Gates 31838D Fuel Tank Cap

Overview of Gates Diesel Only Fuel Cap 31838D

The Gates Diesel Only Fuel Cap 31838D is designed specifically for diesel vehicles requiring a secure and pressure-vacuum vented fuel tank cap. Its green color and quick-on cam type make it a practical replacement part for various Dodge, Jeep, Mercedes-Benz, and Ram models.

• Color: Green for easy identification
• Type: Diesel only fuel cap
• Thread Diameter: 1.78 inches
• Depth: 2.41 inches
• Shell Diameter: 2.78 inches
• Venting: Pressure vacuum system
• Cam Type: Quick-on for fast installation
• Non-lockable design

Detailed Product Description

The Gates Diesel Only Fuel Cap 31838D is engineered to meet the specific needs of diesel-powered vehicles. Its pressure vacuum venting helps maintain proper fuel tank pressure, preventing vapor lock and ensuring optimal fuel system performance. The quick-on cam type allows for easy and secure installation without the need for additional tools. With a thread diameter of 1.78 inches and a shell diameter of 2.78 inches, this fuel cap fits tightly to prevent fuel contamination and evaporation. The green color serves as a clear indicator that this cap is intended exclusively for diesel fuel systems.

This fuel cap is compatible with a range of vehicles including Dodge Ram 1500, 2500, and 3500 models, Jeep Grand Cherokee and Liberty, Mercedes-Benz ML320 and GL320, as well as ProMaster 1500, 2500, and 3500 vans. The part number 31838D ensures you are selecting the correct replacement for your diesel vehicle.

About the Diesel Only Fuel Cap Product Line

The Gates Diesel Only Fuel Cap product line focuses on providing fuel caps specifically designed for diesel engines. These caps feature pressure vacuum venting to maintain proper tank pressure and reduce emissions. The 31838D model exemplifies this line by combining functional design with vehicle-specific fitment, ensuring compatibility and reliable performance for diesel-powered Dodge, Jeep, Mercedes-Benz, and Ram vehicles.

Common Applications and Problem Solving

• Prevents fuel evaporation and vapor lock in diesel engines
• Maintains proper pressure balance in the fuel tank
• Reduces risk of fuel contamination
• Ensures correct fitment for specific diesel vehicle models
• Replaces worn or damaged fuel caps to restore fuel system integrity

Installation Notes and Tips

• Ensure the fuel tank opening is clean before installation
• Align the quick-on cam properly to avoid cross-threading
• Hand-tighten the cap until it clicks or seats firmly
• Do not use excessive force to prevent damage to the cap or tank threads
• Verify compatibility with your vehicle’s make and model before installation

Quality Assurance and Warranty

Gates manufactures the Diesel Only Fuel Cap 31838D to meet industry standards for durability and performance. While specific warranty details are not provided here, Gates products typically come with manufacturer-backed quality assurance. Using a genuine Gates fuel cap helps maintain the integrity of your vehicle’s fuel system and supports compliance with emission regulations.