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Standard Ignition SK120 Fuel Injector Seal KitOE Quality 60-Day Returns
Part #: SK120

Standard Ignition SK120 Fuel Injector Seal Kit

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Fitment: Cadillac, Chevrolet, and GMC, Escalade, Camaro, Corvette, Silverado 1500, Suburban, Sierra 1500, Yukon XL, Escalade ESV, Tahoe, Yukon, and Suburban 3500 HD
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Fuel Injector Seal Kit for GDI Service

Standard Ignition SK120 is a fuel injector seal kit built for direct injection service where reliable sealing matters. It uses high-temperature Viton O-rings to help maintain a tight seal under elevated heat and demanding engine conditions.

This kit is organized with assorted seal sizes for faster service and cleaner installation on compatible GM applications, including Chevrolet Silverado 1500, GMC Sierra 1500, Cadillac Escalade, and related models.

Key Features

  • Fuel injector seal kit for GDI applications
  • High-temperature Viton O-rings for heat resistance
  • Assorted sizes for easier injector service and fitment matching
  • Rubber seal construction
  • Seal type: GDI
  • Designed for injector sealing on compatible Chevrolet, GMC, and Cadillac vehicles
  • Standard Ignition SK120 part number for service lookup

Detailed Description

Standard Ignition SK120 is a direct injection fuel injector seal kit engineered to sit between sealing surfaces and help prevent fuel leakage during severe operating conditions. The O-rings are made with high-temp Viton material to support sealing performance in hot engine environments, while the assorted-size layout helps streamline injector service. This makes SK120 a practical choice for technicians servicing GM trucks and performance-oriented applications such as the Chevrolet Silverado 1500, GMC Sierra 1500, and Cadillac Escalade. This part cross-references 12623119 and 12672366 for the same application.

Common Problems This Kit Helps Address

  • Fuel seepage around direct injection injector seals
  • Hard starting caused by poor injector sealing
  • Rough idle related to vacuum or fuel leakage at the injector
  • Heat-related seal deterioration in high-load engine operation
  • Service delays when replacing injector seals on GDI systems

Installation Notes and Tips

Inspect injector sealing surfaces before installation and replace any damaged components that could affect the seal. Clean the injector bore and surrounding area thoroughly, then lubricate the O-rings as needed during assembly to reduce tearing and improve seating. Verify the seal type and application before reassembly, especially on 2014-2021 Chevrolet Silverado 1500, 2014-2021 GMC Sierra 1500, 2015-2020 Cadillac Escalade, and other listed GM direct injection vehicles.

  • Fits 2020-2021 Chevrolet Silverado 1500, N/A
  • Fits 2020-2021 GMC Sierra 1500, N/A
  • Fits 2020 Cadillac Escalade, N/A
  • Fits 2019-2020 Cadillac Escalade ESV, N/A
  • Fits 2019-2020 Chevrolet Tahoe, N/A
  • Fits 2019-2020 GMC Yukon, N/A
  • Fits 2020 GMC Yukon XL, N/A
  • Fits 2015-2019 Cadillac Escalade, N/A
  • Fits 2019 Chevrolet Camaro, N/A
  • Fits 2016-2017 Chevrolet Camaro, N/A
  • Fits 2019 Chevrolet Corvette, N/A
  • Fits 2014-2017 Chevrolet Corvette, N/A
  • Fits 2014-2019 Chevrolet Silverado 1500, N/A
  • Fits 2014-2019 GMC Sierra 1500, N/A
  • Fits 2015-2019 GMC Yukon XL, N/A
  • Fits 2015-2018 Cadillac Escalade ESV, N/A
  • Fits 2018 Chevrolet Corvette, N/A
  • Fits 2015-2018 Chevrolet Tahoe, N/A
  • Fits 2015-2018 GMC Yukon, N/A
  • Fits 2016 Chevrolet Suburban 3500 HD, N/A

Quality Assurance

Standard Ignition supplies service parts built for automotive repair applications, and SK120 uses quality-tested O-rings to support long-term sealing performance in extreme vehicle operation.

BrandStandard Ignition
Part NumberSK120
Assorted SizesYes
Injectors Covered per Kit8
Kit/Set ContentsYes
MaterialRubber
Pintle Cap IncludedNo
Seal TypeGDI

This part fits 89 vehicles. Search below:

YearMakeModelSubmodelTransmissionLitersCylindersFuel TypePositionNotes
2021ChevroletSilverado 1500N/A
2021GMCSierra 1500N/A
2020CadillacEscaladeN/A
2020CadillacEscalade ESVN/A
2020ChevroletSilverado 1500N/A
2020ChevroletTahoeN/A
2020GMCSierra 1500N/A
2020GMCYukonN/A
2020GMCYukon XLN/A
2019CadillacEscalade6.2LV8N/AFitment: Service four injectors with one single package.
2019CadillacEscalade ESVN/A
2019ChevroletCamaro6.2LV8N/AFitment: Service four injectors with one single package.
2019ChevroletCorvetteStingrayN/AFitment: Service four injectors with one single package.
2019ChevroletSilverado 15004.3LV6N/AFitment: Service four injectors with one single package.
2019ChevroletSilverado 15006.2LV8N/AFitment: Service four injectors with one single package.
2019ChevroletSilverado 15005.3LV8N/AFitment: Service four injectors with one single package.
2019ChevroletTahoeN/A
2019GMCSierra 15004.3LV6N/AFitment: Service four injectors with one single package.
2019GMCSierra 15006.2LV8N/AFitment: Service four injectors with one single package.
2019GMCSierra 15005.3LV8N/AFitment: Service four injectors with one single package.
2019GMCYukonN/A
2019GMCYukon XL6.2LV8N/AFitment: Service four injectors with one single package.
2019GMCYukon XL5.3LV8N/AFitment: Service four injectors with one single package.
2018CadillacEscalade6.2LV8N/AFitment: Service four injectors with one single package.
2018CadillacEscalade ESV6.2LV8N/AFitment: Service four injectors with one single package.
2018ChevroletCorvetteStingrayN/A
2018ChevroletSilverado 15004.3LV6N/AFitment: Service four injectors with one single package.
2018ChevroletSilverado 15006.2LV8N/AFitment: Service four injectors with one single package.
2018ChevroletSilverado 15005.3LV8N/AFitment: Service four injectors with one single package.
2018ChevroletTahoe5.3LV8N/AFitment: Service four injectors with one single package.
2018GMCSierra 15004.3LV6N/AFitment: Service four injectors with one single package.
2018GMCSierra 15006.2LV8N/AFitment: Service four injectors with one single package.
2018GMCSierra 15005.3LV8N/AFitment: Service four injectors with one single package.
2018GMCYukonAutomatic5.3LV8N/AFitment: Service four injectors with one single package.
2018GMCYukon6.2LV8FLEXN/AFitment: Service four injectors with one single package.
2018GMCYukon XL6.2LV8N/AFitment: Service four injectors with one single package.
2018GMCYukon XL5.3LV8N/AFitment: Service four injectors with one single package.
2017CadillacEscalade6.2LV8N/AFitment: Service four injectors with one single package.
2017CadillacEscalade ESV6.2LV8N/AFitment: Service four injectors with one single package.
2017ChevroletCamaroSS6.2LV8N/AFitment: Service four injectors with one single package.
2017ChevroletCorvetteStingrayN/AFitment: Service four injectors with one single package.
2017ChevroletSilverado 15004.3LV6N/AFitment: Service four injectors with one single package.
2017ChevroletSilverado 15006.2LV8N/AFitment: Service four injectors with one single package.
2017ChevroletSilverado 15005.3LV8N/AFitment: Service four injectors with one single package.
2017ChevroletTahoe5.3LV8N/AFitment: Service four injectors with one single package.
2017GMCSierra 15004.3LV6N/AFitment: Service four injectors with one single package.
2017GMCSierra 15006.2LV8N/AFitment: Service four injectors with one single package.
2017GMCSierra 15005.3LV8N/AFitment: Service four injectors with one single package.
2017GMCYukon6.2LV8N/AFitment: Service four injectors with one single package.
2017GMCYukon5.3LV8N/AFitment: Service four injectors with one single package.
2017GMCYukon XL6.2LV8N/AFitment: Service four injectors with one single package.
2017GMCYukon XL5.3LV8N/AFitment: Service four injectors with one single package.
2016CadillacEscalade6.2LV8N/AFitment: Service four injectors with one single package.
2016CadillacEscalade ESV6.2LV8N/AFitment: Service four injectors with one single package.
2016ChevroletCamaro6.2LV8N/AFitment: Service four injectors with one single package.
2016ChevroletCorvetteStingrayN/AFitment: Service four injectors with one single package.
2016ChevroletSilverado 15004.3LV6N/AFitment: Service four injectors with one single package.
2016ChevroletSilverado 15006.2LV8N/AFitment: Service four injectors with one single package.
2016ChevroletSilverado 15005.3LV8N/AFitment: Service four injectors with one single package.
2016ChevroletSuburban 3500 HD6.0LV8N/AFitment: Service four injectors with one single package.
2016ChevroletTahoe5.3LV8N/AFitment: Service four injectors with one single package.
2016GMCSierra 15004.3LV6N/AFitment: Service four injectors with one single package.
2016GMCSierra 15006.2LV8N/AFitment: Service four injectors with one single package.
2016GMCSierra 15005.3LV8N/AFitment: Service four injectors with one single package.
2016GMCYukonAutomatic5.3LV8N/AFitment: Service four injectors with one single package.
2016GMCYukon6.2LV8FLEXN/AFitment: Service four injectors with one single package.
2016GMCYukon XLAutomatic5.3LV8N/AFitment: Service four injectors with one single package.
2016GMCYukon XL6.2LV8N/AFitment: Service four injectors with one single package.
2015CadillacEscalade6.2LV8N/AFitment: Service four injectors with one single package.
2015CadillacEscalade ESV6.2LV8N/AFitment: Service four injectors with one single package.
2015ChevroletCorvetteStingrayN/AFitment: Service four injectors with one single package.
2015ChevroletSilverado 15004.3LV6N/AFitment: Service four injectors with one single package.
2015ChevroletSilverado 15006.2LV8N/AFitment: Service four injectors with one single package.
2015ChevroletSilverado 15005.3LV8N/AFitment: Service four injectors with one single package.
2015ChevroletTahoe5.3LV8N/AFitment: Service four injectors with one single package.
2015GMCSierra 15004.3LV6N/AFitment: Service four injectors with one single package.
2015GMCSierra 15006.2LV8N/AFitment: Service four injectors with one single package.
2015GMCSierra 15005.3LV8N/AFitment: Service four injectors with one single package.
2015GMCYukon5.3LV8N/AFitment: Service four injectors with one single package.
2015GMCYukon6.2LV8FLEXN/AFitment: Service four injectors with one single package.
2015GMCYukon XL6.2LV8N/AFitment: Service four injectors with one single package.
2015GMCYukon XL5.3LV8N/AFitment: Service four injectors with one single package.
2014ChevroletCorvetteStingrayN/AFitment: Service four injectors with one single package.
2014ChevroletSilverado 15004.3LV6N/AFitment: Service four injectors with one single package.
2014ChevroletSilverado 15006.2LV8N/AFitment: Service four injectors with one single package.
2014ChevroletSilverado 15005.3LV8N/AFitment: Service four injectors with one single package.
2014GMCSierra 15004.3LV6N/AFitment: Service four injectors with one single package.
2014GMCSierra 15006.2LV8N/AFitment: Service four injectors with one single package.
2014GMCSierra 15005.3LV8N/AFitment: Service four injectors with one single package.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

12623119126723662-12376274845800-93008SKDL93008

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

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