2014-2021 BMW i3/i3 REx/i3s/i3s REx Coolant Return Hose / Line 64219292729
OEM Part #: 64-21-9-292-729 (64219292729)
Actual photo
The exact part you’ll receive — not a stock photo.
$8.49
Used
Donor2014 BMW i3 · 0.6L · 84k miles
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Genuine OEM Used
SKU: 628371
Donor Vehicle: 2014 BMW i3 · 0.6L · 84k miles
2 photos
$8.49
30-Day Returns
Genuine OEM Used
SKU: 519120
Donor Vehicle: 2014 BMW i3 · 0.6L · 70k miles
2 photos
$8.49
30-Day Returns
Genuine OEM Used
SKU: 504663
Donor Vehicle: 2016 BMW i3 · 0.6L · 40k miles
2 photos
$8.49
30-Day Returns
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This BMW 9292729 coolant return hose (also called a coolant return line) is a used genuine OEM part removed from a donor vehicle. It carries coolant back from the range extender or electric drive components in the i3 and i3s — both the 0.6L two-cylinder range extender (BEV REx) and the full battery-electric version. When this hose cracks or develops a leak, you’ll see coolant loss and potential overheating.
Specifications
| Fits Vehicle Model | i3, i3 REx, i3s, i3s REx |
| Fits Vehicle Make | BMW |
| OEM Part No | 64-21-9-292-729 (64219292729) |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 24 vehicle configurations across 1 make, 2014-2021.
Check your specific vehicle before ordering.
This list shows year, make, and model. Some years have multiple trims or
engines that use different parts, and individual listings may have
additional fitment notes (e.g. “with sunroof only”). Review
the full variant list below, or
message us with your VIN
and we’ll confirm the match.
View all 24 vehicle configurations — 24 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2020 | BMW | i3 | Hatchback | Electric Vehicle | For vehicles WITH option code S4T9A |
| 2021 | BMW | i3 | Hatchback | Electric Vehicle | For vehicles WITH option code S4T9A |
| 2018 | BMW | i3 REx | Hatchback | 0.6L l2 | For vehicles WITHOUT option code S4T9A |
| 2019 | BMW | i3 REx | Hatchback | 0.6L l2 | For vehicles WITHOUT option code S4T9A |
| 2020 | BMW | i3 REx | Hatchback | 0.6L l2 | For vehicles WITHOUT option code S4T9A |
| 2021 | BMW | i3 REx | Hatchback | 0.6L l2 | For vehicles WITHOUT option code S4T9A |
| 2018 | BMW | i3s | Hatchback | Electric Vehicle | For vehicles WITH option code S4T9A |
| 2020 | BMW | i3s | Hatchback | Electric Vehicle | For vehicles WITH option code S4T9A |
| 2019 | BMW | i3s | Hatchback | Electric Vehicle | For vehicles WITH option code S4T9A |
| 2021 | BMW | i3s | Hatchback | Electric Vehicle | For vehicles WITH option code S4T9A |
| 2019 | BMW | i3s REx | Hatchback | 0.6L l2 | For vehicles WITHOUT option code S4T9A |
| 2018 | BMW | i3s REx | Hatchback | 0.6L l2 | For vehicles WITHOUT option code S4T9A |
| 2020 | BMW | i3s REx | Hatchback | 0.6L l2 | For vehicles WITHOUT option code S4T9A |
| 2021 | BMW | i3s REx | Hatchback | 0.6L l2 | For vehicles WITHOUT option code S4T9A |
| 2014 | BMW | i3 | Hatchback | Electric Vehicle | For vehicles WITH option code S4T9A |
| 2015 | BMW | i3 | Hatchback | Electric Vehicle | For vehicles WITH option code S4T9A |
| 2016 | BMW | i3 | Hatchback | Electric Vehicle | For vehicles WITH option code S4T9A |
| 2014 | BMW | i3 REx | Hatchback | 0.6L l2 | For vehicles WITHOUT option code S4T9A |
| 2016 | BMW | i3 REx | Hatchback | 0.6L l2 | For vehicles WITHOUT option code S4T9A |
| 2015 | BMW | i3 REx | Hatchback | 0.6L l2 | For vehicles WITHOUT option code S4T9A |
| 2017 | BMW | i3 | Hatchback | Electric Vehicle | For vehicles WITH option code S4T9A |
| 2017 | BMW | i3 REx | Hatchback | 0.6L l2 | For vehicles WITHOUT option code S4T9A |
| 2018 | BMW | i3 | Hatchback | Electric Vehicle | For vehicles WITH option code S4T9A |
| 2019 | BMW | i3 | Hatchback | Electric Vehicle | For vehicles WITH option code S4T9A |