Mopar Performance 68525698AA Natural Vacuum Leak Detection Pump

The Mopar Performance 68525698AA is a genuine OEM Natural Vacuum Leak Detection (NVLD) pump designed for Chrysler, Dodge, Jeep, Ram, and Alfa Romeo vehicles. This component is also known as a Fuel Tank Pressure Sensor or Fuel Vapor Sensor, and serves as a critical part of your vehicle's Evaporative Emission Control (EVAP) system.

Function and Purpose:

This leak detection pump introduces pressurized air into the EVAP system to check for leaks, capable of identifying a leak equivalent to a 0.020 inch (0.5 mm) hole reliably. The Natural Vacuum Leak Detection (NVLD) system represents the next generation of evaporative leak detection systems and replaces the leak detection pump as the method of evaporative system leak detection on many modern vehicles. The fundamental leak detection principle employed by NVLD is based on the Gas Law, which states that the pressure in a sealed vessel will change if the temperature of the gas within it changes.

Key Features:

• Genuine Mopar OEM part for guaranteed fit and quality
• Detects very small evaporative system leaks with high accuracy
• Features a normally open vacuum switch, a normally closed solenoid, and a seal actuated by both the solenoid and a diaphragm
• Helps vehicles meet strict EPA and CARB emissions standards
• Supersedes earlier part numbers 04593949AA and 04593949AB

Applications:

This component is compatible with multiple engine types including 5.7L V8 HEMI HEV, 1.4L I4 16V MultiAir Turbo, 1.4L I4 MultiAir 16V, 5.7L V8 HEMI CNG, 5.7L V8 HEMI VVT, and 6.4L Heavy Duty V8 HEMI with MDS. Compatible with various Chrysler, Dodge, Jeep, Ram, and Alfa Romeo models from 2011-2022.

Why Replace:

A failing leak detection pump can trigger diagnostic trouble codes (P0440, P0441, P0456) and illuminate the check engine light. The leak detection pump helps monitor and maintain the integrity of the fuel system, making sure that fuel vapors are captured and directed to the engine for combustion rather than released into the environment. Replacing a faulty unit ensures proper emissions system operation and helps your vehicle pass emissions testing.

This is a direct replacement component that installs in the same location as your original factory pump, typically mounted near or on the fuel tank assembly.