222262B421 Hyundai / KIA TAPPET, Price: 9.20$, Weight: 0.03kg

Engine Valve Tappet (Hydraulic Lifter) ⚙️

This part is a small but critical link between the camshaft and the valve train. Its job is to keep the valve clearance correct automatically, so the engine runs quiet, smooth, and efficient. When fitted correctly, it reduces ticking noise, protects the cam lobes, and helps maintain stable idle and good fuel economy.

Why this part is needed ✅

Modern Hyundai/KIA engines rely on a hydraulic tappet to compensate for heat expansion and normal wear. It keeps constant contact in the valve train, preventing hammering and micro-gaps that cause noise and early wear.

How it works

Inside the tappet is a spring-loaded plunger and a one-way oil valve. Engine oil pressure fills the chamber and “locks” the plunger length, so the cam pushes the valve with the right preload. As parts expand or wear, oil flow adjusts the tappet height automatically.

What happens if it’s worn or broken ❌

You may hear tapping/ticking, especially on cold start. A collapsed lifter can cause misfire, rough idle, loss of power, and accelerated camshaft/rocker wear. In severe cases it can damage valves or trigger engine fault codes due to incorrect valve operation.

Compatible models

• Sonata
• Hb20
• Creta
• I30
• Tucson
• Ix20
• Ix35 / Tucson
• I20
• Accent
• Verna
• Accent / Verna
• Elantra
• Elantra / Avante
• Avante
• Avante Hybrid
• Veloster
• Kona
• Kauai
• Venue
• I40
• Accent / Solaris
• Elantra / I30