Dorman Evaporative Emissions Leak Detection Pump 310-233 — Direct-Fit EVAP Replacement for Chrysler/Dodge/Jeep (Durable, OEM Fit)

The Dorman 310-233 is a direct-fit evaporative emissions system leak detection pump engineered to restore proper EVAP testing and sealing on compatible Chrysler, Dodge, Jeep, Fiat, Ram and Mitsubishi vehicles.

This replacement leak detection pump is manufactured to replicate the form, fit and basic function of the original unit so you can address an EVAP fault without modifying the vehicle. Built from durable components and backed by Dorman’s automotive expertise, the 310-233 is intended for drivers and technicians who need a reliable way to replace a failed or clogged pump. Always verify vehicle compatibility by entering your make, model and trim into the garage tool before ordering.

How does this pump help resolve EVAP system faults?

The leak detection pump pressurizes or evacuates the fuel vapor lines during OBD-II EVAP testing so the vehicle’s control module can check for leaks. When the original pump fails or becomes blocked, the system may throw a check-engine light or prevent the car from completing readiness tests. Replacing the defective pump with a properly fitting unit restores the EVAP test capability and helps clear related diagnostic trouble codes once repairs are verified.

• Replaces failed or clogged factory pump to restore EVAP testing
• Helps clear system faults after repair and re-test
• Fits specific vehicle applications without modification

What vehicles are compatible with the Dorman 310-233?

This pump is compatible with a set of model years across several makes; compatibility must be confirmed for each vehicle’s exact year and trim. Common fitments include Chrysler 200 and 300; multiple Dodge and Ram platforms; Jeep Cherokee, Compass and Renegade; Fiat 500X; and Mitsubishi Raider. Use the listing or the site’s garage tool to confirm fit before purchase.

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

What are the build features and expected benefits of this replacement pump?

Dorman designs this pump to match OEM dimensions and mounting points while using materials selected for longevity in under-vehicle and engine-bay environments. The goal is consistent operation during EVAP test cycles and resistance to common failure modes such as contamination and wear. Installation typically requires basic mechanical tools and minimal disassembly of surrounding EVAP plumbing.

• Direct-replacement design for correct fit and connections
• Durable construction for extended service life
• Manufacturing and quality oversight backed by automotive experience

How easy is it to install and verify proper operation?

Installation is straightforward for a DIYer or professional with basic automotive experience: remove the failed pump, install the new unit using existing mounting points and reconnect hoses and electrical connectors. After installation, clearing codes and performing a drive cycle or EVAP diagnostic check will confirm the repair. If unsure, consult a repair manual or technician for vehicle-specific steps and torque values.

• Swap-in replacement using original mounting points and connectors
• Verify operation by clearing codes and running an EVAP readiness test
• Refer to vehicle service documentation for detailed steps

Who is this for? The Dorman 310-233 leak detection pump is intended for vehicle owners, independent mechanics and fleet maintenance teams who need a dependable replacement for a malfunctioning EVAP test pump. It’s suitable when the vehicle exhibits EVAP-related trouble codes, failed readiness checks, or a known pump failure, and when an OEM-equivalent part fit is required without extensive modification. Always confirm fitment with the garage tool to ensure correct application before purchasing.