Banks Power 99-99.5 Ford 7.3L Big Head Actuator Assembly

Under high-boost conditions, the stock actuator's weak spring allows the wastegate to blow open, limiting midrange torque. Bleed orifices (also known as "boost foolers") just make it worse. Only Banks solves this problem by replacing the boost actuator. BigHead holds the wastegate closed for quicker boost, then controls the opening to maintain peak boost for superior acceleration and mid-range pulling power. Power Now! When turbo exhaust backpressure increases, the stock actuator prematurely blows off the seat, softening boost in the midrange and killing torque. With twice the diaphragm area and spring pressure of the stock wastegate, Banks BigHead Wastegate Actuator keeps the valve seated longer and achieves a higher peak boost, sooner. At peak, BigHead opens the wastegate and holds its position, for precise boost control that gives you crisp acceleration and more mid-range pulling power. For trucks manufactured in 1998. Build date can be found on vehicle information tag driver door jamb. Key Features: Quick, Controlled Boost. Produces massive torque right from idle. Doubles stock's diaphragm area and spring pressure. Keeps the valve seated longer achieving higher peak boost, sooner. Crisp acceleration and more mid-range pulling power. Fits Ford 7.3L (1999-1999.5) manufactured in 1998 BigHead Actuator, BigHead Wastegate Actuator Assembly for 1999 Ford F250/F350 7.3L Power Stroke Carb E.O. not required REPLACEMENT PART ONLY Used in Banks Kit: 47521

• For higher peak boost, sooner
• More Mid Range Muscle

Upgrade your 1999 Ford F-250 or F-350 with the Banks Power Big Head Wastegate Actuator Assembly, designed specifically for 7.3L Power Stroke engines manufactured in 1998. This high-performance replacement part enhances turbo boost control, delivering quicker spool times and increased mid-range torque. The Big Head actuator features twice the diaphragm area and spring pressure of the stock component, enabling the wastegate to remain seated longer and achieve higher peak boost levels sooner, which translates into more immediate power delivery and improved acceleration.
The precise boost regulation provided by this actuator ensures consistent performance, reducing the issues caused by stock actuators under high-boost conditions, such as premature blow-off and boost leaks. This results in more reliable operation and a noticeable gain in mid-range pulling power, making it ideal for towing and performance applications.
Built as a direct replacement, the Banks Big Head Wastegate Actuator Assembly is compatible with the original setup and is used in the Banks Kit 47521. It does not require a CARB exemption but does require acknowledgment of Prop 65, ensuring compliance with safety standards. The durable construction and engineered design make this an essential upgrade for enthusiasts seeking peak performance and enhanced turbo responsiveness in their Ford Super Duty trucks. Perfect for those looking to maximize boost efficiency and power output without modifying existing systems, this assembly offers a straightforward upgrade to improve overall engine performance and driving experience.

Features:

• Quick, controlled boost for immediate power delivery

• Produces massive torque right from idle

• Doubles stock diaphragm area and spring pressure for higher peak boost

• Keeps the wastegate seated longer for earlier boost onset

• Provides crisp acceleration and enhanced mid-range pulling power

Fitment:
Ford F-250 Super Duty Lariat 1999
Ford F-250 Super Duty XL 1999
Ford F-250 Super Duty XLT 1999
Ford F-350 Super Duty Lariat 1999
Ford F-350 Super Duty XL 1999
Ford F-350 Super Duty XLT 1999