How to replace the muffler on 6.0L and 8.1L engines on GMC Yukon XL 2500?

The process requires that you elevate the vehicle before proceeding with Muffler replacement for 6.0l and 8.1l engines. Disconnect the Oxygen Sensor connector and its cpa retainer from the frame then from the support using this procedure multiple times as needed. You must disconnect both the Oxygen Sensor and its sensor connection for the replacement of the 6.0l engine system. Support the Muffler with an assistant while you remove exhaust Muffler nuts and loosen the Exhaust Pipe clamp. The Muffler detachment from the Catalytic Converter can be done by moving it backward while removing insulators from frame hangers and Muffler hangers. When you plan to replace the Muffler you need to take out both the exhaust manifold pipe gasket and the Oxygen Sensor. To replace individual Muffler components, mark the intermediate Exhaust Pipe band clamp position then fully remove the weld before adding a new clamp. The installation of a new Muffler requires a reinstallation of the Oxygen Sensor with anti-seize compound gm p/n 12377953 or equivalent on its threads and a tight torque specification of 42 nm (31 ft. Lbs.). The insulators should receive lubrication before implementment while installers should position them on Muffler hangers with new exhaust manifold pipe gaskets between them. Assistance helps move the Muffler forward until you connect it to the Catalytic Converter before securing the insulators on the frame hangers. Lower the vehicle while placing the new band clamp on the intermediate Exhaust Pipe but keep the bolt positioned above the pipe. Tighten the exhaust Muffler nuts to 40 nm while keeping them about 30 ft. Lbs. Of torque. Secure the clamp by applying torque to 44 nm (33 ft. Lbs.) but not exceeding 40 nm (30 ft. Lbs.) for the nut. Reconnect the Oxygen Sensor electrical connector along with the cpa retainer and secure the connector to the frame and support according to needs.

OEM GMC Yukon XL 2500 Muffler

Exhaust Muffler

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16 Mufflers found

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GMC Yukon XL 2500 Muffler & Pipe
Part Number: 25940548
$638.25 MSRP: $958.53
You Save: $320.28 (34%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Resonator, Exhaust & Tail Pipe; Exhaust Pipe; Muffler; Muffler, Exhaust Tail Pipe; Muffler, Exhaust
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009 GMC Yukon XL 2500 | SLE, SLT | 8 Cyl 6.0 L GAS
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GMC Yukon XL 2500 Muffler & Pipe
Part Number: 20882404
$892.40 MSRP: $1340.20
You Save: $447.80 (34%)
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Resonator, Exhaust & Tail Pipe; Direct-Fit Exhaust; Exhaust System Kit; Exhaust Pipe; Muffler; Muffler, Exhaust Tail Pipe; Muffler, Exhaust
- Replaces: 20779912, 25940547
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2013 GMC Yukon XL 2500 | SLE, SLT | 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
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GMC Yukon XL 2500 Muffler
Part Number: 89060649
Product Specifications
- Other Name: Muffler Assembly, Exhaust (W/Exhaust & Tail Pipe & 3Way Catalytic Converter; Muffler, Exhaust
- Replaces: 15755165
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000 GMC Yukon XL 2500 | SLE, SLT | 8 Cyl 6.0 L GAS
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GMC Yukon XL 2500 Muffler
Part Number: 88983207
Product Specifications
- Other Name: Muffler Assembly, Exhaust (W/Exhaust & Tail Pipe & 3Way Catalytic Converter; Muffler, Exhaust
- Replaces: 88983203
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2004 GMC Yukon XL 2500 | SLE, SLT | 8 Cyl 8.1 L GAS
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GMC Yukon XL 2500 Muffler & Pipe
Part Number: 88983206
Product Specifications
- Other Name: Muffler Assembly, Exhaust (W/Exhaust & Tail Pipe & 3Way Catalytic Converter; Exhaust Pipe; Muffler; Muffler, Exhaust
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2002 GMC Yukon XL 2500 | SLE, SLT | 8 Cyl 6.0 L GAS
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GMC Yukon XL 2500 Muffler
Part Number: 88983205
Product Specifications
- Other Name: Muffler Assembly, Exhaust (W/Exhaust & Tail Pipe & 3Way Catalytic Converter; Muffler, Exhaust
- Replaces: 15076574, 88983111
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002 GMC Yukon XL 2500 | SLE, SLT | 8 Cyl 8.1 L GAS
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GMC Yukon XL 2500 Muffler
Part Number: 88983202
Product Specifications
- Other Name: Muffler Assembly, Exhaust (W/Exhaust & Tail Pipe & 3Way Catalytic Converter; Muffler, Exhaust
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2002 GMC Yukon XL 2500 | SLE, SLT | 8 Cyl 8.1 L GAS
View related parts
GMC Yukon XL 2500 Muffler & Pipe
Part Number: 25920418
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Resonator, Exhaust & Tail Pipe; Exhaust Pipe; Muffler; Muffler, Exhaust Tail Pipe; Muffler, Exhaust
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2008 GMC Yukon XL 2500 | SLE, SLT | 8 Cyl 6.0 L GAS
View related parts
GMC Yukon XL 2500 Muffler & Pipe
Part Number: 22812179
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Resonator, Exhaust & Tail Pipe; Exhaust Pipe; Muffler; Muffler, Exhaust Tail Pipe; Muffler, Exhaust
- Replaces: 15896610
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2011-2013 GMC Yukon XL 2500 | SLE, SLT | 8 Cyl 6.0 L FLEX
View related parts
GMC Yukon XL 2500 Muffler & Pipe
Part Number: 20960897
Product Specifications
- Other Name: Muffler, Exhaust; Exhaust Pipe; Muffler
- Replaces: 25940542, 20779907
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2013 GMC Yukon XL 2500 | SLE, SLT | 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
View related parts
GMC Yukon XL 2500 Muffler & Pipe
Part Number: 20757530
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Resonator, Exhaust & Tail Pipe; Exhaust Pipe; Muffler; Muffler, Exhaust Tail Pipe; Muffler, Exhaust
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2010 GMC Yukon XL 2500 | SLE, SLT | 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
View related parts
GMC Yukon XL 2500 Muffler & Pipe
Part Number: 19256935
Product Specifications
- Other Name: Muffler Assembly, Exhaust (W/Exhaust Pipe & Tail Pipe); Muffler; Muffler, Exhaust; Exhaust Pipe
- Replaces: 15875136
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2008 GMC Yukon XL 2500 | SLE, SLT | 8 Cyl 6.0 L GAS
View related parts
GMC Yukon XL 2500 Muffler
Part Number: 15798950
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Exhaust & Tail Pipe & 3W; Muffler, Exhaust
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2004 GMC Yukon XL 2500 | SLE, SLT | 8 Cyl 8.1 L GAS
View related parts
GMC Yukon XL 2500 Muffler
Part Number: 15092796
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Exhaust & Tail Pipe & 3W; Muffler, Exhaust
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006 GMC Yukon XL 2500 | SLE, SLT | 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
View related parts
GMC Yukon XL 2500 Muffler
Part Number: 10398388
Product Specifications
- Other Name: Muffler, Exhaust
- Replaces: 15113060, 88983219, 10365858, 15090630, 88983220
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2006 GMC Yukon XL 2500 | SLE, SLT | 8 Cyl 6.0 L GAS
View related parts
GMC Yukon XL 2500 Muffler
Part Number: 10398370
Product Specifications
- Other Name: Muffler Assembly-Exhaust (W/Exhaust & Tail Pipe & 3W; Muffler, Exhaust
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2005 GMC Yukon XL 2500 | SLE, SLT | 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS

GMC Yukon XL 2500 Muffler

Our website offers an extensive catalog of genuine GMC Yukon XL 2500 Muffler at unbeatable prices. Every OEM GMC Yukon XL 2500 Muffler comes with a manufacturer's warranty, an easy return policy, and rapid delivery service. Don't miss out on this great opportunity!

GMC Yukon XL 2500 Muffler Parts Questions & Experts Answers

Muffler
10398370
Q: How to replace the muffler on 6.0L and 8.1L engines on GMC Yukon XL 2500?
A: The process requires that you elevate the vehicle before proceeding with Muffler replacement for 6.0l and 8.1l engines. Disconnect the Oxygen Sensor connector and its cpa retainer from the frame then from the support using this procedure multiple times as needed. You must disconnect both the Oxygen Sensor and its sensor connection for the replacement of the 6.0l engine system. Support the Muffler with an assistant while you remove exhaust Muffler nuts and loosen the Exhaust Pipe clamp. The Muffler detachment from the Catalytic Converter can be done by moving it backward while removing insulators from frame hangers and Muffler hangers. When you plan to replace the Muffler you need to take out both the exhaust manifold pipe gasket and the Oxygen Sensor. To replace individual Muffler components, mark the intermediate Exhaust Pipe band clamp position then fully remove the weld before adding a new clamp. The installation of a new Muffler requires a reinstallation of the Oxygen Sensor with anti-seize compound gm p/n 12377953 or equivalent on its threads and a tight torque specification of 42 nm (31 ft. Lbs.). The insulators should receive lubrication before implementment while installers should position them on Muffler hangers with new exhaust manifold pipe gaskets between them. Assistance helps move the Muffler forward until you connect it to the Catalytic Converter before securing the insulators on the frame hangers. Lower the vehicle while placing the new band clamp on the intermediate Exhaust Pipe but keep the bolt positioned above the pipe. Tighten the exhaust Muffler nuts to 40 nm while keeping them about 30 ft. Lbs. Of torque. Secure the clamp by applying torque to 44 nm (33 ft. Lbs.) but not exceeding 40 nm (30 ft. Lbs.) for the nut. Reconnect the Oxygen Sensor electrical connector along with the cpa retainer and secure the connector to the frame and support according to needs.

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