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2011 Chevrolet Avalanche
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Exhaust Manifolds, Pipes & Mufflers
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OEM (Genuine) 2011 Chevrolet Avalanche Converter & Pipe
PartNumber: 20854453
Product Specifications- Notes: Federal, 5.3 & 6.0 Liter
- Other Names: Catalytic Converter, Converter & Pipe
- Item Dimensions: 51.2 x 29.9 x 14.2 inches
- Item Weight: 35.50 Pounds
- Fitment Type: Direct Replacement
- Replaced by: 19418926
- Part Description: 2011 Chevrolet Avalanche Converter & Pipe
Vehicle Fitment- 2011 Chevrolet Avalanche | Black Diamond LS, Black Diamond LT, Black Diamond LTZ, LS, LT, LTZ | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
$1724.84 MSRP:$2690.39You Save: $965.55 (36%)
OEM (Genuine) 2011 Chevrolet Avalanche Catalytic Converter
PartNumber: 20854454
Product Specifications- Notes: Avalanche; California
- Other Names: Catalytic Converter
- Item Dimensions: 45.3 x 29.9 x 14.4 inches
- Item Weight: 37.40 Pounds
- Replaced by: 19418941
- Part Description: 2011 Chevrolet Avalanche Catalytic Converter
Vehicle Fitment- 2011 Chevrolet Avalanche | Black Diamond LS, Black Diamond LT, Black Diamond LTZ, LS, LT, LTZ | 8 Cyl 5.3 L FLEX
$2125.29 MSRP:$3192.92You Save: $1067.63 (34%)
OEM (Genuine) 2011 Chevrolet Avalanche Converter & Pipe
PartNumber: 19418941
Product Specifications- Notes: California, 5.3 & 6.0 Liter
- Other Names: Catalytic Converter, Converter & Pipe
- Fitment Type: Direct Replacement
- Replaces: 20854454, 15905948
- Part Description: 2011 Chevrolet Avalanche Converter & Pipe
Vehicle Fitment- 2011 Chevrolet Avalanche | Black Diamond LS, Black Diamond LT, Black Diamond LTZ, LS, LT, LTZ | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
$2125.29 MSRP:$3192.92You Save: $1067.63 (34%)
OEM (Genuine) 2011 Chevrolet Avalanche Muffler & Pipe
PartNumber: 20882404
Product Specifications- Notes: 5.3 Liter
- Other Names: Muffler, Muffler & Pipe
- Item Dimensions: 115.3 x 28.6 x 15.1 inches
- Item Weight: 231.60 Pounds
- Fitment Type: Direct Replacement
- Replaces: 20779912, 25940547
- Part Description: 2011 Chevrolet Avalanche Muffler & Pipe
Vehicle Fitment- 2011 Chevrolet Avalanche | Black Diamond LS, Black Diamond LT, Black Diamond LTZ, LS, LT, LTZ | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
$888.37 MSRP:$1340.20You Save: $451.83 (34%)
FAQ for Exhaust Pipe Repair
Q: How do you fix a muffler buzz?
A:
Raise and support the vehicle, mark the position of the heat shield and straps, cut and remove the heat shield straps, position the heat shield to the muffler and install new heat shield straps on the muffler shell in the positions marked, position the strap screw heads and cut off excess strap material.
By Bob
GM Specialist
09/12/2021Q: What causes the Pinging/popping/snapping noise from the exhaust system?
A:
The pinging/popping/snapping noise is due to the exhaust system cooling down and is normal for this exhaust system.
By Bob
GM Specialist
01/12/2021