How to Replace the Water Pump on a 2018 Hyundai Kona (Mechanical vs Electric)
Step-by-step troubleshooting to identify the correct pump, plus tools, parts list, safety tips, and coolant refill notes for 2018, 2019
How to Replace the Water Pump on a 2018 Hyundai Kona (Mechanical vs Electric)
Step-by-step troubleshooting to identify the correct pump, plus tools, parts list, safety tips, and coolant refill notes for 2018, 2019
🔧 Kona - Water Pump Replacement
On your Kona, “water pump” can mean the main engine-driven mechanical water pump or a separate electric auxiliary coolant pump (used for turbo/thermal management on some setups). The parts, access, and torque specs are different, so I need one quick detail before I give you the exact, trim-correct step-by-step.
Difficulty Level: Intermediate | Estimated Time: 2.5-5.0 hours
Quick question (pick one): Are you replacing the main mechanical water pump on the front of the engine, or the electric auxiliary coolant pump mounted in the coolant hose circuit?
⚠️ Safety & Precautions
- ⚠️ Never open the coolant cap hot; wait until fully cold.
- ⚠️ Support the vehicle securely if you’ll be working under it; never rely on a jack alone.
- ⚠️ Coolant is toxic; keep away from kids/pets and clean spills immediately.
- ⚠️ If you’re working near the radiator fan, disconnect the battery negative terminal to prevent unexpected fan operation.
🔧 Required Tools
You'll need the following tools for this repair:
- Metric socket set 8mm–19mm
- Metric wrench set 8mm–19mm
- 3/8" drive ratchet
- 3/8" drive torque wrench (10–100 Nm)
- 1/2" drive breaker bar
- 1/2" drive torque wrench (40–200 Nm)
- Serpentine belt tool (specialty)
- Hose clamp pliers
- Trim clip remover
- Drain pan (at least 10 liters)
- Funnel
- Floor jack (rated 3-ton minimum)
- Jack stands (rated 3-ton minimum)
- Wheel chocks
- Nitrile gloves
- Safety glasses
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- Water pump - Qty: 1
- Water pump gasket or O-ring - Qty: 1
- Engine coolant (Hyundai-compatible long-life) - Qty: 2–3 gallons (mix as required)
- Serpentine drive belt - Qty: 1
- Hose clamps - Qty: 2 (as needed)
📋 Before You Begin
- Park on level ground, set the parking brake, and let the engine cool completely.
- Use wheel chocks and raise/support the front safely with a floor jack and jack stands.
- Place a drain pan under the radiator area before opening any drains/hoses.
- If you’ll be working near the cooling fan/shroud area, disconnect the battery using a 10mm socket (negative terminal first).
🔨 Step-by-Step Instructions
Follow these steps in order:
Step 1: Confirm which “water pump” you’re replacing
- Look for coolant leakage location: front of engine behind the belt area usually points to the mechanical water pump.
- An electric auxiliary pump is a small electric unit in-line with coolant hoses (you’ll see an electrical connector).
- Reply with: “mechanical” or “electric”, and (if possible) upload a photo of the pump area.
Step 2: Pause here so I can give you the exact Kona procedure
- I’ll provide the correct removal order, bleeding procedure, and the OEM torque specs after you confirm pump type.
✅ After Repair
- Refill with the correct coolant mix and bleed air from the system (procedure depends on pump type and hose routing).
- Warm the engine and verify heat output is steady and the temperature gauge stays normal.
- Check for leaks around the pump, hoses, and clamps after the first drive and again the next morning.
💰 DIY vs Shop Cost
Shop Cost: $650-$1,200 (parts + labor)
DIY Cost: $120-$350 (parts only)
You Save: $530-$850 by doing it yourself!
Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 2.5-5.0 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.
















