BMW Internal Engine Parts for BMW F80 M3 S55 3.0L

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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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Bav Auto Crankshaft Front Oil Seal Removal / Installer Tool - N54, N5...

T#:580444

Part#: B8800139

Ships on Sep 1, 2026

Sale - Save 5% $ 203.99

This product was last offered at the strikethrough price on
05-03-2026

$ 193.79 USD

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Sale - Save 5%

$ 203.99

This product was last offered at the strikethrough price on
05-03-2026

$ 193.79 USD

Add to Wish List

Used in removal and installation of the front crankshaft seal on BMW N55 engines, a common job that you can save yourself a ton of money doing at home.

Performance Dual Valve Spring Kit with Steel Retainers - Set Of 24 ...

T#:21604308

Part#: SPRKFE20N54BE

Ships in 5 Business Days

$ 965.99 USD

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$ 965.99 USD

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Supertech has the high performance valvetrain components you need to take your build to the next level. Can be used with factory valve stem seals and keepers. InnSpr.OD: 21mm InnSpr.ID: 14.2mm Seat Pressure: 75 @ 36.5 Open Pressure: 155 @ 10 Max Lift: 12mm Coil Bind: 23.2mm Rate: 8 Kit spring: SPR-FE20BE Kit spring qty: 24 Retainer: RET-BMN54-TI (5mm) / RET-BMN54-TE (6mm) OutSpr.OD: 24.4mm OutSpr.ID: 17.6mm Retainer qty: 24

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Spline Lock Crank Hub Kit - S55

T#:1653160

Part#: S55CHUB1KT

Ships in 4 Business Days

$ 1,271.99 USD

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$ 1,271.99 USD

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Under certain conditions, the N55/S55 crank hub likes to spin, without warning and even when the engine is in perfect health. This kit includes every thing needed to prevent that issue from happening and gives you peace of mind.

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MAHLE PowerPak Piston Kit 84mm with Thermal Barrier Coating (TBC) - S...

T#:2929000

Part#: 197879807T

Special Order: No Guaranteed ETA

$ 1,271.99 USD

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$ 1,271.99 USD

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Forged, 2618. Get the performance and reliability your S55 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.

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