Gedlex EVAP Leak Detection Pump for Dodge Ram Jeep Fiat Chrysler — 310-219 Direct Replacement, OE Fit

Gedlex 310-219 is a direct-replacement evaporative emissions system (EVAP) leak detection pump engineered to locate fuel vapor leaks on compatible 2007–2019 Dodge, Ram, Jeep, Fiat, Chrysler and Alfa Romeo models.

This replacement module is built to match OE fitment and restore the EVAP system’s ability to pressurize and test for vapor leaks. Manufactured from durable automotive-grade plastic, the Gedlex pump works with a wide range of part numbers (4B1593, ESM1003, LDP12/VDP12 and several OEM codes) and is compatible with multiple model years and trims. Installing a functioning leak detection pump helps the vehicle complete onboard diagnostics and can eliminate fault codes tied to EVAP system failures.

Which vehicles will this Gedlex EVAP leak detection pump fit?

The Gedlex 310-219 covers many Chrysler Group and FCA platforms across model years listed by the manufacturer. Always verify the existing pump’s part number and compare electrical connectors and mounting points before purchase.

• Chrysler Aspen: 2007–2009
• Dodge Durango: 2007–2009 and 2011–2019; Dodge Nitro: 2007–2011; Dodge Ram 1500 (pickup models): 2009–2010
• Ram 1500: 2011–2019; ProMaster series: 2015–2019 (City, Rapid, 1500/2500/3500 depending on year)
• Jeep Liberty: 2008–2012; Jeep Grand Cherokee: 2011–2019
• Fiat 500 and 500L: select years 2012–2018; Alfa Romeo 4C: 2015–2019

How does this pump help resolve EVAP-related fault codes?

The pump pressurizes the sealed EVAP system so the vehicle’s onboard diagnostics can detect pressure loss from leaks. Replacing a failed pump often clears persistent codes tied to the EVAP test, such as EVAP leak or purge control faults, when the rest of the system is in good condition.

• Restores EVAP pressurization for onboard leak testing
• Works with diagnostic routines that identify small vapor leaks
• Can eliminate false-positive EVAP fault codes when installed correctly

What are the construction and compatibility details I should know?

Gedlex leak detection pumps are molded from resilient plastic designed for long-term exposure in the engine bay environment. The unit is supplied as a replacement pump—confirm OEM cross-reference numbers and connector type to ensure proper match with your vehicle’s harness and bracketry.

• Material: automotive-grade plastic housing for corrosion resistance
• Cross-reference part numbers included: 4B1593, ESM1003, LDP12, VDP12, 4861959AA/AB/AC, 52855827AA/AB
• Designed to match OEM electrical and mounting interfaces on compatible vehicles

What should I check before ordering and during installation?

Confirm your vehicle’s year, model, and the current pump’s part number. During installation, inspect hoses, seals, and clamps in the EVAP circuit; a new pump will not fix leaks caused by degraded lines or damaged fittings.

• Compare the old unit’s part number and connector with Gedlex 310-219
• Examine EVAP hoses, vapor lines, and charcoal canister for damage
• Follow manufacturer torque specs and routing for mounting and electrical connection

Who is this for: The Gedlex 310-219 leak detection pump is intended for DIY mechanics and professional technicians replacing a faulty EVAP test pump on compatible Dodge, Ram, Jeep, Chrysler, Fiat or Alfa Romeo models. It’s suited for anyone needing an affordable, OE-referenced replacement to restore EVAP leak-testing function—provided the rest of the system is intact and matching part numbers are confirmed before purchase.