YCT EVAP Leak Detector Pump EVAP 310-215 (OE 4B1591) for Chrysler/Dodge/Jeep/Ram — Direct Replacement, OEM Fit

The YCT EVAP 310-215 is a direct-replacement evaporative emissions fuel vapor leak detector pump (OE-equivalent 4B1591) designed to restore proper EVAP purge diagnostics on compatible Chrysler, Dodge, Jeep and Ram vehicles.

This replacement EVAP leak detector pump is engineered to match the original equipment fit and function for multiple model years and engine configurations. It helps the onboard diagnostics perform vapor leak detection by pressurizing or monitoring the EVAP system when commanded by the vehicle’s computer. Before ordering, verify the part number and the vehicle year/make/model against the compatibility list to avoid returns and installation delays.

Which vehicles and part numbers does this replace?

The YCT EVAP 310-215 replaces a range of OE references, making it suitable for many Chrysler, Dodge, Jeep and Ram models. Always cross-check the printed part number on your original unit against the listed replacements to confirm compatibility.

• OE references replaced: 4B1591, ESM1001, LDP14, VDP14, 4861962AA/AB/AC, 4891685AA/AB, 52129436AB
• Compatible Chrysler models: 200 (2011–2014), 300 (2008–2019), Pacifica (2007–2019), Sebring (2008–2010), Town & Country (2008–2016)
• Compatible Dodge models: Caliber, Challenger, Charger, Grand Caravan, Ram 1500/2500/3500 (various years listed)
• Compatible Jeep & Ram: Compass, Liberty, Patriot, Wrangler (including JK), Ram 2500/3500/4500/5500 (selected years)

How does this unit fit and what should I check before buying?

Installation is intended to be a direct swap for vehicles that used the original EVAP pump referenced above. Visual verification of mounting points, electrical connector style and hose fitting locations helps prevent ordering the wrong unit.

• Compare the OE part number on your old pump to the replacement list.
• Inspect connector shape, mounting bracket, and hose ports for a match.
• Confirm model year ranges in the compatibility list before purchase.

What are the practical benefits of replacing a failing EVAP leak detector pump?

Replacing a malfunctioning EVAP leak detector pump can allow the vehicle’s emissions controls to run correct leak tests and may clear related trouble codes once the system is verified. A correct replacement restores the pump’s intended mechanical and electrical characteristics for reliable onboard diagnostics.

• Restores EVAP system diagnostic capability for leak detection.
• Helps prevent false or persistent EVAP-related trouble codes.
• Designed to match original pump mounting and electrical connections.

Can I return the pump if it doesn’t fit my vehicle?

If the part doesn’t fit, YCT requests the unit be returned in undamaged original packaging so it can be processed. Save photos of the original part and your vehicle’s mounting area to speed resolution.

• Keep the original packaging and avoid damaging the pump during trial fitting.
• Contact the seller with photos if you receive an incompatible part.
• Confirm return instructions before shipping the item back.

Who is this for: The YCT EVAP 310-215 pump is aimed at DIY mechanics, independent shops and fleet technicians who need a proven OE-style replacement for EVAP leak detection components on supported Chrysler, Dodge, Jeep and Ram models. It’s appropriate for owners troubleshooting EVAP trouble codes or replacing a failed pump as part of emissions system maintenance. Remember to confirm part numbers and physical connector/mount matches before purchasing to ensure a trouble-free installation.