🔧 Water Pump - Replacement

Assumption: 5.7L V8 gas engine.

Your Ram uses a belt-driven water pump, so the repair means draining coolant, removing the belt, fan/shroud access parts, and swapping the pump with a new gasket and fresh coolant. Take your time with the gasket surface so you do not create a leak.

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

---

⚠️ Safety & Precautions

• Let the engine go fully cold before opening the cooling system. Hot coolant can cause severe burns.
• Disconnect the negative battery cable before working near the fan and belt.
• Keep hands, clothing, and tools clear of the fan blades and pulleys.
• Use jack stands if you raise the truck. Never work under a vehicle supported by a jack alone.
• Have a drain pan ready. Coolant is toxic to people, pets, and wildlife.

---

🔧 Required Tools

You'll need the following tools for this repair:

• 8mm socket
• 10mm socket
• 13mm socket
• 15mm socket
• Ratchet
• 1/2-inch breaker bar
• Serpentine belt tool (specialty)
• Fan clutch wrench set (specialty)
• Drain pan
• Funnel
• Plastic scraper
• Torque wrench
• Shop towels
• Safety glasses
• Nitrile gloves

---

🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Water pump - Qty: 1
• Water pump gasket - Qty: 1
• Engine coolant - Qty: 2 gallons
• Thermostat gasket - Qty: 1
• Serpentine belt - Qty: 1
• Radiator cap - Qty: 1

---

📋 Before You Begin

• Park on level ground and set the parking brake.
• Let the engine cool completely.
• Disconnect the negative battery cable.
• Place a drain pan under the radiator drain area.
• If your truck has a fan shroud or intake ducting blocking access, remove those first.

---

🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Drain the cooling system

• Use a drain pan under the radiator drain area.
• Open the radiator drain or remove the lower hose carefully to drain coolant.
• Save and separate old coolant for proper disposal.

Step 2: Remove the intake and fan shroud access parts

• Use the 8mm socket and 10mm socket to remove the air intake ducting and any shrouds blocking the front of the engine.
• If equipped, remove the fan shroud fasteners with the 10mm socket.
• Keep fasteners grouped by location.

Step 3: Remove the mechanical fan

• Use the fan clutch wrench set (specialty) to loosen and remove the fan clutch assembly.
• Lift the fan and shroud out carefully.
• Set it aside where the blades will not get damaged.

Step 4: Remove the serpentine belt

• Use the serpentine belt tool (specialty) or 1/2-inch breaker bar to rotate the belt tensioner.
• Slip the belt off a pulley and remove it from the engine.
• Inspect the belt for cracks or glazing. Replace it if worn.

Step 5: Remove the water pump

• Use the 13mm socket and 15mm socket to remove the water pump bolts.
• Break the pump loose and pull it away from the timing cover.
• Catch any remaining coolant in the drain pan.

Step 6: Clean the gasket surface

• Use a plastic scraper and shop towels to clean the mating surface.
• Do not gouge the aluminum surface.
• A clean surface prevents leaks.

Step 7: Install the new water pump

• Install the new gasket on the pump.
• Set the new water pump in place by hand first.
• Start all bolts by hand, then tighten evenly with the 13mm socket and torque wrench.
• Torque to 11 Nm (97 ft-lbs) for the water pump bolts.

Step 8: Reinstall the belt, fan, and shroud

• Route the serpentine belt exactly as it was before using the belt routing diagram under the hood.
• Use the serpentine belt tool (specialty) to load the tensioner and reinstall the belt.
• Reinstall the fan clutch with the fan clutch wrench set (specialty).
• Reinstall the fan shroud and intake ducting with the 8mm socket and 10mm socket.

Step 9: Refill the cooling system

• Use a funnel to refill with the correct coolant mix.
• Fill the radiator and reservoir to the proper level.
• Reconnect the negative battery cable.

---

✅ After Repair

• Start the engine and let it idle with the heater on high.
• Watch for leaks at the water pump, hoses, and drain area.
• Top off coolant as the air bleeds out of the system.
• After a full heat cycle and cool-down, recheck the coolant level.
• Listen for belt noise or fan interference.

---

💰 DIY vs Shop Cost

Shop Cost: $650-$1,100 (parts + labor)

DIY Cost: $180-$360 (parts only)

You Save: $470-$740 by doing it yourself!

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

---

🎯 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.