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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

T#:375825

Part#: 11241284849

Ships in 1 Business Day

$ 92.02

This product was last offered at the strikethrough price on
07-15-2026

$ 84.66 USD

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$ 84.66 USD

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Standard bore - 45mm

Ferrea Performance Intake Valve - Stock Size

T#:583445

Part#: F1550P

Back Ordered

$ 34.99

This product was last offered at the strikethrough price on
11-04-2026

$ 31.99 USD

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$ 31.99 USD

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Glyco "Yellow" Crankshaft Bearing Shell - Set - E28, E30, E34, E36, E...

T#:375823

Part#: 11211706847

Ships in 1 Business Day

$ 136.06

This product was last offered at the strikethrough price on
07-15-2026

$ 125.73 USD

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$ 125.73 USD

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Standard bore

BE Bearings Connecting Rod Bearing Upgrade Set - SP1534F - BMW S54 ...

T#:403644

Part#: SP1534HKSTDS54

Ships on Dec 11, 2026

$ 399.00 USD

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$ 399.00 USD

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NOTE: These bearings are now sold as SP1534F which features a new and improved silver oxide coating that is stronger and more durable! Designed and manufactured by Clevite to BE Bearing specifications. These bearings replace the factory BMW rod bearings. The original BMW bearings have too little clearance, which leads to premature bearing wear and can cause early engine failure. Furthermore, the factory BMW bearings are made from tin-aluminum which are 5-times harder than a softer lead-copper bearing design. A softer bearing is better for your engine and more tolerant of foreign particles suspended in your oil. These BE Bearings feature a state-of-the-art Clevite Tri-Metal design with the Clevite Tri-Armor(tm) coating. Lead-copper design for greater durability and easy tracking with oil analysis like Blackstone (recommended). Designed with extra clearance to "fix" the BMW rod bearing design flaw. Designed for use with factory 10W60 weight oils. Tri-Armor coated for low conditions during cold start Ideal for start-stop vehicles Applicable for BMW engines S54 Standard size Sold as complete set (6-cylinders) Fits the following BMWs: 2002-2006 E46 BMW M3 S54 2002-2003 Z3 BMW M Coupe, M Roadster S54 2006-2008 Z4 BMW M Coupe, M Roadster S54

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Ferrea Performance Exhaust Valve - Stock Size

T#:583444

Part#: F1552P

Ships on Dec 1, 2026

$ 34.99

This product was last offered at the strikethrough price on
11-04-2026

$ 31.99 USD

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$ 31.99 USD

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Glyco "Yellow" Crankshaft Bearing Shell - Set - E30, E36, E39, E46, E...

T#:375824

Part#: 11211706850

In Stock at Vendor

$ 126.61

This product was last offered at the strikethrough price on
07-15-2026

$ 119.33 USD

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$ 119.33 USD

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59.75MM(+0.25) bore

Rein M50 M52 Piston Ring Set - Priced Each - 11251437077 - E36, E46, ...

2X Entries Into Our F80 M3 Sweepstakes

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 "Green" Crankshaft Bearing Shell - Set - E39, E46, E53, E83, Z3...

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

2X Entries Into Our F80 M3 Sweepstakes

T#:379738

Part#: 11341739823

Ships on Dec 1, 2026

$ 20.99 USD

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$ 20.99 USD

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Replacement exhaust valve

Rein M54 S54 O-Ring Seal - 12141748398 - E46, E39, E60, E83, E53 ...

Cam sensor - intake or exhaust side

2X Entries Into Our F80 M3 Sweepstakes

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

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

Rein M54 Piston Ring - Priced Per Piston - 11257506252 - E46, E39, E8...

2X Entries Into Our F80 M3 Sweepstakes

T#:591606

Part#: 11257506252

Back Ordered

$ 53.99

This product was last offered at the strikethrough price on
10-28-2026

$ 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, E3...

T#:374670

Part#: 11211706849

Back Ordered

$ 172.99 USD

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$ 172.99 USD

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Standard bore

Glyco "White" Crankshaft Bearing Shell - Set - E28, E30, E34, E36, E3...

T#:374672

Part#: 11211706852

Back Ordered

$ 108.99 USD

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$ 108.99 USD

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59.75MM(+0.25) bore

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