Dorman 310-500 Evaporative Emissions System Leak Detection Pump

Evaporative Emissions Leak Detection Pump

Dorman 310-500 is an evaporative emissions system leak detection pump built to match the fit and function of the original pump on specified vehicles. It is a direct replacement for applications that need a specific-fit EVAP leak detection pump with a 2-port layout and male 3-blade connector.

Compatible with select Chrysler, Dodge, and Jeep models, including Chrysler PT Cruiser, Dodge Caravan, and Jeep Liberty applications. If you are diagnosing an EVAP leak code or replacing a failed pump on a Chrysler PT Cruiser, Dorman 310-500 provides an OE-style replacement path for the original evaporative emissions component.

Key Features

• Specific-fit evaporative emissions system leak detection pump
• Designed to match original fit and function on listed applications
• Plastic housing with black finish
• 2-port configuration with 0.7 in. inlet and outlet outside diameter
• Male 3-blade connector/terminal configuration
• Compact dimensions: 5.1 in. diameter and 2.2 in. length
• Cross-reference part numbers include 4B1606 and 4891427AB

Detailed Description

Dorman 310-500 is engineered for evaporative emissions system service where the original leak detection pump has failed or no longer seals correctly. The unit is built for specific applications and follows the original pump’s fitment profile, making it a direct replacement for vehicles such as the Dodge Caravan, Chrysler Town & Country, and Jeep Wrangler. The Dorman 310-500 part number is also referenced for Chrysler PT Cruiser and Dodge Ram applications listed in the fitment data.

This pump is designed for EVAP system diagnostics and repair on vehicles that rely on leak detection to monitor fuel vapor integrity. Its plastic construction, two-port layout, and male 3-blade electrical connection support straightforward replacement of the original component on the listed Chrysler, Dodge, and Jeep models.

What It Helps Fix

• EVAP leak-related diagnostic trouble codes
• Failed leak detection pump operation
• Fuel vapor system sealing concerns
• Check engine light conditions tied to evaporative emissions faults
• Inspection failures caused by EVAP system leaks

Installation Notes and Tips

Verify connector style, port size, and mounting location before installation. This specific-fit pump uses a male 3-blade connector and 0.7 in. inlet and outlet outside diameters, so matching the original configuration is important for proper installation. Confirm the vehicle application against the fitment list for Chrysler PT Cruiser, Dodge Caravan, Dodge Grand Caravan, Jeep Liberty, and other listed models before replacing the original unit.

Quality Assurance

Dorman designs this evaporative emissions leak detection pump to match original fit and function on specified applications and to deliver reliable performance and durability in service. The part number 310-500 is built as a direct replacement for the listed OE-style applications.