315-9721: Variable Geometry Turbocharger

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315-9721: Variable Geometry Turbocharger

315-9721: Variable Geometry Turbocharger

Cat® Variable Geometry Turbocharger adjusts exhaust flow through movable vanes to regulate boost pressure and support stable engine operation

Brand: Cat

315-9721

194-5390

353-3477

View All Parts

315-9721: Variable Geometry Turbocharger

194-5390: Turbocharger Manifold Gasket

353-3477: Turbo Oil Return Gasket

353-3478: Turbocharger Exhaust Manifold Gasket

225-8536: Exhaust Manifold Gasket

114-2579: Cylinder Head Inlet Manifold Gasket

Diagram

Description

Specifications

Compatible Models

Description for part number 315-9721

The Variable Geometry Turbocharger controls exhaust gas flow by altering vane positions within the turbine housing. It adjusts boost levels according to engine speed and load, ensuring balanced power delivery across different operating conditions. The system helps minimize turbo lag by allowing quicker response during acceleration. It also maintains consistent combustion by matching airflow with fuel delivery in real time. Supporting accurate air management contributes to smoother running and reliable operation of the engine.

Attributes:
• Provides flexible vane adjustment for optimal airflow regulation.
• Maintains steady boost pressure across varying operating ranges.
• Ensures quick adaptation during rapid acceleration or load changes.
• Reduces emissions by optimizing the combustion process.

Applications:
The Variable Geometry Turbocharger is located in the exhaust line, where its adjustable vanes regulate gas flow to optimize turbine speed, deliver controlled boost pressure for improved performance and fuel efficiency in engine operation.

Warning:This product can expose you to chemicals including Lead and lead compounds, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Specifications for part number 315-9721

Units of Measure

Metric

Compatible Models for part number 315-9721

ASPHALT PAVER

AP-300D

INDUSTRIAL ENGINE

C4.4

BACKHOE LOADER

426 416 416E 428F 428 416F 432E 432F 442E 434E 422E 428E 416F2 426 F2 428F2

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Weight (lb)

Overall Height (in)

Overall Width (in)

Description

315-9721: Variable Geometry Turbocharger

14.42

6.0

8.6

Cat® Variable Geometry Turbocharger adjusts exhaust flow through movable vanes to regulate boost pressure and support stable engine operation

20R-4005: Turbocharger

Remanufactured Turbocharger

Key

Factory Fit

This part is designed to fit your Cat equipment based on the manufacturer’s specifications.

Any changes to the manufacturer’s configuration might result in the product not fitting your Cat equipment. Please consult your Cat Dealer before purchasing to ensure that this part is appropriate for your Cat equipment in its current condition and assumed configuration. This indicator cannot guarantee compatibility for all parts.

Remanufactured

Non-Returnable

Kit

Replaced

Remanufactured

Non-Returnable

Kit

Replaced