SKU: 72301299601

MMX Crank hub & capture plate BMW F8X S55 N55

$331.20 $368.00
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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20

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Description

MMX Crank hub & capture plate BMW F8X S55 N55The Ultimate Fix for S55 & N55 Crank Hub Failure Proven Reliability The factory three piece crank hub used on the S55 & N55 engines (F80 M3, F82 F83 M4, F87 M2 etc.) is a well known weak point. Under load, the OE hubs friction plates can slip, causing the timing to jump. When this happens, piston to valve contact is highly likely often resulting in catastrophic engine damage and a repair bill into the thousands. The MMX Performance One Piece Billet

The Ultimate Fix for S55 & N55 Crank Hub Failure – Proven Reliability

The factory three-piece crank hub used on the S55 & N55 engines (F80 M3, F82/F83 M4, F87 M2 etc.) is a well-known weak point. Under load, the OE hub’s friction plates can slip, causing the timing to jump. When this happens, piston-to-valve contact is highly likely — often resulting in catastrophic engine damage and a repair bill into the thousands.

The MMX Performance One-Piece Billet Crank Hub eliminates this risk completely. Whether your engine is stock or running increased power and torque, this is the most complete and robust crank hub solution available.

Why Upgrade?

OE Hub Failure — A Known S55/N55 Weakness

The standard BMW crank hub uses a multi-piece friction design. Under higher torque (even from factory), the friction plates can slip, resulting in:

  • Timing jump

  • Potential piston-to-valve contact

  • Total engine failure

BMW’s only solution? Replace the entire assembly — and often deny warranty on modified vehicles.

One-Piece Billet Hub = No More Slip

MMX’s redesigned hub is a single, solid billet EN36 steel component, heat-treated and case-hardened. There are no friction plates to slip, meaning the hub and timing gear remain permanently locked together.

Key Features

  • One-piece billet EN36 steel hub – case hardened (0.75mm surface)

  • Eliminates slip from friction-plate design on OE hub

  • Straightforward install (no drilling for dowels required on unpinned version)

  • Optional Capture Plate prevents crank bolt loosening

  • Engine-safe solution for stock & tuned cars

  • Suitable for road, track and high-power builds

Capture Plate 

The Capture Plate is bolted over the crank bolt head and physically prevents bolt loosening from vibration or harmonics.

Benefits:

  • Locks the crank bolt in place – zero chance of it backing out

  • Ideal for high-RPM track or drift environments

  • Adds a second layer of security over the one-piece hub

Pinned vs Unpinned Version — Which Should You Choose?

MMX offers two versions of the crank hub:

Version Recommended For Notes
Unpinned Hub (this product) Stock to Stage 1 tuned cars No drilling into the crank needed.
Pinned Hub (upgrade option) High-power builds / drag / track cars Requires crankshaft drilling for 4 dowel pins.

For most customers, the unpinned version is more than sufficient.

Installation & Torque Specs

  • Follows BMW OE procedure

  • No special tools required (for unpinned hub)

  • Crank bolt torque: 100 Nm + 270° rotation (S55/N55)

Professional installation recommended.

Compatibility

BMW S55 & N55 Engines:

  • F87 M2 / M2 Competition (N55/S55)

  • F80 M3

  • F82 / F83 M4

  • Also fits other BMW models using N55 engines

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: 72301299601

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4.9 ★★★★★
Based on 9 reviews
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T
Verified Purchase
Tim
Massapequa, US
★★★★★ 5
This is definitely not your average pillow protector!
You have to see and feel this pillow protector to understand just how good it is (photos and videos just don't do it justice). It looks and feels like some sort of fancy premium luxury pillow case, but it's a zippered pillow protector! I always thought pillow protectors were just a simple white cotton zippered pillow case in order to add another layer in addition to the pillow case, but this pillow protector from COOP Home Goods completely blows me away. I just kept going, "Omg, are you kidding me? This is just a pillow protector?! Wow!" The only negative is, the zippered opening is too small. When I tried to put my brand new COOP pillow into it (I have the pillow that has approximately 15,000 reviews), it was very difficult. This was before I removed any of the filling for customization though, which I still needed to do. I finally got around to doing that and I probably removed about 1/3rd of the filling because I'm mostly a stomach sleeper, so I'm sure the pillow protector will be much easier to put on the next time I remove it, but I'm not going to remove it until I have to wash it because I don't want to be stuck trying to put it back on again! That's how annoying it was to put on. I'm keeping it though because I'm hoping it will mean I'll never have to wash the pillowcase or especially the pillow! That'd be awesome. I recently upgraded from a MyPillow Premium and I hated washing it (it was always a mini project, so I am hoping to be completely done with that). I contacted COOP about the small opening and they said, "We do have plans to change the zipper placement on our pillow protectors, however, production has not started and we do not have a firm date to provide you with at this time." They also reminded me that the pillow can be "bent and manipulated" (their words) into the pillow protector. See next paragraph though to understand why I didn't want to handle the pillow too much, otherwise I would've just done that instinctively. There is one more negative aspect that's worth mentioning, but it's due to a personal issue (there's nothing COOP can do about it). I have rough dry skin on my hands, and the material (40% Bamboo-derived Viscose Rayon, 60% Polyester) is rather 'catchy' on my hands. If you have rough dry skin and if you've ever tried to handle something made out of silk, you know what I'm talking about; you can't enjoy the silky smooth texture. This isn't anywhere near as bad as silk, but it's just bad enough that it's worth mentioning. I think it's due to the Bamboo-derived Viscose Rayon. The pillows are the same way for me due to the pillow case. That's probably what made the pillow case so difficult to put on because I was trying to be very careful not to get my skin flakes all over everything from just "manhandling" it, which is what I should've done and then just vacuumed it clean. heh I won't use lotion though because I don't like the idea of getting lotion on everything I touch every day, and it makes my hands sweat much easier - especially in the summer. So, I prefer to just deal with clean but rough dry hands. I guess another negative thing could be that it's not possible to just buy 1 pillow protector. These are 2-packs. I only needed 1 pillow protector and I only wanted 1. I would've gladly paid $15 for just 1. So anyway, beyond that, these pillow protectors truly have that "wow!" factor. They're exactly as advertised and more (because some things are only possible to know about by experiencing them for yourself).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2018
I
Verified Purchase
Ihave6kids
Carnegie, US
★★★★★ 5
Best pillow protector ive ever used!
Size: Body
I was afraid this pillow protector would inflate with air like every other pillow protector I've ever used (from super cheap to super not cheap). Man was I wrong! You can't even tell it's on the pillow and it doesn't take away from the squishy goodness of the pillow. I love these body pillow protectors so much I've ordered 5 so I'm never without! I also use their regular sized pillow protectors and it's the same exceptional quality. Coop home Good's outdid themselves with this one and I couldn't be happier. Body pillows are expensive and this is a good way for me to protect my investment without sacrificing any comfort! LOVE IT! UPDATE: I've been using these for a few months now and they're just as soft now as the day I put them on. But I have finally given in to the fact that they're a tad troublesome getting on and off. When I first got them I washed them often and line dried (these take a long time to dry, you have to flip them inside out over and over to get them fully dried because the inside will hold the water from the washing machine). However over time I've found myself washing them less frequently because it takes all day to get them dry but also because I'm always nervous the zipper will break during put ons and take offs. You are supposed to squish your pillow into and out of the opening which obviously is very possible but there's no way to avoid putting stress on the zipper opening during this process. Another thing about these protectors is that the greyish strip along the sides is NOT water proof. So everytime I do take the protectors off i find new stains along the sides where the pillow had no protection. And I could be wrong but I think the non-water proof gusseted sides are an essential to the extreme comfort of these protectors so I can't be too picky (otherwise I believe these would inflate with air anytime pressure is applied). If I didn't have young children I probably would've never even realized the sides aren't waterproof. I would still take the coop Home Good's pillow protector with non water proof gusseted sides over the average pillow protector ANY DAY.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2018
S
Verified Purchase
Stephenochi
Omaha, US
★★★★★ 5
Good pillow protector
Size: Queen Size (Pack of 2)
Looks and feels very durable. Didn't notice and odor when opened or in use. Fits my Coop Home Goods pillow perfectly! Sleep quality is still good with these covers on.
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Reviewed in the United States on March 29, 2026
M
Verified Purchase
MeMe🦋
West Palm Beach, US
★★★★★ 4
Very nice but expensive
Size: Queen Size (Pack of 2)
I love these cases, they didn't let out as much air as I had hoped for out the sides so I only zip it up half way so my pillow stays squishy and moldable and not partially filled with air which changes the feel of your pillow. Other then that they are great, they are very soft and quite, there is no noise whatsoever and there is some thickness to it adding a little more softness to your pillow. I ended up buying a second set. I just wish it had a little more airflow through the sides so I didn't have to leave it unzipped, that kind of defeats the purpose. I also think they are a little more expensive then they should be.
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Reviewed in the United States on February 2, 2026
K
Verified Purchase
Karma89love
Phoenix, US
★★★★★ 5
Does not change the pillows effectiveness at all.
Size: King Size (Pack of 2)
As of right now, I have not noticed anything with these covers that would significantly alter the way the pillows feel. I'm greatful that they are not noisy as most other covers are. I also appreciate that they have very much the same feel as the covers that come on the pillows. One thing I can say so far with confidence is that even though this is an additional layer to my pillows, the original feeling, specially with the Eden cool+, has been the same in terms of coolness and breathability.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 2, 2026

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