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SKU: 1430-RN005 | UPC: 4957266610268
HKS 93-98 Nissan Silvia S14 / 99-02 S15 Single Port Internal Wastegate Actuator
The HKS Single Port Internal Wastegate Actuator replaces the factory unit on 93-98 Nissan Silvia S14 and 99-02 S15 models equipped with SR20DET engines and single port internal wastegate turbos. It features a larger diaphragm for quicker boost response and consistent pressure across the rev range. Tuners rely on this actuator for reliable operation during street and track use.
Key Features
- Larger diaphragm: Delivers faster actuation and holds boost steady under demanding conditions to prevent creep
- Three interchangeable springs: Includes IL0.3kg IL0.5kg and IL0.7kg/cm² options for tuning boost from 4psi to 10psi
- Stainless steel actuator rod: Resists corrosion and withstands high heat for extended service life
- Aluminum mounting bracket: Ensures direct bolt-on fit with no modifications required
- Reinforced diaphragm material: Handles repeated cycles without fatigue for dependable daily driving
Product Notes
- Confirm turbocharger uses single port wastegate before purchase
- Replace actuator spring after major boost changes to maintain accuracy
- Securely packaged to prevent damage during transit
Installation Notes
- Professional installation recommended.
- Depressurize turbo system and disconnect battery prior to removal of stock actuator
- Bolt-on design uses factory mounting points no additional hardware needed
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1993-1998 | Nissan | Silvia | S14 |
| 1999-2002 | Nissan | Silvia | S15 |
| 1995-1998 | Nissan | 240SX | S14 |
| 1994-1998 | Nissan | 180SX | RPS14 |
Why Choose HKS?
- Decades of turbocharger development for JDM platforms
- Components tested in professional motorsports
- Manufactured to exacting Japanese standards
Frequently Asked Questions
-
Q: Will this actuator fit my SR20DET S14 Silvia?
A: Yes it directly replaces the OEM actuator on 93-98 S14 Silvia with single port internal wastegate turbo -
Q: What materials are used in construction?
A: Features a reinforced rubber diaphragm stainless steel rod and aluminum bracket for heat and wear resistance -
Q: Do I need tuning after installation?
A: Yes boost controller adjustment and dyno tuning recommended to dial in the new spring rate
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Compact box 6 x 4 x 4 inches
- Weight: 0.88 lbs
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