How to replace the muffler on 6.0L, 6.6L, and 8.1L engines on 2006 GMC Sierra 3500?

To change the muffler of 6.0L, 6.6L, and 8.1L engines, elevate the car and prop it up. Take out the required elements, drop the rear axle and remove the muffler. Install new gasket, reattach muffler and tighten all parts. Lastly, take off supports and get the vehicle down.

OEM 2006 GMC Sierra 3500 Muffler

Exhaust Muffler

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24 Mufflers found

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2006 GMC Sierra 3500 Muffler Part Number: 15798957
$942.56 MSRP: $1402.65
You Save: $460.09 (33%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Exhaust & Tail Pipe & 3W; Muffler, Exhaust
- Replaces: 15147365, 15103204
- Item Weight: 79.60 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 15798957
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 GMC Sierra 3500 Submodels:
- Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
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2006 GMC Sierra 3500 Muffler Part Number: 15798961
$1071.28 MSRP: $1595.91
You Save: $524.63 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Exhaust & Tail Pipe & 3W; Muffler, Exhaust
- Item Weight: 59.30 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 15798961
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following 2006 GMC Sierra 3500 Submodels:
- Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
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2006 GMC Sierra 3500 Muffler Part Number: 15798946
$1007.38 MSRP: $1500.27
You Save: $492.89 (33%)
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Exhaust & Tail Pipe & 3W; Muffler, Exhaust
- Item Weight: 161.60 Pounds
- Item Dimensions: 144.9 x 45.5 x 23.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 15798946
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 GMC Sierra 3500 Submodels:
- Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
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2006 GMC Sierra 3500 Muffler Part Number: 19420118
$1051.07 MSRP: $1565.88
You Save: $514.81 (33%)
Product Specifications
- Other Name: Muffler Assembly, Exhaust (W/Exhaust & T/Pipe & 3Way Catalytic Converter) "Kit"; Exhaust Pipe; Muffler, Exhaust
- Replaces: 15147368, 15076107, 15199841, 15798960, 15113085
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 19420118
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following 2006 GMC Sierra 3500 Submodels:
- Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
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2006 GMC Sierra 3500 Muffler & Pipe Part Number: 15229357
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/ Exhaust Pipe & Tail Pipe); Muffler, Exhaust; Exhaust Pipe; Muffler
- Item Weight: 46.90 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 15229357
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following 2006 GMC Sierra 3500 Submodels:
- SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
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2006 GMC Sierra 3500 Muffler Part Number: 15229351
Product Specifications
- Other Name: Muffler, Exhaust
- Item Weight: 48.50 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 15229351
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following 2006 GMC Sierra 3500 Submodels:
- SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
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2006 GMC Sierra 3500 Muffler & Pipe Part Number: 15798941
Product Specifications
- Other Name: Muffler, Exhaust; Exhaust Pipe; Muffler
- Item Weight: 64.60 Pounds
- Item Dimensions: 136.0 x 25.9 x 16.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 15798941
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 GMC Sierra 3500 Submodels:
- SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS
View related parts
2006 GMC Sierra 3500 Muffler Part Number: 15229353
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/ Exhaust Pipe & Tail Pipe); Muffler, Exhaust
- Item Weight: 49.90 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 15229353
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following 2006 GMC Sierra 3500 Submodels:
- SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
View related parts
2006 GMC Sierra 3500 Muffler Part Number: 15229352
Product Specifications
- Other Name: Muffler, Exhaust
- Item Weight: 53.10 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 15229352
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following 2006 GMC Sierra 3500 Submodels:
- SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
View related parts
2006 GMC Sierra 3500 Muffler Part Number: 15798942
Product Specifications
- Other Name: Muffler, Exhaust
- Item Weight: 61.30 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 15798942
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following 2006 GMC Sierra 3500 Submodels:
- SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS
View related parts
2006 GMC Sierra 3500 Muffler & Pipe Part Number: 15229355
Product Specifications
- Other Name: Muffler, Exhaust; Exhaust Pipe; Muffler
- Item Weight: 38.90 Pounds
- Item Dimensions: 62.4 x 11.6 x 11.7 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 15229355
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 GMC Sierra 3500 Submodels:
- SL, SLE, WT | 8 Cyl 6.6 L DIESEL
View related parts
2006 GMC Sierra 3500 Muffler Part Number: 15229356
Product Specifications
- Other Name: Muffler, Exhaust
- Item Weight: 56.80 Pounds
- Item Dimensions: 122.4 x 33.0 x 16.7 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 15229356
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 GMC Sierra 3500 Submodels:
- SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
View related parts
2006 GMC Sierra 3500 Muffler Part Number: 15229358
Product Specifications
- Other Name: Muffler, Exhaust
- Item Weight: 56.80 Pounds
- Item Dimensions: 139.3 x 34.0 x 17.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 15229358
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 GMC Sierra 3500 Submodels:
- SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
View related parts
2006 GMC Sierra 3500 Muffler & Pipe Part Number: 15798952
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Exhaust & Tail Pipe & 3W; Exhaust Pipe; Muffler; Muffler, Exhaust
- Replaces: 15113070
- Item Weight: 78.10 Pounds
- Item Dimensions: 137.2 x 29.2 x 15.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 15798952
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 GMC Sierra 3500 Submodels:
- Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
View related parts
2006 GMC Sierra 3500 Muffler Part Number: 15798953
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Exhaust & Tail Pipe & 3W; Muffler, Exhaust
- Replaces: 15757990
- Item Weight: 74.90 Pounds
- Item Dimensions: 150.9 x 29.2 x 15.5 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 15798953
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 GMC Sierra 3500 Submodels:
- SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
View related parts
2006 GMC Sierra 3500 Muffler & Pipe Part Number: 15798949
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Exhaust & Tail Pipe & 3W; Exhaust Pipe; Muffler; Muffler, Exhaust
- Item Weight: 80.30 Pounds
- Item Dimensions: 140.4 x 31.2 x 17.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 15798949
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 GMC Sierra 3500 Submodels:
- Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
View related parts
2006 GMC Sierra 3500 Muffler Part Number: 15798951
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Exhaust & Tail Pipe & 3W; Muffler, Exhaust
- Replaces: 15077789, 15757987
- Item Weight: 57.70 Pounds
- Item Dimensions: 113.2 x 27.7 x 14.8 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 15798951
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 GMC Sierra 3500 Submodels:
- Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
View related parts
2006 GMC Sierra 3500 Muffler Part Number: 15798954
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Exhaust & Tail Pipe & 3W; Muffler, Exhaust
- Replaces: 15147362, 15113073
- Item Weight: 64.30 Pounds
- Item Dimensions: 127.3 x 25.8 x 17.6 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 15798954
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 GMC Sierra 3500 Submodels:
- Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
View related parts
2006 GMC Sierra 3500 Muffler Part Number: 15798962
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Exhaust & Tail Pipe & 3W; Muffler, Exhaust
- Replaces: 15070023, 15103198, 15113072, 15147361, 15094497
- Item Weight: 68.80 Pounds
- Item Dimensions: 125.3 x 24.7 x 15.5 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 15798962
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 GMC Sierra 3500 Submodels:
- Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
View related parts
2006 GMC Sierra 3500 Muffler Part Number: 15798948
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Exhaust & Tail Pipe & 3W; Muffler, Exhaust
- Replaces: 15077763, 15077779, 15147353, 15103189, 15113063
- Item Weight: 70.80 Pounds
- Item Dimensions: 154.1 x 26.3 x 14.7 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 15798948
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 GMC Sierra 3500 Submodels:
- Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS

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2006 GMC Sierra 3500 Muffler

With a comprehensive array of OEM 2006 GMC Sierra 3500 Muffler, from fuel pumps to door handles, our website is a one-stop-shop for your needs. All our genuine 2006 GMC Sierra 3500 Muffler are backed by the manufacturer's warranty and are offered at competitive prices in the market. Rest assured, you can shop with complete confidence.

2006 GMC Sierra 3500 Muffler Parts and Q&A

Q: How to replace the muffler on 6.0L, 6.6L, and 8.1L engines on 2006 GMC Sierra 3500?
A: To change the muffler of 6.0L, 6.6L, and 8.1L engines, elevate the car and prop it up. Take out the required elements, drop the rear axle and remove the muffler. Install new gasket, reattach muffler and tighten all parts. Lastly, take off supports and get the vehicle down.