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Home 2026 GMC Yukon XL AT4 3.0L L6 - Diesel Hardware, Fasteners & Fittings

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2026 GMC Yukon XL

AT4 3.0L L6 - Diesel

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Hardware, Fasteners & Fittings for 2026 GMC Yukon XL

Diagram 1 1. Catalytic Converter Clamp Diagram 2 2. Catalytic Converter Gasket 3. Exhaust Manifold Heat Shield Bolt
Hardware, Fasteners & Fittings for 2026 GMC Yukon XL #1
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No.
Part # / Description / Price
Price
2
55494570 - Exhaust: Catalytic Converter Gasket for GM Image
Catalytic Converter Gasket
55494570
GM GM
Notes: PARTS: Part included with catalytic converter.
Description: Helps provide a tight seal for your vehicle's catalytic converter This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $0.86
$0.62
MSRP $0.86
$0.62
3
55503171 - Exhaust: Catalytic Converter Clamp for GM Image
Catalytic Converter Clamp
55503171
GM GM
Description: Helps provide a tight seal for your vehicle's catalytic converter and exhaust pipe connection This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $14.88
$10.72
MSRP $14.88
$10.72
4
86535357 - Exhaust: Converter & Pipe for GM Image
Catalytic Converter 1
86535357
GM GM
Description: Silverado, sierra. 3.0l diesel. Upper. Suburban. 3.0l diesel. Tahoe. 3.0l diesel. Nox scr/doc converter. Yukon. 3.0l diesel. 3.0L diesel dual exhaust 2025-26. 3.0L diesel single exhaust 2025-26.
MSRP $408.52
$268.40
MSRP $408.52
$268.40
5
84763642 - Exhaust: Catalytic Converter Gasket for GM Image
Exhaust System Front Gasket
84763642
GM GM
Description: Dual exhaust. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $3.58
$2.58
MSRP $3.58
$2.58
7
84482352 - Exhaust: Hanger for GM Image
Exhaust Front Hanger
84482352
GM GM
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $9.37
$6.76
MSRP $9.37
$6.76
8
25872426 - Exhaust: Hanger Insulator for GM Image
Exhaust System Insulator
25872426
GM GM
Notes: PARTS: Part included with hanger.
Description: 6.0L. 3.6L, 2015-16. 3.6L 2017-21. Helps secure and support your vehicle's exhaust pipe to the underside of the vehicle Helps prevent excessive vibration and noise from entering the interior cabin This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $63.16
$43.21
MSRP $63.16
$43.21
9
85712191 - Exhaust: Intermediate Pipe for GM Image
Intermediate Pipe
85712191
GM GM
Description: Yukon XL. 3.0l diesel. 3.0L diesel dual exhaust 2025-26.
MSRP $303.12
$199.15
MSRP $303.12
$199.15
10
86799823 - Exhaust: Exhaust Clamp for GM Image
Intermediate Pipe Clamp
86799823
GM GM
Description: Single exhaust, 2023-26. Dual exhaust, 2020-22. 3.0L diesel dual exhaust 2025-26.
MSRP $21.37
$15.38
MSRP $21.37
$15.38
11
15092802 - Exhaust: Intermediate Pipe Insulator for GM Image
Exhaust System Hanger Insulator
15092802
GM GM
Description: Helps secure and support your vehicle's exhaust pipe to the underside of the vehicle Helps prevent excessive vibration and noise from entering the interior cabin This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors Collision parts are designed to help promote proper and safe repair
MSRP $32.24
$23.22
MSRP $32.24
$23.22
11
23469850 - Exhaust: Intermediate Pipe Insulator for GM Image
Exhaust System Hanger Insulator
23469850
GM GM
Description: 2018-20, 3 hole. Single exhaust, front. 6.6L diesel, 3-hole. Dual exhaust, front. 2.7L, front. 4.3L, front. 3.6L 2017-21. front. 2.8 turbo diesel rear section. Helps secure and support your vehicle's exhaust pipe to the underside of the vehicle Helps prevent excessive vibration and noise from entering the interior cabin This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $32.10
$23.11
MSRP $32.10
$23.11
12
40009243 - Air & Fuel Delivery: Exhaust Back Pressure Regulator for GM Image
Exhaust Back Pressure Regulator
40009243
GM GM
Description: Single exhaust, 2023-26. 3.0L diesel dual exhaust 2025-26. Actuator.
MSRP $152.16
$84.45
MSRP $152.16
$84.45
14
87816557 - Exhaust: Rear Muffler for GM Image
Rear Muffler
87816557
GM GM
Description: Suburban. 3.0l diesel. Tahoe. 3.0l diesel. Yukon. 3.0l diesel. 3.0L diesel single exhaust 2025-26. Rear muffler.
$213.59
$213.59
15
84407371 - Exhaust: Rear Muffler Gasket for GM Image
Exhaust System Rear Gasket
84407371
GM GM
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $7.01
$5.04
MSRP $7.01
$5.04
17
86788519 - Exhaust: Heat Shield for GM Image
Heat Shield
86788519
GM GM
Description: 5.3L, center, front. Single exhaust, 2023-26, front, center. 5.3 & 6.2L dual exhaust. center front. 3.0L diesel dual exhaust 2025-26. front.
MSRP $59.81
$40.90
MSRP $59.81
$40.90
18
84685655 - Exhaust: Heat Shield for GM Image
Heat Shield
84685655
GM GM
Description: 3.0L diesel, 2021-24, center, rear. 5.3L, center, rear. 3.0L diesel, center rear, Escalade ESV. 6.2L supercharged, center rear, Escalade ESV. 3.0L diesel dual exhaust 2025-26. center. 5.3 & 6.2L dual exhaust. center rear.
MSRP $22.47
$16.18
MSRP $22.47
$16.18
19
84687185 - Exhaust: Heat Shield for GM Image
Exhaust Rear Underbody Heat Shield
84687185
GM GM
Description: Can help prevent exhaust heat from damaging your vehicle's undercarriage and engine compartment components This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $34.48
$23.59
MSRP $34.48
$23.59
1 This price excludes a refundable manufacturer's core charge. Add the part to your cart to see the core charge.