How to replace the front exhaust pipe on a V6 on Buick LaCrosse?

The first step to replace an exhaust front pipe on a v6 requires disconnecting two heated oxygen sensors which are after the right catalytic converters. First remove the front exhaust nuts from the rear muffler pipe before taking out the right Catalytic Converter nuts with its gasket and finally remove the left Catalytic Converter nuts with its gasket. In fwd vehicles remove the hanger at the front Exhaust Pipe position on the insulator however awd vehicles need the removal of insulator bracket bolts. The upper bracket bolt needs removal before lowering the exhaust. After rotating the bracket you should remove the insulator nut. To complete this task use a forward movement to take off the bracket before lowering the front Exhaust Pipe carefully. The front Exhaust Pipe hanger must be installed into the insulator when performing installation on a vehicle with fwd functions. The awd bracket installation requires placing it on the insulator before tightening the nut to 32 nm (24 lb ft). Fit the bracket bolts and onto the floor panel bar and secure them at 42 nm (31 lb ft). Outside front Exhaust Pipe nuts along with gasket need installation onto rear muffler pipe until reaching 18 nm (13 lb ft) torque. Install the nuts of the front Exhaust Pipe to the lower right Catalytic Converter before tightening them to 50 nm (37 lb ft) and follow the same process for the lower left Catalytic Converter. The final step includes attaching heating oxygen sensors followed by checking for exhaust system leakages.

OEM Buick LaCrosse Exhaust Pipe

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26 Exhaust Pipes found

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Buick LaCrosse Muffler & Pipe
Part Number: 15894106
$918.28 MSRP: $1379.08
You Save: $460.80 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Muffler, Exhaust; Exhaust Pipe; Muffler
- Replaced by: 19434064
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2008 Buick LaCrosse | CXS | 6 Cyl 3.6 L GAS
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Buick LaCrosse Front Pipe
Part Number: 84512274
$662.67 MSRP: $995.00
You Save: $332.33 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pipe, Exhaust Pipe
- Replaces: 84233241
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2019 Buick LaCrosse | Avenir, Essence, Preferred, Premium, Sport Touring | 6 Cyl 3.6 L GAS
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Buick LaCrosse Exhaust Pipe
Part Number: 84512275
$801.84 MSRP: $1236.46
You Save: $434.62 (36%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pipe, Exhaust Pipe; Front Pipe
- Replaces: 84262664
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2019 Buick LaCrosse | Avenir, Essence, Preferred, Premium, Sport Touring | 6 Cyl 3.6 L GAS
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Buick LaCrosse Catalytic Converter
Part Number: 19419593
$800.82 MSRP: $1189.82
You Save: $389.00 (33%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Front Manifold Pipe) "Kit"; Exhaust Manifold; Preconverter; Converter, Catalytic Converter
- Replaces: 20965402
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2012-2016 Buick LaCrosse | Base, Convenience, Leather, Premium, Sport Touring, Touring | 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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Buick LaCrosse Converter & Pipe, Rear
Part Number: 19418933
$999.97 MSRP: $1488.85
You Save: $488.88 (33%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Rear Manifold Pipe) "Kit"; Converter, Catalytic Converter
- Position: Rear
- Replaces: 20893999, 20907414, 20805599
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010 Buick LaCrosse | CX, CXL | 6 Cyl 3.0 L GAS
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Buick LaCrosse Crossover Pipe
Part Number: 12569055
$194.20 MSRP: $290.34
You Save: $96.14 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pipe, Exhaust Pipe; Cross Over Pipe; Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2009 Buick LaCrosse | Super | 8 Cyl 5.3 L GAS
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Buick LaCrosse Crossover Pipe
Part Number: 12597679
$342.22 MSRP: $511.64
You Save: $169.42 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pipe, Exhaust Pipe; Cross Over Pipe; Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2009 Buick LaCrosse | CX, CXL | 6 Cyl 3.8 L GAS
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Buick LaCrosse Front Pipe
Part Number: 84325056
$159.23 MSRP: $238.06
You Save: $78.83 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pipe, Exhaust Pipe; Exhaust Pipe
- Position: Front
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2019 Buick LaCrosse | Base, Essence, Preferred, Premium | 4 Cyl 2.5 L MILD HYBRID EV-GAS (MHEV)
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Buick LaCrosse Front Pipe
Part Number: 84262663
$851.56 MSRP: $1278.62
You Save: $427.06 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pipe, Exhaust Pipe; Exhaust Pipe
- Position: Front
- Replaces: 84043291, 84233239
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017 Buick LaCrosse | Base, Essence, Preferred, Premium | 6 Cyl 3.6 L GAS
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Buick LaCrosse Cross Over
Part Number: 24503125
$437.51 MSRP: $654.11
You Save: $216.60 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pipe, Exhaust Pipe; Crossover Pipe; Front Pipe; Cross Over Pipe; Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2009 Buick LaCrosse | CX, CXL | 6 Cyl 3.8 L GAS
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Buick LaCrosse Front Pipe
Part Number: 22935310
$1146.03 MSRP: $1708.15
You Save: $562.12 (33%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pipe, Exhaust Pipe; Exhaust Pipe
- Position: Front
- Replaces: 22737850
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2013-2016 Buick LaCrosse | Base, Leather, Premium, Sport Touring, Touring | 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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Buick LaCrosse Catalytic Converter, Rear
Part Number: 19418940
$1343.11 MSRP: $2004.07
You Save: $660.96 (33%)
ADD TO CART
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Rear Manifold Pipe) "Kit"; Converter & Pipe; Converter; Preconverter; Converter, Catalytic Converter
- Position: Rear
- Replaces: 22794842, 25886008, 20931546
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2016 Buick LaCrosse | Base, Convenience, CX, CXL, Leather, Premium | 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
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Buick LaCrosse Front Pipe
Part Number: 22935311
$1282.89 MSRP: $1913.64
You Save: $630.75 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pipe, Exhaust Pipe; Exhaust Pipe
- Position: Front
- Replaces: 22737851
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2013-2016 Buick LaCrosse | Base, Leather, Premium, Sport Touring, Touring | 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
View related parts
Buick LaCrosse Front Pipe
Part Number: 22935121
$968.05 MSRP: $1440.92
You Save: $472.87 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pipe, Exhaust Pipe; Exhaust Pipe
- Position: Front
- Replaces: 13229529, 20960849, 20912670, 20973114
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2011-2016 Buick LaCrosse | Base, Convenience, CX, CXL, Leather, Premium | 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
View related parts
Buick LaCrosse Exhaust Pipe
Part Number: 84233240
$801.84 MSRP: $1236.46
You Save: $434.62 (36%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pipe, Exhaust Pipe; Front Pipe
- Position: Front
- Replaced by: 84512275
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018 Buick LaCrosse | Avenir, Premium | 6 Cyl 3.6 L GAS
View related parts
Buick LaCrosse Crossover Pipe
Part Number: 15218551
Product Specifications
- Other Name: Pipe-Exhaust Manifold; Exhaust Pipe; Cross Over Pipe; Pipe, Exhaust Pipe
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2008 Buick LaCrosse | CXS | 6 Cyl 3.6 L GAS
View related parts
Buick LaCrosse Muffler & Pipe
Part Number: 15894108
Product Specifications
- Other Name: Muffler, Exhaust; Direct-Fit Exhaust; Exhaust System Kit; Exhaust Pipe; Muffler
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2009 Buick LaCrosse | CX, CXL | 6 Cyl 3.8 L GAS
View related parts
Buick LaCrosse Muffler & Pipe
Part Number: 25808149
Product Specifications
- Other Name: Muffler, Exhaust; Exhaust Pipe; Muffler
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2009 Buick LaCrosse | Super | 8 Cyl 5.3 L GAS
View related parts
Buick LaCrosse Catalytic Converter, Rear
Part Number: 19418936
$757.65 MSRP: $1125.00
You Save: $367.35 (33%)
Product Specifications
- Other Name: Converter Assembly, 3Way Catalytic (W/Exhaust Rear Manifold Pipe) "Kit"; Converter & Pipe; Converter, Catalytic Converter
- Position: Rear
- Replaces: 20907468, 20893984, 25798282
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2011 Buick LaCrosse | CX, CXL, CXS | 6 Cyl 3.6 L GAS
View related parts
Buick LaCrosse Front Pipe
Part Number: 19420103
$644.79 MSRP: $965.00
You Save: $320.21 (34%)
Product Specifications
- Other Name: Pipe Assembly, Exhaust Front "Kit"; Exhaust Pipe; Pipe, Exhaust Pipe
- Replaces: 13229534, 13268587, 20960841, 22935316, 20907476
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2012 Buick LaCrosse | Base, Convenience, CX, CXL, CXS, Leather, Premium, Touring | 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS

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Buick LaCrosse Exhaust Pipe

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Buick LaCrosse Exhaust Pipe Parts Questions & Experts Answers

Front Pipe
20907480
Q: How to replace the front exhaust pipe on a V6 on Buick LaCrosse?
A: The first step to replace an exhaust front pipe on a v6 requires disconnecting two heated oxygen sensors which are after the right Catalytic Converters. First remove the front exhaust nuts from the rear muffler pipe before taking out the right Catalytic Converter nuts with its gasket and finally remove the left Catalytic Converter nuts with its gasket. In fwd vehicles remove the hanger at the front Exhaust Pipe position on the insulator however awd vehicles need the removal of insulator bracket bolts. The upper bracket bolt needs removal before lowering the exhaust. After rotating the bracket you should remove the insulator nut. To complete this task use a forward movement to take off the bracket before lowering the front Exhaust Pipe carefully. The front Exhaust Pipe hanger must be installed into the insulator when performing installation on a vehicle with fwd functions. The awd bracket installation requires placing it on the insulator before tightening the nut to 32 nm (24 lb ft). Fit the bracket bolts and onto the floor panel bar and secure them at 42 nm (31 lb ft). Outside front Exhaust Pipe nuts along with gasket need installation onto rear muffler pipe until reaching 18 nm (13 lb ft) torque. Install the nuts of the front Exhaust Pipe to the lower right Catalytic Converter before tightening them to 50 nm (37 lb ft) and follow the same process for the lower left Catalytic Converter. The final step includes attaching heating oxygen sensors followed by checking for exhaust system leakages.

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