Ford 7.3L Power Stroke EBPV Hydraulic Actuator | Garrett 452683-0003 | 1999-2003

Genuine Garrett exhaust back pressure valve actuator, part number 452683-0003, for 1999–2003 Ford 7.3L Power Stroke engines with the GTP38 turbocharger. Ford references it as F81Z-6C673-BA. The actuator is the hydraulic piston that positions the exhaust back pressure butterfly valve at the turbine outlet. It is not the EBPV regulator solenoid, which is a separate electrical component.

Key Features

• Genuine Garrett component for the GTP38 turbocharger
• Hydraulic piston actuator for the exhaust back pressure valve
• Mounts to the turbocharger pedestal
• Replaces Ford F81Z-6C673-BA

Specifications

• Part number: 452683-0003
• Ford OE reference: F81Z-6C673-BA
• Component type: Exhaust back pressure valve actuator, hydraulic
• Condition: New
• Turbocharger: Garrett GTP38
• Engine: Ford 7.3L Power Stroke
• Model years: 1999–2003
• Weight: approximately 0.5 lb
• Sold as: each

Compatibility & Fitment

• Engine: Ford 7.3L Power Stroke, 1999–2003
• Turbocharger: Garrett GTP38 with exhaust back pressure valve provision
• Vehicles: Ford F-250, F-350, F-450 and F-550 Super Duty, Excursion and E-Series

Fitment gate — this is the hydraulic actuator, the oil-driven piston that moves the exhaust back pressure valve. It is not the EBPV regulator solenoid, which controls oil flow to the actuator, and it is not the EBP sensor at the high-pressure oil pump reservoir. Confirm which component has failed before ordering.

Second fitment gate — 1994.5 through early 1999 trucks use a different turbocharger pedestal and turbine outlet arrangement. Confirm your model year and that your pedestal has the back pressure valve actuator provision.

How the system works — the exhaust back pressure valve is a butterfly valve at the turbine outlet that restricts exhaust flow during warm-up to bring the engine to operating temperature faster. The EBPV regulator solenoid meters engine oil to this actuator, and the actuator's piston positions the valve through a linkage. The EBP sensor tells the ECM where the valve should be.

Repair alternative — Garrett offers an exhaust back pressure valve rebuild kit, part number 729519-0003. If your actuator is leaking rather than seized, the rebuild kit may resolve it at lower cost.

Conclusion

This is the genuine Garrett hydraulic actuator for the exhaust back pressure valve on 1999–2003 Ford 7.3L Power Stroke engines, replacing Ford F81Z-6C673-BA. Confirm the actuator has failed rather than the regulator solenoid or the EBP sensor before ordering, and consider the rebuild kit if the fault is an oil leak.