SKU: 62080585650

SSR PERFORMANCE DOUBLE-KEYED 4-PIN CRANK HUB BUNDLE FOR BMW M3 F80 M4 F82 F83 & M2 COMPETITION F87 S55

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Description

SSR PERFORMANCE DOUBLE-KEYED 4-PIN CRANK HUB BUNDLE FOR BMW M3 F80 M4 F82 F83 & M2 COMPETITION F87 S55DOUBLE KEYED CRANK HUB What is a Double Keyed Crank Hub? Failed or spun crank hubs have been reported throughout the S55 community on a regular basis, which has lead to valid concerns of the integrity of the factory hub, bolt and sprocket assembly. If a crank hub fails or spins it will cause the engine valve timing to skip or jump, potentially causing engine damage or failure. We have seen several of these through our workshop, we highly recommend

DOUBLE KEYED CRANK HUB


What is a Double-Keyed Crank Hub?

Failed or spun crank hubs have been reported throughout the S55 community on a regular basis, which has lead to valid concerns of the integrity of the factory hub, bolt and sprocket assembly. If a crank hub fails or spins it will cause the engine valve timing to skip or jump, potentially causing engine damage or failure.

We have seen several of these through our workshop, we highly recommend fixing the crank hub issue for any engine that has completed over 60,000km and is used on track days or hard downshifting.

SSR's new double-keyed and two-piece crank hub has fast become known as the reliable alternative to the factory design.

Double-Keyed Locking Assembly design locks the valve timing chain sprocket and the oil pump chain sprocket together to prevent one from spinning independent of the other. The oil pump sprocket is also pinned to the crankshaft nose. This Double-Keyed design ensures the sprockets will not rotate out of position.

Two-Piece Design. The original crank hub assembly is made up of three pieces; the hub, the engine timing sprocket, the oil pump sprocket and the crankshaft bolt. The SSR Performance design combines the hub and timing sprocket into one machined piece. This ensures that as long as the bolt is properly tightened to the crank the timing sprocket is always in sync with the crank. This acts as added insurance to the double-keyed design mentioned above.

WHY DO I NEED IT?

If your BMW M3 F80, M4 F82, F83 or M2 Competition F87 S55 is track used, modified or heavily modified installing the SSR Crank Hub is highly recommended. A spun crank can lead to engine failure with repair costs in excess of $20,000 or if slightly luckier broken down until vehicle is sent back to workshop for the crank hub to be replaced anyway and the engine retimed.

The SCH (Spun Crank Hub) failure has been seen on both stock and modified S55 engines. If you are modifying your car, doing track work or driving hard then upgrading the crank hub in your S55 powered M car is a fail safe you will not regret.

NOTE: Drilling holes into the crankshaft using the supplied specialty drill bit is required to mate the locking pins with the crankshaft.

100% BULLETPROOF.

Globally we understand there is a 100% success rate of the SSR Performance Double-Keyed 4-Pin Crank Hub.

SSR PERFORMANCE CRANK HUB BUNDLE INCLUDES:

  • SSR Performance Two-Piece Keyed Crank Hub (SSR-S55-CRANK)

  • Crank Bolt Capture (Part No. S55-CBC)

  • Genuine BMW Parts OEM Crank Bolt (Part no. BM-11217614270)

  • Genuine BMW Parts OEM Valve Cover Gasket (Part no. BM-11127587804)

  • Genuine BMW Parts OEM Cam Bolts (2) (Part no. BM-11367524954)

  • Genuine BMW Parts OEM Engine Inspection Plug (2) (Part no. BM-11117849396)

  • Genuine BMW Parts OEM Front Main Seal (Part no. BM-11118618864)

  • Genuine BMW Parts OEM Brake Booster Vacuum Pump Seal Cap (Part no. BM-11117530262)

  • Genuine BMW Parts OEM Oil Pump Chain Tensioner Access Cap (Part no. BM-11117615131)

  • Genuine BMW Parts OEM Sump Gasket (Part no. BM-11137600482)

  • Genuine BMW Parts OEM Sump Bolts (Part no. BM-11132210959)

  • MAHLE or MANN Filter Oil Filter

  • Specialty Drill Bit

  • Drill Fixture Tool

  • Drill Fixture Bolt

INSTALLATION:

Installation of any crank hub solution is extensive and must be carried out by highly qualified technicians only, the oil pan, valve covers, subframe, steering and suspension must be removed and re-installed. BMW-Specific specialty tools are required in order to set the engine cam and valve timing. Drilling holes into the crankshaft using the supplied specialty drill bit is required to mate the locking pins with the crankshaft.

We have done a number of these at BM Performance Centre.

WARNING: Improper installation may cause irreversible engine damage.

INSTALLATION TIPS:

  1. This is a great time to upgrade your turbos as everything is out of the way.
  2. For high output or high km builds it is also a great time to consider replacing the rod bearings, everything is out of the way and ready to go for a very quick and easy installation.
  3. Many components, bolts and hardware are single-use only, please ensure no bolts are re-used during this installation that should not be.
  4. The oil system must be primed prior to re-starting the engine due to the crankcase being opened up and pressure being released.

APPLICATIONS:

  • BMW M3 F80 (2014-2018)

  • BMW M3 F80 Competition (2016-2018)

  • BMW M4 F82/F83 (2014-2020)

  • BMW M4 F82/F83 Competition (2016-2020)

  • BMW M4 GTS (2016)
  • BMW M2 CS (2020)

  • BMW M2 Competition F87 (2018-2020

 


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    Exchange/Return Notes
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    • Final sale items are not eligible for returns or exchanges.
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    SKU: 62080585650

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    Bri M.
    Louisville, US
    ★★★★★ 5
    Perfect for Acne-Prone Skin!
    This serum has honestly been a great addition to my routine for redness and post-acne marks. The texture is lightweight, hydrating, and doesn’t feel sticky or heavy on my oily/acne-prone skin. I have sensitive skin with a focus on barrier protection, and this didn’t irritate my skin at all. It layers beautifully with the rest of my skincare and leaves my skin looking calmer and smoother over time. AND, it doesn’t have a smell!! Definitely one of my favorite azelaic acid serums I’ve tried.
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    Reviewed in the United States on May 18, 2026
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    Leyla Leiva
    Phoenix, US
    ★★★★★ 5
    6-Month Update: Still a staple for sensitive, acne-prone skin
    Size: 3.38 Fl Oz (Pack of 1), Size: 3.38 Fl Oz (Pack of 1)
    I originally reviewed this ampoule when I first started using it, and now after about six months of consistent use (morning and night), I feel confident giving a more long-term update. I have sensitive, acne-prone, combination skin, and this has remained one of the most reliable products in my routine. The texture is still one of my favorite things about it — very lightweight, absorbs quickly, and layers well under moisturizer and sunscreen without pilling. Over time, I’ve noticed: Less visible redness More balanced oil production in my T-zone Fewer irritation flare-ups when introducing new products No clogged pores or breakouts from this formula It doesn’t feel heavy or sticky, even in humid weather. I’ve continued repurchasing and even keep it on subscription because it consistently performs without causing sensitivity. If you’re looking for a gentle, soothing centella product that works well for long-term barrier support, this has proven to be a dependable option in my experience.
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    Reviewed in the United States on December 9, 2025
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    Daegon
    Alexandria, US
    ★★★★★ 5
    Healed my barrier so fast
    Size: 3.38 Fl Oz (Pack of 1)
    I received this ampoule yesterday and I'm already leaving a 5 star review after 2 uses because it just worked so well. I bought it because I've recently incorporated the Timeless 20% Vitamin C into my routine and that + my tretinoin made my skin drier than I've ever felt it before, even gently swiping a cotton pad with micellar would sting on some parts of my face. As soon as this ampoule arrived I applied it to clean skin and layered squalane on top (my moisturizer was burning as well.) This product did not sting my face AT ALL. It instead felt immediately soothing and hydrating. When I woke up this morning almost all of my redness was gone, my skin didn't feel tight or irritated, and my skin tone looked so even and glowy. I never thought a product, especially such a simply formulated one, could heal my barrier so quickly but that's exactly what it did and I can already tell it's a repeat buy. If you have redness prone sensitive skin and/or you use several high strength actives, this ampoule is a must have and it might be the key for anyone struggling to tolerate high strength retinoids. I got the largest size bottle for $15 on sale and it's seriously one of the most affordable and effective skincare products I've ever had in my routine.
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    Reviewed in the United States on May 30, 2026
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    Luffy’s Mom I Real Life Tester
    New York, US
    ★★★★★ 5
    Safe, Lightweight, Hydrating – Perfect for sensitive, super oily, acne-prone skin
    Size: 1.85 Fl Oz (Pack of 1), Size: 1.85 Fl Oz (Pack of 1)
    I care most about the ingredients, and this Madagascar Centella Ampule is excellent — all the ingredients are safe, with no potential harm to your health, and it’s Yuka app approved with a 100/100 safety score. I feel confident using it on my sensitive, super oily, acne-prone skin. It’s super lightweight, absorbs quickly, and is not sticky at all — after applying, you just feel comfortable hydration. Even after a few hours, my skin doesn’t get oily, unlike some other serums I’ve used. It helps calm my skin and restore the barrier, which is perfect for my skin type. Even when I have acne wounds, it doesn’t irritate or sting — it’s extremely gentle. For sensitive, super oily, acne-prone skin like mine, it works wonderfully. Living in Utah, one of the driest states in the U.S., this serum keeps my skin hydrated even in very dry conditions, and a little goes a long way — 1–1.5 drops cover my face and neck. Using more can make my skin slightly oily, so just the right amount works perfectly. For someone with dry skin, results may differ, but for my skin type, it works beautifully. It’s also super affordable, and I’m glad it’s available on Amazon, with occasional great deals at Costco. I appreciate that it’s accessible at this price because this serum helps my skin a lot — very gentle on my acne-prone, sensitive, super oily skin. The serum is super easy to apply with the dropper, which keeps other things from getting into the bottle — it’s perfect for easy, hygienic application. Just note that the bottle is glass, so be careful — it may break if dropped. I’ve only been using it for three weeks, but it’s already a staple. I currently use one bottle, and the other two are extra for long-term use, especially since I got them on a great deal. This is now my main hydration serum, and I’ll update after longer use if needed.
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    Reviewed in the United States on January 19, 2026
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    Garden Grrl
    Whiting, US
    ★★★★★ 5
    Very impressed
    Size: 3.38 Fl Oz (Pack of 1)
    Really impressed by this serum! Got this to soothe my skin after overdoing it with too many different “actives”, and it gently and quickly got rid of redness and flaking, restored my skin barrier, and left my skin so moisturized and supple that I didn’t even feel like I needed lotion or cream afterwards. And it’s a GENEROUSLY sized glass bottle, too! I will definitely be trying other products from this brand!
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