🔧 Outback - Rear Turn Signal Bulb Replacement

You’ll remove the rear tail lamp assembly, swap the turn-signal bulb, and reinstall everything without damaging the clips or cracking the lens. Doing both sides together is smart so color and brightness match.

Difficulty Level: Beginner | Estimated Time: 0.5-1.0 hours

Assumption: rear turn bulb is 7440A (amber) and lamp uses 10mm retaining nuts inside the cargo area.

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⚠️ Safety & Precautions

• ⚠️ Turn the lights off and remove the key before starting.
• ⚠️ Let bulbs cool first; they can be hot right after use.
• ⚠️ Don’t touch the glass of the new bulb with bare fingers; skin oils can shorten bulb life.
• ⚠️ Pull the tail lamp straight back; twisting can break the plastic guide pins.

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🔧 Required Tools

You'll need the following tools for this repair:

• 10mm socket
• 1/4" drive ratchet
• 6" extension (1/4" drive)
• Trim removal tool
• Needle-nose pliers
• Flashlight
• Torque wrench (in-lb or small Nm range)
• Nitrile gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Rear turn signal bulb (amber 7440A) - Qty: 2 (replace in pairs)

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📋 Before You Begin

• Park your Outback on level ground and set the parking brake.
• Open the rear liftgate for access and good lighting.
• Lay a towel on the bumper edge under the tail lamp area to prevent scratches.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Access the tail lamp fasteners

• Open the liftgate and locate the small interior access cover behind the tail lamp (inside the cargo area trim).
• Use a trim removal tool to gently pop the access cover open. Go slow to avoid breaking tabs.
• Use a flashlight to look inside and find the tail lamp retaining nuts.

Step 2: Remove the tail lamp retaining nuts

• Use a 10mm socket, 1/4" drive ratchet, and 6" extension (1/4" drive) to remove the retaining nuts.
• If a nut is tight in a cramped spot, use needle-nose pliers to start it by hand after loosening.
• Set the nuts somewhere safe so they don’t fall into the body cavity.

Step 3: Remove the tail lamp assembly

• With the nuts removed, hold the lamp with both hands and pull it straight rearward.
• If it feels stuck, wiggle gently while pulling straight back—do not pry on the lens.
• Support the lamp so it doesn’t dangle and scratch the paint.

Step 4: Remove the rear turn signal bulb socket

• Locate the turn signal bulb socket on the back of the lamp assembly.
• Twist the socket counterclockwise by hand to unlock it and pull it out.
• A “socket” is the plastic holder the bulb locks into.

Step 5: Replace the bulb

• Wear nitrile gloves to keep oils off the new bulb.
• Pull the old bulb straight out of the socket.
• Push the new rear turn signal bulb (amber 7440A) straight into the socket until fully seated.

Step 6: Reinstall the socket and test

• Reinstall the socket into the lamp and twist clockwise to lock.
• Before bolting the lamp back on, turn the ignition on and test the rear turn signal and hazards.
• If it doesn’t light, turn the ignition off and re-seat the bulb and socket.

Step 7: Reinstall the tail lamp assembly

• Align the lamp’s guide pins with the body holes, then push the lamp straight into place.
• Install the retaining nuts by hand first (to avoid cross-threading), then tighten with a 10mm socket and 1/4" drive ratchet.
• Torque to 5 Nm (44 in-lbs) if using a torque wrench (in-lb or small Nm range).
• Snap the interior access cover back into place by hand.

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✅ After Repair

• Test left and right rear turn signals, hazards, and parking lights.
• Check that the tail lamp sits flush and doesn’t wobble.
• After the next car wash or rain, check for moisture inside the lens (a sign the lamp isn’t seated correctly).

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💰 DIY vs Shop Cost

Shop Cost: $60-$150 (parts + labor)

DIY Cost: $8-$30 (parts only)

You Save: $52-$120 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.5-1.0 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.