HomeEmission Control > Hardware, Fasteners and FittingsMotorad DEF103 Diesel Exhaust Fluid (DEF) Filler Cap
Part #: DEF103

Motorad DEF103 Diesel Exhaust Fluid (DEF) Filler Cap

Diesel Emissions Fluid Cap
⚙️ 8 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Diesel Emissions Fluid Cap
🚗Fitment: Ram and Dodge, 2500, 3500, Ram 2500, and Ram 3500
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Overview of Motorad Diesel Emissions Fluid Cap DEF103

The Motorad Diesel Emissions Fluid Cap DEF103 is designed specifically for Dodge Ram 2500 and 3500 models. This diesel exhaust fluid (DEF) filler cap ensures a secure seal to maintain the integrity of your vehicle's emission control system.

  • Threaded attachment type with screw-on thread
  • Blue color for easy identification
  • Inside diameter and thread diameter of 1.20 inches
  • Constructed from durable plastic and rubber materials
  • Shell diameter measures 3.68 inches
  • Female thread gender for specific fitment
  • No tether attached

Detailed Product Description

The Motorad Diesel Emissions Fluid Cap DEF103 is engineered to provide a precise fit for Dodge Ram 2500 and 3500 trucks. Featuring a threaded, screw-on design with a female thread type, this cap measures 1.20 inches in both inside and thread diameter, ensuring compatibility with the DEF filler neck. The cap’s blue color aligns with industry standards for diesel exhaust fluid components, aiding in quick identification during maintenance. Made from a combination of plastic and rubber, the cap offers resistance to chemicals and environmental factors, helping to maintain a tight seal and prevent contamination of the DEF system.

This product is part of the Motorad Diesel Emissions Fluid Cap line, which focuses on emission control hardware designed to meet specific vehicle requirements. The line emphasizes precise fitment and durable materials to support the proper functioning of diesel exhaust fluid systems in heavy-duty trucks.

Common Applications and Problem Solving

  • Prevents DEF fluid contamination from dirt and debris
  • Maintains proper pressure and seal in the DEF tank
  • Helps avoid DEF system warning lights related to cap issues
  • Reduces risk of fluid evaporation or leakage
  • Ensures compliance with emission control standards for Dodge Ram 2500 and 3500

Installation Notes and Tips

  • Ensure the DEF filler neck is clean before installation
  • Align the female threaded cap carefully and screw on until snug
  • Do not overtighten to avoid damaging the plastic or rubber components
  • Check for a secure seal after installation to prevent leaks

Quality Assurance and Warranty

Motorad manufactures the Diesel Emissions Fluid Cap DEF103 to meet OEM specifications for Dodge Ram 2500 and 3500 models. The use of quality plastic and rubber materials ensures durability and resistance to DEF chemicals. While specific warranty details are not provided, Motorad products typically adhere to industry standards for emission control hardware reliability.

BrandMotorad
Part NumberDEF103
PositionDiesel Emissions Fluid Cap
Attachment TypeThreaded
ColorBlue
Inside Diameter1.20 in
MaterialPlastic, Rubber
Shell Diameter3.68 in
Tether AttachedNo
Thread Diameter1.20 in
Thread GenderFemale
Thread TypeScrew On
Universal Or Specific FitSpecific Fit

This part fits 8 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2013Ram25006.7LL6DIESELN/ADiesel Emissions Fluid Cap
2012Ram25006.7LL6DIESELN/ADiesel Emissions Fluid Cap
2012Ram35006.7LL6DIESELN/ADiesel Emissions Fluid Cap
2011Ram25006.7LL6DIESELN/ADiesel Emissions Fluid Cap
2011Ram35006.7LL6DIESELN/ADiesel Emissions Fluid Cap
2010DodgeRam 25006.7LL6DIESELN/ADiesel Emissions Fluid Cap
2010DodgeRam 25005.9LL6DIESELN/ADiesel Emissions Fluid Cap
2010DodgeRam 35006.7LL6DIESELN/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:

1088052122496AA52122496AB52122496AC52122496AD703-1962904-5701904-5701CD9DEF103DEF103

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