Assumption: This covers the engine-driven water pump on your NX200t’s 2.0L turbo. Some fastener sizes/torques can vary by production; verify if anything doesn’t match exactly.

🔧 NX - Water Pump Replacement

The water pump keeps coolant moving through the engine and radiator. If it leaks or the bearing gets noisy, replacing it prevents overheating and bigger engine damage.

Difficulty Level: Intermediate | Estimated Time: 3-5 hours

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⚠️ Safety & Precautions

• ⚠️ Only open the cooling system when the engine is fully cold.
• ⚠️ Use jack stands; never rely on a floor jack alone.
• ⚠️ Keep hands clear of the belt/tensioner; it can snap back.
• ⚠️ Coolant is toxic—capture it and dispose of it properly.
• ⚠️ Wipe spilled coolant off belts/pulleys immediately to prevent slipping.

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🔧 Required Tools

You'll need the following tools for this repair:

• Floor jack (rated 3-ton minimum)
• Jack stands (rated 3-ton minimum)
• Wheel chocks
• Safety glasses
• Nitrile gloves
• Drain pan (at least 10-quart)
• Funnel
• Trim clip remover
• Ratchet (3/8")
• Ratchet (1/4")
• Socket set (8mm-19mm)
• 10mm socket
• 12mm socket
• 14mm socket
• Torque wrench (5-80 Nm range)
• Serpentine belt tool (specialty)
• Hose clamp pliers
• Plastic scraper
• Brake cleaner spray
• Shop towels
• Flashlight

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Engine water pump assembly - Qty: 1
• Water pump gasket / O-ring (as equipped) - Qty: 1
• Toyota/Lexus Super Long Life Coolant (pink) premix - Qty: 2-3 gallons
• Serpentine drive belt - Qty: 1

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📋 Before You Begin

• 🅿️ Park on level ground, set the parking brake, and chock the rear wheels.
• 🧊 Let the engine cool completely.
• 🧰 Remove the engine undercovers so you can access the radiator drain and front of the engine.
• 📝 Take a photo of the belt routing before removal.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Raise the vehicle and remove the undercovers

• Use wheel chocks at the rear wheels.
• Lift the front with a floor jack (rated 3-ton minimum) and support with jack stands (rated 3-ton minimum).
• Remove undercovers using a trim clip remover and 10mm socket.

Step 2: Drain the coolant

• Place a drain pan (at least 10-quart) under the radiator drain area.
• Slowly loosen the radiator cap to release any leftover pressure.
• Open the radiator drain and drain coolant fully into the pan.

Step 3: Remove the serpentine belt

• Use a serpentine belt tool (specialty) to rotate the belt tensioner (the spring-loaded arm that keeps the belt tight).
• Slip the belt off a smooth pulley first, then remove it completely.
• Tip: Double-check your routing photo later.

Step 4: Move anything blocking access to the pump

• Remove any small brackets or ducting in the way using a 10mm socket and 12mm socket.
• If a coolant hose is attached to the pump area, use hose clamp pliers to slide the clamp back, then twist/pull the hose off.
• Catch spills with shop towels and the drain pan (at least 10-quart).

Step 5: Remove the water pump

• Remove pump bolts using a 10mm socket (and 12mm socket if your pump uses mixed bolt sizes).
• Pull the pump straight off. If stuck, wiggle it gently by hand—avoid prying on aluminum sealing surfaces.
• Clean the engine mating surface using a plastic scraper.
• Spray brake cleaner spray onto shop towels (not directly into the engine) and wipe the surface clean and dry.

Step 6: Install the new water pump

• Install the new water pump gasket / O-ring on the new pump. Make sure it sits flat and isn’t pinched.
• Position the pump and hand-start all bolts.
• Tighten bolts evenly in a crisscross pattern with a torque wrench (5-80 Nm range): Torque to 10 Nm (89 in-lbs).

Step 7: Reinstall hoses, brackets, and belt

• Reconnect hoses and reposition clamps using hose clamp pliers.
• Reinstall brackets/ducting using a 10mm socket and 12mm socket.
• Route the belt using your photo, then rotate the tensioner with the serpentine belt tool (specialty) and slip the belt on.
• Confirm the belt ribs sit fully in the pulley grooves.

Step 8: Reinstall undercovers and lower the vehicle

• Reinstall undercovers using a 10mm socket and trim clip remover.
• Lift slightly with the floor jack (rated 3-ton minimum), remove jack stands (rated 3-ton minimum), then lower the vehicle.

Step 9: Refill and bleed the cooling system

• Close the radiator drain.
• Refill using a funnel and Toyota/Lexus Super Long Life Coolant (pink) premix.
• Start the engine and set the heater to HOT.
• Let the engine warm up, watching the coolant level; top off as air purges.
• Shut off, let it cool completely, then recheck the reservoir level and top off.

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✅ After Repair

• 🔎 With the engine running, check for leaks around the pump and hoses using a flashlight.
• 🌡️ Road test 10-15 minutes and confirm normal temperature.
• 🧊 Next morning (cold engine), recheck coolant level and add if needed.
• 👂 If you hear belt squeal, recheck belt alignment on every pulley.

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💰 DIY vs Shop Cost

Shop Cost: $650-$1,150 (parts + labor)

DIY Cost: $180-$420 (parts only)

You Save: $470-$730 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 3-5 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.