How to replace a catalytic converter on GMC Savana 3500?

Vehicle elevation and transmission support must be removed before proceeding with a Catalytic Converter replacement. The technical process starts with disconnecting both oxygen sensors (02S) along with heated Oxygen Sensor (H02S) from the wiring harness using protective goggles and gloves. One Catalytic Converter replacement requires both valves active so a secondary converter needs removal unless replacing both converters simultaneously. The removal of both units becomes necessary when replacing the left Catalytic Converter. The next step requires removal of all nuts and seals which attach the Catalytic Converter pipes to exhaust manifolds. Nonetheless, single Catalytic Converter pipes require removing two retaining nuts that lead to two-bolt or three-bolt flange configurations. Lift the Catalytic Converter pipe flange gasket before removing the pipe from the vehicle. When your vehicle has two Catalytic Converter pipes you must first loosen the front Muffler clamp securing the right catalyst before taking out that pipe from the Muffler unit. After untightening the left Catalytic Converter pipe retaining nuts and gasket from the Muffler flange connection you must remove the left Catalytic Converter pipe. Catalytic Converter replacement requires that you remove all necessary oxygen sensors from the system. Install the oxygen sensors according to the original protocol but only proceed when removal was necessary. When using the dual installation method install the left Catalytic Converter with its gasket to the Muffler flange before tightening the left Catalytic Converter nuts to the Muffler. After installing the right Catalytic Converter inside the Muffler use the clamp to fasten it down but do not apply any torque. A standalone Catalytic Converter pipe needs fresh gasket installation between the Muffler flange while avoiding flange nut tightening. Place a new seal onto the exhaust manifolds before installing the Catalytic Converter pipes and then tighten the retaining nuts to 65 nm (48 ft. Lbs.). Apply proper exhaust alignment while tightening right Catalytic Converter clamps to 54 nm (40 ft. Lbs.) and natur stall nuts on the Catalytic Converter-muffler connection to 48 nm (35 ft. Lbs.). After reattaching the Oxygen Sensor (02S) electrical connection and reinstalling the transmission support check that the exhaust system shows proper clearance and all components achieve proper alignment before lowering the vehicle.

OEM GMC Savana 3500 Catalytic Converter

Cat. Converter

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45 Catalytic Converters found

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GMC Savana 3500 Catalytic Converter, Passenger Side
Part Number: 15853441
$2121.36 MSRP: $3211.55
You Save: $1090.19 (34%)
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
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2010 GMC Savana 3500 | 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
GMC Savana 3500 Catalytic Converter, Driver Side
Part Number: 15853440
$2137.95 MSRP: $3412.13
You Save: $1274.18 (38%)
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
- Position: Driver Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2010 GMC Savana 3500 | 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
GMC Savana 3500 Catalytic Converter
Part Number: 19418962
$2171.88 MSRP: $3248.47
You Save: $1076.59 (34%)
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
- Replaces: 25839216, 20953444
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2011 GMC Savana 3500 | 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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GMC Savana 3500 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 GMC Savana 3500 | Base, LS, LT | 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L GAS
View related parts
GMC Savana 3500 Catalytic Converter
Part Number: 85577179
$1586.82 MSRP: $2370.00
You Save: $783.18 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter, Catalytic Converter; Converter & Pipe
- Replaces: 85166835, 84854615
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2024 GMC Savana 3500 | Base, LS, LT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS, 8 Cyl 6.6 L GAS
View related parts
GMC Savana 3500 Catalytic Converter
Part Number: 19418954
$1864.23 MSRP: $3001.50
You Save: $1137.27 (38%)
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 GMC Savana 3500 | Base, LS, LT, SLE | 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
GMC Savana 3500 Catalytic Converter
Part Number: 19420297
$2077.95 MSRP: $3107.43
You Save: $1029.48 (34%)
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 GMC Savana 3500 | 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
GMC Savana 3500 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 GMC Savana 3500 | Base, LS, LT, SLE | 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
GMC Savana 3500 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 GMC Savana 3500 | Base, SLE, SLT
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GMC Savana 3500 Catalytic Converter
Part Number: 19420268
$1739.28 MSRP: $2598.92
You Save: $859.64 (34%)
ADD TO CART
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 GMC Savana 3500 | Base, LS, LT | 8 Cyl 6.6 L DIESEL
View related parts
GMC Savana 3500 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 GMC Savana 3500 | 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
GMC Savana 3500 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 GMC Savana 3500 | Base, LS, LT | 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L GAS
View related parts
GMC Savana 3500 Catalytic Converter
Part Number: 85593477
$1480.26 MSRP: $2210.00
You Save: $729.74 (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 GMC Savana 3500 | Base, LS, LT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS
View related parts
GMC Savana 3500 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 GMC Savana 3500 | Base, LS, LT | 4 Cyl 2.8 L DIESEL
View related parts
GMC Savana 3500 Catalytic Converter, Driver Side
Part Number: 19418963
$980.69 MSRP: $1586.37
You Save: $605.68 (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 GMC Savana 3500 | Base, LS, LT, SLE | 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
GMC Savana 3500 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 GMC Savana 3500 | Base, LS, LT | 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L GAS
View related parts
GMC Savana 3500 Catalytic Converter
Part Number: 15053997
Product Specifications
- Other Name: Converter; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002 GMC Savana 3500 | Base, SLT
View related parts
GMC Savana 3500 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 GMC Savana 3500 | Base, SLT | 8 Cyl 6.5 L DIESEL
View related parts
GMC Savana 3500 Catalytic Converter
Part Number: 15070531
Product Specifications
- Other Name: Converter; Converter, Catalytic Converter; Converter, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002 GMC Savana 3500 | Base, SLT
View related parts
GMC Savana 3500 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 GMC Savana 3500 | Base, SLE

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GMC Savana 3500 Catalytic Converter

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GMC Savana 3500 Catalytic Converter Parts Questions & Experts Answers

Catalytic Converter
15747730
Q: How to replace a catalytic converter on GMC Savana 3500?
A: Vehicle elevation and transmission support must be removed before proceeding with a Catalytic Converter replacement. The technical process starts with disconnecting both Oxygen Sensors (02S) along with heated Oxygen Sensor (H02S) from the wiring harness using protective goggles and gloves. One Catalytic Converter replacement requires both valves active so a secondary converter needs removal unless replacing both converters simultaneously. The removal of both units becomes necessary when replacing the left Catalytic Converter. The next step requires removal of all nuts and seals which attach the Catalytic Converter pipes to Exhaust Manifolds. Nonetheless, single Catalytic Converter pipes require removing two retaining nuts that lead to two-bolt or three-bolt flange configurations. Lift the Catalytic Converter pipe flange gasket before removing the pipe from the vehicle. When your vehicle has two Catalytic Converter pipes you must first loosen the front Muffler clamp securing the right catalyst before taking out that pipe from the Muffler unit. After untightening the left Catalytic Converter pipe retaining nuts and gasket from the Muffler flange connection you must remove the left Catalytic Converter pipe. Catalytic Converter replacement requires that you remove all necessary oxygen sensors from the system. Install the oxygen sensors according to the original protocol but only proceed when removal was necessary. When using the dual installation method install the left Catalytic Converter with its gasket to the Muffler flange before tightening the left Catalytic Converter nuts to the Muffler. After installing the right Catalytic Converter inside the Muffler use the clamp to fasten it down but do not apply any torque. A standalone Catalytic Converter pipe needs fresh gasket installation between the Muffler flange while avoiding flange nut tightening. Place a new seal onto the exhaust manifolds before installing the Catalytic Converter pipes and then tighten the retaining nuts to 65 nm (48 ft. Lbs.). Apply proper exhaust alignment while tightening right Catalytic Converter clamps to 54 nm (40 ft. Lbs.) and natur stall nuts on the Catalytic Converter-muffler connection to 48 nm (35 ft. Lbs.). After reattaching the Oxygen Sensor (02S) electrical connection and reinstalling the transmission support check that the exhaust system shows proper clearance and all components achieve proper alignment before lowering the vehicle.