Volvo XC90 B8444S 4.4L Engine For Sale.

Volvo XC90 B8444S 4.4L Naturally Aspirated V8 Engine For Sale.

Unique chapter in Volvo engineering, Used engine For Sale

This Volvo XC90 B8444S 4.4L Engine is rare and also a highly desirable powerplant that represents a unique chapter in Volvo engineering. Developed in collaboration with Yamaha, this aluminum DOHC V8 was designed to deliver smooth, refined power with exceptional durability for premium SUV applications. 

Known for its strong naturally aspirated performance and distinctive V8 character, the B8444S remains one of the most sought-after second-hand Volvo engines for enthusiasts and replacement buyers alike.

This 4.4-liter naturally aspirated petrol engine features a V8 configuration with dual overhead camshafts and 32 valves, constructed with an all-aluminum block and cylinder heads to reduce weight while maintaining strength. 

The engine produces approximately 311 horsepower (232 kW) and 440 Nm of torque, offering confident acceleration, excellent towing capability, and smooth power delivery across the rev range. It utilizes a timing chain system rather than a belt, improving long-term reliability, and is paired exclusively with automatic transmissions designed to handle its torque output.

The B8444S engine was primarily fitted to the Volvo XC90 V8 AWD, produced between 2005 and 2010, making it unique within the Volvo lineup. 

While its factory application was limited, the engine is highly regarded for premium SUV rebuilds, specialty projects, and moreover a direct replacements for original XC90 V8 models. Its transverse V8 layout is compact for its class, allowing it to fit within Volvo’s AWD platform without compromising cabin or drivetrain packaging.

Specifications, Common weaknesses and Maintenance.

Despite its solid reputation, the B8444S does have some common weaknesses that buyers should be aware of. These include potential balance shaft bearing wear, oil leaks from seals and gaskets, and cooling system strain if maintenance is neglected. Some engines may experience alternator or accessory drive issues, as well as engine mount wear due to the V8’s torque and operating mass.

Maintenance notes are essential for preserving long-term performance. Regular high-quality synthetic oil changes, cooling system inspections, and attention to timing chain noise or vibration are strongly recommended. 

Preventative servicing of auxiliary components and proper AWD system maintenance further enhance reliability. When well maintained, the Volvo B8444S 4.4L V8 engine delivers smooth power, premium driving comfort, and long service life, making it an exceptional choice for restoring or maintaining a Volvo XC90 V8.