Dorman Evaporative Emissions Leak Detection Pump 310-233 — OE-Style Direct-Fit for Chrysler/Dodge/Jeep (Restores EVAP Function)

The Dorman 310-233 is an OE-style evaporative emissions leak detection pump engineered to restore vapor-tight operation and replace a failed or clogged original unit on compatible vehicles.

This replacement pump is built to match the fit and function of factory components for a range of Chrysler, Dodge, Jeep, Fiat and Mitsubishi models. Constructed from durable materials and supported by Dorman’s product expertise, it helps reestablish proper evaporative emission system operation when the original pump no longer performs. Before buying, verify your vehicle’s year, make and trim with the garage tool to ensure exact fitment.

How does this pump replicate the original equipment performance?

The 310-233 is designed to mirror the dimensions, mounting points and electrical connections of the factory leak detection pump so it installs without modification. That OE-style compatibility reduces installation time and risk of leaks or electrical mismatch. Dorman focuses on parts that restore factory function rather than requiring adaptations.

• Direct-fit mounting and connector compatibility for specified applications
• Materials selected for resistance to fuel vapors and heat
• Balanced flow characteristics to recreate original system behavior

What common problems does replacing this pump resolve?

Failing leak detection pumps can cause persistent check-engine lights, failed emissions tests, or activated fault codes related to EVAP system integrity. Swapping in a reliable replacement eliminates pump-related blockages, electrical shorts or worn internal valves that impair system pressurization and diagnostics. It’s a targeted fix for EVAP faults when diagnostics point to pump failure.

• Stops EVAP-related diagnostic trouble codes when pump is defective
• Restores the system’s ability to pressurize and test for leaks
• Prevents recurring diagnostic cycles caused by intermittent pump operation

What vehicles and model years are compatible with part 310-233?

This Dorman pump fits a list of specific makes and model years where the factory pump shares the same form and function. Compatibility includes several Chrysler, Dodge, Jeep, Fiat and Mitsubishi vehicles—always confirm with the vehicle lookup before purchasing. Installing the wrong variant can lead to poor fit or electrical incompatibility.

• Chrysler 200 (2015–2017), Chrysler 300 (2007)
• Dodge Dakota/Ram Dakota (2007–2011 depending on model year), Dodge Dart (2013–2016)
• Dodge Ram 1500 (2007–2008), Fiat 500X (2016–2018)
• Jeep Cherokee (2014–2019), Compass (2018–2019), Renegade (2015–2018), Mitsubishi Raider (2007–2009)

How should I install and verify the new leak detection pump?

Installation typically involves disconnecting the battery, removing the old pump from its bracket, swapping electrical and vacuum connections, then testing the EVAP system for proper sealing and pump operation. After mounting, clear related fault codes and run the vehicle’s self-test or a smoke test if available. Confirm no fuel vapor leaks and that the check-engine light remains off after a drive cycle.

• Disconnect battery and remove old pump and electrical plug
• Install new pump, reattach connectors and secure mounting hardware
• Clear codes, run EVAP self-test or smoke check, verify no leaks

Who is this for: The Dorman 310-233 is aimed at DIY mechanics and professional repair shops needing a dependable, direct-replacement evaporative emissions leak detection pump for the listed Chrysler, Dodge, Jeep, Fiat and Mitsubishi models. It’s the right choice when diagnostics point to a malfunctioning pump, when the EVAP system fails inspection, or when customers require a durable OE-style replacement backed by Dorman’s technical support.