For truck owners who rely on performance and durability, few parts are as important as the fuel filter. In diesel engines like the 6.7 Cummins, clean fuel is critical to keep injectors, pumps, and the engine running at peak efficiency. One of the most trusted options is the Mopar Fuel Filter 68002433AC, designed specifically to meet OEM standards for Ram trucks.

In this guide, we’ll cover everything you need to know about the 68002433AC filter, from its purpose and replacement intervals to expert tips that extend your truck’s lifespan.

Why the Mopar 68002433AC Fuel Filter Matters

Fuel is rarely 100% clean. Even high-quality diesel may contain small amounts of dirt, water, or rust that can damage your engine over time. The Mopar 68002433AC fuel filter acts as a safeguard, trapping contaminants before they reach sensitive components like the fuel injectors.

Without regular filter maintenance, you risk:

  • Clogged injectors that cause rough idling

  • Restricted fuel flow and loss of power

  • Poor fuel efficiency

  • Expensive fuel pump or injector replacement

For Ram owners, using the OEM Mopar fuel filter ensures compatibility, superior filtration, and long-term protection compared to aftermarket alternatives.

Key Features of Mopar 68002433AC

What sets this filter apart?

  • OEM Certified – Built to exact specifications for Cummins-powered Ram trucks.

  • Durable Construction – Designed to handle the demands of diesel fuel systems.

  • Efficient Filtration – Removes dirt, rust, and debris to maintain clean fuel flow.

  • Perfect Fit – No need for modifications, ensuring a quick and secure installation.

When to Replace Mopar 68002433AC

Knowing when to replace your fuel filter is crucial. While the general rule for diesel filters is every 15,000–25,000 miles, the exact interval may vary based on driving conditions.

  • Normal driving: Replace around 20,000 miles.

  • Heavy towing or off-road use: Replace closer to 15,000 miles.

  • Contaminated fuel environments: Consider shorter intervals.

Always check your Ram truck’s owner’s manual for the manufacturer’s recommendation.

Signs Your Fuel Filter Needs Replacement

1. Hard Starting or No Start

A clogged filter restricts fuel flow, making your truck struggle to start or fail to start altogether.

2. Power Loss During Acceleration

If your Ram feels sluggish, especially when towing or driving uphill, the fuel filter may be the culprit.

3. Poor Fuel Economy

When the engine works harder to pull fuel through a blocked filter, efficiency suffers.

4. Rough Idling or Stalling

Inconsistent fuel supply often results in vibrations, stalling, or misfires.

5. Warning Lights

A check engine light or low fuel pressure warning may indicate a clogged filter.

How to Replace Mopar Fuel Filter 68002433AC

Replacing the 68002433AC fuel filter is a straightforward process if you’re comfortable with basic maintenance. Here’s a step-by-step guide:

Tools & Supplies You’ll Need

  • Mopar 68002433AC replacement filter

  • Wrench or socket set

  • Drain pan

  • Safety gloves and eyewear

Step 1: Relieve Fuel System Pressure

Turn off the engine and disconnect the battery to ensure safety.

Step 2: Locate the Fuel Filter

In most Ram trucks with a Cummins engine, the fuel filter is near the fuel tank or in the engine bay.

Step 3: Remove the Old Filter

Use a wrench to carefully remove the old filter. Place a drain pan underneath to catch any fuel spillage.

Step 4: Install the New Mopar 68002433AC Filter

Lubricate the gasket with clean fuel or oil, then screw the new filter in place securely.

Step 5: Prime the Fuel System

Some trucks require manual priming or key cycling to remove air pockets before starting.

Expert Tips for Longer Fuel System Life

  • Always use OEM filters like Mopar 68002433AC to ensure proper fit and protection.

  • Replace both primary and secondary filters if your truck has a dual system.

  • Buy fuel from reputable stations to avoid contaminated diesel.

  • Pair with regular maintenance such as oil changes and air filter replacements.

Why Choose Mopar OEM Filters Over Aftermarket

While aftermarket filters may be cheaper, they often cut corners on filtration quality. Mopar’s 68002433AC filter is engineered for Cummins engines, giving you peace of mind that it will protect your investment. OEM parts are tested under strict standards, ensuring reliability and durability.

Final Thoughts

The Mopar Fuel Filter 68002433AC is more than just a replacement part—it’s an essential line of defense against costly fuel system problems. By replacing it at the right intervals, using OEM components, and paying attention to warning signs, you’ll keep your Ram truck running strong for years.

Don’t wait until your truck shows symptoms of a clogged filter. Stay ahead with scheduled maintenance and protect your engine’s performance and efficiency.

FAQs

1. What vehicles use the Mopar 68002433AC fuel filter?
It is designed primarily for Ram trucks equipped with the 6.7L Cummins diesel engine.

2. How often should I replace the Mopar 68002433AC filter?
Every 15,000–25,000 miles, depending on driving conditions and fuel quality.

3. Can I use aftermarket filters instead of Mopar?
While possible, OEM Mopar filters provide the best fit and filtration quality for Cummins engines.

4. Is it difficult to replace the 68002433AC fuel filter myself?
No. With basic tools and proper safety steps, most truck owners can do it at home.

5. What happens if I don’t replace my fuel filter on time?
Delaying replacement can cause engine misfires, poor performance, fuel pump damage, and expensive repairs.