Dorman 310-204 Evaporative Emissions System Leak Detection Pump

Evaporative Leak Detection Pump for OE Fit

Dorman 310-204 is an evaporative emissions system leak detection pump built to match the fit and function of the original pump on specified applications. It is a specific-fit replacement for vehicles that need accurate EVAP system leak detection and dependable operation.

• Specific-fit evaporative emissions system leak detection pump
• Plastic housing with black finish
• Male 3-blade connector/terminal configuration
• 2-port design with 0.7 in. inlet and outlet outside diameter
• Compact dimensions: 3.8 in. diameter and 4.5 in. length
• Package contents: leak detection pump

Detailed Product Overview

This Dorman leak detection pump is engineered for direct replacement on select Jeep, Dodge, Chrysler, and Plymouth applications. It is designed to restore the EVAP system’s ability to monitor for vapor leaks, helping maintain proper emissions-system operation on vehicles such as the 2002-2004 Jeep Grand Cherokee, 2003-2004 Jeep Wrangler, and 2001-2003 Dodge Ram 1500 Van. Part number 310-204 also cross-references Standard Ignition LDP02 for the same application.

Use Dorman 310-204 when you need a replacement pump that follows the original fitment profile and connector style. This part number is also listed under interchange references including 4B1607, 4891414AD, ESM1017, and VDP02.

What This Part Helps Address

• EVAP leak detection faults
• Check engine lights related to evaporative emissions monitoring
• Failed or inconsistent leak detection pump operation
• Emissions inspection issues tied to EVAP system faults
• Replacement needs on specific Jeep Grand Cherokee, Jeep Wrangler, and Dodge Ram Van applications

Installation Notes and Tips

Verify connector style, port layout, and mounting dimensions before installation. This pump uses a male 3-blade terminal configuration and a specific-fit design, so it should be matched to the original part number and vehicle application before replacement. Confirm the EVAP system diagnosis and inspect related hoses, seals, and electrical connections during service.

Quality Assurance

Dorman engineers this evaporative emissions system leak detection pump to match original fit and function on specified applications, with a focus on reliable performance and durability. Part number 310-204 is built as a direct replacement for select Chrysler, Dodge, Jeep, and Plymouth vehicles.