Pirelli 285/40 R23 107Y P Zero PZ4 MO 2026

About Pirelli P Zero PZ4 285/40 R23 107Y MO

Pirelli officially classifies this P Zero PZ4 as an ultra-high-performance summer tyre for premium cars and SUVs. The 285/40 R23 107Y version carries the Mercedes-Benz MO original-equipment marking, while its European label records C rolling efficiency, A wet grip and 71 dB external rolling noise. Drivers comparing Pirelli Tyres should therefore distinguish this MO version from visually similar PZ4 sizes carrying other manufacturer homologations or additional technologies.

Why the 285/40 R23 Profile Matters

At 285 mm wide, this tyre has the footprint expected from a large premium performance fitment. The 40-series sidewall is an important difference, however. It provides more sidewall depth than a 285/30 or 285/35 configuration, which can offer greater impact compliance while still maintaining the controlled response expected from a P Zero. A 23-inch wheel remains a large and relatively unforgiving setup on damaged asphalt, so this should not be confused with the cushioning of a conventional high-profile touring tyre.

Wet Grip and the PZ4 Tread Layout

The PZ4 uses different inner and outer tread functions. Pirelli describes the inner design as using high silica content to support wet performance, traction and ride comfort, while the outer tread uses an optimised pitch sequence and siping arrangement to manage noise and rolling resistance. Wide longitudinal channels provide the main routes for water evacuation. For customers shopping through Dwbtyres, the official A wet-grip label provides useful evidence for this exact specification, although tyre pressure and remaining tread depth still have a major effect in real driving.

107Y and Mercedes-Benz MO Homologation

Load index 107 corresponds to a maximum rated load of 975 kg per tyre, while the Y speed rating corresponds to a maximum rated speed of 300 km/h under the prescribed conditions. The MO marking means this particular PZ4 is Mercedes-Benz original-equipment homologated. That does not make it suitable for every Mercedes-Benz with 23-inch wheels. Correct vehicle, axle position, tyre dimensions and manufacturer-approved specification still need to match before installation.

Where This P Zero PZ4 Fits Best

This 285/40 R23 PZ4 makes most sense for owners of compatible premium cars and SUVs who want the intended Mercedes-Benz-approved specification, strong wet-road capability and performance-oriented highway handling. Drivers primarily seeking maximum tread life, soft ride quality or off-road traction should consider a different tyre category. For buyers looking to buy car tyres in UAE, the important distinction is the complete 285/40 R23 107Y MO specification rather than P Zero branding alone, particularly because other versions of this size exist with different OE markings and technologies.