Genuine Bentley Mulsanne Air Filter Element Pair 3Y0129620

Ensure your engine breathes clean, unrestricted air with this Genuine Bentley Mulsanne Air Filter Element. Part number 3Y0129620 is the official factory replacement designed specifically for the high-output requirements of the Bentley 6.75-liter V8 engine.

Technical Specifications & Fitment:

• Part Number: 3Y0129620

• Quantity: Sold as a pair (Left and Right banks)

• Compatibility: All Bentley Mulsanne models, including Speed and Mulliner Driving Specification (2011–2020).

• Construction: High-capacity pleated media with precision-molded seals for a leak-proof fit within the airbox.

Why Use Genuine 3Y0129620 Filters? The Mulsanne's twin-turbocharged engine is highly sensitive to intake pressure. Aftermarket filters often use denser, lower-quality paper that can restrict airflow, leading to reduced turbo efficiency and "rich-running" fault codes. These Genuine OEM filters are calibrated to the exact micron rating required by Bentley to protect the turbocharger compressor wheels while ensuring the massive torque output of the 6.75L engine is never compromised by intake restriction.

Technical Integration Tip

When replacing the Genuine 3Y0129620 Air Filters, it is essential to vacuum out the bottom of the air filter housing before installing the new elements. Debris often accumulates in the lower corners of the Mulsanne airbox and can be sucked directly into the turbochargers if not cleared during service. Additionally, ensure the rubber perimeter seal is seated perfectly flat; if the seal is pinched during installation, it can allow "unfiltered" air to bypass the element, which can eventually damage the Mass Air Flow (MAF) sensors. We recommend replacing these filters every 10,000 to 15,000 miles, or sooner if the vehicle is driven in dusty environments, to maintain optimal turbocharger longevity.