2009-2016 BMW Z4 Roll Bar Retainer Right 51439128420
OEM Part #: 51-43-9-128-420 (51439128420)
Actual photo
The exact part you’ll receive — not a stock photo.
$23.49
Side: Right
Used
Donor2013 BMW Z4 · 2.0L
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Genuine OEM Used
SKU: 712074
Donor Vehicle: 2013 BMW Z4 · 2.0L
2 photos
$23.49
30-Day Returns
Genuine OEM Used
SKU: 581992
Donor Vehicle: 2016 BMW Z4 · 2.0L · 31k miles
2 photos
$23.80
30-Day Returns
- Genuine OEM — real photos
- 30-day returns on eligible parts
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This used OEM BMW Roll Bar Retainer (part number 9128420, also replaces 51439128420) is the genuine right-side component removed from a donor vehicle. It secures the roll bar in place on the passenger side. A cracked or broken retainer can cause the roll bar to rattle or sit loose, reducing structural integrity in the event of a rollover. This part is a direct replacement for the factory-installed retainer on the right side of your BMW Z4.
Specifications
| Fits Vehicle Model | Z4 |
| Fits Vehicle Make | BMW |
| OEM Part No | 51-43-9-128-420 (51439128420) |
| Compatible OEM Part No | 51-43-9-128-420 |
| Side | Right |
| Category | Other |
Compatible Vehicles
Fits 16 vehicle configurations across 1 make, 2009-2016.
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 16 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2014 | BMW | Z4 | Convertible | 2.0L l4 Turbo | |
| 2012 | BMW | Z4 | Convertible | 2.0L l4 Turbo | |
| 2013 | BMW | Z4 | Convertible | 2.0L l4 Turbo | |
| 2016 | BMW | Z4 | Convertible | 2.0L l4 Turbo | |
| 2015 | BMW | Z4 | Convertible | 2.0L l4 Turbo | |
| 2010 | BMW | Z4 | Convertible | 3.0L l6 | |
| 2011 | BMW | Z4 | Convertible | 3.0L l6 | |
| 2009 | BMW | Z4 | Convertible | 3.0L l6 | |
| 2015 | BMW | Z4 | Convertible | 3.0L l6 Turbo | |
| 2014 | BMW | Z4 | Convertible | 3.0L l6 Turbo | |
| 2009 | BMW | Z4 | Convertible | 3.0L l6 Turbo | |
| 2013 | BMW | Z4 | Convertible | 3.0L l6 Turbo | |
| 2011 | BMW | Z4 | Convertible | 3.0L l6 Turbo | |
| 2012 | BMW | Z4 | Convertible | 3.0L l6 Turbo | |
| 2016 | BMW | Z4 | Convertible | 3.0L l6 Turbo | |
| 2010 | BMW | Z4 | Convertible | 3.0L l6 Turbo |