2014-2021 BMW Lock Switch / Cylinder w/ Key Front, Left 51217310729

OEM Part #: 51-21-7-310-729 (51217310729)

Lock Switch / Cylinder w/ Key 51217310729 for BMW

Actual photo

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

$65.49

Side: Front, Left Used

Donor2018 BMW M4 · 3.0L · 50k miles

SKU: 538780 · 30-Day Returns

✓ Free Same Day Shipping on orders by noon CT

Programming required: this module must be coded to your VIN by a dealer or with the proper diagnostic tool before it will work.

Only 1 in stock — no guaranteed restock

Lock Switch / Cylinder w/ Key 51217310729 — Used (SKU 538780)

Genuine OEM Used SKU: 538780 Donor Vehicle: 2018 BMW M4 · 3.0L · 50k miles 4 photos

SOME SCRATCHES / WEAR ON KEY FOB, SEE PICTURES

$65.49

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This used OEM BMW lock switch with cylinder and key, part number 7310729, was removed from a donor vehicle. Also called a lock switch or cylinder with key, this front-left component controls the door lock when actuated by the key. A faulty switch may fail to send the lock/unlock signal or cause the key to bind. This part must be coded to your vehicle’s VIN on installation by a qualified shop or dealer.

Specifications

Specifications for Lock Switch / Cylinder w/ Key 51217310729
Fits Vehicle Model	228i, 228i xDrive, 230i, 230i xDrive, 328i GT xDrive, 330i GT xDrive, 335i GT xDrive, 340i GT xDrive, 428i, 428i Gran Coupe, 428i xDrive, 428i xDrive Gran Coupe, 430i, 430i Gran Coupe, 430i xDrive, 430i xDrive Gran Coupe, 435i, 435i Gran Coupe, 435i xDrive, 435i xDrive Gran Coupe, 440i, 440i Gran Coupe, 440i xDrive, 440i xDrive Gran Coupe, M2, M235i, M235i xDrive, M240i, M240i xDrive, M4
Fits Vehicle Make	BMW
OEM Part No	51-21-7-310-729 (51217310729)
Side	Front, Left
Category	Steering Wheel / Parts

Compatible Vehicles

Fits 150 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

228i 2014-2016 · 5 variants
228i xDrive 2015-2016 · 4 variants
230i 2017-2019 · 6 variants
230i xDrive 2017-2019 · 6 variants
328i GT xDrive 2014-2016 · 3 variants
330i GT xDrive 2017-2019 · 3 variants
335i GT xDrive 2014-2015 · 2 variants
340i GT xDrive 2017-2019 · 3 variants
428i 2014-2016 · 6 variants
428i Gran Coupe 2015-2016 · 2 variants
428i xDrive 2014-2016 · 6 variants
428i xDrive Gran Coupe 2015-2016 · 2 variants
430i 2017-2020 · 8 variants
430i Gran Coupe 2017-2020 · 4 variants
430i xDrive 2017-2020 · 8 variants
430i xDrive Gran Coupe 2017-2020 · 4 variants
435i 2014-2016 · 6 variants
435i Gran Coupe 2015-2016 · 2 variants
435i xDrive 2014-2016 · 5 variants
435i xDrive Gran Coupe 2015-2016 · 2 variants
440i 2017-2020 · 8 variants
440i Gran Coupe 2017-2020 · 4 variants
440i xDrive 2017-2020 · 8 variants
440i xDrive Gran Coupe 2017-2020 · 4 variants
M2 2016-2021 · 6 variants
M235i 2014-2016 · 5 variants
M235i xDrive 2015-2016 · 3 variants
M240i 2017-2019 · 6 variants
M240i xDrive 2017-2019 · 6 variants
M4 2015-2020 · 13 variants

View all 150 vehicle configurations

Full vehicle fitment list for Lock Switch / Cylinder w/ Key 51217310729
Year	Make	Model	Trim	Engine
2016	BMW	328i GT xDrive	Hatchback	2.0L l4 Turbo
2014	BMW	428i xDrive	Coupe	2.0L l4 Turbo
2016	BMW	428i xDrive	Coupe	2.0L l4 Turbo
2015	BMW	428i	Coupe	2.0L l4 Turbo
2014	BMW	428i	Coupe	2.0L l4 Turbo
2016	BMW	428i	Coupe	2.0L l4 Turbo
2019	BMW	340i GT xDrive	Hatchback	3.0L l6 Turbo
2017	BMW	340i GT xDrive	Hatchback	3.0L l6 Turbo
2018	BMW	340i GT xDrive	Hatchback	3.0L l6 Turbo
2018	BMW	330i GT xDrive	Hatchback	2.0L l4 Turbo
2017	BMW	330i GT xDrive	Hatchback	2.0L l4 Turbo
2019	BMW	330i GT xDrive	Hatchback	2.0L l4 Turbo
2014	BMW	335i GT xDrive	Hatchback	3.0L l6 Turbo
2015	BMW	335i GT xDrive	Hatchback	3.0L l6 Turbo
2014	BMW	328i GT xDrive	Hatchback	2.0L l4 Turbo
2015	BMW	328i GT xDrive	Hatchback	2.0L l4 Turbo
2019	BMW	M240i xDrive	Convertible	3.0L l6 Turbo
2018	BMW	M240i xDrive	Convertible	3.0L l6 Turbo
2015	BMW	428i xDrive	Coupe	2.0L l4 Turbo
2020	BMW	430i xDrive	Coupe	2.0L l4 Turbo
2019	BMW	430i xDrive	Coupe	2.0L l4 Turbo
2017	BMW	430i xDrive	Coupe	2.0L l4 Turbo
2018	BMW	430i xDrive	Coupe	2.0L l4 Turbo
2019	BMW	440i xDrive Gran Coupe	Hatchback	3.0L l6 Turbo
2017	BMW	430i	Coupe	2.0L l4 Turbo
2020	BMW	430i	Coupe	2.0L l4 Turbo
2018	BMW	430i	Coupe	2.0L l4 Turbo
2016	BMW	435i xDrive	Coupe	3.0L l6 Turbo
2015	BMW	435i xDrive	Coupe	3.0L l6 Turbo
2014	BMW	435i xDrive	Coupe	3.0L l6 Turbo
2014	BMW	435i	Coupe	3.0L l6 Turbo
2015	BMW	435i	Coupe	3.0L l6 Turbo
2016	BMW	435i	Coupe	3.0L l6 Turbo
2019	BMW	M240i	Convertible	3.0L l6 Turbo
2018	BMW	M240i	Convertible	3.0L l6 Turbo
2019	BMW	M240i	Coupe	3.0L l6 Turbo
2018	BMW	M240i	Coupe	3.0L l6 Turbo
2019	BMW	230i xDrive	Coupe	2.0L l4 Turbo
2018	BMW	230i xDrive	Coupe	2.0L l4 Turbo
2018	BMW	230i	Coupe	2.0L l4 Turbo
2019	BMW	230i	Coupe	2.0L l4 Turbo
2017	BMW	M240i xDrive	Coupe	3.0L l6 Turbo
2017	BMW	M240i	Coupe	3.0L l6 Turbo
2015	BMW	M235i xDrive	Coupe	3.0L l6 Turbo
2016	BMW	M235i xDrive	Coupe	3.0L l6 Turbo
2015	BMW	M235i	Coupe	3.0L l6 Turbo
2016	BMW	M235i	Coupe	3.0L l6 Turbo
2014	BMW	M235i	Coupe	3.0L l6 Turbo
2017	BMW	230i xDrive	Coupe	2.0L l4 Turbo
2017	BMW	230i	Coupe	2.0L l4 Turbo
2015	BMW	228i xDrive	Coupe	2.0L l4 Turbo
2016	BMW	228i xDrive	Coupe	2.0L l4 Turbo
2016	BMW	228i	Coupe	2.0L l4 Turbo
2014	BMW	228i	Coupe	2.0L l4 Turbo
2015	BMW	228i	Coupe	2.0L l4 Turbo
2018	BMW	M240i xDrive	Coupe	3.0L l6 Turbo
2019	BMW	M240i xDrive	Coupe	3.0L l6 Turbo
2017	BMW	230i	Convertible	2.0L l4 Turbo
2019	BMW	230i xDrive	Convertible	2.0L l4 Turbo
2018	BMW	230i xDrive	Convertible	2.0L l4 Turbo
2018	BMW	230i	Convertible	2.0L l4 Turbo
2019	BMW	230i	Convertible	2.0L l4 Turbo
2017	BMW	M240i xDrive	Convertible	3.0L l6 Turbo
2017	BMW	M240i	Convertible	3.0L l6 Turbo
2016	BMW	M235i xDrive	Convertible	3.0L l6 Turbo
2016	BMW	M235i	Convertible	3.0L l6 Turbo
2015	BMW	M235i	Convertible	3.0L l6 Turbo
2017	BMW	230i xDrive	Convertible	2.0L l4 Turbo
2015	BMW	228i xDrive	Convertible	2.0L l4 Turbo
2017	BMW	M2	Coupe	3.0L l6 Turbo
2016	BMW	228i xDrive	Convertible	2.0L l4 Turbo
2016	BMW	228i	Convertible	2.0L l4 Turbo
2015	BMW	228i	Convertible	2.0L l4 Turbo
2021	BMW	M2	Coupe	3.0L l6 Turbo
2020	BMW	M2	Coupe	3.0L l6 Turbo
2019	BMW	M2	Coupe	3.0L l6 Turbo
2016	BMW	M2	Coupe	3.0L l6 Turbo
2018	BMW	M2	Coupe	3.0L l6 Turbo
2020	BMW	440i xDrive Gran Coupe	Hatchback	3.0L l6 Turbo
2020	BMW	440i	Coupe	3.0L l6 Turbo
2016	BMW	428i xDrive Gran Coupe	Hatchback	2.0L l4 Turbo
2015	BMW	428i xDrive Gran Coupe	Hatchback	2.0L l4 Turbo
2016	BMW	428i Gran Coupe	Hatchback	2.0L l4 Turbo
2015	BMW	428i Gran Coupe	Hatchback	2.0L l4 Turbo
2020	BMW	M4	Convertible	3.0L l6 Turbo
2018	BMW	M4	Convertible	3.0L l6 Turbo
2017	BMW	M4	Convertible	3.0L l6 Turbo
2019	BMW	M4	Convertible	3.0L l6 Turbo
2016	BMW	M4	Convertible	3.0L l6 Turbo
2015	BMW	M4	Convertible	3.0L l6 Turbo
2017	BMW	440i	Coupe	3.0L l6 Turbo
2019	BMW	440i xDrive	Convertible	3.0L l6 Turbo
2018	BMW	440i xDrive	Convertible	3.0L l6 Turbo
2017	BMW	440i xDrive	Convertible	3.0L l6 Turbo
2019	BMW	440i	Convertible	3.0L l6 Turbo
2020	BMW	440i	Convertible	3.0L l6 Turbo
2018	BMW	440i	Convertible	3.0L l6 Turbo
2016	BMW	435i Gran Coupe	Hatchback	3.0L l6 Turbo
2015	BMW	435i Gran Coupe	Hatchback	3.0L l6 Turbo
2019	BMW	430i xDrive Gran Coupe	Hatchback	2.0L l4 Turbo
2018	BMW	440i xDrive Gran Coupe	Hatchback	3.0L l6 Turbo
2017	BMW	440i xDrive Gran Coupe	Hatchback	3.0L l6 Turbo
2018	BMW	440i Gran Coupe	Hatchback	3.0L l6 Turbo
2019	BMW	440i Gran Coupe	Hatchback	3.0L l6 Turbo
2017	BMW	440i Gran Coupe	Hatchback	3.0L l6 Turbo
2020	BMW	440i Gran Coupe	Hatchback	3.0L l6 Turbo
2020	BMW	430i xDrive Gran Coupe	Hatchback	2.0L l4 Turbo
2017	BMW	430i xDrive Gran Coupe	Hatchback	2.0L l4 Turbo
2015	BMW	435i xDrive Gran Coupe	Hatchback	3.0L l6 Turbo
2018	BMW	430i xDrive Gran Coupe	Hatchback	2.0L l4 Turbo
2017	BMW	430i Gran Coupe	Hatchback	2.0L l4 Turbo
2019	BMW	430i Gran Coupe	Hatchback	2.0L l4 Turbo
2020	BMW	430i Gran Coupe	Hatchback	2.0L l4 Turbo
2018	BMW	430i Gran Coupe	Hatchback	2.0L l4 Turbo
2016	BMW	435i xDrive Gran Coupe	Hatchback	3.0L l6 Turbo
2020	BMW	440i xDrive	Convertible	3.0L l6 Turbo
2015	BMW	428i	Convertible	2.0L l4 Turbo
2014	BMW	428i	Convertible	2.0L l4 Turbo
2017	BMW	440i	Convertible	3.0L l6 Turbo
2020	BMW	M4	Coupe	3.0L l6 Turbo
2019	BMW	M4	Coupe	3.0L l6 Turbo
2018	BMW	M4	Coupe	3.0L l6 Turbo
2017	BMW	M4	Coupe	3.0L l6 Turbo
2015	BMW	M4	Coupe	3.0L l6 Turbo
2016	BMW	M4	GTS Coupe	3.0L l6 Turbo
2016	BMW	M4	Coupe	3.0L l6 Turbo
2020	BMW	440i xDrive	Coupe	3.0L l6 Turbo
2019	BMW	440i xDrive	Coupe	3.0L l6 Turbo
2017	BMW	440i xDrive	Coupe	3.0L l6 Turbo
2018	BMW	440i xDrive	Coupe	3.0L l6 Turbo
2019	BMW	440i	Coupe	3.0L l6 Turbo
2018	BMW	440i	Coupe	3.0L l6 Turbo
2016	BMW	428i	Convertible	2.0L l4 Turbo
2014	BMW	428i xDrive	Convertible	2.0L l4 Turbo
2020	BMW	430i xDrive	Convertible	2.0L l4 Turbo
2016	BMW	428i xDrive	Convertible	2.0L l4 Turbo
2018	BMW	430i xDrive	Convertible	2.0L l4 Turbo
2017	BMW	430i xDrive	Convertible	2.0L l4 Turbo
2017	BMW	430i	Convertible	2.0L l4 Turbo
2018	BMW	430i	Convertible	2.0L l4 Turbo
2020	BMW	430i	Convertible	2.0L l4 Turbo
2019	BMW	430i	Convertible	2.0L l4 Turbo
2019	BMW	430i xDrive	Convertible	2.0L l4 Turbo
2015	BMW	428i xDrive	Convertible	2.0L l4 Turbo
2014	BMW	435i	Convertible	3.0L l6 Turbo
2019	BMW	430i	Coupe	2.0L l4 Turbo
2016	BMW	435i	Convertible	3.0L l6 Turbo
2015	BMW	435i xDrive	Convertible	3.0L l6 Turbo
2016	BMW	435i xDrive	Convertible	3.0L l6 Turbo
2015	BMW	435i	Convertible	3.0L l6 Turbo