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Wastegates

On a turbocharged engine, building boost fast is the name of the game. However, making too much boost can lead to disaster. That’s where the wastegate comes in to save...

On a turbocharged engine, building boost fast is the name of the game. However, making too much boost can lead to disaster. That’s where the wastegate comes in to save the day!

Inside of a wastegate is a spring pressing against a diaphragm. Once the pressure of the air leaving the compressor exceeds the pressure of the spring, it moves the diaphragm, which is linked to a bypass valve before the exhaust turbine. The bypass opens, and some of the exhaust gas pressure is released into the exhaust (or, on some race vehicles, the atmosphere), mitigating boost.

An internal wastegate actuates a bypass valve located inside the...

On a turbocharged engine, building boost fast is the name of the game. However, making too much boost can lead to disaster. That’s where the wastegate comes in to save the day!

Inside of a wastegate is a spring pressing against a diaphragm. Once the pressure of the air leaving the compressor exceeds the pressure of the spring, it moves the diaphragm, which is linked to a bypass valve before the exhaust turbine. The bypass opens, and some of the exhaust gas pressure is released into the exhaust (or, on some race vehicles, the atmosphere), mitigating boost.

An internal wastegate actuates a bypass valve located inside the turbocharger itself, while an external wastegate operates a bypass valve separate from the turbocharger. An internal wastegate system is more compact and requires less plumbing (most OE turbochargers use an internal wastegate), but is limited by the housing of the turbocharger. Most high performance and racing vehicles use an external wastegate system for its greater versatility.

Top Brands

When it comes to protecting your turbocharger and engine, you want a wastegate from a trusted manufacturer. That why Summit Racing Equipment only partners with proven brands like STS Turbo, Precision Turbo & Engine, Turbosmart, and VS Racing.

Individual Parts

Results 1 - 25 of 52

Wastegate, Mechanical, 44mm Diaphragm type, Stainless Base, Black Anodized Aluminum Top Cap, Each

Part Number: SUM-260072

4.95 out of 5 stars ( 19 )

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Wastegate, Mechanical, External, 50mm, Diaphragm, Black Aluminum Cap, Natural Stainless Steel Body, for 2 in. Pipes, with Clamps and Flanges, Each

Part Number: VSG-VSR50WGD

5.0 out of 5 stars ( 1 )

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Wastegate, GEN2, PW46, Mechanical, 46mm Diameter, Cast Stainless Steel Body, Aluminum Top Cap, Each

Part Number: PTU-PBO085-2001

5.0 out of 5 stars ( 1 )

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Wastegate, Mechanical, External, Cast Stainless Steel Base, Natural, Black Anodized Aluminum Top Cap, 60mm Relief Diameter, Each

Part Number: VSG-VSR60WGD

5.0 out of 5 stars ( 2 )

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PerformanceWastegate, 60mm Piston style, Cast Stainless Base, Black Anodized Aluminum Top Cap, 6.2 and 4.6 psi springs installed.

Part Number: SUM-260073

3.57 out of 5 stars ( 7 )

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Wastegate, PTE, PW66, Mechanical, 66mm Diameter, Cast Stainless Steel Body, Aluminum Top Cap, Each

Part Number: PTU-PBO085-3000

5.0 out of 5 stars ( 1 )

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Wastegate, GEN2, PW39, Mechanical, 39mm Diameter, Cast Stainless Steel Body, Black Anodized Aluminum Top Cap, Each

Part Number: PTU-PBO085-1001

Not Yet Reviewed

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Wastegate, Pro Series, Mechanical, Universal, External, 45mm, Cast Stainless Steel Base, Black Anodized Billet Aluminum Top Cap, Each

Part Number: SUM-270100R

5.0 out of 5 stars ( 1 )

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Wastegate, Ultra-Gate 38 Wastegate, Mechanical, External, 38mm Relief Diameter, 7 psi Spring, Stainless Steel Base, Black Aluminum Top Cap, Each

Part Number: TBS-TS-0551-1002

5.0 out of 5 stars ( 3 )

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Wastegate, StraightGate50 Pneumatic Wastegate, Mechanical, External, 50mm Relief Diameter, 6 psi Springs, Black Aluminum Top Cap, Each

Part Number: TBS-TS-0565-1762

Not Yet Reviewed

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Wastegate, Comp-Gate 40, Mechanical, External, Black Aluminum Top Cap, 40mm Relief Diameter, Each

Part Number: TBS-TS-0505-1010

5.0 out of 5 stars ( 1 )

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Wastegate, Ultra-Gate 38, Mechanical, External, 38mm Relief Diameter, 14 psi Spring, Stainless Steel Base, Black Aluminum Top Cap, Each

Part Number: TBS-TS-0551-1012

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 22, 2026 if ordered today

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Estimated Ship Date: Apr 22, 2026 if ordered today

Wastegate, Mechanical, 40mm Diaphragm type, Stainless Base, Blue Anodized Aluminum Top Cap, Each

Part Number: GAP-908827-0002

Not Yet Reviewed

Estimated Ship Date: Apr 9, 2026 if ordered today

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Estimated Ship Date: Apr 9, 2026 if ordered today

Wastegate, Ultra-Gate 38, Mechanical, External, 38mm Relief Diameter, 14 psi Spring, Stainless Steel Base, Blue Aluminum Top Cap, Each

Part Number: TBS-TS-0551-1011

Not Yet Reviewed

Estimated Ship Date: Apr 22, 2026 if ordered today

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Estimated Ship Date: Apr 22, 2026 if ordered today

Wastegate, Mechanical, 45mm Diaphragm type, Stainless Base, Black Anodized Aluminum Top Cap, Each

Part Number: GAP-908828-0003

Not Yet Reviewed

Estimated Ship Date: Apr 9, 2026 if ordered today

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Estimated Ship Date: Apr 9, 2026 if ordered today

Wastegate, Mechanical, 40mm Diaphragm type, Stainless Base, Black Anodized Aluminum Top Cap, Each

Part Number: GAP-908827-0003

Not Yet Reviewed

Estimated Ship Date: Apr 10, 2026 if ordered today

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Estimated Ship Date: Apr 10, 2026 if ordered today

Wastegate, Mechanical, 45mm Diaphragm type, Stainless Base, Blue Anodized Aluminum Top Cap, Each

Part Number: GAP-908828-0002

Not Yet Reviewed

Estimated Ship Date: Apr 9, 2026 if ordered today

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Estimated Ship Date: Apr 9, 2026 if ordered today

Wastegate, Mechanical, Piston Actuated, Design, External, 50mm, 14 psi, Cast Stainless Steel Base, Black Anodized Aluminum Top Cap, Each

Part Number: GRN-S0003

Not Yet Reviewed

Estimated Ship Date: Apr 9, 2026 if ordered today

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Wastegate, Mechanical, 40mm Diaphragm type, Stainless Base, Red Anodized Aluminum Top Cap, Each

Part Number: GAP-908827-0001

Not Yet Reviewed

Estimated Ship Date: Apr 9, 2026 if ordered today

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Estimated Ship Date: Apr 9, 2026 if ordered today

Wastegate, Mechanical, 40mm Diaphragm type, Stainless Base, Silver Anodized Aluminum Top Cap, Each

Part Number: GAP-908827-0004

Not Yet Reviewed

Estimated Ship Date: Apr 9, 2026 if ordered today

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Estimated Ship Date: Apr 9, 2026 if ordered today

Wastegate, Mechanical, 45mm Diaphragm type, Stainless Base, Silver Anodized Aluminum Top Cap, Each

Part Number: GAP-908828-0004

Not Yet Reviewed

Estimated Ship Date: Apr 9, 2026 if ordered today

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Estimated Ship Date: Apr 9, 2026 if ordered today

Wastegate, Ultra-Gate 38, Mechanical, External, 38mm Relief Diameter, 14 psi Spring, Stainless Steel Base, Red Aluminum Top Cap, Each

Part Number: TBS-TS-0551-1014

Not Yet Reviewed

Estimated Ship Date: Apr 22, 2026 if ordered today

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Estimated Ship Date: Apr 22, 2026 if ordered today

GenV WG45/50 Compress Gas (Solenoid) Complete Sensor Cap Black

Part Number: TBS-TS-0550-3168

Not Yet Reviewed

Estimated Ship Date: Apr 22, 2026 if ordered today

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Estimated Ship Date: Apr 22, 2026 if ordered today

External Wastegates, GenV WG60 Compress Gas (Solenoid) Complete Sensor Cap Black

Part Number: TBS-TS-0550-3171

Not Yet Reviewed

Estimated Ship Date: Apr 22, 2026 if ordered today

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Estimated Ship Date: Apr 22, 2026 if ordered today