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Truck & Jeep Radiator Caps & Fill Necks

1.3 bar (19 psi) high-pressure radiator cap
Ergonomically designed for easy removal and installation
For use with high-performance cooling systems.

Shop all Truck & Jeep Radiator Caps & Fill Necks

Truck & Jeep Radiator Caps & Fill Necks

Radiator Caps

High-pressure radiator caps raise boiling point of coolant for more efficient cooling,

Lifetime Warranty

All Mishimoto products carry a lifetime warranty which includes accident protection.

Click to Mishimoto Lifetime Warranty

Truck & Jeep Radiator Caps & Fill Necks

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Carbon Fiber 1.3 Bar Radiator Cap, Small

Regular Price: $41.60

Sale Price $31.95
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Mishimoto 1.1 Bar Ford Overflow Reservoir Cap

Regular Price: $15.60

Sale Price $11.95
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Mishimoto 1.1 Bar Ford Overflow Reservoir Cap, 1999–2016

Regular Price: $15.60

Sale Price $11.95
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Mishimoto Aluminum Fill Neck, Large

Regular Price: $20.80

Sale Price $15.95

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Mishimoto Aluminum Fill Neck, Small

Regular Price: $20.80

Sale Price $15.95
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Mishimoto High-Pressure 1.3 Bar Radiator Cap Large

Regular Price: $26.00

Sale Price $19.95
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Mishimoto High-Pressure 1.3 Bar Radiator Cap Small

Regular Price: $26.00

Sale Price $19.95
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Mishimoto High-Pressure 2.0 Bar Radiator Cap Small

Regular Price: $26.00

Sale Price $19.95

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Mishimoto Temperature Gauge 1.3 Bar Radiator Cap Large

Regular Price: $67.60

Sale Price $50.95
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Mishimoto Temperature Gauge 1.3 Bar Radiator Cap Small

Regular Price: $67.60

Sale Price $50.95
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Silicone Coupler, 2.5" w/ 1/8" NPT Bung

Regular Price: $52.00

Sale Price $31.95

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