Turbosmart TS-0620-1142 IWG75 Actuator 14PSI for BorgWarner EFR B1

Vehicle Fitment

• Universal turbo application - Designed for BorgWarner EFR B1 series internal wastegates (single scroll)

Features

• IWG75 internal wastegate actuator optimized for turbo boost control
• Pre-installed 14 PSI spring for a balanced boost threshold
• Billet aluminum housing with black anodized finish for heat resistance
• Nomex-reinforced silicone diaphragm for high temperature durability
• Stainless steel rod and clevis resist corrosion and flex under load
• Turbosmart locking collar design for straightforward spring swaps
• Improves boost response and sensitivity over stock actuators
• Compatible with Turbosmart external boost controllers for fine tuning

Specifications

• Part Number: TS-0620-1142
• Type: Internal Wastegate Actuator (IWG75)
• Base Spring Pressure: 14 PSI (0.95 bar)
• Rod Length: 120 mm (fits BorgWarner EFR B1 single scroll turbo)
• Material: Billet aluminum housing, silicone/Nomex diaphragm
• Color: Black anodized finish
• Fitment: BorgWarner EFR B1 Single Scroll turbo wastegate
• Boost Control: Enhanced over OEM internal actuators

Included Components

• 1x Turbosmart IWG75 Internal Wastegate Actuator (TS-0620-1142)
• Pre-installed 14 PSI internal spring
• Mounting hardware and swivel hose barb fitting

Product Description

The Turbosmart TS-0620-1142 IWG75 Internal Wastegate Actuator is engineered to enhance boost control on BorgWarner EFR B1 (single scroll) turbochargers. This high-quality actuator features a 14 PSI pre-installed spring and a large diaphragm area designed to improve responsiveness and overall control compared to stock units. Its billet aluminum construction and Nomex-reinforced silicone diaphragm help it withstand the demanding heat and pressure inside turbo systems, making it suitable for performance upgrades or tuned applications.

Built to suit BorgWarner EFR B1 single scroll turbo frames with a 120 mm rod, the TS-0620-1142 offers a direct fit solution that delivers tighter boost regulation and quicker spool behavior. The Turbosmart locking collar allows for future spring changes if your performance goals evolve, and pairing with an aftermarket boost controller enables fine-tuned boost strategies. While this is a universal actuator rather than vehicle-specific, it's ideal for enthusiasts running EFR series turbos on a wide range of turbocharged engines.