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Product Details
The Turbosmart GenV UltraGate38 Replacement Valve Seat (TS-0551-3001) is a genuine Turbosmart service component designed specifically for the GenV UltraGate38 38mm external wastegate. Manufactured from high-grade stainless steel, this replacement valve seat provides the precision sealing surface required for reliable exhaust gas control and consistent turbocharger boost regulation.
The valve seat is an essential component of an external wastegate assembly. When the wastegate is closed, the valve contacts the seat to restrict exhaust gas flow through the wastegate passage, allowing exhaust energy to drive the turbocharger turbine. As boost pressure increases and the wastegate opens, exhaust gases are redirected through the wastegate to help regulate turbocharger speed and boost pressure.
Over time, repeated exposure to extreme exhaust temperatures, pressure fluctuations, and normal operating conditions can contribute to wear, pitting, or damage to the valve seat. A compromised sealing surface may allow exhaust gases to bypass the turbine when the wastegate should remain closed, potentially affecting turbocharger spool characteristics and boost response.
The TS-0551-3001 provides a direct replacement for the original valve seat in compatible GenV UltraGate38 wastegates, allowing enthusiasts to service their existing wastegate without purchasing an entirely new assembly.
Whether maintaining a turbocharged Honda K20/K24, repairing an exhaust leak within a wastegate assembly, or refreshing a dedicated motorsport turbocharger system, the Turbosmart TS-0551-3001 Replacement Valve Seat delivers genuine fitment, durable construction, and dependable sealing performance.
Features
Genuine Turbosmart Replacement Component: Designed specifically for the GenV UltraGate38 external wastegate.
38mm Wastegate Compatibility: Fits compatible Turbosmart GenV UltraGate38 assemblies.
High-Grade Stainless Steel Construction: Designed to withstand demanding exhaust system conditions.
Precision-Machined Sealing Surface: Provides the proper contact surface for the wastegate valve.
Reliable Exhaust Gas Sealing: Helps prevent unwanted exhaust bypass when the wastegate is closed.
Consistent Boost Control: Supports proper wastegate operation and turbocharger boost regulation.
Direct Replacement Design: Replaces the original GenV UltraGate38 valve seat.
High-Temperature Durability: Suitable for the extreme thermal conditions present in turbocharger exhaust systems.
Resistance to Exhaust Exposure: Stainless steel construction provides durability in demanding operating environments.
Wastegate Maintenance Component: Allows servicing without replacing the complete wastegate.
Restores Proper Valve Seating: Helps correct sealing problems caused by a damaged or worn seat.
Supports Turbocharger Efficiency: Maintains the intended exhaust gas flow path through the turbine.
Street and Motorsport Applications: Suitable for compatible daily-driven, drag racing, and track vehicles.
Universal Vehicle Application: Compatibility depends on the installed Turbosmart wastegate rather than the vehicle.
Turbosmart Part Number TS-0551-3001: Ensures accurate product identification and ordering.
Popular Performance Applications
The Turbosmart TS-0551-3001 is designed for turbocharged vehicles equipped with a Turbosmart GenV UltraGate38 external wastegate.
Popular performance applications include:
Honda Civic K20 Turbo Builds: K20A, K20A2, K20Z1, and K20Z3 turbocharger systems equipped with a GenV UltraGate38.
Honda Civic K24 Turbo Builds: Custom K24A and K24A2 forced-induction applications.
Acura RSX Type-S Turbo Builds: External wastegate turbocharger installations.
Acura TSX K24 Turbo Applications: Compatible aftermarket turbocharger systems.
Honda Accord K-Series Turbo Builds: Custom external wastegate configurations.
Honda S2000 Turbo Builds: F20C and F22C forced-induction applications.
Acura Integra Turbo Builds: B-Series and K-Series turbocharger systems.
Honda Prelude Turbo Builds: Custom H-Series and K-Series forced-induction installations.
K20/K24 Frankenstein Turbo Builds: Performance K-Series turbocharger applications.
B16, B18, and B20 Turbo Builds: Modified B-Series engines using the UltraGate38.
Subaru WRX and STI Turbo Builds: Compatible external wastegate installations.
Mitsubishi Evolution Turbo Builds: Aftermarket turbocharger systems using the UltraGate38.
Nissan SR20DET and RB-Series Turbo Builds: Custom external wastegate applications.
Toyota 1JZ and 2JZ Turbo Builds: Compatible turbocharger systems.
Drag Racing Applications: External wastegate maintenance and servicing.
Roll Racing Applications: High-performance turbocharger system maintenance.
Track and Motorsport Vehicles: Replacement of worn or damaged wastegate sealing components.
Important: This is a universal replacement component, not a vehicle-specific direct-fit part. Compatibility is determined by the installed wastegate model.
Additional Information
- Manufacturer: Turbosmart
- Part Number: TS-0551-3001
- Product Name: GenV WG38 UltraGate38 Valve Seat
- Product Type: External Wastegate Replacement Valve Seat
- Compatible Wastegate: Turbosmart GenV UltraGate38
- Wastegate Size: 38mm
- Material: High-Grade Stainless Steel
- Primary Function: Sealing the Wastegate Valve Against the Exhaust Gas Passage
- Installation Location: Wastegate Valve Seat / Inlet Assembly
- Vehicle Fitment: Universal, Based on Wastegate Compatibility
- GenV CompGate40 Compatibility: Not Listed
- GenV HyperGate45 Compatibility: No
- GenV ProGate50 Compatibility: No
- UPC: 9329677021288
Genuine Turbosmart GenV UltraGate38 Replacement Valve Seat
The TS-0551-3001 is manufactured specifically for the Turbosmart GenV UltraGate38 external wastegate.
Its precision-machined design provides the correct sealing surface for the wastegate valve.
Using the correct replacement valve seat helps maintain the intended relationship between the wastegate valve and its exhaust passage.
This is particularly important for turbocharger systems where consistent exhaust gas control is necessary for predictable boost performance.
High-Grade Stainless Steel Construction
The valve seat is manufactured from high-grade stainless steel.
External wastegate components are exposed to extreme temperatures and repeated heating and cooling cycles.
Stainless steel provides the strength and durability required for these demanding operating conditions.
The material also offers resistance to oxidation and deterioration associated with exhaust gas exposure.
How an External Wastegate Valve Seat Works
An external wastegate regulates turbocharger boost pressure by controlling the amount of exhaust gas that bypasses the turbine.
When the wastegate is closed, the wastegate valve contacts the valve seat.
This contact creates a seal that restricts exhaust gas flow through the wastegate passage.
As the wastegate actuator opens the valve, exhaust gases are allowed to bypass the turbine.
This helps control turbocharger speed and boost pressure.
The valve seat provides the surface against which the wastegate valve closes, making it an essential component of the wastegate's sealing system.
Importance of Proper Wastegate Sealing
A properly functioning wastegate should remain seated when the engine's operating conditions require it to be closed.
If the valve seat becomes damaged, exhaust gas may escape through the wastegate passage prematurely.
Depending on the severity of the problem, this can contribute to:
Slower turbocharger spool.
Reduced boost response.
Difficulty reaching the desired boost pressure.
Inconsistent turbocharger performance.
Exhaust leakage through the wastegate.
Reduced efficiency of the turbocharger system.
Replacing a damaged valve seat helps restore the intended sealing interface when the seat itself is responsible for the problem.
GenV UltraGate38 Compatibility
The TS-0551-3001 is specifically listed for the Turbosmart GenV UltraGate38 38mm external wastegate.
The GenV UltraGate38 features a compact design with a traditional two-bolt mounting arrangement.
This replacement valve seat is designed to match the corresponding GenV wastegate configuration.
It should not be assumed interchangeable with earlier-generation UltraGate38 components or other Turbosmart wastegate families.
GenV vs. Earlier-Generation Wastegates
Turbosmart has produced multiple generations of external wastegates.
Although different generations may share similar names or valve sizes, their internal components are not necessarily interchangeable.
The TS-0551-3001 is specifically identified as a GenV replacement valve seat.
For earlier-generation wastegates, verify the appropriate replacement part number before ordering.
Valve Seat vs. Valve and Guide Assembly
Turbosmart offers multiple service components for the GenV UltraGate38.
TS-0551-3001 – GenV UltraGate38 Valve Seat
Replacement sealing seat.
High-grade stainless steel construction.
Designed for the GenV UltraGate38.
Intended to restore the valve's sealing surface.
TS-0551-3002 – GenV WG38 Valve and Guide Set
Replacement valve and guide assembly.
Designed for compatible GenV UltraGate38 wastegates.
Intended for servicing the valve and guide components.
These are separate replacement components.
If the wastegate valve itself is damaged, replacing the seat alone may not resolve the problem.
Inspect both the valve and seat before selecting replacement parts.
Valve Seat vs. Wastegate Spring
The valve seat does not determine the wastegate's nominal spring pressure.
The internal actuator spring establishes the mechanical pressure setting, while the valve seat provides the sealing surface for the exhaust valve.
Replacing the TS-0551-3001 does not increase or decrease the wastegate's spring pressure rating.
Common Valve Seat Wear Conditions
Valve seats may require replacement due to:
Pitting on the sealing surface.
Heat-related deterioration.
Physical damage during wastegate servicing.
Uneven valve contact.
Contamination or debris damage.
Wear caused by repeated operating cycles.
Damage resulting from an incorrectly assembled wastegate.
The condition of the wastegate valve should also be inspected whenever the seat is replaced.
Important Compatibility Restrictions
The TS-0551-3001 is intended for the GenV UltraGate38.
Turbosmart lists separate valve seat components for other wastegate models.
For example, the GenV HyperGate45 uses replacement valve seat TS-0553-3001.
Do not select a replacement valve seat based solely on wastegate diameter or external appearance.
Always confirm the exact Turbosmart wastegate model and generation.
Common Reasons for Replacement
Worn Wastegate Valve Seat: Replaces a sealing surface affected by normal wear.
Damaged Sealing Surface: Restores the valve contact area when the original seat is damaged.
Exhaust Leakage: Addresses leakage caused by a compromised valve seat.
Slow Turbocharger Spool: Repairs a leaking wastegate seat when diagnosed as the cause.
Difficulty Building Boost: Restores proper sealing when the valve seat is allowing premature exhaust bypass.
Wastegate Rebuilds: Provides a genuine replacement component during servicing.
Heat-Related Damage: Replaces a seat affected by extreme operating conditions.
Used Wastegate Restoration: Allows refurbishment of an existing GenV UltraGate38.
Turbocharger System Maintenance: Supports reliable wastegate operation.
Preventative Motorsport Maintenance: Replaces a damaged seat before it causes additional performance issues.
Replacing Incorrect Components: Restores the proper GenV UltraGate38 sealing arrangement.
Installation Notes
Verify Wastegate Compatibility: Confirm that the installed wastegate is a Turbosmart GenV UltraGate38.
Review Turbosmart Instructions: Follow the manufacturer's installation and servicing documentation.
Allow the Exhaust System to Cool: Wastegate and turbocharger components can reach extremely high temperatures.
Locate the Wastegate: Identify the external wastegate mounted to the exhaust manifold or associated exhaust plumbing.
Inspect the Existing Installation: Check for exhaust leaks, damaged hardware, or loose connections.
Disconnect Associated Components: Remove pressure reference hoses or nearby components as required.
Remove the Wastegate if Necessary: Follow the correct procedure for the installation.
Inspect the Original Valve Seat: Check for pitting, cracks, deformation, or other damage.
Remove the Existing Seat: Carefully remove the original component according to Turbosmart's instructions.
Inspect the Wastegate Valve: Verify that the valve face is undamaged and capable of sealing correctly.
Inspect the Valve Guide: Check for excessive wear or binding.
Clean the Mounting Area: Remove carbon deposits and debris without damaging the sealing surfaces.
Inspect the Replacement Seat: Confirm that the TS-0551-3001 is undamaged.
Install the New Valve Seat: Position the replacement component in the correct orientation.
Verify Proper Seating: Ensure the replacement is fully and evenly positioned.
Reassemble the Wastegate: Follow the manufacturer's recommended procedure.
Inspect the Wastegate Valve Movement: Confirm that the valve moves freely and closes correctly.
Reinstall the Wastegate: Secure the assembly using the appropriate mounting hardware.
Inspect Exhaust Connections: Check gaskets, flanges, and fasteners for proper installation.
Reconnect Pressure Reference Lines: Restore the correct boost control plumbing.
Check for Exhaust Leaks: Verify sealing around the wastegate installation.
Perform Controlled Initial Testing: Monitor boost pressure and turbocharger response.
Reinspect After Installation: Check for leaks, loose hardware, or abnormal wastegate operation.
Important: Wastegate components are exposed to extreme exhaust temperatures. Improper installation can cause exhaust leaks or unstable boost control. Professional installation is recommended when servicing internal wastegate valve components.
What's Included
(1) Turbosmart GenV UltraGate38 38mm External Wastegate Replacement Valve Seat (TS-0551-3001)
Note: This listing includes the replacement valve seat only. The complete wastegate, valve and guide assembly, actuator springs, gaskets, mounting hardware, and other accessories are not included.
Restore proper exhaust sealing and maintain consistent turbocharger boost control with the Turbosmart GenV UltraGate38 Replacement Valve Seat (TS-0551-3001).
Manufactured from high-grade stainless steel and designed specifically for the GenV UltraGate38 38mm external wastegate, this genuine replacement component provides the precision sealing surface required for reliable wastegate operation.
Whether maintaining a turbocharged Honda K20/K24, rebuilding a GenV UltraGate38, or servicing a dedicated motorsport turbocharger system, the Turbosmart TS-0551-3001 delivers genuine replacement compatibility, durable construction, and dependable Turbosmart quality.
| Part Number: | TS-0551-3001 |
| Brand: | Turbosmart |
| Color: | Stainless Steel |
| Size: | 38mm |
WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects. www.P65Warnings.ca.gov.
Vehicle Fitment
This part does not have vehicle specific fitment. Please contact us if you need assistance.
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