SKU: 93830167215

034Motorsport 1-Piece, Pinned & Unpinned Crank Hub w/ Crank Bolt Capture Plate - BMW N55 & S55

Sale price$530.71 Regular price$589.68
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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

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Description

034Motorsport 1-Piece, Pinned & Unpinned Crank Hub w/ Crank Bolt Capture Plate - BMW N55 & S55The BMW N55 and S55 platforms deliver incredible performance, but their factory multi piece crank hubs are a known weak point capable of catastrophic timing drift or total failure. The 034Motorsport 1 Piece Pinned Unpinned Crank Hub with Crank Bolt Capture Plate is engineered as a complete, motorsport grade solution that eliminates slip, locks in long term reliability, and protects your engine under the highest levels of power and abuse. Unmatched

The BMW N55 and S55 platforms deliver incredible performance, but their factory multi-piece crank hubs are a known weak point capable of catastrophic timing drift or total failure. The 034Motorsport 1-Piece Pinned/Unpinned Crank Hub with Crank Bolt Capture Plate is engineered as a complete, motorsport-grade solution that eliminates slip, locks in long-term reliability, and protects your engine under the highest levels of power and abuse.

Unmatched Engineering. Zero Compromise:

A Permanent Fix for the Factory Crank Hub Problem

The factory crank hub used in BMW’s N55 and S55 engines is a well-known weak point, particularly as power levels increase. The OEM design uses three individual sprocketed pieces that drive the timing chains off the crankshaft. Importantly, none of these sprockets are mechanically linked together nor to the crankshaft . They rely only on friction washers and the clamping force of the crank bolt to stay aligned.

Under higher horsepower, rapid throttle transitions, hard launches, or even completely stock operation, the friction surfaces can slip. When this happens, the timing components rotate out of alignment, causing the engine to fall out of mechanical timing. This can quickly lead to bent valves, piston-to-valve contact, or catastrophic engine failure.

A True Mechanical Solution Instead of More Friction:

The 034Motorsport 1-Piece Pinned Crank Hub replaces the entire multi-piece factory stack with a single CNC-machined billet EN36 steel unit. By combining all timing sprockets into one rigid body, every driven timing component remains physically linked, eliminating the possibility of internal hub slip.

You can configure the hub in the way that best suits your build:

Unpinned Installation

The 034 design can be installed in an unpinned configuration using the factory crankshaft with no drilling required. This setup works seamlessly with the included Crank Bolt Capture Plate, which locks the crank bolt in position and prevents any chance of bolt movement.

Pinned Installation (Recommended for Heavy Abuse/High Power)

For those who want maximum mechanical security, the hub can also be installed in a 4-pin configuration, physically interlocking it with the crankshaft. One of the key advantages of the 034Motorsport Crank Hub is that it eliminates the need for a separate hub version. You can choose pinned or unpinned using the same part.

To ensure safe and accurate drilling, the kit includes a carbide drill bit and a dedicated drill guide and alignment jig. Most competing kits only provide a high-strength steel drill bit, which wears quickly when cutting into the crankshaft.

Crank Bolt Capture Plate: The Second Layer of Defense

Machined from 6061-T6 billet aluminum and anodized for long-lasting protection, the Capture Plate surrounds and locks the OE crank bolt in place, preventing any possibility of bolt walk-out. Paired with the 1-Piece Hub, this configuration eliminates both crank bolt and crank hub slip, protecting against the most common N55/S55 timing failures.

Elongated mounting slots allow the Capture Plate to be used with both OE and 034Motorsport crank hubs, ensuring a precise and secure installation.

Built to Protect Your Engine, No Matter the Power Level:

From aggressively tuned street builds to fully track-prepped cars, the 034Motorsport 1-Piece Pinned Crank Hub and Capture Plate system is engineered to be the definitive solution for securing the crank hub. With uncompromising materials, precision engineering, and a complete installation package, this upgrade delivers the reliability and confidence your BMW deserves.

Upgrade once. Protect forever.

1-Piece Crank Hub Features:

  • 1-Piece CNC-Machined Hub, Installable In 4-Pin Or Unpinned Configuration
  • Prevents Crank Hub Slip And Failure On High-Power Engines
  • Billet EN36 Steel, Heat-Treated With 0.75 Mm Case Hardening
  • High-Strength Design Built For Extreme Power And Abuse
  • Optional Precision Dowels Mechanically Lock Hub To Crank (Crank Drilling Required)
  • Complete Installation Kit: Jig, Guide, Locating Bolt, And Carbide Drill Bit
  • Includes New OE Crank Bolt

Crank Bolt Capture Plate Features:

  • Machined From 6061-T6 Billet Aluminum
  • Anodized For Durability And Long-Lasting Finish
  • Surrounds And Locks OE Crank Bolt, Preventing Loosening
  • Fits 034Motorsport Or OE Crank Hub With Elongated Slots For Secure Install
  • Prevents 3-Piece Crank Hub Slip On S55 And N55 Engines
  • Installs With Engine In-Situ By Dropping Radiator For Access

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 93830167215

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james allen
New York, US
★★★★★ 3
Great Idea but they will let you down eventually
I have used these for years during the winter. The price has nearly tripled but the longevity is the same. I normally purchase three with one being a spare. Within a few weeks they start going. I switch batteries etc but normally that does not help. Its a great idea and my dogs love them but they dont hold up to 10 minutes of play each nite. We do not throw them either, I roll them or kick them as my dogs are older
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 12, 2025
M
Verified Purchase
Mitchell LaForest
Birmingham, US
★★★★★ 5
Great product
Very good. Hours of fun with the dog.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 3, 2026
K
Verified Purchase
Krispy
Chelsea, US
★★★★★ 2
Expensive ball- stops working in a week
Came without any protection inside for batteries. Stopped working after a week. Expensive ball to break in a week
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Reviewed in the United States on December 7, 2025
L
Verified Purchase
Lauren Michelsen
Fort Morgan, US
★★★★★ 5
Great ball for dogs
Murphy’s favorite ball!!!
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Reviewed in the United States on February 18, 2026
D
Verified Purchase
DDT
Cuba, US
★★★★★ 5
Great fun for our dogs!
Style: Original
My dogs can’t get enough of this very noisy ball. We have one outside and one in their playroom. It is very noisy. It is very hard. So, I’d say a room with fine furniture is not the place for it. Ours bang it around pretty good. Our boxer did split one, biting it. But, she’s a serious chewer! Our other dog carries it around sometimes but hasn’t been able to damage it yet. So, I’d say for most chewers it’s going to last a long time. It’s a great toy but in most households I’d say basement or outside. Again, it’s hard and did ding a few baseboards.
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Reviewed in the United States on March 27, 2026

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