🔧 F-350 Super Duty - Engine Air Filter Replacement

The engine air filter keeps dust and debris out of your engine. Replacing it restores airflow, helps fuel economy, and protects the engine from wear.

Difficulty Level: Beginner | Estimated Time: 10-20 minutes

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⚠️ Safety & Precautions

• ⚠️ Work on a cool engine so you don’t burn yourself.
• ⚠️ Keep dirt out of the intake tube—don’t leave the airbox open longer than needed.
• ⚠️ Do not start the engine with the filter removed.
• ⚠️ Battery disconnect is not required for this job.

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🔧 Required Tools

You'll need the following tools for this repair:

• Safety glasses
• Nitrile gloves
• Flashlight
• Clean shop towel

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Engine air filter - Qty: 1

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📋 Before You Begin

• 🅿️ Park on level ground, shift to Park, and set the parking brake.
• 🧊 Let the engine cool for at least 15 minutes if it was running.
• 🧼 Have a clean towel ready so nothing falls into the intake.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Open the hood and find the airbox

• Open the hood and support it securely.
• Use a flashlight to locate the airbox (the plastic box that holds the engine air filter) in the engine bay.

Step 2: Unclip the airbox lid

• Use your hands (wear nitrile gloves) to release the metal retaining clips around the airbox lid.
• If it fights you, wiggle the clip—don’t pry hard.

Step 3: Lift the lid and remove the old filter

• Carefully lift the airbox lid just enough to access the filter (you usually don’t need to remove the whole lid).
• Pull the old filter straight out and set it aside.

Step 4: Clean the airbox sealing surface

• Use a clean shop towel to wipe out loose dust inside the lower airbox.
• Make sure the sealing edge (where the filter sits) is clean and dry.

Step 5: Install the new air filter

• Place the new filter into the lower airbox the same way the old one came out.
• Check that the filter sits flat all the way around and isn’t pinched.

Step 6: Close the airbox and re-latch the clips

• Lower the airbox lid fully into place.
• Snap all retaining clips back on by hand.
• Use a flashlight to confirm the lid is evenly seated all the way around.

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✅ After Repair

• ✅ Start the engine and let it idle for 10-20 seconds.
• ✅ Listen for a hissing/whistling sound (can mean the airbox lid isn’t sealed).
• ✅ Recheck that all clips are fully latched.

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💰 DIY vs Shop Cost

Shop Cost: $60-$140 (parts + labor)

DIY Cost: $20-$60 (parts only)

You Save: $40-$80 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.2-0.5 hours.

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🎯 Ready to get started?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.