What is the purpose of an internal wastegate actuator?

An internal wastegate actuator controls the maximum boost pressure your turbocharger can produce. It opens a valve to bypass exhaust gases around the turbine when a set pressure is reached, preventing over-boosting.

Can I change the boost pressure on this actuator?

Yes, this actuator comes with a 5psi spring. Turbosmart offers optional springs in a wide range, from 3psi up to 26psi, allowing you to adjust the boost level to your needs.

What does the locking collar system do?

The locking collar system is a Turbosmart design that makes adjusting the wastegate actuator's rod length simple and secure. Once you set your desired boost pressure, the collar locks it in place.

1 / 2

Specifications

Brand: Turbosmart
Part #: TS-0645-4052
UPC: 9329677017045

Turbosmart IWG75 K04 Leon 5psi Black Internal Wastegate Actuator

Name: Turbosmart IWG75 K04 Leon 5psi Black Internal Wastegate Actuator
Brand: Turbosmart
SKU: turbosmart-turbosmart-iwg75-k04-leon-5psi-black-internal-wastegate-actuator-t14-404564
Price: 229.49 USD
Availability: BackOrder

$229.49

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Turbosmart IWG75 K04 Leon 5psi Black Internal Wastegate Actuator. Boost control for K04 turbochargers.

Key Features

Fits K04 turbochargers with a 5psi boost setting.
Constructed from high-grade billet aluminum for a strong housing.
Features Turbosmart's unique locking collar system for easy and secure adjustment.
Uses a proprietary silicon Nomex diaphragm to withstand heat and pressure.
Includes stainless steel rods and clevis for durability.
Optional springs are available from 3psi to 26psi for custom boost control.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

Secure CheckoutFast Shipping631-982-0042

About this part

Product Details

This Turbosmart IWG75 internal wastegate actuator uses a 5psi spring to manage boost pressure for K04 turbochargers. It's built with a high-grade billet aluminum body, offering a solid foundation for reliable operation. The actuator features Turbosmart's unique locking collar system, which makes adjustments straightforward and secure, ensuring your boost settings stay put. Inside, a proprietary silicon Nomex diaphragm is used, designed to handle the heat and pressure cycles common in forced induction systems. Stainless steel rods and clevis are included for durability and corrosion resistance.

The billet aluminum construction not only looks good but also provides a strong housing for the internal components. This actuator is a well-built replacement or upgrade for managing boost on compatible K04 turbo applications. While this unit comes with a 5psi spring, Turbosmart offers optional springs ranging from 3psi up to 26psi, allowing you to fine-tune your boost levels further if needed.