BMW Internal Engine Parts for BMW 5 Series E39 (1996-2003)

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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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King Performance BMW S54 Main Bearings - Std.
King Performance BMW S54 Main Bearings - Std.
King - Corporate Logo
T#:25706115
Part#: MB7039AM
In Stock
$ 169.99 USD
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$ 169.99 USD
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Performance Rod Bearing Set - Standard Size
Performance Rod Bearing Set - Standard Size
King - Corporate Logo
T#:4840520
Part#: CR6640XP
In Stock at Vendor
$ 163.99

This product was last offered at the strikethrough price on
05-22-2026

$ 148.99 USD
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$ 148.99 USD
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These King Performance Series bearings are recommended for performance applications. These bearings are designed for aftermarket gasoline or diesel engine rebuilding and performance engines with OE or upgraded crankshafts. These King Performance Series bearings have an improved crankshaft finish for reducing microscopic ferrite peaks on improperly ground or polished nodular cast iron crankshafts. The bearings feature improved oil clearance to reduce wear and increase engine life, which in turn reduces operating noise, vibration, and excess oil flow.
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King Performance BMW M50 Rod Bearings - Std.
King Performance BMW M50 Rod Bearings - Std.
King - Corporate Logo
T#:25706122
Part#: CR6640SM
In Stock
$ 178.99 USD
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$ 178.99 USD
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Achilles Motorsports Performance Coated Rod Bearing Set - BMW M50 M52 M54 S52
Achilles Motorsports Performance Coated Rod Bearing Set - BMW M50 M52...
Achilles Motorsports - Corporate Logo
T#:1438265
Part#: 11-AM-RCRB-M50
Ships in 4 Business Days
$ 159.99 USD
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$ 159.99 USD
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Achilles Motorsports uses an extremely hi-tech Dry Film Lubricating process that will keep friction to a minimum allowing your engine to rev faster without worry while keeping oil temperature lower. Perfect for high-performance street, sprint, or endurance racing engines, this specialized coating protects vital engine bearings on dry engine starts and during extreme temperatures and high RPM operation. This specialized coating is the same process that is the choice of professional engine builders around the world, used on all NASCAR, ALMS, and Grand-Am engines. Achilles' bearings provide increased insurance against mechanical thermal breakdown compared to the OEM type bearing, showing much less wear during routine inspections. Note For high-performance and racing engines, we strongly recommend upgrading the OEM type connecting rod bolts to an ARP Connecting Rod Bolt Set to keep your bearing and caps tight even under the most extreme conditions, eliminating potential walk and bearing problems. As with all racing and performance bearings, professional installation is required. Please check all clearances as per the manufactures specifications.
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Engine Main Bearing Set - Standard Size
Engine Main Bearing Set - Standard Size
King - Corporate Logo
T#:27638798
Part#: MB5872XP
In Stock at Vendor
$ 125.99 USD
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$ 125.99 USD
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King Performance BMW S54 Main Bearings - .25 Oversize
King Performance BMW S54 Main Bearings - .25 Oversize
King - Corporate Logo
T#:25706120
Part#: MB7039AM0.25
Ships in 7 Business Days
$ 178.99 USD
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$ 178.99 USD
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Replace your worn out OE main bearings with King's .25 Oversize Performance S54 Main Bearing Set!
Thrust Washer Set
Thrust Washer Set
King - Corporate Logo
T#:27638800
Part#: TW2037AM
In Stock at Vendor
$ 16.99 USD
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$ 16.99 USD
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Connecting Rod Bearing Set - 0.25mm Oversized
Connecting Rod Bearing Set - 0.25mm Oversized
King - Corporate Logo
T#:27638799
Part#: CR8063XP0.25
Ships in 3 Business Days
$ 153.99 USD
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$ 153.99 USD
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