
Fits the following Vehicles:
2009-2010 Ford Expedition | 8 Cyl 5.4L | 4AT 4R75W, 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 6-Speed Automatic Transmission (6R75), 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info
View related parts
Ford Expedition Catalytic Converter Assembly
Part Number: 2L1Z-5E212-CA
- Other Name: Converter Assy; Catalytic Converter, Converter
- Manufacturer Note: WAS
- Position: Driver Side
$0.00
More Info
Fits the following Vehicles:
2003 Ford Expedition | 8 Cyl 5.4L Modular SOHC | 4AT 4R75W, 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 6-Speed Automatic Transmission (6R75), 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info
View related parts
Ford Expedition Catalytic Converter Assembly
Part Number: 6L1Z-5E212-A
- Other Name: Converter Assy; Catalytic Converter, Converter
- Manufacturer Note: STP
- Position: Driver Side
More Info
Fits the following Vehicles:
2006 Ford Expedition | 8 Cyl 5.4L | 4AT 4R75W, 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 6-Speed Automatic Transmission (6R75), 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info
View related parts
Ford Expedition Catalytic Converter Assembly
Part Number: 2L1Z-5E212-AA
- Other Name: Converter Assy; Catalytic Converter, Converter
- Manufacturer Note: NIT
- Position: Driver Side
More Info
Fits the following Vehicles:
2003 Ford Expedition | 8 Cyl 4.6L Romeo SOHC EFI | 4AT 4R75W, 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 6-Speed Automatic Transmission (6R75), 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Expedition Catalytic Converter Parts Questions & Answers

Catalytic Converter Assembly
4L1Z-5E212-BA
Q: What is the purpose of the catalytic converter and how can you diagnose and repair a malfunctioning one on Ford Expedition?
A: A catalytic converter reduces pollutants in exhaust gas using a single-bed design and a three-way catalyst coated with platinum and rhodium. This reduces levels of nitrogen oxides, hydrocarbons, and carbon monoxide. If you suspect a malfunction, take your vehicle to a dealer or authorized facility for diagnosis and repair. Check the converter for leaks or damage when the vehicle is raised for servicing. If damaged, it should be replaced, requiring removal of the exhaust pipe assembly. This can be done at a dealer service department or muffler shop.