Mopar Fuel Filler Cap 52030377AB OEM Replacement — Factory Fit for Chrysler/Dodge/Jeep/RAM

The Mopar 52030377AB is an original-equipment fuel filler cap engineered to restore a correct seal and secure fit for compatible Chrysler, Dodge, Jeep, or RAM vehicles.

This genuine Mopar fuel filler cap replaces worn or missing caps with a factory-matched component manufactured to Mopar specifications. It restores the intended fit, form, and function for the fuel filler opening and helps maintain the appearance and integrity of the vehicle’s fuel system access point. As an OEM part, it’s produced to the same tolerances and materials used by the factory for straightforward replacement.

What does this fuel filler cap fix or replace?

This cap replaces the original fuel filler cap that threads into the fuel inlet on vehicles specified by Mopar. It is intended for cases where the existing cap is cracked, lost, or no longer seals properly. Using the correct part number ensures the cap matches the vehicle’s original mounting and sealing surfaces.

• Direct OEM replacement for worn or damaged caps
• Part number: 52030377AB to match factory inventory
• Restores proper sealing and retention at the filler neck
• Avoids fitment issues from generic, non‑OE caps

How easy is it to install the Mopar fuel filler cap?

Installation is straightforward and usually requires no tools: remove the old cap and thread the Mopar cap into place until it seats. Because it’s made to factory dimensions, alignment and threading should be smooth and predictable. If the vehicle has a tether or retaining clip, confirm compatibility before final installation.

• Tool-free installation for most applications
• Threads and seal match factory tolerances
• Check tether or retainer for secure fit if applicable
• Simple visual inspection confirms correct seating

Will this cap work with my vehicle—what should I check for compatibility?

Confirm the part number 52030377AB against your vehicle’s parts catalog or VIN to ensure a match. Mopar parts are assigned to particular model years and trims; matching the part number prevents fitment surprises. If uncertain, consult a dealer or the vehicle’s parts fiche for verification.

• Verify part number 52030377AB with your VIN or parts list
• Intended for Chrysler, Dodge, Jeep, RAM models using this OEM cap
• Dealer or official Mopar parts lookup provides definitive fitment
• Compatible with original tether or retainer if specified

Why choose an OEM Mopar cap instead of an aftermarket option?

OEM caps are manufactured to the same standards and materials used at the factory, which helps ensure correct threading, sealing surfaces, and long-term fit. That reduces the chance of fuel vapor leaks, check-engine lights from evaporative system faults, or poor cosmetic fit. OEM parts also simplify future maintenance or warranty considerations.

• Factory-spec materials and dimensions for reliable fit
• Minimizes evaporation and venting problems when correctly installed
• Supports consistent appearance at the filler opening
• Easier parts identification for later service or replacement

Who this is for: Drivers and vehicle owners who need a straightforward, factory-matching replacement for a damaged, missing, or failing fuel filler cap. It’s suitable for those who prioritize exact fit, original appearance, and the assurance of Mopar-specified manufacturing—especially useful before inspections or when addressing fuel-system warnings tied to the filler cap. If you want the same cap the vehicle left the factory with, the Mopar 52030377AB provides that direct OEM solution.