How to Replace a Catalytic Converter on a Dual Exhaust System (Left) on Chevrolet Express 2500?

To interchange the Catalytic Converter of a double exhaust system (Left), you have to lift your car and remove the oxygen sensors. Remove the Exhaust Hanger bolts and the hanger from the vehicle carefully, while maintaining safety when it comes to the exhaust service and protective gear. Then remove the nuts which hold the Exhaust Pipe flange to the Catalytic Converter pipe and the nuts which hold the Exhaust Pipe flange to the Muffler and a take out of the Exhaust Pipe and the flange gasket. For an installation process, remove oxygen sensors from the old Exhaust Pipe and install them into the new pipe, tightening it to 42 n.m (31 lb ft). Install new gaskets onto the Muffler flange and the Catalytic Converter pipe flange and install the Exhaust Pipe then secure in the Catalytic Converter pipe when installing the nuts onto the Exhaust Pipe in 48 n.m (35 lb ft) tightening nuts for the Catalytic Converter pipe to the Exhaust Pipe. Next, attach the nuts of the Muffler to the Exhaust Pipe with a tightness of 48 n.m (35 lb ft). Connect back the Oxygen Sensor connectors and install the Exhaust Hanger and bolts tightening the bolts to 17 n.m (13 lb ft). Finally, check the exhaust system for correct clearance and alignment of the components before lowering the vehicle.

OEM Chevrolet Express 2500 Catalytic Converter

Cat. Converter

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43 Catalytic Converters found

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Chevrolet Express 2500 Catalytic Converter, Passenger Side Part Number: 15853441
$2121.36 MSRP: $3211.55
You Save: $1090.19 (34%)
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Product Specifications
- Other Name: Converter Assembly-3Way Catalytic (W/Exhaust Manifold P; Exhaust Pipe; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2010 Chevrolet Express 2500 | Base, LS, LT | 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
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Chevrolet Express 2500 Catalytic Converter, Driver Side Part Number: 15853440
$2137.95 MSRP: $3412.13
You Save: $1274.18 (38%)
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Product Specifications
- Other Name: Converter Assembly-3Way Catalytic (W/Exhaust Manifold P; Exhaust Pipe; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Position: Driver Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2010 Chevrolet Express 2500 | Base, LS, LT | 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
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Chevrolet Express 2500 Catalytic Converter Part Number: 19418962
$2171.88 MSRP: $3248.47
You Save: $1076.59 (34%)
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Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Manifold Pipe) "Kit"; Exhaust Pipe; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Replaces: 25839216, 20953444
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2011 Chevrolet Express 2500 | Base, LS, LT | 8 Cyl 4.8 L FLEX, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX
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Chevrolet Express 2500 Catalytic Converter Part Number: 85577179
$1543.02 MSRP: $2517.57
You Save: $974.55 (39%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Converter, Catalytic Converter; Converter & Pipe
- Replaced by: 85720945
- Replaces: 85166835, 84854615
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2024 Chevrolet Express 2500 | Base, LS, LT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS, 8 Cyl 6.6 L GAS
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Chevrolet Express 2500 Catalytic Converter Part Number: 19420268
$1739.28 MSRP: $2598.92
You Save: $859.64 (34%)
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Product Specifications
- Other Name: Converter Assembly, Oxidation Catalytic; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Replaces: 22768282, 22893734, 22743692, 84451334
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2016 Chevrolet Express 2500 | Base | 8 Cyl 6.6 L DIESEL
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Chevrolet Express 2500 Catalytic Converter Part Number: 15128301
$1562.67 MSRP: $2333.73
You Save: $771.06 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Converter Assembly-3Way Catalytic (W/Exhaust Manifold P; Exhaust Pipe; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Replaces: 15204924
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2006 Chevrolet Express 2500 | Base, LS | 6 Cyl 4.3 L GAS, 8 Cyl 5.3 L GAS
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Chevrolet Express 2500 Catalytic Converter Part Number: 15747730
$1635.64 MSRP: $2443.30
You Save: $807.66 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter, Catalytic Converter; Exhaust Pipe; Converter & Pipe; Converter, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000-2002 Chevrolet Express 2500 | Base, LS
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Chevrolet Express 2500 Catalytic Converter Part Number: 19418954
$2023.66 MSRP: $3288.07
You Save: $1264.41 (39%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Manifold Pipe) "Kit"; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Replaces: 15853438, 20858260, 25758568, 15120812
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2010 Chevrolet Express 2500 | Base, LS, LT | 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
View related parts
Chevrolet Express 2500 Converter & Pipe, Passenger Side Part Number: 15853443
$2108.61 MSRP: $3153.47
You Save: $1044.86 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly-3Way Catalytic (W/Exhaust Manifold P; Catalytic Converter; Exhaust Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2008 Chevrolet Express 2500 | Base, LS, LT | 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L GAS
View related parts
Chevrolet Express 2500 Catalytic Converter, Passenger Side Part Number: 19420106
$1992.93 MSRP: $3818.25
You Save: $1825.32 (48%)
ADD TO CART
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Manifold Pipe) "Kit"; Exhaust Pipe; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Position: Passenger Side
- Replaces: 15853439, 20858261
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2010 Chevrolet Express 2500 | Base, LS, LT | 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
View related parts
Chevrolet Express 2500 Catalytic Converter Part Number: 19420297
$2035.26 MSRP: $3201.58
You Save: $1166.32 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly, Warm Up 3Way Catalytic (W/ Exhaust Pipe); Converter & Pipe; Converter, Catalytic Converter
- Replaces: 23269390, 25943820
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2012-2020 Chevrolet Express 2500 | Base, LS, LT | 8 Cyl 4.8 L FLEX, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
View related parts
Chevrolet Express 2500 Catalytic Converter Part Number: 84398056
$943.44 MSRP: $1403.97
You Save: $460.53 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly-Nitrogen Oxide Catalytic (W/Exhaust Pipe); Converter, Catalytic Converter
- Replaces: 84100801
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017-2020 Chevrolet Express 2500 | Base, LS, LT | 4 Cyl 2.8 L DIESEL
View related parts
Chevrolet Express 2500 Catalytic Converter Part Number: 85593477
$1812.15 MSRP: $2708.33
You Save: $896.18 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter & Pipe
- Replaces: 19420306, 84296974
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2020 Chevrolet Express 2500 | Base, LS, LT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS
View related parts
Chevrolet Express 2500 Catalytic Converter Part Number: 15152428
$898.08 MSRP: $1335.85
You Save: $437.77 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly-3Way Catalytic (W/Exhaust Manifold P; Exhaust Pipe; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1998-1999 Chevrolet Express 2500 | Base, LS
View related parts
Chevrolet Express 2500 Converter & Pipe, Driver Side Part Number: 15853442
$968.42 MSRP: $1441.47
You Save: $473.05 (33%)
ADD TO CART
Product Specifications
- Other Name: Converter Assembly-3Way Catalytic (W/Exhaust Manifold P; Catalytic Converter; Exhaust Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Position: Driver Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2008 Chevrolet Express 2500 | Base, LS, LT | 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L GAS
View related parts
Chevrolet Express 2500 Catalytic Converter Part Number: 15120814
$1837.24 MSRP: $2746.00
You Save: $908.76 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly-3Way Catalytic (W/Exhaust Manifold P; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2010 Chevrolet Express 2500 | Base, LS, LT | 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
View related parts
Chevrolet Express 2500 Catalytic Converter, Driver Side Part Number: 19418963
$1957.65 MSRP: $3180.37
You Save: $1222.72 (39%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Assembly, Catalytic (W/ Exhaust Manifold Pipe) "Kit"; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Position: Driver Side
- Replaces: 15853437, 25921611, 25758569
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2010 Chevrolet Express 2500 | Base, LS, LT | 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
View related parts
Chevrolet Express 2500 Catalytic Converter Part Number: 15084243
$1306.40 MSRP: $1948.94
You Save: $642.54 (33%)
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2007 Chevrolet Express 2500 | Base, LS, LT | 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L GAS
View related parts
Chevrolet Express 2500 Catalytic Converter, Driver Side Part Number: 15058469
Product Specifications
- Other Name: Converter; Exhaust Pipe; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Position: Driver Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2002 Chevrolet Express 2500 | Base, LS | 8 Cyl 6.5 L DIESEL
View related parts
Chevrolet Express 2500 Catalytic Converter Part Number: 15747731
Product Specifications
- Other Name: Converter; Exhaust Pipe; Converter & Pipe; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000 Chevrolet Express 2500 | Base, LS

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Chevrolet Express 2500 Catalytic Converter

Want to cut long-term maintenance and repair costs? Choose OEM Catalytic Converter. Those parts deliver top durability you can trust. On our site, you'll find a huge catalog of genuine Chevrolet Express 2500 parts. Prices are unbeatable, so you can keep more in your pocket. Every OEM Chevrolet Express 2500 Catalytic Converter includes a manufacturer's warranty. You can also get an easy return policy that keeps buying risk free. Fast delivery, get your car on the road quickly. It's simple to search, compare, and order. Stop guessing about quality or fit. Order today and save with parts that last.

Chevrolet Express 2500 Catalytic Converter Parts Questions & Experts Answers

Catalytic Converter, Driver Side
15853440
Q: How to Replace a Catalytic Converter on a Dual Exhaust System (Left) on Chevrolet Express 2500?
A:
To interchange the Catalytic Converter of a double exhaust system (Left), you have to lift your car and remove the Oxygen Sensors. Remove the Exhaust Hanger bolts and the hanger from the vehicle carefully, while maintaining safety when it comes to the exhaust service and protective gear. Then remove the nuts which hold the Exhaust Pipe flange to the Catalytic Converter pipe and the nuts which hold the Exhaust Pipe flange to the Muffler and a take out of the Exhaust Pipe and the flange gasket. For an installation process, remove oxygen sensors from the old Exhaust Pipe and install them into the new pipe, tightening it to 42 n.m (31 lb ft). Install new gaskets onto the Muffler flange and the Catalytic Converter pipe flange and install the Exhaust Pipe then secure in the Catalytic Converter pipe when installing the nuts onto the Exhaust Pipe in 48 n.m (35 lb ft) tightening nuts for the Catalytic Converter pipe to the Exhaust Pipe. Next, attach the nuts of the Muffler to the Exhaust Pipe with a tightness of 48 n.m (35 lb ft). Connect back the Oxygen Sensor connectors and install the Exhaust Hanger and bolts tightening the bolts to 17 n.m (13 lb ft). Finally, check the exhaust system for correct clearance and alignment of the components before lowering the vehicle.