Gaskets & Sealing Systems for 2026 GMC Yukon XL

2

Catalytic Converter Gasket

GM

Notes: PARTS: Part included with catalytic converter.

Description: GM Genuine Parts Catalytic Converter Gasket (Part Number: 55494570) is an OEM gasket designed to provide a proper seal between exhaust components and the catalytic converter. Type: Catalytic converter gasketFunction: Helps maintain a tight exhaust seal to ...

MSRP $0.86

$0.62

MSRP $0.86

$0.62

3

Catalytic Converter Clamp

55503171

GM

Description: GM Genuine Parts Catalytic Converter Clamp (Part Number: 55503171) is an OEM clamp assembly used to provide a tight seal between the catalytic converter and exhaust pipe. Type: Exhaust, Frames & Gas Tanks clamp assemblyFunction: Secures connection and ...

MSRP $14.88

$10.72

MSRP $14.88

$10.72

4

Catalytic Converter ¹

86535357

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

Exhaust System Front Gasket

84763642

GM

Positions: Rear

Description: GM Genuine Parts Exhaust System Front Gasket (Part Number: 84763642) is a front exhaust gasket that seals exhaust joints to prevent leaks and maintain exhaust routing. Function: Seals front exhaust components (manifold/pipe) to prevent leaks and ensure pro ...

MSRP $3.58

$2.58

MSRP $3.58

$2.58

7

Exhaust Front Hanger

84482352

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

Exhaust System Insulator

25872426

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

Intermediate Pipe

85712191

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

Intermediate Pipe Clamp

86799823

GM

Description: GM Genuine Parts Exhaust Pipe Clamp (Part Number: 86799823) is a clamp used to secure exhaust piping joints on single-exhaust systems. Application note: OE notes reference 3.0L diesel single-exhaust configurations.Purpose: Secures exhaust connections to ma ...

MSRP $21.37

$15.38

MSRP $21.37

$15.38

11

Exhaust System Hanger Insulator

15092802

GM

Description: GM Genuine Parts Exhaust System Hanger Insulator (Part Number: 15092802) is an insulator used to secure and isolate the exhaust hanger, reducing vibration and noise. Type / Also known as: Exhaust Hanger (INSULATOR-EXH MUFF HNGR)Function: Supports and isola ...

MSRP $32.24

$23.22

MSRP $32.24

$23.22

11

Exhaust System Hanger Insulator

23469850

GM

Description: GM Genuine Parts Exhaust System Hanger Insulator (Part Number: 23469850) is an OE-quality insulator designed to secure and support the exhaust system while reducing vibration and noise transfer to the cabin. Type: Exhaust hanger insulator / muffler & p ...

MSRP $32.10

$23.11

MSRP $32.10

$23.11

12

Exhaust Back Pressure Regulator

40009243

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

Rear Muffler

87816557

GM

Description: 3.0L diesel, 2021-24. Single exhaust. Escalade. 3.0l diesel. Suburban. 3.0l diesel. Tahoe. 3.0l diesel. Yukon. 3.0l diesel.

$213.59

15

Exhaust System Rear Gasket

84407371

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

Heat Shield

86788519

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

Heat Shield

84685655

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

Exhaust Rear Underbody Heat Shield

84687185

GM

Description: GM Genuine Parts Exhaust Rear Underbody Heat Shield (Part Number: 84687185) is a factory underbody heat shield designed to protect vehicle undercarriage from exhaust heat. Function: Redirects and blocks exhaust heat to protect underbody components and wiri ...

MSRP $34.48

$23.59

MSRP $34.48

$23.59