Ferrea E11083 Titanium Valve Spring Retainer Nissan TB48 Patrol

The Ferrea E11083 is a precision-engineered titanium valve spring retainer designed specifically for the Nissan TB48 and TB48DE 4.8L DOHC engines found in Patrol applications. This Pro Retainer is CNC-machined from aerospace quality titanium, fully heat-treated and finished to exact tolerances, offering a 40% weight reduction over conventional steel retainers.

Key Features:

• Precision CNC-machined from aerospace-grade titanium alloy
• 40% lighter than conventional steel retainers for reduced valvetrain mass
• Fully heat-treated for maximum strength and durability
• Finished to exact tolerances for optimal performance
• Application-specific design for Nissan TB48/TB48DE Patrol engines
• Ideal for high-RPM and performance applications

Reducing valvetrain weight is critical for high-performance and racing applications, allowing your engine to rev higher while minimizing valve float and improving reliability. Ferrea's titanium retainers are CNC machined to perfection and offer superior strength and stability. This retainer is an essential component when upgrading your TB48 Patrol's valvetrain with performance valve springs and requires use with appropriate valve locks (keepers).