HKS have made available the following SR20DET Head System Repair Parts for customer who already own these now discontinued kits and need to replace damaged or worn parts.
Features
- Reinforced Valve Springs (Step2, Step3)
- Reinforced Valve Springs Inner SPG (Step3)
- V/S Retainer (Step2, Step3)
- Stem Seal Set (Step3)
- Rocker Arm Set (Step2, Step3)
We ship to the United States and 150 other countries.
Japan Post EMS & ePacket, FedEx, DHL and more.
| Vehicle | Part | Price | Order |
|---|---|---|---|
| 22001-AN002 In stock at HKS | |||
| Silvia - S13 SR20DET | Reinforced Valve Springs (Step2, Step3) | | |
| 22001-AN003 Limited stock at HKS | |||
| Silvia - S13 SR20DET | Reinforced Valve Springs Inner SPG (Step3) | | |
| 22999-AN001 In stock at HKS | |||
| Silvia - S13 SR20DET | V/S Retainer (Step2, Step3) | | |
| Vehicle | Part | Price | Order |
|---|---|---|---|
| 22001-AN002 In stock at HKS | |||
| Silvia - S14 SR20DET | Reinforced Valve Springs (Step2, Step3) | | |
| 22001-AN003 Limited stock at HKS | |||
| Silvia - S14 SR20DET | Reinforced Valve Springs Inner SPG (Step3) | | |
| 22999-AN001 In stock at HKS | |||
| Silvia - S14 SR20DET | V/S Retainer (Step2, Step3) | | |
| Vehicle | Part | Price | Order |
|---|---|---|---|
| 22001-AN002 In stock at HKS | |||
| Silvia - S15 SR20DET | Reinforced Valve Springs (Step2, Step3) | | |
| 22001-AN003 Limited stock at HKS | |||
| Silvia - S15 SR20DET | Reinforced Valve Springs Inner SPG (Step3) | | |
| 22999-AN001 In stock at HKS | |||
| Silvia - S15 SR20DET | V/S Retainer (Step2, Step3) | | |
| Part | Price | Order |
|---|---|---|
| 22999-AN003 | ||
| Rocker Arm Set (Step2, Step3) | DISCONTINUED This part is no longer available | |
| 22999-AN002 | ||
| Stem Seal Set (Step3) | DISCONTINUED This part is no longer available | |
HKS was founded in October 1973 by Hiroyuki Hasegawa, a former Yamaha engineer, and Goichi Kitagawa, with start-up capital from Sigma Automotive; the name comes from Hasegawa, Kitagawa and Sigma. It began in a small shed at the foot of Mount Fuji, in Fujinomiya, Shizuoka, and is still based there.
In 1974 HKS built one of the first bolt-on turbo kits, for the Nissan L20 engine in the Skyline, raising output from 115 to 160 PS. Turbocharging made its name; today it also makes exhausts, springs, shocks and coilover suspension, and it marked its 50th anniversary in 2023.
Associated JDM Parts
About NENGUN
Since the year 2000, NENGUN has supplied over 500,000 parts direct from Fukuoka, Japan to 170 countries worldwide. If you have any questions, our experienced and friendly customer service team is always happy to help, please send us an enquiry.











