Genuine OEM Honda Radiator Caps

Your cooling system takes a lot of abuse, especially during the summer months. The extreme heat and pressure of your engine requires the cooling system to be at its best in order to keep your car's engine operating where it should be. Sometimes the extra pressure causes the coolant pressure to build up. The Radiator Cap allows this coolant to be released into a reserve tank when the pressure reaches a certain point. Without the Radiator Cap, the extra pressure could cause the radiator or Radiator Hoses to burst, potentially damaging the engine, and other components. It's important to check the cap to make sure it is working like it should every time you check your coolant.

If you find the cap is leaking or has failed, it is critical to replace it immediately, and only a genuine OEM Radiator Cap is going to fit the OEM Radiator properly. Here at Honda Parts unlimited, we only sell OEM replacement parts for your Honda. All of our parts are sold at huge discounts, we ship fast, and offer numerous affordable shippign options form USPS and FedEx. Mix that wit our World-Class customer service and Google Trusted protection, which offers up to $1000.00 of buyer protection on any order, and you'll see why we've been the leader in OEM Honda parts since 2004!

Below are our most popular Radiator Caps. If you need help finding one, you can contact us by phone, email or web chat to have one of our factory-trained parts professionals help you find what you are looking for.

Cap, Radiator (Denso)
19045-PAA-A01
Replaces: 19045-P08-013
Fits:
  • Honda:
    • ACCORD 5-DOOR,
    • ACCORD COUPE,
    • ACCORD HYBRID SEDAN,
    • ACCORD SEDAN,
    • CIVIC COUPE,
    • CIVIC HATCHBACK,
    • CIVIC HYBRID SEDAN,
    • CIVIC SEDAN,
    • CR-V 5-DOOR,
    • DEL SOL COUPE,
    • ELEMENT 5-DOOR,
    • INSIGHT,
    • ODYSSEY 5-DOOR,
    • PILOT 5-DOOR,
    • PRELUDE COUPE,
    • RIDGELINE SEDAN,
    • S2000 COUPE
  • 12 more
$13.60
$10.77
$13.60
$10.77
Cap, Radiator (Denso)
19045-RAA-003
Fits:
  • Honda:
    • ACCORD COUPE,
    • ACCORD HYBRID SEDAN,
    • ACCORD SEDAN,
    • CIVIC COUPE,
    • CIVIC HYBRID SEDAN,
    • CIVIC NGV SEDAN,
    • CIVIC SEDAN,
    • CR-V 5-DOOR,
    • CROSSTOUR 5-DOOR,
    • ELEMENT 5-DOOR,
    • FIT 5-DOOR,
    • HR-V 5-DOOR,
    • ODYSSEY 5-DOOR,
    • PILOT 5-DOOR,
    • RIDGELINE SEDAN,
    • S2000 COUPE
  • 11 more
$17.58
$13.50
$17.58
$13.50
Cap, Radiator
19045-RAA-A51
Replaces: 19045-PAA-A51
Fits:
  • Honda:
    • ACCORD COUPE,
    • ACCORD SEDAN
$17.58
$13.50
$17.58
$13.50
Cap, Radiator (Toyo)
19045-PWA-004
Fits:
  • Honda:
    • ACCORD COUPE,
    • ACCORD HYBRID SEDAN,
    • ACCORD PLUG-IN SEDAN,
    • ACCORD SEDAN,
    • CIVIC COUPE,
    • CIVIC NGV SEDAN,
    • CIVIC SEDAN,
    • CR-Z HATCHBACK,
    • FIT 5-DOOR,
    • INSIGHT
  • 5 more
$17.58
$13.50
$17.58
$13.50
Cap, Radiator (Denso)
19045-PAA-A01
Replaces: 19045-P08-013
Fits:
  • Honda:
    • ACCORD 5-DOOR,
    • ACCORD COUPE,
    • ACCORD HYBRID SEDAN,
    • ACCORD SEDAN,
    • CIVIC COUPE,
    • CIVIC HATCHBACK,
    • CIVIC HYBRID SEDAN,
    • CIVIC SEDAN,
    • CR-V 5-DOOR,
    • DEL SOL COUPE,
    • ELEMENT 5-DOOR,
    • INSIGHT,
    • ODYSSEY 5-DOOR,
    • PILOT 5-DOOR,
    • PRELUDE COUPE,
    • RIDGELINE SEDAN,
    • S2000 COUPE
  • 12 more
$13.60
$10.77
$13.60
$10.77
Cap, Radiator (Toyo)
19045-P08-014
Replaces: 19045-P08-003, 19045-P08-004
Fits:
  • Honda:
    • CIVIC COUPE,
    • CIVIC HATCHBACK,
    • CIVIC SEDAN,
    • CR-V 5-DOOR,
    • DEL SOL COUPE,
    • PRELUDE COUPE
  • 1 more
$17.58
$13.50
$17.58
$13.50