HomeEmission Control > Hardware, Fasteners and FittingsMotorad DEF102 Diesel Exhaust Fluid (DEF) Filler Cap
Part #: DEF102

Motorad DEF102 Diesel Exhaust Fluid (DEF) Filler Cap

Diesel Emissions Fluid Cap
⚙️ 88 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Diesel Emissions Fluid Cap
🚗Fitment: Chevrolet and GMC, Express 2500, Express 3500, Savana 2500, Savana 3500, Silverado 2500 HD, Silverado 3500 HD, Sierra 2500 HD, and Sierra 3500 HD
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Overview of Motorad Diesel Emissions Fluid Cap DEF102

The Motorad Diesel Emissions Fluid Cap DEF102 is designed specifically for select Chevrolet and GMC diesel vehicles. This DEF filler cap ensures a secure seal for your diesel exhaust fluid system, helping maintain proper emissions control and system integrity.

  • Cam-on attachment type for easy installation
  • Blue color for quick identification
  • Constructed from durable plastic and rubber materials
  • Inside diameter of 1.09 inches and shell diameter of 1.56 inches
  • Thread diameter of 1.30 inches with male cam-on thread type
  • Specific fit for Chevrolet and GMC heavy-duty models
  • No tether attached for a clean, simple design

Detailed Product Description

The Motorad Diesel Emissions Fluid Cap DEF102 is engineered to fit specific diesel vehicles including Chevrolet Express 2500 and 3500, GMC Savana 2500 and 3500, as well as Chevrolet Silverado and GMC Sierra 2500 HD and 3500 HD models. Its cam-on attachment type and male thread design provide a secure and reliable seal to prevent contamination and evaporation of diesel exhaust fluid. The cap’s blue color aligns with industry standards for DEF components, making it easy to identify during maintenance. Made from a combination of plastic and rubber, this cap balances durability with flexibility to maintain a tight seal under various operating conditions.

About the Diesel Emissions Fluid Cap Product Line

The Motorad Diesel Emissions Fluid Cap product line focuses on providing precise, vehicle-specific DEF filler caps that meet OEM specifications. This line is designed to support emission control systems by ensuring proper sealing and compatibility with diesel exhaust fluid tanks. The DEF102 cap is part of this line, offering a tailored fit and reliable performance for heavy-duty Chevrolet and GMC diesel trucks.

Common Applications and Issues Addressed

  • Prevents diesel exhaust fluid contamination from dirt and debris
  • Helps maintain proper DEF system pressure and fluid levels
  • Reduces risk of DEF evaporation and crystallization
  • Ensures compliance with emission control requirements
  • Replaces worn or damaged DEF filler caps on compatible vehicles

Installation Notes and Tips

Installation of the Motorad DEF102 cap is straightforward due to its cam-on attachment type. Align the cap with the DEF tank opening and press down firmly until it locks into place. Ensure the threads engage properly to avoid leaks. Since this cap does not have a tether, keep it in a safe place during DEF refills to prevent loss. Always verify compatibility with your vehicle’s make and model before installation.

Quality Assurance and Warranty

Motorad manufactures the DEF102 Diesel Emissions Fluid Cap to meet strict quality standards for emission control hardware. The use of durable plastic and rubber materials ensures long-lasting performance under typical operating conditions. While specific warranty details are not provided, Motorad products generally adhere to industry quality expectations for OEM replacement parts.

BrandMotorad
Part NumberDEF102
PositionDiesel Emissions Fluid Cap
Attachment TypeCam-On
ColorBlue
Inside Diameter1.09 in
MaterialPlastic, Rubber
Shell Diameter1.56 in
Tether AttachedNo
Thread Diameter1.30 in
Thread GenderMale
Thread TypeCam-On
Universal Or Specific FitSpecific Fit

This part fits 88 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2021ChevroletExpress 25002.8LL4N/ADiesel Emissions Fluid Cap
2021ChevroletExpress 35002.8LL4N/ADiesel Emissions Fluid Cap
2021GMCSavana 25002.8LL4N/ADiesel Emissions Fluid Cap
2021GMCSavana 35002.8LL4N/ADiesel Emissions Fluid Cap
2020ChevroletExpress 25002.8LL4N/ADiesel Emissions Fluid Cap
2020ChevroletExpress 35002.8LL4N/ADiesel Emissions Fluid Cap
2020GMCSavana 25002.8LL4N/ADiesel Emissions Fluid Cap
2020GMCSavana 35002.8LL4N/ADiesel Emissions Fluid Cap
2019ChevroletExpress 25002.8LL4N/ADiesel Emissions Fluid Cap
2019ChevroletExpress 35002.8LL4N/ADiesel Emissions Fluid Cap
2019ChevroletSilverado 2500 HD6.6LV8N/ADiesel Emissions Fluid Cap
2019ChevroletSilverado 3500 HD6.6LV8N/ADiesel Emissions Fluid Cap
2019GMCSavana 25002.8LL4N/ADiesel Emissions Fluid Cap
2019GMCSavana 35002.8LL4N/ADiesel Emissions Fluid Cap
2019GMCSierra 2500 HD6.6LV8N/ADiesel Emissions Fluid Cap
2019GMCSierra 3500 HD6.6LV8N/ADiesel Emissions Fluid Cap
2018ChevroletExpress 25002.8LL4N/ADiesel Emissions Fluid Cap
2018ChevroletExpress 35002.8LL4N/ADiesel Emissions Fluid Cap
2018ChevroletSilverado 2500 HD6.6LV8N/ADiesel Emissions Fluid Cap
2018ChevroletSilverado 3500 HD6.6LV8N/ADiesel Emissions Fluid Cap
2018GMCSavana 25002.8LL4N/ADiesel Emissions Fluid Cap
2018GMCSavana 35002.8LL4N/ADiesel Emissions Fluid Cap
2018GMCSierra 2500 HD6.6LV8N/ADiesel Emissions Fluid Cap
2018GMCSierra 3500 HD6.6LV8N/ADiesel Emissions Fluid Cap
2017ChevroletExpress 25002.8LL4N/ADiesel Emissions Fluid Cap
2017ChevroletExpress 35002.8LL4N/ADiesel Emissions Fluid Cap
2017ChevroletSilverado 2500 HD6.6LV8N/ADiesel Emissions Fluid Cap
2017ChevroletSilverado 3500 HD6.6LV8N/ADiesel Emissions Fluid Cap
2017GMCSavana 25002.8LL4N/ADiesel Emissions Fluid Cap
2017GMCSavana 35002.8LL4N/ADiesel Emissions Fluid Cap
2017GMCSierra 2500 HD6.6LV8N/ADiesel Emissions Fluid Cap
2017GMCSierra 3500 HD6.6LV8N/ADiesel Emissions Fluid Cap
2016ChevroletExpress 25006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2016ChevroletExpress 35006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2016ChevroletSilverado 2500 HD6.6LV8N/ADiesel Emissions Fluid Cap
2016ChevroletSilverado 3500 HD6.6LV8N/ADiesel Emissions Fluid Cap
2016GMCSavana 25006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2016GMCSavana 35006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2016GMCSierra 2500 HD6.6LV8N/ADiesel Emissions Fluid Cap
2016GMCSierra 3500 HD6.6LV8N/ADiesel Emissions Fluid Cap
2015ChevroletExpress 25006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2015ChevroletExpress 35006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2015ChevroletSilverado 2500 HD6.6LV8N/ADiesel Emissions Fluid Cap
2015ChevroletSilverado 3500 HD6.6LV8N/ADiesel Emissions Fluid Cap
2015GMCSavana 25006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2015GMCSavana 35006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2015GMCSierra 2500 HD6.6LV8N/ADiesel Emissions Fluid Cap
2015GMCSierra 3500 HD6.6LV8N/ADiesel Emissions Fluid Cap
2014ChevroletExpress 25006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2014ChevroletExpress 35006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2014ChevroletSilverado 2500 HD6.6LV8DIESELN/ADiesel Emissions Fluid Cap
2014ChevroletSilverado 3500 HD6.6LV8DIESELN/ADiesel Emissions Fluid Cap
2014GMCSavana 25006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2014GMCSavana 35006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2014GMCSierra 2500 HD6.6LV8DIESELN/ADiesel Emissions Fluid Cap
2014GMCSierra 3500 HD6.6LV8DIESELN/ADiesel Emissions Fluid Cap
2013ChevroletExpress 25006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2013ChevroletExpress 35006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2013ChevroletSilverado 2500 HD6.6LV8DIESELN/ADiesel Emissions Fluid Cap
2013ChevroletSilverado 3500 HD6.6LV8DIESELN/ADiesel Emissions Fluid Cap
2013GMCSavana 25006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2013GMCSavana 35006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2013GMCSierra 2500 HD6.6LV8DIESELN/ADiesel Emissions Fluid Cap
2013GMCSierra 3500 HD6.6LV8DIESELN/ADiesel Emissions Fluid Cap
2012ChevroletExpress 25006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2012ChevroletExpress 35006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2012ChevroletSilverado 2500 HD6.6LV8DIESELN/ADiesel Emissions Fluid Cap
2012ChevroletSilverado 3500 HD6.6LV8DIESELN/ADiesel Emissions Fluid Cap
2012GMCSavana 25006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2012GMCSavana 35006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2012GMCSierra 2500 HD6.6LV8DIESELN/ADiesel Emissions Fluid Cap
2012GMCSierra 3500 HD6.6LV8DIESELN/ADiesel Emissions Fluid Cap
2011ChevroletExpress 25006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2011ChevroletExpress 35006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2011ChevroletSilverado 2500 HD6.6LV8DIESELN/ADiesel Emissions Fluid Cap
2011ChevroletSilverado 3500 HD6.6LV8DIESELN/ADiesel Emissions Fluid Cap
2011GMCSavana 25006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2011GMCSavana 35006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2011GMCSierra 2500 HD6.6LV8DIESELN/ADiesel Emissions Fluid Cap
2011GMCSierra 3500 HD6.6LV8DIESELN/ADiesel Emissions Fluid Cap
2010ChevroletExpress 25006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2010ChevroletExpress 35006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2010ChevroletSilverado 2500 HD6.6LV8DIESELN/ADiesel Emissions Fluid Cap
2010ChevroletSilverado 3500 HD6.6LV8DIESELN/ADiesel Emissions Fluid Cap
2010GMCSavana 25006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2010GMCSavana 35006.6LV8DIESELN/ADiesel Emissions Fluid Cap
2010GMCSierra 2500 HD6.6LV8DIESELN/ADiesel Emissions Fluid Cap
2010GMCSierra 3500 HD6.6LV8DIESELN/ADiesel Emissions Fluid Cap

* 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:

1088112D012081565022753134703-1961904-5601904-5601CD9DEF102DEF102

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