Cummins Turbocharger Actuator 5452688 3788937 for B6.7 ISB6.7 QSB6.7

The Cummins Turbocharger Actuator 5452688 (3788937) is a precision-engineered component designed to control the variable geometry turbocharger (VGT) system on Cummins diesel engines. Specifically developed for Cummins B6.7, ISB6.7, and QSB6.7 platforms, this actuator ensures accurate vane positioning to deliver optimal boost pressure under all operating conditions.

Built to OEM standards, the 5452688 turbo actuator responds rapidly to engine load changes, improving throttle response, combustion efficiency, and emissions control. Its rugged construction allows it to withstand extreme exhaust temperatures, vibration, and continuous heavy-duty operation common in commercial and industrial diesel engines.

A malfunctioning turbo actuator can lead to turbo lag, engine derate, excessive exhaust smoke, reduced power, or diagnostic fault codes. Replacing it with the Cummins 5452688 / 3788937 turbocharger actuator restores proper turbo function, maximizes engine output, and supports long-term engine reliability. This actuator is ideal for engine repairs, scheduled maintenance, and fleet service applications.

✔ PRODUCT FEATURES & COMPONENTS

• OEM-quality turbocharger actuator

• Cummins part numbers: 5452688, 3788937

• Designed for variable geometry turbochargers (VGT)

• Precise control of turbo vane position

• High-temperature and vibration-resistant housing

• Durable electronics for continuous duty cycles

• Direct-fit replacement with no modification required

• Restores factory turbo boost performance

✅ ENGINE COMPATIBILITY

• Cummins B6.7

• Cummins ISB6.7

• Cummins QSB6.7

✅ VEHICLE & EQUIPMENT APPLICATIONS

• Commercial trucks and buses

• Construction and industrial equipment

• Agricultural machinery

• Generator sets and power units

• Fleet vehicles using Cummins turbocharged engines

✅ KEY FEATURES & BENEFITS

• Accurate turbo boost regulation

• Improved engine power and throttle response

• Optimized fuel economy and combustion efficiency

• Reduced emissions and turbo-related fault codes

• OEM-grade fit, reliability, and service life

• Designed for heavy-duty diesel environments