GM Genuine Parts Exhaust Gas Recirculation Valve Inlet Gasket
OE
Pack of 1

GM Genuine Parts Exhaust Gas Recirculation Valve Inlet Gasket

GM Part #55508537

ACDelco Part #55508537

MSRP$1.38*

GM Genuine Parts Exhaust Gas Recirculation (EGR) Valve Gaskets are designed, engineered, and tested to rigorous standards, and are backed by General Motors.

  • Helps provide a leak-free seal
  • Allows exhaust pollutants to enter the engine for re-burn
  • Helps the engine emission system operate properly

Pack of 1

About this product

GM Genuine Parts Exhaust Gas Recirculation (EGR) Valve Gaskets are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These gaskets help provide a gas-tight seal for the EGR valve mounting flange. They are made from high temperature materials, and should be replaced whenever you service the EGR valve. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

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  • Helps provide a leak-free seal
  • Allows exhaust pollutants to enter the engine for re-burn
  • Helps the engine emission system operate properly
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies

ShapeIrregular
Length4.06 in / 103 mm
MaterialMetal
Width2.72 in / 69 mm
Thickness0.71 in / 18 mm
Outside Diameter69mm
ClassificationOE
Bolt Hole Quantity2

24 Months/Unlimited Miles Limited Warranty for Parts (plus Labor if installed by a GM dealer)

Please visit our warranty page on Gmparts.com for full warranty details.

Good Maintenance Practices:

  • Replace gasket at signs of carbon build-up around EGR to engine connection.
  • Keep EGR bolts tight.

ModelBody StyleTrimYear(s)
Silverado 1500Crew Cab Pickup2020, 2021, 2022, 2023, 2024, 2025, 2026
Silverado 1500Extended Cab Pickup2020, 2021, 2022, 2023, 2024, 2025, 2026
Silverado 1500 LTDCrew Cab Pickup2022
Silverado 1500 LTDExtended Cab Pickup2022
Suburban2021, 2022, 2023, 2024, 2025, 2026

Frequently Asked Questions

Yes. If the sealing surfaces are pitted, causing the gasket not to seal, approved sealant may be used.

Yes. Overtightening the bolts may damage the gasket. Check vehicle specification for proper torque.