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BMW Internal Engine Parts for BMW X Series E84 (2013-2015)

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Rebuilding your engine or giving your cylinder head an overhaul? Internal engine components covers parts that are located within the engine block and cylinder head. Examples include: timing chains and tensioners, rocker arms, rod bolts and studs, head bolts, valve springs, connecting rods, and more. These are Genuine BMW engine parts, performance upgrades, or approved aftermarket brands that have a long track record of reliability and quality.

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MMX Performance - 4-Pin One-Piece Crank Hub Upgrade Kit - With MMR Ca...

T#:45039725

Part#: MMR20-1004FK

Ships in 4 Business Days

$ 1,227.99 USD

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$ 1,227.99 USD

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The centerpiece of this MMX kit is the UK-made CNC-machined one-piece crank hub, created from billet EN36 steel that's heat-treated with a 0.75mm case hardening, making it incredibly strong and durable. Included are four aerospace precision-machined dowels that mechanically lock the hub to the end of the crank itself, plus a brand new OE bolt. Installation of these dowels is certainly not a DIY job. But, to make the job easier for the professionals, ensuring that the required crank modifications are made safely and accurately, the MMX kit also includes a full installation jig that includes a bolt-on drilling guide, a location bolt for this guide, plus an HSS rolled high-speed drill bit. Together, the single-piece design combined with the four-pin location ensures that there is simply no way that the friction plates can ever slip. With the new OE crank bolt tightened appropriately, this delivers a transformational improvement in reliability and peace of mind versus the OE version. Also included is the MMR Crank Bolt Capture Plate. This adds one additional layer of defense, preventing the crank bolt from being able to back out and loosen over time, ensuring everything is tightly held together as intended.

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OEM Febi Eccentric Shaft - BMW N55 S55 3.0L

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T#:31522948

Part#: 11377589883F

Ships in 3 Business Days

$ 1,014.99

This product was last offered at the strikethrough price on
05-04-2026

$ 910.74 USD

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$ 910.74 USD

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The eccentric shaft is an important component of BMW's Valvetronic system, a form of variable valve lift control. If the teeth on the gear or the lobes have worn out, this can result in improper valve lift, decreased or abnormal performance, and even damage to cylinder head components. Replace your eccentric shaft with this high-quality part from OEM Febi to restore performance and eliminate valve lift issues without the marked-up price of a Genuine BMW eccentric shaft.

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S55 / N55 One-Piece Crank Hub Upgrade Kit - 4-Pin

T#:19891361

Part#: MMR20-1004

Ships in 2 Business Days

$ 1,064.99 USD

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$ 1,064.99 USD

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Both the N55 and S55 engines are plagued by the same issue when chasing high horsepower numbers... the dreaded crankhub failure. Fortunately MMR Performance has released an upgraded version of their already stout single-piece crankhub, but this time offering a 4-pin dowelled location that locks onto the front of the crankshaft. This configuration eliminates the multi-piece crankhub with friction discs in favor of a more robust single piece crankhub. Recommended for high-powered cars over 700 Horsepower

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MMR Crank Hub Kit - N55/S55

T#:4565824

Part#: MMR20-1003FK

Ships in 3 Business Days

$ 849.99 USD

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$ 849.99 USD

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Anyone with a modified N55/S55 knows the risks involved with the OEM Crank Hub. When the engine simply can't handle the stresses its put under or the design is such that it simply does not support extreme conditions, issues can arise. Under certain conditions, the N55/S55 crank hub likes to spin, without warning and even when the engine is in perfect health. MMR has produced a EN36 machined billet one-piece crank hub heat treated with a 0.75mm case hardening which makes it extremely durable. Due to the one-piece design, it ensures that the friction plates cannot slip. This offers a huge jump in reliability when paired with a new properly torques crank bolt. Installation is requires no drilling or modification to the OEM crankshaft ensuring a perfect fit! Included in this kit is MMR's T-6061 machined billet aluminum capture plate anodized in their trademark finish. The MMR Performance capture plate secures the head of the OE crank bolt and prevents it from turning or being able to loosen. *Installation recommended by a professional shop or technician.

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URO VVT Adjustment Unit - Exhaust Camshaft - BMW N52 N55 S55 3.0L ...

2X Entries Into Our F80 M3 Sweepstakes

T#:7530051

Part#: 11367583208

In Stock

$ 201.99 USD

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$ 201.99 USD

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This timing chain camshaft gear controls the camshaft position and timing and is located toward the front of the engine. Located on the exhaust side of the engine at the front end of the exhaust camshaft. Sometimes changed when replacing the timing chain. T#34658 may also be required when servicing this part.

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Febi Intake Hydraulic Tappet

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T#:381750

Part#: 11337548690

Ships in 2 Business Days

$ 24.99 USD

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$ 24.99 USD

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Hydraulic valve lifter

URO Exhaust Variable Valve Timing Sprocket - N20

2X Entries Into Our F80 M3 Sweepstakes

T#:55749602

Part#: 11367583819

Ships in 2 Business Days

$ 194.99 USD

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$ 194.99 USD

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The variable valve timing system on modern BMW engines is critical for both daily street driveability and wide-open throttle performance. When the factory exhaust gear wears down, it compromises the responsiveness of your BMW powerplant.

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Febi Rocker Arm

Exhaust

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T#:370956

Part#: 11337559797

Special Order: No Guaranteed ETA

$ 30.99 USD

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$ 30.99 USD

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Located on cam shaft

Camshaft Adjuster Magnet

T#:56218576

Part#: 11367593719

Special Order: No Guaranteed ETA

$ 34.99 USD

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$ 34.99 USD

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The Febi Bilstein Camshaft Adjuster Magnet delivers the high-speed actuation required to keep your dynamic valve timing operating accurately under demanding driving conditions.

Variable Valve Timing Sprocket

T#:56291040

Part#: 11367522288

Special Order: No Guaranteed ETA

$ 142.99 USD

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$ 142.99 USD

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Keep your BMW’s VANOS system functioning at its peak with this Febi Bilstein Intake Camshaft Adjuster.

URO Variable Valve Timing Sprocket - Intake Camshaft - BMW N20 2.0L ...

2X Entries Into Our F80 M3 Sweepstakes

T#:43750198

Part#: 11367583818

Ships in 2 Business Days

$ 187.99 USD

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$ 187.99 USD

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This sprocket is the replacement cam gear for the inlet camshaft. Replace this so your timing chain meshes perfectly with the gear teeth for optimal performance.

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