0 445 124 062 | Genuine Mopar® Fuel Injector For Ram 2500, 3500

A fuel injector 0 445 124 062 is a crucial component in an internal combustion engine that delivers fuel into the engine’s combustion chamber or intake manifold in a precise, controlled manner. Its job is to ensure the engine gets the right amount of fuel at the right time for efficient combustion. Fuel Injector For Cummins Engine 6.7L Ram 2500, 3500

General Specifications

Fitment

Fitment can vary by engine build and options. Match the part number on the part you are replacing, or contact us with your vehicle details before ordering.

Purpose & Function

1. Deliver Fuel Accurately

• Supplies the exact amount of fuel the engine needs for current speed and load.

• Helps maintain optimal air-fuel ratio, usually around 14.7:1 for gasoline engines.

2. Atomize the Fuel

• Sprays fuel as a fine mist, not a stream.

• Fine mist mixes better with air, allowing complete combustion, which:

  • Produces more power

  • Reduces unburned fuel

  • Improves fuel efficiency

3. Control Timing

• Opens and closes in precise intervals controlled by the engine control unit (ECU).

• Ensures fuel enters exactly when the cylinder is ready to burn it.

4. Improve Engine Efficiency

• Proper fuel delivery means:

  • Better acceleration

  • Smooth idle

  • Lower fuel consumption

5. Reduce Emissions

• Complete combustion lowers:

  • Carbon monoxide (CO)

  • Hydrocarbons (HC)

  • Nitrogen oxides (NOx)

6. Enable Modern Engine Technologies

• Direct injection engines, turbocharging, and variable valve timing all rely on precise fuel injection for performance and efficiency.

Signs of a Bad Fuel Injector

1. Engine Misfires

• Cylinder misfires when the injector isn’t supplying enough fuel.

• Rough running at idle or under acceleration.

2. Poor Fuel Economy

• If the injector leaks or sprays too much fuel, the engine burns more fuel than necessary.

• Noticeable drop in miles per gallon (MPG).

3. Rough Idle

• Engine shakes or vibrates when stationary.

• Caused by uneven fuel delivery between cylinders.

4. Hard Starting

• Engine cranks but struggles to start.

• Often happens when injectors are clogged or not delivering fuel consistently.

5. Check Engine Light (CEL)

• Codes such as:

  • P0200–P0206 (Injector circuit issues)

  • P0300–P0306 (Cylinder misfire codes)

• CEL may blink if misfires are severe.

6. Fuel Odor

• Leaking injectors can cause strong fuel smell around the engine bay.

7. Black Smoke from Exhaust

• Too much fuel entering the combustion chamber produces rich mixture, causing black smoke.

8. Engine Knocking or Poor Performance

• Incorrect fuel spray pattern leads to incomplete combustion, which may cause knocking, hesitation, or lack of acceleration.

9. Contaminated Spark Plugs

• Spark plugs may show soot buildup or wet fuel deposits if injectors are leaking or clogged.

About Mopar

Mopar is the official parts, service, and customer care brand for Chrysler, Dodge, Jeep, Ram, and Fiat vehicles. Originally short for “Motor Parts”, Mopar was established in 1937 and is now a global brand under Stellantis.

Mopar supplies genuine OEM parts, accessories, and performance upgrades, and it supports dealerships and technicians with tools, diagnostics, and factory-backed service. Known especially among enthusiasts for its muscle car heritage, Mopar is also a major presence in motorsports and custom vehicle culture.