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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Dianna H
Waukegan, US
★★★★★ 5
Not Scented, but Dog Approved
Size: 2-pack, Style: Duo
They don't smell like peanut butter or bacon. But our dogs still love them.
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Reviewed in the United States on August 31, 2025
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waragon
New York, US
★★★★★ 4
If they squeaked, they would be the perfect ball!
Size: 2-pack, Style: Duo
I bought our 15 month old Coton several Chuck-It toys on an Amazon deal. He is incredibly playful, mischievous, and ball/toy obsessed, especially for anything that makes noise. He can also be very destructive so I love how durable most of their products are - they’re among our longest lasting toys and worth every penny. We have yet to take them to the dog park, but they’re a perfect size for sharing in plat time. And they are keeping him busy at home - that’s a good thing. The scent is subtle but strong enough for him I guess because he loves gnawing on them. If they had squeakers, they would be absolutely perfect. Hopefully Chuck-It will see an opportunity for that down the road!
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Reviewed in the United States on May 28, 2026
R
Verified Purchase
Reepeat
Chelsea, US
★★★★★ 5
Most durable fetch balls I know of.
Size: 2-pack, Style: Duo
These balls are the biggest balls of them all. Well, not the biggest, but the best. Every other ball she would chew up in short order and I'd be throwing her a floppy piece of rubber. She just wants to fetch, but if it's not bouncing, she can't catch it on the bounce. Got these balls in July and no damage to them. I just ordered another pair, but only because the other two somehow got stuck up in trees. We have some very old and very large oak trees so not so easy to retrieve. Hope they somehow drop someday. But in the meantime, Lassie will be happy with her new ones. Very highly recommended!
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Reviewed in the United States on October 28, 2025
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Blonde Aggie
Los Angeles, US
★★★★★ 5
Works great for scent work! Bounce is great for air retrieve!
Size: 2-pack, Style: Duo, Size: 2-pack, Style: Duo
My dog doesn’t know he loves them yet but I do! They are a little softer so when we do air retrieve, I don’t have to worry as much about his teeth! I’m hoping he will learn to find them by smell vs sight. We often play in the evenings and he tends to loose his ball. Love chuck it! Right now, we have about 10 chuck it balls! The tennis balls don’t work for air retrieve! Chuckit does!!! Love the thrower too! Saves my arm!!!!
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Reviewed in the United States on August 6, 2025
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None of your business
Bozeman, US
★★★★★ 3
I guess the smell is offputting
Size: 2-pack, Style: Duo
My dog loves chocolate stuff. But for some reason, wasn’t a huge fan of these balls. She played with them a little bit, but they’re not her favorite.
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Reviewed in the United States on December 30, 2025

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