How to replace a muffler on Buick LaCrosse?

The first step for Muffler replacement requires you to lift the vehicle and place support under it. First support the exhaust system and afterwards you can remove the Catalytic Converter bolts with its accompanying gasket. Remove the Muffler support from its attachment by first disengaging the exhaust hanger insulators. Position the Muffler onto the support and mount the exhaust hanger insulators. After applying the Catalytic Converter gasket, tighten the bolts securing the Catalytic Converter to 45 nm (33 ft. Lbs.) follow the inspection by taking off the exhaust support then check for system leaks and underbody contact before lowering the vehicle.

OEM Buick LaCrosse Muffler

Exhaust Muffler

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14 Mufflers 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 Muffler & Pipe
Part Number: 84283172
$215.74 MSRP: $322.55
You Save: $106.81 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Muffler, Exhaust; Exhaust Pipe; Muffler
- Replaces: 84028874
- 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 Muffler & Pipe
Part Number: 84282479
$919.25 MSRP: $1380.53
You Save: $461.28 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Muffler, Exhaust; Exhaust Pipe; Muffler
- Replaces: 84026848
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017-2019 Buick LaCrosse | Avenir, Base, Essence, Preferred, Premium, Sport Touring | 6 Cyl 3.6 L GAS
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Buick LaCrosse Muffler & Pipe
Part Number: 84282476
$926.85 MSRP: $1391.95
You Save: $465.10 (34%)
ADD TO CART
Product Specifications
- Other Name: Muffler, Exhaust; Exhaust Pipe; Muffler
- Replaces: 84026849
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017-2019 Buick LaCrosse | Avenir, Base, Essence, Preferred, Premium, Sport Touring | 6 Cyl 3.6 L GAS
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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
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Buick LaCrosse Muffler & Pipe
Part Number: 23416465
Product Specifications
- Other Name: Muffler, Exhaust; Exhaust Pipe; Muffler
- Replaces: 13325836, 23346423, 22931692
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2012-2016 Buick LaCrosse | Base, Convenience, Leather, Premium | 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
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Buick LaCrosse Muffler & Pipe
Part Number: 23416464
Product Specifications
- Other Name: Muffler, Exhaust; Exhaust Pipe; Muffler
- Replaces: 22931689, 23346421
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2016 Buick LaCrosse | Base, Leather, Premium, Sport Touring | 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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Buick LaCrosse Muffler & Pipe
Part Number: 23416463
Product Specifications
- Other Name: Muffler, Exhaust; Exhaust Pipe; Muffler
- Replaces: 22931690, 23346422
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2016 Buick LaCrosse | Base, Leather, Premium, Sport Touring | 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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Buick LaCrosse Vapor Canister
Part Number: 23412414
Product Specifications
- Other Name: Muffler, Exhaust Muffler/Resonator; Muffler & Pipe; Muffler
- Position: Rear
- Replaces: 20907483, 22774270, 13229571, 22779749, 22931704, 13317985
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2013 Buick LaCrosse | Base, Convenience, CX, CXL, CXS, Leather, Premium, Touring | 4 Cyl 2.4 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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Buick LaCrosse Muffler & Pipe
Part Number: 23412413
Product Specifications
- Other Name: Muffler, Exhaust Muffler/Resonator; Exhaust Pipe; Muffler
- Position: Rear
- Replaces: 22931703, 22906821, 22759746
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2012-2013 Buick LaCrosse | Base, Convenience, Leather, Premium, Touring | 6 Cyl 3.6 L FLEX
View related parts
Buick LaCrosse Muffler & Pipe
Part Number: 23412412
Product Specifications
- Other Name: Muffler, Exhaust Muffler/Resonator; Exhaust Pipe; Muffler
- Position: Rear
- Replaces: 13317984, 22779748, 13229561, 22774269, 20907481
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2011 Buick LaCrosse | CX, CXL | 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L GAS
View related parts
Buick LaCrosse Muffler & Pipe
Part Number: 23412411
Product Specifications
- Other Name: Muffler, Exhaust Muffler/Resonator; Exhaust Pipe; Muffler
- Position: Rear
- Replaces: 20905404
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2011 Buick LaCrosse | CX, CXL | 4 Cyl 2.4 L GAS
View related parts
Buick LaCrosse Muffler & Pipe
Part Number: 23412410
Product Specifications
- Other Name: Muffler, Exhaust; Exhaust Pipe; Muffler
- Replaces: 13229567
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2011 Buick LaCrosse | CX, CXL | 6 Cyl 3.0 L GAS, 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

Buick LaCrosse Muffler

Our website offers an extensive catalog of genuine Buick LaCrosse Muffler at unbeatable prices. Every OEM Buick LaCrosse Muffler comes with a manufacturer's warranty, an easy return policy, and rapid delivery service. Don't miss out on this great opportunity!

Buick LaCrosse Muffler Parts Questions & Experts Answers

Muffler & Pipe
15894106
Q: How to replace a muffler on Buick LaCrosse?
A: The first step for Muffler replacement requires you to lift the vehicle and place support under it. First support the exhaust system and afterwards you can remove the Catalytic Converter bolts with its accompanying gasket. Remove the Muffler support from its attachment by first disengaging the exhaust hanger insulators. Position the Muffler onto the support and mount the exhaust hanger insulators. After applying the Catalytic Converter gasket, tighten the bolts securing the Catalytic Converter to 45 nm (33 ft. Lbs.) follow the inspection by taking off the exhaust support then check for system leaks and underbody contact before lowering the vehicle.

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