If you own a BMW with an N55 or S55 engine, you probably know that those factory multi-piece crank hubs can be a real headache. They can slip, leading to timing issues that could spell disaster for your engine. That’s where the 034Motorsport 1-Piece Pinned/Unpinned Crank Hub comes into play. This isn’t just some run-of-the-mill upgrade; it’s built for serious performance and reliability, especially if you’re pushing your engine hard.
This 1-piece hub is CNC-machined and can be set up in either a 4-pin or unpinned configuration, depending on your needs. What’s cool about this design is that it completely eliminates the chance of crank hub slip, which is a common issue when you’re cranking up the power. Made from heat-treated EN36 steel with 0.75 mm case hardening, this hub is designed to take a beating while keeping your engine safe.
Worried about installation? Don’t be. The kit comes with everything you need: a jig, guide, locating bolt, and even a carbide drill bit. Plus, it includes a new OE crank bolt, so you won’t have to hunt for that at the last minute. If you decide to go for the optional precision dowels, just keep in mind you’ll need to drill the crank for those, but it’s worth it for the added security.
Now, let’s talk about the crank bolt capture plate. This piece is machined from 6061-T6 billet aluminum and anodized for durability. It surrounds the OE crank bolt, locking it in place to prevent loosening. This is especially crucial for those of you running high-power setups, as it helps avoid the dreaded slip that can occur with the 3-piece crank hubs on S55 and N55 engines.
Here’s the deal: this setup fits a wide range of BMW models, including:
So, if you’re ready to ditch the factory crank hub and want something that can handle serious power without breaking a sweat, this 034Motorsport crank hub is a solid choice. It’s all about keeping your engine safe while you enjoy the ride.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
2006-2019 BMW 335i |
335i | 2006-2019 |
|
2014-2017 BMW 435i |
435i | 2014-2017 |
|
2009-2017 BMW 535i |
535i | 2009-2017 |
|
2012-2018 BMW 640i |
640i | 2012-2018 |
|
2012-2015 BMW 740Li |
740Li | 2012-2015 |
|
2012-2015 BMW 740i |
740i | 2012-2015 |
|
2013-2015 BMW ActiveHybrid 3 |
ActiveHybrid 3 | 2013-2015 |
|
2012-2016 BMW ActiveHybrid 5 |
ActiveHybrid 5 | 2012-2016 |
|
2015-2018 BMW M3 |
M3 | 2015-2018 |
|
2015-2020 BMW M4 |
M4 | 2015-2020 |
|
2012-2015 BMW X1 |
X1 | 2012-2015 |
|
2010-2017 BMW X3 |
X3 | 2010-2017 |
|
2015-2016 BMW X4 |
X4 | 2015-2016 |
|
2011-2018 BMW X5 |
X5 | 2011-2018 |
|
2011-2018 BMW X6 |
X6 | 2011-2018 |

034 Motorsport was founded in 2005 for enthusiasts by enthusiasts with a passion for bringing motorsport-quality performance upgrades and tuning to Audi and Volkswagen vehicles. Since its inception, the company has grown to meet the expanding needs of petrolheads with innovation, quality, and performance in mind. 034 Motorsport is dedicated to providing customers with only the finest performance products, tuning, and service for their Audi or Volkswagen.
Dedicated to the Car Scene034Motorsport is owned and operated by car enthusiasts just like you! This means that you can count on them for expert advice and products that deliver each and every time. When they aren’t at work, you can find the 034 Motorsport folks at local car meets, Audi Club Track Days, or simply at home working on their own rides.
Being gearheads themselves, the 034 Motorsport staff understands the importance of a strong automotive community and giving back to the customers they owe their success to. 034Motorsport is a proud sponsor of Audi Club North America's Golden Gate Chapter, in addition to several other popular automotive forums, including Audizine, Fourtitude, VWvortex, and QuattroWorld. The brand also supports NorCal Audi Club, and frequently hosts events for its members.
Involvement in Competition Racing034Motorsport stays true to its roots (and name) by actively participating in motorsport events, like time attacks, endurance racing, and hill climbs. These events allow the company to simultaneously showcase its products and racing expertise, while putting them to the ultimate test. A number of 034 Motorsport’s most iconic projects, including the Time Attack A4, GTI-RS, and 80tq raised the bar for on-track performance, while also accelerating production and testing processes.
Extensive Quality Product Lineup034 Motorsport is well-known for producing some of the finest race-proven performance upgrades for Audi and Volkswagen enthusiasts. The 034 Motorsport performance facility is located in Fremont, California and home to its engineering, manufacturing, and tuning departments. The company prides itself on in-house manufacturing, where it designs, fabricates, calibrates, and tests all products under one roof with complete control. 034 Motorsport carries a wide range of products that includes suspension parts, motor mounts, intakes, silicone hoses, and numerous underhood goodies.
Find 034 Motorsport at Vivid RacingYou can find an extensive lineup of quality 034 Motorsport parts right here at Vivid Racing. We carry everything from 034 Motorsport blow-off valves, cold air intakes, intercoolers, differentials, and ventilation systems to wheel spacers, springs, turbos, mid-pipes, and steering components. Whatever you may possibly need, chances are we carry it! If you cannot find a particular item above or have any questions, please call our sales team at (480) 966-3040.
It is the intention of 034Motorsport to sell only quality products. We offer a 1-year warranty against defects in workmanship or materials, not extending to normal tear and wear or mis-use. You must provide us with a proof of purchase, defect or the result of wear or mis-use. Some products have less than 1-year warranty. Please inquire before ordering.
034Motorsport will only replace or repair warranty items. No refunds will be given. 034Motorsport or the product manufacturer will inspect or test all products prior to a warranty claim adjustment. This process may take up to 6 weeks. You must obtain an RMA number from either Customer Service or Technical Support prior to any return. All products we offer are warranted to be free from defects prior to installation. Any modification or improper use voids this warranty. This warranty does not cover installation. 034Motorsport shall be the final arbitrator in interpreting the extent and remedy of warranty.
034Motorsport warranties are not transferrable, and available to the original purchaser only, however if you do buy a 034Motorsport part second hand and have a problem with it, do contact us as we can typically arrive at a reasonable, fair solution.