The HKS Radiator cap features the HKS logo and provides improved cooling capabilities for your radiator.
Features
- Now available in standard 0.9kg/cm2 and increased 1.1kg/cm2 opening/closing pressure
- Improved silicone rubber and sealing characteristics
- Provides improved cooling operation in extreme conditions
- Available for many vehicle, see the HKS reference below
We ship to the United States and 150 other countries.
Japan Post EMS & ePacket, FedEx, DHL and more.
| Vehicle | Part | Opening Pressure | Price | Order | |
|---|---|---|---|---|---|
| 15009-AK004 In stock at HKS | |||||
| | |||||
| 180SX - RS13 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Avenir - W10 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Cedric/Gloria - Y31 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Cedric/Gloria - SY31 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Cedric/Gloria - Y32 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Cedric/Gloria - Y33 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Cefiro - A31 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Cima - FGY33 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Cube - Z10 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Cube - Z11 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Cube - Z12 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Dayz - B21W (AA0) | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Dayz Roox - B21A (BA0) | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Elgrand - E50 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Elgrand - E51 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Fairlady Z - 350Z - Z33 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Fairlady Z - Z32 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Fuga - Y50 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Juke - F15 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Laurel - C33 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Laurel - C34 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Laurel - C35 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| March - K11 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| March - K12 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| March - K13 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Primera - P10 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Primera - P11 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Pulsar - N15 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Pulsar GTiR - RNN14 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Serena - C26 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Silvia - S13 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Silvia - S14 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Silvia - S15 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Skyline - R31 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Skyline - V35 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Skyline - R32 GTS-t/4 - HCR32 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Skyline - R33 GTS-t - ECR33 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Skyline - R34 25GTT - ER34 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Skyline GT-R - BNR32 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Skyline GT-R - BCNR33 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Skyline GT-R - BNR34 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Stagea - 260RS Autech - WGNC34 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Stagea - 350S Autech - AM35 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Stagea - WC34 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Stagea - M35 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| X-Trail - T32 | Type S | | | ||
| Vehicle | Part | Opening Pressure | Price | Order | |
|---|---|---|---|---|---|
| 15009-AK005 In stock at HKS | |||||
| | |||||
| 86 - ZN6 | Type N | | | | |
| 15009-AK005 In stock at HKS | |||||
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| 86 - GRMN86 | Type N | | | | |
| 15009-AK005 In stock at HKS | |||||
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| Altezza AS200 - GXE10 | Type N | | | | |
| 15009-AK005 In stock at HKS | |||||
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| Altezza RS200 - SXE10 | Type N | | | | |
| 15009-AK005 In stock at HKS | |||||
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| Aristo V300 - JZS161 | Type N | | | | |
| 15009-AK004 In stock at HKS | |||||
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| Chaser - GX81 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Cresta - GX81 | Type S | | | ||
| 15009-AK005 In stock at HKS | |||||
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| GR Yaris RS - MXPA12 | Type N | | | | |
| 15009-AK005 In stock at HKS | |||||
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| Mark 2 - JZX110 | Type N | | | | |
| 15009-AK004 In stock at HKS | |||||
| | |||||
| MR2 - AW11 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| MR2 - SW20 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Soarer 2.0GT - GZ20 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Soarer 3.0GT - MZ20 | Type S | | | ||
| 15009-AK005 In stock at HKS | |||||
| | |||||
| Soarer 430SCV - UZZ40 | Type N | | | | |
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Sprinter - AE92 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Sprinter Trueno - AE86 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Starlet - EP71 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Supra A70 MKIII - GA70 | Type S | | | ||
| 15009-AK005 In stock at HKS | |||||
| | |||||
| Supra A80 MKIV - JZA80 | Type N | | | | |
| 15009-AK005 In stock at HKS | |||||
| | |||||
| Vitz - NCP131 | Type N | | | | |
| Vehicle | Part | Opening Pressure | Price | Order | |
|---|---|---|---|---|---|
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Airtrek - CU2W | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Delica D:5 - CV5W | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| FTO - DE3A | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Galant Fortis - CY4A | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Galant VR-4 - E39A | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Galant VR-4RS - E38A | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| GTO - Z15A | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| GTO - Z16A | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Lancer Evolution IV - CN9A | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Lancer Evolution IX - CT9A | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Lancer Evolution V - CP9A | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Lancer Evolution VI - CP9A | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Lancer Evolution VII - CT9A | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Lancer Evolution VIII - CT9A | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Lancer Evolution X - CZ4A | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Outlander - CW5W | Type S | | | ||
| Vehicle | Part | Opening Pressure | Price | Order | |
|---|---|---|---|---|---|
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Beat - PP1-100 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Beat - PP1-110 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Civic - EF9 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Civic - EG6 | Type S | | | ||
| 15009-AK005 In stock at HKS | |||||
| 1.1 | |||||
| Civic Type R Euro - FN2 | Type N | 1.1 | | | |
| 15009-AK004 In stock at HKS | |||||
| | |||||
| CR-X del Sol SiR - EG2 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| CR-X SiR - EF8 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Integra - DA6 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Integra - DA8 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| S660 - JW5 | Type S | | | ||
| Vehicle | Part | Opening Pressure | Price | Order | |
|---|---|---|---|---|---|
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Axela Sport - BMEFS | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Eunos Roadster - NA6CE | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Eunos Roadster - NA8C | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Familia - BG8R | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Roadster - NB6C | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Roadster - NB8C | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Roadster - NCEC | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Roadster - ND5RC | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| RX-7 - FC3S | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| RX-7 - FD3S | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| RX-8 - SE3P | Type S | | | ||
| Vehicle | Part | Opening Pressure | Price | Order | |
|---|---|---|---|---|---|
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Exiga - YA5 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Forester - SF5 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Forester - SG5 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Forester - SH5 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
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| Impreza - GH8 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Impreza Sports Wagon WRX - GF8 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Impreza Sports Wagon WRX - GGA | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Impreza Sports Wagon WRX STI - GGB | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Impreza WRX - GC8 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Impreza WRX - GDA | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Impreza WRX STI - GDB | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Impreza WRX STI - GRB | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Impreza WRX STI - GRF | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Impreza WRX STI - GVF | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Legacy - BD5 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Legacy B4 - BE5 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Legacy B4 - BL5 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Legacy B4 - BM9 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Legacy B4 - BMM | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Legacy Touring Wagon - BG5 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Legacy Touring Wagon - BH5 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Legacy Touring Wagon - BP5 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Legacy Touring Wagon - BR9 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Legacy Touring Wagon - BRM | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Levorg - VMG | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Levorg - VM4 | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| WRX S4 - VAG | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| WRX STI - VAB | Type S | | | ||
| Vehicle | Part | Opening Pressure | Price | Order | |
|---|---|---|---|---|---|
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Cappuccino - EA21R | Type S | | | ||
| 15009-AK004 In stock at HKS | |||||
| | |||||
| Cappuccino - EA11R | Type S | | | ||
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.











