Genuine BMW Z4 Coolant Reservoir Hose

Water Bypass Hose

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18 Coolant Reservoir Hoses found

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BMW Z4 Radiator Coolant Hose Upper
Part Number: 17127612444
$85.11 MSRP: $114.58
You Save: $29.47 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Coolant Hose; Lower Hose, Upper Hose
- Position: Upper
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2012-2016 BMW Z4 | sDrive28i(E89)
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BMW Z4 Radiator Coolant Hose Compatible
Part Number: 17127612445
$85.11 MSRP: $114.58
You Save: $29.47 (26%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Coolant Hose; Lower Hose, Upper Hose
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2012-2016 BMW Z4 | sDrive28i(E89)
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BMW Z4 Coolant Hose
Part Number: 17127612446
$67.72 MSRP: $89.68
You Save: $21.96 (25%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Inlet Hose
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2012-2016 BMW Z4 | sDrive28i(E89)
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BMW Z4 Line from Coolant Pump-Cylinder
Part Number: 11538650983
$84.27 MSRP: $106.58
You Save: $22.31 (21%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: By-Pass Hose
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2020-2025 BMW Z4 | 6 Cyl 3.0 L GAS, M40i(G29)
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BMW Z4 LINE FROM COOLANT PUMP-CYLIN
Part Number: 11538650984
$109.25 MSRP: $138.17
You Save: $28.92 (21%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: By-Pass Hose, Cooling Pipe, Pipe, Rear Hose
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2019-2025 BMW Z4 | 4 Cyl 2.0 L GAS, sDrive30i(G29)
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BMW Z4 Refrigerant Pipe
Part Number: 11518482258
$35.11 MSRP: $43.68
You Save: $8.57 (20%)
Ships in 1-3 Business Days
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Product Specifications
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2020-2025 BMW Z4 | 6 Cyl 3.0 L GAS, M40i(G29)
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BMW Z4 Connector
Part Number: 11518482253
$30.46 MSRP: $37.89
You Save: $7.43 (20%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Elbow, Pipe Adapter, Water Outlet
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2019-2025 BMW Z4 | 4 Cyl 2.0 L GAS, sDrive30i(G29)
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BMW Z4 WIRE HEAT MANAGEMENT MODULE
Part Number: 11538651265
$63.45 MSRP: $78.92
You Save: $15.47 (20%)
Ships in 1-3 Business Days
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Product Specifications
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2019-2025 BMW Z4 | 4 Cyl 2.0 L GAS, sDrive30i(G29)
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BMW Z4 HOSE FOR EXPANSION TANK
Part Number: 17128654832
$63.19 MSRP: $83.68
You Save: $20.49 (25%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Connector Hose, Coolant Hose, Reservoir Hose
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2019-2025 BMW Z4 | 4 Cyl 2.0 L GAS, 6 Cyl 3.0 L GAS, M40i(G29), sDrive30i(G29)
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BMW Z4 LINE COOLANT FEED EXHAUST TU
Part Number: 11538854736
$81.13 MSRP: $102.61
You Save: $21.48 (21%)
Ships in 1-2 Business Days
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Product Specifications
- Replaces: 11-53-8-629-971
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2019-2025 BMW Z4 | 4 Cyl 2.0 L GAS, sDrive30i(G29)
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BMW Z4 LINE FROM TURBOCHARGER-CYLIN
Part Number: 11538629971
$81.13 MSRP: $102.61
You Save: $21.48 (21%)
Ships in 1-3 Business Days
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Product Specifications
- Replaced by: 11538854736
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2019-2020 BMW Z4 | sDrive30i(G29)
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BMW Z4 LINE COOLANT RETURN EXHAUST
Part Number: 11538854737
$63.45 MSRP: $78.92
You Save: $15.47 (20%)
Ships in 1-2 Business Days
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Product Specifications
- Replaces: 11-53-8-651-261
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2019-2025 BMW Z4 | 4 Cyl 2.0 L GAS, sDrive30i(G29)
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BMW Z4 LINE, TURBOCHARGER-COOLANT P
Part Number: 11538651261
$63.45 MSRP: $78.92
You Save: $15.47 (20%)
Ships in 1-3 Business Days
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Product Specifications
- Replaced by: 11538854737
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2019-2020 BMW Z4 | sDrive30i(G29)
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BMW Z4 LINE EXTERNAL RADIATOR
Part Number: 17128653614
$104.92 MSRP: $141.26
You Save: $36.34 (26%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Water Hose
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2020-2025 BMW Z4 | 6 Cyl 3.0 L GAS, M40i(G29)
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BMW Z4 Radiator Hose
Part Number: 17128654801
$148.99 MSRP: $204.00
You Save: $55.01 (27%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: HOSE, RADIATOR; Lower Hose
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2019-2025 BMW Z4 | 4 Cyl 2.0 L GAS, sDrive30i(G29)
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BMW Z4 HOSE, REMOTE, COOLANT RADIAT
Part Number: 17128653612
$89.36 MSRP: $120.31
You Save: $30.95 (26%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Water Hose
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2019-2025 BMW Z4 | 4 Cyl 2.0 L GAS, sDrive30i(G29)
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BMW Z4 PIPE, EXPANSION TANK-CYLINDE
Part Number: 17128654863
$43.45 MSRP: $57.53
You Save: $14.08 (25%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pipe
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2020-2025 BMW Z4 | 6 Cyl 3.0 L GAS, M40i(G29)
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BMW Z4 PIPE, EXPANSION TANK-CYLINDE
Part Number: 17128653601
$43.45 MSRP: $57.53
You Save: $14.08 (25%)
ADD TO CART
Product Specifications
- Other Name: Pipe
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2019-2025 BMW Z4 | 4 Cyl 2.0 L GAS, sDrive30i(G29)

BMW Z4 Coolant Reservoir Hose

The BMW Z4 Coolant Reservoir Hose controls the flow of coolant that goes out of the radiator and to the reservoir. The system ensures the steady temperature of the engine under all driving conditions. This Coolant Reservoir Hose is molded to automobile manufacturer specifications, withstands the heat cycling of your engine, and blocks air to prevent leaks and overheating. Because of its direct-fit design, owners can quickly install it, helping to protect the precise pressure balance needed by the BMW cooling system. The Z4 has relied on a durable Coolant Reservoir Hose to send expanded fluid to the tank and draw it back when things cool, from early E85 roadsters to today's G29. The Coolant Reservoir Hose will prevent rust, protect the water pump, and improve efficiency on a fun-filled commute by maintaining antifreeze levels. It serves 2.5-liter weekend cruisers, sDrive30i and sDrive35i trims, and the fierce Z4, giving one solution across the whole BMW sports range. Cooling performance gets enhanced when the Coolant Reservoir Hose doesn't swell or burst. This is because of the reinforced rubber walls not allowing that to happen. The Coolant Reservoir Hose features strategic bends to help eliminate kinks, so coolant velocity remains high and the drag on the pump is reduced for greater Z4 agility. The Coolant Reservoir Hose has tightly sealed ends that enable it to lock to quick-connect fittings. This reduces the loss of cabin heater output, which in turn ensures passenger safety on long BMW road trips. The Coolant Reservoir Hose of a BMW should be replaced regularly to ensure the car is track-ready and to enable the Z4 to take on mountain switchbacks without the issue of temperature fade. In the heavy performance-roadster market, the part's BMW reliability and Z4's athleticism make the cooling loop a trusted ally.

If you are looking for OEM BMW Z4 Coolant Reservoir Hose, 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 Z4 Coolant Reservoir Hose that come backed by the manufacturer's warranty.

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2025 Coolant Reservoir Hose 2024 Coolant Reservoir Hose 2023 Coolant Reservoir Hose 2022 Coolant Reservoir Hose 2021 Coolant Reservoir Hose 2020 Coolant Reservoir Hose 2019 Coolant Reservoir Hose 2016 Coolant Reservoir Hose 2015 Coolant Reservoir Hose 2014 Coolant Reservoir Hose 2013 Coolant Reservoir Hose 2012 Coolant Reservoir Hose