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Genuine Honda Civic Hybrid Radiator Cap

Cooling Radiator Cap
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3 Radiator Caps found

  • Diagram for Honda Civic Hybrid Radiator Cap - 19045-PWA-004
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    Honda Civic Hybrid Cap, Radiator (Toyo)

    Part Number: 19045-PWA-004
    $17.64 MSRP: $24.92
    You Save: $7.28 (30%)
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    Product Specifications
    • Other Name: Radiator Cap; Reservoir Cap
    • Replaces: 19045-PNC-004
    • Warranty: This genuine part is guaranteed by Honda's factory warranty.
    Fits the following Vehicles:
    • 2025-2026 Honda Civic Hybrid | 4 Door Sport, 4 Door Sport 2WD, 4 Door Sport Touring, 4 Door Sport Touring 2WD, 5 Door Sport, 5 Door Sport FWD, 5 Door Sport Touring, 5 Door Touring FWD | CVT
  • Diagram for Honda Civic Hybrid Radiator Cap - 19102-RNA-A00
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    Honda Civic Hybrid Cap, Reserve Tank

    Part Number: 19102-RNA-A00
    $2.84 MSRP: $4.02
    You Save: $1.18 (30%)
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    Product Specifications
    • Other Name: Reservoir Cap; Cap, Filler Cap
    • Warranty: This genuine part is guaranteed by Honda's factory warranty.
    Fits the following Vehicles:
    • 2025-2026 Honda Civic Hybrid | 4 Door Sport, 4 Door Sport 2WD, 4 Door Sport Touring, 4 Door Sport Touring 2WD, 5 Door Sport, 5 Door Sport FWD, 5 Door Sport Touring, 5 Door Touring FWD | CVT
  • Diagram for Honda Civic Hybrid Radiator Cap - 1J045-5RD-004
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    Honda Civic Hybrid Cap Complete

    Part Number: 1J045-5RD-004
    $60.52 MSRP: $85.48
    You Save: $24.96 (30%)
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    Product Specifications
    • Other Name: Cap, Reservoir Cap
    • Warranty: This genuine part is guaranteed by Honda's factory warranty.
    Fits the following Vehicles:
    • 2025-2026 Honda Civic Hybrid | 4 Door Sport, 4 Door Sport 2WD, 4 Door Sport Touring, 4 Door Sport Touring 2WD, 5 Door Sport, 5 Door Sport FWD, 5 Door Sport Touring, 5 Door Touring FWD | CVT

Honda Civic Hybrid Radiator Cap

The Honda Civic Hybrid Radiator Cap provides a constant pressure control, providing the cooling system with the stability it needs for confident everyday driving. Trusted on city streets as much as cross country routes, this Radiator Cap locks in at about 16 PSI, raising the boiling point of the coolant so heat remains manageable during traffic jams or when hills are stretched out. A spring loaded valve inside the Radiator Cap shuttles expanding fluid quietly to the overflow tank then reverses flow as temperatures drop which means that the loop stays full and air free, which is key to preventing hot spots that could be damaging efficiency or power. Owners like the fact that every true Honda part of this type will fit first generation through current eleventh generation Civic Hybrid models so one Radiator Cap can be applied whether the car has the original 1.3 liter system or the modern 2.0 liter system. The compact case was tuned by Honda using the slanted hood line, but it still contains a dual seal layout that is resistant to leakage and helps keep the engine bay tidy. Because pressure targets never changed, swapping out a fresh Radiator Cap restores factory behavior instantly, reinforcing fuel economy gains that the hybrid hardware already provides. Regular inspection of the Radiator Cap ensures that the Honda cooling network will keep the Civic Hybrid battery assist engine running at peak, and fans of the Civic Hybrid extol the Radiator Cap's combination of light weight with rugged sealing elements. Safety also increases, as the clearly marked top reminds drivers when release is potentially dangerous, which results in less burns or spills during routine checks. Compared to generic caps, this Radiator Cap stands out for its precision 16 PSI calibration, durable spring steel, and rubber compounds tested by Honda for endurance that has created a reputation for long term reliability that is in line with the general Civic Hybrid record for long term performance.

In search of affordable OEM Honda Civic Hybrid Radiator Cap? Consider browsing through our extensive inventory of genuine Honda Civic Hybrid Radiator Cap. Not only do we provide market-leading prices and a manufacturer's warranty, but we also pride ourselves on exceptional customer service and swift delivery.

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