2014-2021 BMW Coolant Expansion Tank / Reservoir / Bottle 17137604431

OEM Part #: 17-13-7-604-431 (17137604431)

Coolant Expansion Tank / Reservoir / Bottle 17137604431 for BMW

Actual photo

The exact part you’ll receive — not a stock photo.

$13.71

Used

Donor2014 BMW i3 · 0.6L · 70k miles

SKU: 284718 · 30-Day Returns

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Coolant Expansion Tank / Reservoir / Bottle 17137604431 — Used (SKU 284718)

Genuine OEM Used SKU: 284718 Donor Vehicle: 2014 BMW i3 · 0.6L · 70k miles 3 photos

$13.71

30-Day Returns

Coolant Expansion Tank / Reservoir / Bottle 17137604431 — Used (SKU 504501)

Genuine OEM Used SKU: 504501 Donor Vehicle: 2016 BMW i3 · 0.6L · 40k miles 3 photos

$18.49

30-Day Returns

Coolant Expansion Tank / Reservoir / Bottle 17137604431 — Used (SKU 526001)

Genuine OEM Used SKU: 526001 Donor Vehicle: 2015 BMW i3 · 0.6L · 56k miles 3 photos

$19.49

30-Day Returns

Coolant Expansion Tank / Reservoir / Bottle 17137604431 — Used (SKU 572076)

Genuine OEM Used SKU: 572076 Donor Vehicle: 2014 BMW i3 · 0.6L 3 photos

$19.49

30-Day Returns

Coolant Expansion Tank / Reservoir / Bottle 17137604431 — Used (SKU 628303)

Genuine OEM Used SKU: 628303 Donor Vehicle: 2014 BMW i3 · 0.6L · 84k miles 3 photos

$22.49

30-Day Returns

Genuine OEM — real photos
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This used BMW coolant expansion tank (OEM 7604431) is the genuine reservoir/bottle for the i3 and i3s equipped with the 0.6L 647cc range-extender engine. It holds coolant and provides space for thermal expansion; a cracked tank can cause low-coolant warnings and overheating.

Specifications

Specifications for Coolant Expansion Tank / Reservoir / Bottle 17137604431
Fits Vehicle Model	i3 REx, i3s REx
Fits Vehicle Make	BMW
OEM Part No	17-13-7-604-431 (17137604431)
Category	Radiator / Coolant

Compatible Vehicles

Fits 12 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.

BMW

i3 REx 2014-2021 · 8 variants
i3s REx 2018-2021 · 4 variants

View all 12 vehicle configurations

Full vehicle fitment list for Coolant Expansion Tank / Reservoir / Bottle 17137604431
Year	Make	Model	Trim	Engine
2014	BMW	i3 REx	Hatchback	0.6L l2
2016	BMW	i3 REx	Hatchback	0.6L l2
2015	BMW	i3 REx	Hatchback	0.6L l2
2017	BMW	i3 REx	Hatchback	0.6L l2
2018	BMW	i3 REx	Hatchback	0.6L l2
2019	BMW	i3 REx	Hatchback	0.6L l2
2020	BMW	i3 REx	Hatchback	0.6L l2
2021	BMW	i3 REx	Hatchback	0.6L l2
2019	BMW	i3s REx	Hatchback	0.6L l2
2018	BMW	i3s REx	Hatchback	0.6L l2
2020	BMW	i3s REx	Hatchback	0.6L l2
2021	BMW	i3s REx	Hatchback	0.6L l2