BMW Internal Engine Parts for BMW 3 Series E46 (1999-2005)

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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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Glyco Connecting Rod Bearing Set
Glyco Connecting Rod Bearing Set
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Glyco - Corporate Logo
T#:375825
Part#: 11241284849
Ships in 1 Business Day
$ 92.02 USD
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$ 92.02 USD
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Standard bore - 45mm
Glyco "Yellow" Crankshaft Bearing Shell - Set - E28, E30, E34, E36, E39, E46, E53, E60, E83, Z3, Z4
Glyco "Yellow" Crankshaft Bearing Shell - Set - E28, E30, E34, E36, E...
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Glyco - Corporate Logo
T#:375823
Part#: 11211706847
In Stock
$ 136.06 USD
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$ 136.06 USD
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Standard bore
Rein Piston Ring Set
Rein Piston Ring Set
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Rein - Corporate Logo
T#:379819
Part#: 11251437077
Ships in 3 Business Days
$ 31.99 USD
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$ 31.99 USD
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Standard bore replacement piston rings
Glyco "Yellow" Crankshaft Bearing Shell - Set - E30, E36, E39, E46, E53, E60, E83, Z3, Z4 - 1st Overside (+0.25)
Glyco "Yellow" Crankshaft Bearing Shell - Set - E30, E36, E39, E46, E...
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Glyco - Corporate Logo
T#:375824
Part#: 11211706850
In Stock at Vendor
$ 126.61 USD
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$ 126.61 USD
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59.75MM(+0.25) bore
Glyco "Green" Crankshaft Bearing Shell - Set - E39, E46, E53, E83, Z3, Z4
Glyco "Green" Crankshaft Bearing Shell - Set - E39, E46, E53, E83, Z3...
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Glyco - Corporate Logo
T#:374671
Part#: 11211706848
Ships in 1 day
$ 194.32 USD
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$ 194.32 USD
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Standard bore
Rein Exhaust Valve - E34, E36, E39, E46, Z3
Rein Exhaust Valve - E34, E36, E39, E46, Z3
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Rein - Corporate Logo
T#:379738
Part#: 11341739823
Ships on Jul 27, 2026
$ 20.99 USD
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$ 20.99 USD
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Replacement exhaust valve
OEM Rein Camshaft / Crankshaft Sensor O-Ring - Multiple BMWs
OEM Rein Camshaft / Crankshaft Sensor O-Ring - Multiple BMWs ...
Cam sensor - intake or exhaust side
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Rein - Corporate Logo
T#:12463
Part#: 12141748398
In Stock
$ 4.99

This product was last offered at the strikethrough price on
06-29-2026

$ 2.75 USD
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$ 2.75 USD
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This is the o-ring used for most BMW camshaft sensors and crankshaft sensors. Although most sensors that we sell come with this o-ring at no charge, they may be the source of oil or fluid leaks.
Glyco Connecting Rod Bushing
Glyco Connecting Rod Bushing
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Glyco - Corporate Logo
T#:374292
Part#: 11241278209
Ships in 1 Business Day
$ 6.11 USD
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$ 6.11 USD
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Press fit into small journal of connecting rod
Piston Ring - Priced Per Piston | BMW M54 3.0L Engine
Piston Ring - Priced Per Piston | BMW M54 3.0L Engine
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Rein - Corporate Logo
T#:591606
Part#: 11257506252
Ships in 3 Business Days
$ 48.99 USD
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$ 48.99 USD
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Piston Ring - Priced Per Piston | BMW M54 3.0L Engine is a vital component in maintaining proper compression and oil control in BMW M54 3.0L engines. Over time, piston rings experience wear from continuous movement within the cylinder bore, leading to decreased engine efficiency. Worn or damaged rings can result in excessive oil consumption, reduced performance, and visible black or blue smoke from the exhaust. Ideal for engine rebuilds, this high-quality replacement ensures optimal sealing and longevity.

  • Restores proper compression and oil control for improved engine performance
  • Reduces oil consumption and minimizes exhaust smoke
  • Direct-fit replacement for BMW M54 3.0L engine pistons
  • Manufactured from high-strength materials for durability and longevity
  • Essential for engine rebuilds and maintaining peak efficiency
  • Designed to withstand high temperatures and pressures for reliable operation
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Glyco "White" Crankshaft Bearing Shell - Set - E28, E30, E34, E36, E39, E46, E53, E60, E83, Z3, Z4
Glyco "White" Crankshaft Bearing Shell - Set - E28, E30, E34, E36, E3...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Glyco - Corporate Logo
T#:374670
Part#: 11211706849
Back Ordered
$ 177.99

This product was last offered at the strikethrough price on
05-07-2026

$ 172.99 USD
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$ 172.99 USD
Free Shipping
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Standard bore
Glyco "White" Crankshaft Bearing Shell - Set - E28, E30, E34, E36, E39, E46, E53, E60, E83, Z3, Z4
Glyco "White" Crankshaft Bearing Shell - Set - E28, E30, E34, E36, E3...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Glyco - Corporate Logo
T#:374672
Part#: 11211706852
Back Ordered
$ 111.99

This product was last offered at the strikethrough price on
05-07-2026

$ 108.99 USD
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$ 108.99 USD
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59.75MM(+0.25) bore

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