Serpentine Drive Belt for Alternator and Cooling

This OE-spec engine accessory belt keeps your vehicle reliable every day. It transfers crankshaft power to the alternator, water pump/fans, and often A/C and power steering. Without it, the battery won’t charge and the engine can overheat. Built from heat‑resistant EPDM, it holds grip under high RPM and stop‑go traffic—exact fit, correct rib count, and factory length for quiet, stable operation.

Why you need it ✅

It maintains battery charge, circulates coolant, and supports comfort systems. A strong belt protects your engine and electronics while improving efficiency.

How it works ⚙️

Ribbed rubber runs on grooved pulleys. A tensioner sets the right load so friction moves each accessory smoothly, reducing slip and noise.

When it’s worn or broken

Squeal at start-up, dim lights, battery lamp on, rising temperature, stiff steering, weak A/C. If it snaps: immediate loss of charging and cooling—stop engine to avoid costly damage.

Tech tips

Inspect every service; replace around 60–90k km or 4–6 years. Check for cracks, glazing, or frayed edges. Clean pulleys and assess tensioner/idlers during install.

Compatibility

• QX70
• FX