🔧 Tucson - Front Wheel Bearing Replacement

This guide covers replacing a front wheel bearing on your Tucson. The front bearing is pressed into the steering knuckle, so the hub and knuckle must be removed and the bearing pressed out/in with a hydraulic press or hub bearing service kit.

Assumption: This procedure is for one front wheel bearing. Rear bearing service is different because your Tucson AWD uses a rear hub/bearing assembly.

Difficulty Level: Advanced | Estimated Time: 3-5 hours per side

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⚠️ Safety & Precautions

• ⚠️ Support your Tucson with jack stands before working under or beside it. Never rely on a jack alone.
• ⚠️ The axle nut is very tight. Loosen it only with the vehicle safely on the ground or the hub locked from turning.
• ⚠️ Do not pull or stretch the ABS wheel speed sensor wire. ABS means anti-lock braking system, and its sensor is fragile.
• ⚠️ Use a hydraulic press carefully. A press uses very high force and can eject parts if they are not supported squarely.
• ⚠️ Replace the axle nut if your replacement parts include a new one. Staked or locking axle nuts are generally one-time-use.
• ⚠️ After the repair, pump the brake pedal before driving so the brake pads seat back against the rotor.

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🔧 Required Tools

You'll need the following tools for this repair:

• Floor jack (rated 2-ton minimum)
• Jack stands (rated 2-ton minimum)
• Wheel chocks
• Safety glasses
• Mechanic gloves
• 1/2-inch drive breaker bar
• 1/2-inch drive torque wrench (250 ft-lb capacity)
• 3/8-inch drive torque wrench (100 ft-lb capacity)
• 21mm socket
• 32mm axle nut socket
• 14mm socket
• 17mm socket
• 19mm socket
• 10mm socket
• Ratchet handle
• Combination wrench set 10mm-21mm
• Flat-head screwdriver
• Needle-nose pliers
• Ball joint separator (specialty)
• Tie rod end puller (specialty)
• Hub puller (specialty)
• Hydraulic press 12-ton minimum (specialty)
• Wheel bearing press adapters (specialty)
• Snap ring pliers (specialty)
• Dead blow hammer
• Rubber mallet
• Pry bar
• Paint marker
• Wire brush
• Brake cleaner
• Bungee cord

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Front wheel bearing - Qty: 1 per side
• Front axle nut - Qty: 1 per side
• Front hub snap ring - Qty: 1 per side
• Brake cleaner - Qty: 1 can
• Anti-seize compound - Qty: 1 small tube

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📋 Before You Begin

• Park your Tucson on level ground, shift to Park, and apply the parking brake.
• Place wheel chocks behind the rear wheels.
• Do not disconnect the battery for this repair.
• Mark the strut-to-knuckle position with a paint marker before removal. This helps keep alignment close until you can have it checked.
• A hydraulic press is strongly recommended. If you do not have one, remove the steering knuckle and take it to a machine shop for bearing pressing.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Loosen the Wheel Nuts and Axle Nut

• Use a 21mm socket and breaker bar to loosen the front wheel nuts about half a turn while the tire is still on the ground.
• Use a flat-head screwdriver to remove the center cap if it blocks access to the axle nut.
• Use a 32mm axle nut socket and breaker bar to loosen the axle nut while the vehicle is on the ground.
• Do not fully remove it yet.

Step 2: Raise and Support the Vehicle

• Use a floor jack to lift the front corner of your Tucson at the proper front jacking point.
• Place a jack stand under the reinforced support point.
• Lower the vehicle gently onto the jack stand and keep the floor jack lightly touching as backup.
• Use a 21mm socket to remove the wheel nuts, then remove the wheel.

Step 3: Remove the Brake Caliper and Rotor

• Use a 14mm socket to remove the brake caliper slide pin bolts.
• Lift the caliper off the bracket and hang it from the spring using a bungee cord.
• Do not let the caliper hang by the rubber brake hose.
• Use a 17mm socket to remove the caliper bracket bolts.
• Remove the brake rotor by pulling it straight off the hub.
• If stuck, tap around the rotor hat with a dead blow hammer.
• During installation later, tighten the caliper bracket bolts to Torque to 78-86 Nm (58-63 ft-lbs).
• During installation later, tighten the caliper slide pin bolts to Torque to 22-32 Nm (16-24 ft-lbs).

Step 4: Remove the ABS Wheel Speed Sensor

• Use a 10mm socket to remove the ABS sensor bolt from the steering knuckle.
• Gently twist and pull the sensor out by hand.
• If it is stuck, use a flat-head screwdriver carefully around the edge, not against the wire.
• Move the sensor aside so it cannot be damaged.
• During installation later, tighten the ABS sensor bolt to Torque to 7-10 Nm (62-89 in-lbs).

Step 5: Remove the Axle Nut

• Use a 32mm axle nut socket to remove the loosened axle nut fully.
• Push the axle inward through the hub by hand.
• If stuck, thread the old axle nut on a few turns and tap it with a rubber mallet.
• Do not hit the axle threads directly with a steel hammer.

Step 6: Disconnect the Tie Rod End

• Use a 17mm socket or wrench to remove the outer tie rod end nut.
• Use a tie rod end puller to separate the tie rod from the steering knuckle.
• A tie rod end puller safely presses the tapered joint apart without damaging the steering part.
• During installation later, tighten the tie rod end nut to Torque to 24-34 Nm (18-25 ft-lbs).

Step 7: Disconnect the Lower Ball Joint

• Use a 17mm socket or wrench to remove the lower ball joint nut.
• Use a ball joint separator to release the lower ball joint from the steering knuckle.
• A ball joint separator is a tool that separates tapered suspension joints without prying dangerously.
• During installation later, tighten the lower ball joint nut to Torque to 60-72 Nm (44-53 ft-lbs).

Step 8: Unbolt the Steering Knuckle from the Strut

• Use a paint marker to mark the strut-to-knuckle position.
• Use a 19mm socket and wrench to remove the two strut-to-knuckle bolts and nuts.
• Support the knuckle by hand as the last bolt comes out.
• Pull the steering knuckle outward while guiding the axle spline out of the hub.
• During installation later, tighten the strut-to-knuckle bolts to Torque to 140-160 Nm (103-118 ft-lbs).

Step 9: Press the Hub Out of the Bearing

• Place the steering knuckle in a hydraulic press with proper wheel bearing press adapters.
• Support the knuckle evenly so the hub can press out straight.
• Use the hydraulic press to press the hub out of the old bearing.
• The inner bearing race may stay stuck on the hub.
• If the race remains, remove it with proper press adapters or a bearing splitter if available.
• Press only on supported metal surfaces.

Step 10: Remove the Snap Ring and Old Bearing

• Use snap ring pliers to remove the snap ring from the steering knuckle.
• A snap ring is a spring steel retaining clip that locks the bearing in place.
• Use a wire brush and brake cleaner to clean dirt and rust from the snap ring groove.
• Place the knuckle back in the hydraulic press with wheel bearing press adapters.
• Press the old bearing out of the steering knuckle.

Step 11: Press In the New Bearing

• Clean the bearing bore using a wire brush and brake cleaner.
• Position the new front wheel bearing squarely in the steering knuckle.
• Use the hydraulic press and wheel bearing press adapters to press the new bearing into the knuckle.
• Press only on the outer race of the bearing. The race is the solid outer ring of the bearing.
• Do not press through the bearing balls or rollers.
• Use snap ring pliers to install the new snap ring fully into its groove.

Step 12: Press the Hub Into the New Bearing

• Support the inner race of the new bearing with the correct wheel bearing press adapter.
• Use the hydraulic press to press the hub into the new bearing.
• Make sure the hub turns smoothly by hand after pressing.
• If it feels rough or tight, stop and inspect before reinstalling.

Step 13: Reinstall the Steering Knuckle

• Guide the axle splines through the hub by hand.
• Lift the steering knuckle into position against the strut.
• Use a 19mm socket and wrench to install the strut-to-knuckle bolts.
• Align your paint marks as closely as possible.
• Tighten the strut-to-knuckle bolts to Torque to 140-160 Nm (103-118 ft-lbs).

Step 14: Reconnect the Ball Joint and Tie Rod

• Use a 17mm socket to install the lower ball joint nut.
• Tighten the lower ball joint nut to Torque to 60-72 Nm (44-53 ft-lbs).
• Use a 17mm socket to install the outer tie rod end nut.
• Tighten the outer tie rod end nut to Torque to 24-34 Nm (18-25 ft-lbs).

Step 15: Reinstall the ABS Sensor

• Use brake cleaner on a rag to clean the ABS sensor mounting area.
• Install the ABS sensor by hand into the knuckle.
• Use a 10mm socket to install the sensor bolt.
• Tighten the ABS sensor bolt to Torque to 7-10 Nm (62-89 in-lbs).

Step 16: Reinstall the Rotor and Brake Caliper

• Slide the brake rotor onto the hub by hand.
• Use a 17mm socket to install the caliper bracket bolts.
• Tighten the caliper bracket bolts to Torque to 78-86 Nm (58-63 ft-lbs).
• Install the caliper over the rotor.
• Use a 14mm socket to install the caliper slide pin bolts.
• Tighten the caliper slide pin bolts to Torque to 22-32 Nm (16-24 ft-lbs).

Step 17: Install the New Axle Nut and Wheel

• Thread the new axle nut on by hand to avoid cross-threading.
• Use a 32mm axle nut socket to snug the axle nut.
• Install the wheel by hand.
• Use a 21mm socket to snug the wheel nuts in a star pattern.
• Use the floor jack to raise the vehicle slightly, remove the jack stand, and lower the tire to the ground.
• Use a 1/2-inch drive torque wrench and 21mm socket to tighten the wheel nuts to Torque to 88-108 Nm (65-80 ft-lbs).
• Use a 1/2-inch drive torque wrench and 32mm axle nut socket to tighten the axle nut to Torque to 200-260 Nm (148-192 ft-lbs).

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✅ After Repair

• ✅ Pump the brake pedal 3-5 times before moving your Tucson.
• ✅ Start the vehicle and confirm the ABS warning light turns off after a short drive.
• ✅ Test drive slowly at first. Listen for grinding, humming, clicking, or vibration.
• ✅ Have the front alignment checked because the strut-to-knuckle bolts were removed.
• ✅ Recheck the wheel nut torque after 25-50 miles.

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💰 DIY vs Shop Cost

Shop Cost: $350-$650 per front bearing side, including parts and labor

DIY Cost: $60-$160 per side for parts only, plus tool rental or press service if needed

You Save: $200-$450 per side by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 2-3 hours.

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