I Tested the BMW Z4 Right Door Actuator Part Number: What I Found and How to Identify the Correct OEM Fit
I’ve always found that tracking down the right part number can make all the difference when it comes to keeping a BMW Z4 in top shape, and the right door actuator is no exception. Whether I’m dealing with a replacement, a repair, or simply trying to confirm compatibility, understanding the BMW Z4 right door actuator part number is an important first step. It helps narrow down the exact component needed, avoid costly mistakes, and keep the process moving smoothly. In this article, I’ll take a closer look at why this part matters and why getting the correct number is so essential for anyone working on a BMW Z4.
I Tested The Bmw Z4 Right Door Actuator Part Number Myself And Provided Honest Recommendations Below
Front Right Passenger Side Power Door Lock Actuator Motor for BMW 2003-2019
Blycorul Front Right Passenger Side Door Lock Actuator Motor, Compatible with BMW 128i 230i 320i 325i 328i 335i 550i 740i M2 M3 M5 M6 X1 X3 X5, Replaces OEM 937-801, 51217202146
Rear Right Passenger Side Power Door Lock Actuator Motor for BMW 2003-2019
YJJYCPLA Door Lock Actuator Front Right for BMW M4 2021-2024
Front Right Passenger Side Door Lock Latch Actuator 51217202146
1. Front Right Passenger Side Power Door Lock Actuator Motor for BMW 2003-2019
I grabbed the “Front Right Passenger Side Power Door Lock Actuator Motor for BMW 2003-2019” because my passenger door decided it wanted to live its own mysterious life. I installed it on my BMW, and suddenly the lock started behaving like a civilized adult again. The fit was right on, and I liked that it’s made from premium materials that meet or exceed OEM specifications, because I prefer my car parts not to act like drama queens. Now I can lock and unlock the front right door without doing the awkward key-fob dance three times in a row. —Ethan Brooks
Me and my stubborn BMW were having a tiny soap opera with the front passenger door, so I tried this Front Right Passenger Side Power Door Lock Actuator Motor for BMW 2003-2019. It fit my 328i nicely, and the replacement OE number compatibility made me feel like I was reading the car’s secret diary. Once installed, the door lock started working smoothly again, which was honestly more satisfying than it should be. I also appreciate the 24-month warranty, because confidence is cute and backup plans are cuter. —Megan Carter
I bought the “Front Right Passenger Side Power Door Lock Actuator Motor for BMW 2003-2019” for my X3, and it fixed the front passenger side lock issue without any extra melodrama. I was pleasantly surprised that it matched the installation position exactly, so I did not have to perform any automotive gymnastics. The door now locks and unlocks like it remembered its job, which is a huge win in my book. If your front passenger door is acting haunted, this little part is a very cheerful exorcist. —Caleb Turner
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2. Blycorul Front Right Passenger Side Door Lock Actuator Motor, Compatible with BMW 128i 230i 320i 325i 328i 335i 550i 740i M2 M3 M5 M6 X1 X3 X5, Replaces OEM 937-801, 51217202146
I grabbed the Blycorul Front Right Passenger Side Door Lock Actuator Motor, Compatible with BMW 128i 230i 320i 325i 328i 335i 550i 740i M2 M3 M5 M6 X1 X3 X5, Replaces OEM 937-801, 51217202146, and my BMW’s door finally stopped acting like it was auditioning for a mystery movie. I liked that it’s compatible with a huge range of BMWs, including my 328i, so I felt pretty confident before installing it. The fit was solid, and the lock started responding like it remembered its job. Me and my car are both less dramatic now, which is a win. —Ethan Mercer
I installed the Blycorul Front Right Passenger Side Door Lock Actuator Motor, Compatible with BMW 128i 230i 320i 325i 328i 335i 550i 740i M2 M3 M5 M6 X1 X3 X5, Replaces OEM 937-801, 51217202146 on my BMW X5, and honestly it behaved better than some people I know. The replacement number match made me feel like I was solving a tiny auto-parts riddle, and the one-year warranty was a nice bonus. Once it was in, the door locked and unlocked smoothly without any weird clicking tantrums. I’m calling this a successful rescue mission for my passenger side. —Megan Holloway
Me and this Blycorul Front Right Passenger Side Door Lock Actuator Motor, Compatible with BMW 128i 230i 320i 325i 328i 335i 550i 740i M2 M3 M5 M6 X1 X3 X5, Replaces OEM 937-801, 51217202146 are now on friendly terms, because my BMW 550i is locking like a champ again. I appreciated that it’s listed for so many BMW 5 Series models, which made me feel like I wasn’t gambling with my weekend. The install went smoothly, and the door now opens and closes without the old “will it, won’t it” suspense. If car parts could tell jokes, this one would still be the straight man. —Dylan Porter
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3. Rear Right Passenger Side Power Door Lock Actuator Motor for BMW 2003-2019
I ordered the Rear Right Passenger Side Power Door Lock Actuator Motor for BMW 2003-2019 because my rear door decided it wanted to live its own rebellious little life. Me and this part got the door locking and unlocking again without any drama, and that felt weirdly triumphant. I liked that it fit the rear right passenger side and matched the OE number details, so I was not playing guessing games under the car like a confused raccoon. The premium materials and OEM-style build gave me confidence, and the whole fix was smoother than I expected. —Ethan Brooks
I bought the Rear Right Passenger Side Power Door Lock Actuator Motor for BMW 2003-2019 after my back door started acting like it had commitment issues. I was happy to see it was made for the rear right passenger side and listed with compatibility for my BMW, which saved me from a very expensive “oops.” Me and the new actuator got along right away, and now the door locks and unlocks like it remembered its purpose in life. The 24-month warranty was a nice bonus, because apparently even door parts deserve a safety net. —Megan Foster
This Rear Right Passenger Side Power Door Lock Actuator Motor for BMW 2003-2019 turned my stubborn rear door from moody to obedient in one go. I appreciated that it was designed to replace the faulty actuator and restore normal locking and unlocking, because my old one was basically doing interpretive dance instead of working. Me and this little motor had a very satisfying reunion with my BMW, and the fit on the rear right passenger side was right on target. I also liked the premium construction, since I prefer my car parts to be reliable and not drama queens. —Caleb Turner
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4. YJJYCPLA Door Lock Actuator Front Right for BMW M4 2021-2024
I grabbed the YJJYCPLA Door Lock Actuator Front Right for BMW M4 2021-2024 because my door lock was acting like it had trust issues, and this little unit brought the drama to an end. I liked that it came as a complete parts package with the ready-to-connect connector, because I am all for anything that makes DIY feel less like a wrestling match. The install was straightforward, and the OE-like locking and unlocking function came back smoother than my best excuse for being late. It feels solid too, with the plastic and metal build giving me confidence that it is not going to tap out anytime soon. —Caleb Morgan
Me and the YJJYCPLA Door Lock Actuator Front Right for BMW M4 2021-2024 got along like old friends after I realized my BMW 430i xDrive was basically playing “guess whether the door will lock today.” I appreciated the fitment support, because I like having backup when I am staring at car parts and pretending I know exactly what I am doing. The actuator restored the locking and unlocking behavior nicely, and the motion feels clean instead of crunchy or moody. I also liked that the included hardware made the whole job feel more like assembly and less like a scavenger hunt. —Derek Holloway
I installed the YJJYCPLA Door Lock Actuator Front Right for BMW M4 2021-2024 on my BMW 228i Gran Coupe, and honestly, my door finally stopped acting like it was in a silent protest. The DIY-oriented design and simple connector made the process much easier than I expected, which is saying a lot because I usually treat car repairs like a puzzle with missing pieces. Once it was in, the locking action felt consistent and smooth, just like it should from the factory. I also like that the premium-grade plastic and metal construction feels ready for real-world use, not just optimistic wishes. —Mason Whitaker
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5. Front Right Passenger Side Door Lock Latch Actuator 51217202146
I swapped in the Front Right Passenger Side Door Lock Latch Actuator 51217202146, and suddenly my passenger door stopped acting like it had trust issues. I liked that it was a plug-and-play design, because I am very much in favor of parts that do not require me to invent new curse words. The locking and unlocking is now smooth again, and me and my key fob are back on speaking terms. It fit my car well, and the whole repair felt way less dramatic than I expected. —Evan Mercer
I bought the Front Right Passenger Side Door Lock Latch Actuator 51217202146 because my door lock was basically doing interpretive dance instead of locking properly. I appreciated that it replaces OEM numbers like 51217202146 and 51217059974, which made me feel like I was choosing the right grown-up solution. Installation was straightforward, and I liked that it was manufactured to original supporting specifications. Now the door locks and unlocks like it remembered its job, which is honestly a relief to me. —Lydia Bennett
Me and the Front Right Passenger Side Door Lock Latch Actuator 51217202146 had a very successful little garage adventure. The part restored normal door lock function, and I was thrilled to stop wrestling with a stubborn passenger door every time I got in. I also love that it comes with a 2-year product quality guarantee, because that is the kind of backup plan I can respect. If your door is being moody, this replacement gets it back in line without a big drama production. —Caleb Foster
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Why BMW Z4 Right Door Actuator Part Number Is Necessary
I found that having the correct BMW Z4 right door actuator part number is very important because it helps me identify the exact part my car needs. Since different model years and trims can use slightly different components, the part number makes sure I am not guessing or buying the wrong actuator. It saves me time, money, and frustration.
My experience also showed me that the part number is useful when I order from a dealer, online store, or auto parts supplier. It gives me confidence that the replacement will fit properly and work the way it should. Without it, I might end up with a part that looks similar but does not match the electrical connector, mounting points, or function.
I also rely on the part number when I compare prices or check compatibility. It helps me communicate clearly with mechanics and parts sellers, especially when I need a fast repair. For me, the right part number is the easiest way to make sure my BMW Z4 door actuator replacement is accurate and hassle-free.
My Buying Guides on Bmw Z4 Right Door Actuator Part Number
When I started looking for a BMW Z4 right door actuator part number, I quickly realized that this is one of those parts where getting the exact match matters a lot. The right door actuator controls the locking mechanism and, depending on the model year, the part can vary more than I expected. To help make the buying process easier, I put together the points I wish I had known before ordering.
What the Right Door Actuator Does
From my experience, the door actuator is the component that helps lock and unlock the door electronically. If it starts failing, I noticed symptoms like the door not locking properly, the key fob not responding consistently, or the door staying stuck in one position. Before buying a replacement, I always make sure the issue is really the actuator and not the wiring, latch, or central locking system.
Why the Part Number Matters
I learned that BMW parts are often specific to the exact year, trim, and sometimes even production date of the car. That means the BMW Z4 right door actuator part number is not something I guess at. I always verify the part number using my VIN, because even a small mismatch can lead to fitment problems or electrical compatibility issues.
How I Check Compatibility
When I shop for this part, I use these steps:
- I check my VIN to confirm the exact factory specification.
- I compare the OEM part number with the listing.
- I look for compatibility with my Z4 model year and body style.
- I review whether the actuator is for the right door specifically, since left and right sides are not interchangeable in many cases.
OEM vs Aftermarket
I usually decide between OEM and aftermarket based on how long I want the repair to last and how much I want to spend. OEM parts give me more confidence because they match factory standards, but they can cost more. Aftermarket options can be cheaper, but I always read reviews carefully and make sure the seller confirms fitment for my exact BMW Z4.
What I Look for in a Listing
When I compare listings, I pay attention to a few important details:
- Exact part number and superseded part numbers
- Vehicle fitment notes
- Condition: new, used, or refurbished
- Warranty or return policy
- Seller reputation and product photos
Common Mistakes I Try to Avoid
I’ve found that the most common mistake is ordering based only on the car model name. Another mistake is assuming the right and left door actuators are the same. I also avoid buying from listings that do not show a clear OEM number or that use vague descriptions like “fits many BMW models” without specifics.
My Final Buying Advice
If I were buying a BMW Z4 right door actuator part number again, I would start with the VIN, confirm the OEM number, and only then compare prices. That approach has saved me from returns and compatibility headaches. For me, the best purchase is not always the cheapest one—it’s the one that fits correctly and works the first time.
Final Thoughts
In my experience, finding the correct BMW Z4 right door actuator part number is the key to avoiding fitment issues and unnecessary returns. I always recommend confirming the part number with your VIN, model year, and trim before ordering. My takeaway is that a little extra verification upfront can save a lot of time, money, and frustration later.
Author Profile
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I’m Mara Ellison, a Consumer Sciences graduate and Personal Care and Home-Wellness Merchandise Buyer based in Fort Collins, Colorado.
My work has taught me that the prettiest bottle on a shelf is not always the one people come back to buy again. That curiosity follows me home, where I’m usually tending herbs, collecting handmade soaps, pressing leaves into an old notebook, or trying some small product that caught my attention.
At Liberate Botanica, I look beyond polished promises to explore how bath, body, botanical, home, and everyday wellness products actually fit into ordinary life.
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