HKS

HKS Radiator Cap

The HKS Radiator cap features the HKS logo and provides improved cooling capabilities for your radiator.

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
Earn USD $ 0.20 in loyalty discounts on your next order.

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We ship to the United States and 150 other countries.

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Vehicle Part Opening Pressure   Price Order
15009-AK004
In stock at HKS
180SX - RS13
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Avenir - W10
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Cedric/Gloria - Y31
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Cedric/Gloria - SY31
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Cedric/Gloria - Y32
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Cedric/Gloria - Y33
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Cefiro - A31
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Cima - FGY33
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Cube - Z10
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Cube - Z11
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Cube - Z12
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Dayz - B21W (AA0)
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Dayz Roox - B21A (BA0)
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Elgrand - E50
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Elgrand - E51
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Fairlady Z - 350Z - Z33
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Fairlady Z - Z32
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Fuga - Y50
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Juke - F15
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Laurel - C33
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Laurel - C34
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Laurel - C35
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
March - K11
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
March - K12
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
March - K13
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Primera - P10
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Primera - P11
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Pulsar - N15
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Pulsar GTiR - RNN14
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Serena - C26
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Silvia - S13
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Silvia - S14
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Silvia - S15
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Skyline - R31
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Skyline - V35
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Skyline - R32 GTS-t/4 - HCR32
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Skyline - R33 GTS-t - ECR33
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Skyline - R34 25GTT - ER34
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Skyline GT-R - BNR32
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Skyline GT-R - BCNR33
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Skyline GT-R - BNR34
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Stagea - 260RS Autech - WGNC34
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Stagea - 350S Autech - AM35
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Stagea - WC34
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Stagea - M35
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
X-Trail - T32
Type S
USD $ 19.74
3,117 JPY
Vehicle Part Opening Pressure   Price Order
15009-AK005
In stock at HKS
86 - ZN6
Type N
USD $ 19.74
3,117 JPY
15009-AK005
In stock at HKS
86 - GRMN86
Type N
USD $ 19.74
3,117 JPY
15009-AK005
In stock at HKS
Altezza AS200 - GXE10
Type N
USD $ 19.74
3,117 JPY
15009-AK005
In stock at HKS
Altezza RS200 - SXE10
Type N
USD $ 19.74
3,117 JPY
15009-AK005
In stock at HKS
Aristo V300 - JZS161
Type N
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Chaser - GX81
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Cresta - GX81
Type S
USD $ 19.74
3,117 JPY
15009-AK005
In stock at HKS
GR Yaris RS - MXPA12
Type N
USD $ 19.74
3,117 JPY
15009-AK005
In stock at HKS
Mark 2 - JZX110
Type N
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
MR2 - AW11
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
MR2 - SW20
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Soarer 2.0GT - GZ20
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Soarer 3.0GT - MZ20
Type S
USD $ 19.74
3,117 JPY
15009-AK005
In stock at HKS
Soarer 430SCV - UZZ40
Type N
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Sprinter - AE92
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Sprinter Trueno - AE86
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Starlet - EP71
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Supra A70 MKIII - GA70
Type S
USD $ 19.74
3,117 JPY
15009-AK005
In stock at HKS
Supra A80 MKIV - JZA80
Type N
USD $ 19.74
3,117 JPY
15009-AK005
In stock at HKS
Vitz - NCP131
Type N
USD $ 19.74
3,117 JPY
Vehicle Part Opening Pressure   Price Order
15009-AK004
In stock at HKS
Airtrek - CU2W
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Delica D:5 - CV5W
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
FTO - DE3A
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Galant Fortis - CY4A
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Galant VR-4 - E39A
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Galant VR-4RS - E38A
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
GTO - Z15A
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
GTO - Z16A
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Lancer Evolution IV - CN9A
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Lancer Evolution IX - CT9A
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Lancer Evolution V - CP9A
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Lancer Evolution VI - CP9A
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Lancer Evolution VII - CT9A
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Lancer Evolution VIII - CT9A
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Lancer Evolution X - CZ4A
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Outlander - CW5W
Type S
USD $ 19.74
3,117 JPY
Vehicle Part Opening Pressure   Price Order
15009-AK004
In stock at HKS
Beat - PP1-100
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Beat - PP1-110
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Civic - EF9
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Civic - EG6
Type S
USD $ 19.74
3,117 JPY
15009-AK005
In stock at HKS
1.1
Civic Type R Euro - FN2
Type N
1.1
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
CR-X del Sol SiR - EG2
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
CR-X SiR - EF8
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Integra - DA6
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Integra - DA8
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
S660 - JW5
Type S
USD $ 19.74
3,117 JPY
Vehicle Part Opening Pressure   Price Order
15009-AK004
In stock at HKS
Axela Sport - BMEFS
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Eunos Roadster - NA6CE
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Eunos Roadster - NA8C
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Familia - BG8R
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Roadster - NB6C
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Roadster - NB8C
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Roadster - NCEC
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Roadster - ND5RC
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
RX-7 - FC3S
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
RX-7 - FD3S
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
RX-8 - SE3P
Type S
USD $ 19.74
3,117 JPY
Vehicle Part Opening Pressure   Price Order
15009-AK004
In stock at HKS
Exiga - YA5
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Forester - SF5
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Forester - SG5
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Forester - SH5
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Impreza - GH8
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Impreza Sports Wagon WRX - GF8
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Impreza Sports Wagon WRX - GGA
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Impreza Sports Wagon WRX STI - GGB
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Impreza WRX - GC8
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Impreza WRX - GDA
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Impreza WRX STI - GDB
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Impreza WRX STI - GRB
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Impreza WRX STI - GRF
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Impreza WRX STI - GVF
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Legacy - BD5
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Legacy B4 - BE5
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Legacy B4 - BL5
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Legacy B4 - BM9
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Legacy B4 - BMM
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Legacy Touring Wagon - BG5
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Legacy Touring Wagon - BH5
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Legacy Touring Wagon - BP5
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Legacy Touring Wagon - BR9
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Legacy Touring Wagon - BRM
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Levorg - VMG
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Levorg - VM4
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
WRX S4 - VAG
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
WRX STI - VAB
Type S
USD $ 19.74
3,117 JPY
Vehicle Part Opening Pressure   Price Order
15009-AK004
In stock at HKS
Cappuccino - EA21R
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Cappuccino - EA11R
Type S
USD $ 19.74
3,117 JPY
Vehicle Part Opening Pressure   Price Order
15009-AK004
In stock at HKS
Mira Gino - L701S
Type S
USD $ 19.74
3,117 JPY
15009-AK004
In stock at HKS
Mira Gino - L711S
Type S
USD $ 19.74
3,117 JPY

About HKS

HKS

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.

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