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Genuine BMW X4 Radiator Cap

Cooling Radiator Cap
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2 Radiator Caps found

  • Diagram for BMW X4 Radiator Cap - 17117639020
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    BMW X4 Radiator Cap

    Part Number: 17117639020
    $23.00 MSRP: $34.96
    You Save: $11.96 (35%)
    Ships in 1-3 Business Days
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    Product Specifications
    • Other Name: Screw Cap For Expansion Tank; Cap, Reservoir Cap
    • Replaces: 17-11-7-521-071
    • Warranty: This genuine part is guaranteed by BMW's factory warranty.
    Fits the following Vehicles:
    • 2015-2024 BMW X4 | 4 Cyl 2.0 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.0 L MILD HYBRID EV-GAS (MHEV), M40i(F26), M40i(G02), xDrive28i(F26), xDrive30i(G02), xDrive35i(F26)
  • BMW X4 Radiator Cap - 17135A1BD89
    Diagram for BMW X4 Radiator Cap - 17135A1BD89
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    BMW X4 SCREW PLUG, EXPANSION TANK

    Part Number: 17135A1BD89
    $23.00 MSRP: $34.96
    You Save: $11.96 (35%)
    Ships in 1-3 Business Days
    ADD TO CART
    Product Specifications
    • Other Name: Cap, Cover Cap, Radiator Cap, Reservoir Cap
    • Position: Passenger Side
    • Replaces: 17-13-2-754-264, 17-11-7-639-024
    • Warranty: This genuine part is guaranteed by BMW's factory warranty.
    Fits the following Vehicles:
    • 2019-2024 BMW X4 | 4 Cyl 2.0 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.0 L MILD HYBRID EV-GAS (MHEV), M40i(G02), xDrive30i(G02)

BMW X4 Radiator Cap

BMW X4 Radiator Cap helps to improve your engine's performance by regulating temperature. A misfire or faulty Radiator Cap can cause excess pressure in the system and make it boil over. By sealing coolant at roughly 16 PSI, particularly spirited driving should not cause systems to boil over. The BMW Radiator Cap performs a simple task with elegant design and high-quality materials. It is located on the neck of the radiator. It holds pressure until the heat lifts its spring for a brief moment. Then, it releases a bit of extra fluid into the overflow bottle before resealing. It will also allow for a vacuum effect to pull some of the coolant back in when things cool down. The fast opening and closing cycle of the Radiator Cap increases the boiling point of the coolant, allowing consistent power delivery and enabling each X4 to remain agile in city traffic or on twisty climbs. All generations fitment enables the early X4 xDrive28i owner and the recent M40i driver to install the same factory Radiator Cap without any swapping of gaskets or brackets. Subsequent BMW models adopted a vented Radiator Cap which also vents off some trapped air; however, the dimensions remain unchanged, so one part number now serves diesel, petrol, and high output variants. BMW ensures that each of the X4's components is interchangeable despite the model differences. The tough seals and the corrosion-resistant material prevent the Radiator Cap from leaking when dealing with head gasket failures, and it also means that the Radiator Cap has bright warnings on top that enable easy visual checks at weekend fluid top-ups. Many drivers report better heater performance in the winter and steadier turbo temperatures in the summer because the BMW Radiator Cap stabilizes the pressure across the whole cooling loop. This provides the spirited X4 with an additional safety margin before levels become dangerous. The genuine BMW unit in a busy parts market is known for its proven track and commute performance, making this small upgrade a wise move to keep any adventure-ready X4 efficient, responsive, and secure.

If you are looking for OEM BMW X4 Radiator Cap, we highly recommend to shop with us. Not only do we offer budget friendly prices, but we also provide fast delivery. In addition, we have a hassle-free return policy on all genuine BMW X4 Radiator Cap that come backed by the manufacturer's warranty.

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