Michelin 275/40 R18 99Y RunFlat Primacy 3 ZP * MOE 2024

The Michelin Primacy 3 ZP 275/40 R18 99Y * MOE is a summer run-flat tyre developed for road-going passenger cars requiring a manufacturer-approved Mercedes-Benz MOExtended specification. The 275 mm section width, 40-series profile and 18-inch rim provide a broad road contact area while retaining enough sidewall for everyday road use. Its 99 load index permits a maximum load of 775 kg per tyre, and the Y speed rating corresponds to up to 300 km/h.

About Michelin Primacy 3 ZP * MOE 275/40 R18 99Y

This exact Michelin configuration is identified as 275/40 R18 99Y TL Primacy 3 ZP * MOE Green X. The ZP designation identifies Michelin's Zero Pressure run-flat construction, while MOE denotes Mercedes-Benz Original Extended specification and the star marking identifies an approved manufacturer-specific fitment. The European product information confirms the 99Y size, C fuel-efficiency class, A wet-grip class and 71 dB external rolling noise. For Dwbtyres customers looking to buy car tyres in UAE, matching the complete sidewall markings is important because other Primacy 3 versions in the same dimension can have different specifications.

Road manners and touring comfort

The Primacy 3 is designed as a road-focused summer touring tyre rather than a track-oriented product. Its 40-series profile is relatively low but not extremely short, allowing a useful balance between steering response and everyday ride quality. The reinforced run-flat construction adds structural support to the sidewalls, which can make the tyre feel firmer than a conventional non-run-flat Primacy 3. On normal paved roads, its design is aimed at stable, predictable behaviour rather than an aggressive performance response.

Dry and wet-road performance

The exact 275/40 R18 99Y * MOE specification carries an A wet-grip classification under the European tyre-label system. Michelin's Primacy 3 is engineered around braking and wet-road control, while the broad contact area of this 275 mm configuration provides a substantial footprint for acceleration, braking and cornering. The 71 dB external rolling-noise figure and B noise class provide a standardised indication of exterior noise, although perceived cabin noise will also depend on the vehicle and road surface.

Tread design and water management

The Primacy 3 uses a road-oriented asymmetric tread pattern with distinct tread zones designed to maintain contact during braking and cornering. Longitudinal drainage channels and lateral groove elements provide pathways for water to leave the contact area, while the larger shoulder areas support cornering stability. The pattern is intended for dry and wet summer-road conditions and is not designed as a winter or off-road tread. The exact production specification should always be matched to the vehicle's approved tyre marking.

ZP run-flat construction and MOE marking

The defining feature of this version is its ZP run-flat construction. Michelin's ZP system uses reinforced sidewalls to support the vehicle after a loss of inflation pressure, subject to the manufacturer's operating conditions. Established product documentation for this exact size identifies the tyre as run-flat and MOE. The MOE designation is particularly relevant for Mercedes-Benz applications, while the star marking is a manufacturer-specific approval marking. These markings should not be treated as interchangeable with a standard Primacy 3.

Who is this Michelin configuration suited to?

The Michelin Primacy 3 ZP * MOE 275/40 R18 99Y is suited to drivers who want a summer touring tyre with run-flat capability, high-speed capacity and a manufacturer-specific fitment. It is a sensible choice where the vehicle requires the MOE and star markings. Drivers prioritising winter traction, off-road capability or an especially soft non-run-flat ride should consider a different tyre category. The supplied manufacturing year is 2024, but the exact manufacturing country for that production batch cannot be reliably confirmed from the available documentation.

For customers comparing Michelin Tyres, this specification should be kept separate from other Primacy 3 versions in 275/40 R18. Dwbtyres buyers should match the complete 275/40 R18 99Y ZP * MOE marking and confirm the vehicle manufacturer's approved fitment before installation.