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

Clear BMW chassis

Please ensure your correct model is selected

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.

Sub-Categories

Sort By:
Glyco Connecting Rod Bearing Set
Glyco Connecting Rod Bearing Set
Glyco - Corporate Logo
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
Free Shipping on orders $49 and up
Add to Wish List
$ 84.66 USD
Free Shipping on orders $49 and up
Add to Wish List
Standard bore - 45mm
OEM Head Bolt Set - M50 M52 S50 S52
OEM Head Bolt Set - M50 M52 S50 S52
Victor Reinz - Corporate Logo
T#:1551
Part#: 11121721938
In Stock
$ 20.94 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 20.94 USD
Free Shipping on orders $49 and up
Add to Wish List
Head Bolt Set for all M50 engines with a steel engine block.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.​

This item fits the following BMWs:
992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1991-1995 E34 BMW 525i
1997-1998 E39 BMW 528i
1998-2000 Z3 BMW M Roadster M Roadster
Show More Show Less
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...
Glyco - Corporate Logo
T#:375823
Part#: 11211706847
Ships in 1-3 days
$ 136.06

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

$ 125.73 USD
Free Shipping
Add to Wish List
$ 125.73 USD
Free Shipping
Add to Wish List
Standard bore
M52TU/M54 Aluminum Block Head Bolt Set
M52TU/M54 Aluminum Block Head Bolt Set
Victor Reinz - Corporate Logo
T#:1560
Part#: 11121740065
Ships in 1 Business Day
$ 78.99

This product was last offered at the strikethrough price on
08-13-2026

$ 67.12 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 67.12 USD
Free Shipping on orders $49 and up
Add to Wish List
Head Bolt set for M52TU and M54 engines with aluminum block.

If you drive a European vehicle, chances are high your vehicle came equipped with one or more Victor Reinz gaskets. Choose OE quality VR gaskets and seals and do the job right the first time.

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1997-2003 E39 BMW 525i 528i 530i
2004-2005 E60 BMW 525i 525xi 530i 530xi
2004-2005 E83 BMW X3 2.5i X3 3.0i
2000-2006 E53 BMW X5 3.0i
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2003-2005 E85 BMW Z4 2.5i Z4 3.0i
Show More Show Less
Bremmen Camshaft Position Sensor - E46 E39 E60 E83 Z3 Z4
Bremmen Camshaft Position Sensor - E46 E39 E60 E83 Z3 Z4
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Bremmen Parts - Corporate Logo
T#:640145
Part#: 12147518628
Ships on Dec 16, 2026
Sale - Save 20% $ 32.99

This product was last offered at the strikethrough price on
11-07-2026

$ 26.39 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 20%
$ 32.99

This product was last offered at the strikethrough price on
11-07-2026

$ 26.39 USD
Free Shipping on orders $49 and up
Add to Wish List
A bad cam sensor can cause a variety of problems from hard starting to stalling at low speeds. Cam sensor replacement has been known to cure many drivability issues
Head Bolt Set - S54 - E46 M3, MZ3 S54, Z4 M
Head Bolt Set - S54 - E46 M3, MZ3 S54, Z4 M
Victor Reinz - Corporate Logo
T#:25748
Part#: 11127831862
In Stock at Vendor
$ 51.98 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 51.98 USD
Free Shipping on orders $49 and up
Add to Wish List
Head Bolt Set for the S54 engine.

If you drive a European vehicle, chances are high your vehicle came equipped with one or more Victor Reinz gaskets. Choose OE quality VR gaskets and seals and do the job right the first time.

This item fits the following BMWs:
2001-2006 E46 BMW M3
2001-2002 Z3 BMW Z3 M Roadster M Coupe
2006-2008 E85 BMW Z4 M Roadster M Coupe
Show More Show Less
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...
Glyco - Corporate Logo
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
Free Shipping
Add to Wish List
$ 119.33 USD
Free Shipping
Add to Wish List
59.75MM(+0.25) bore
Rein M50 M52 Piston Ring Set - Priced Each - 11251437077 - E36, E46, E34, E39
Rein M50 M52 Piston Ring Set - Priced Each - 11251437077 - E36, E46, ...
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:379819
Part#: 11251437077
Ships in 3 Business Days
$ 31.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 31.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Standard bore replacement piston rings
Glyco "Green" Crankshaft Bearing Shell - Set - E39, E46, E53, E83, Z3, Z4
Glyco "Green" Crankshaft Bearing Shell - Set - E39, E46, E53, E83, Z3...
Glyco - Corporate Logo
T#:374671
Part#: 11211706848
Ships in 1 day
$ 194.32 USD
Free Shipping
Add to Wish List
$ 194.32 USD
Free Shipping
Add to Wish List
Standard bore
Rein Exhaust Valve - E34, E36, E39, E46, Z3
Rein Exhaust Valve - E34, E36, E39, E46, Z3
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:379738
Part#: 11341739823
Ships on Nov 30, 2026
$ 20.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 20.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Replacement exhaust valve
Rein M54 S54 O-Ring Seal - 12141748398 - E46, E39, E60, E83, E53
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
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
Free Shipping on orders $49 and up
Add to Wish List
$ 2.75 USD
Free Shipping on orders $49 and up
Add to Wish List
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
Glyco - Corporate Logo
T#:374292
Part#: 11241278209
Ships in 1 Business Day
$ 6.11 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 6.11 USD
Free Shipping on orders $49 and up
Add to Wish List
Press fit into small journal of connecting rod
Rein M54 Piston Ring - Priced Per Piston - 11257506252 - E46, E39, E83, E53
Rein M54 Piston Ring - Priced Per Piston - 11257506252 - E46, E39, E8...
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:591606
Part#: 11257506252
Back Ordered
$ 53.99

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

$ 48.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 48.99 USD
Free Shipping on orders $49 and up
Add to Wish List

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
Show More Show Less
Victor Reinz O-Ring Seal
Victor Reinz O-Ring Seal
Cam sensor - intake or exhaust side
Victor Reinz - Corporate Logo
T#:369725
Part#: 12141748398
Ships in 7 Business Days
$ 2.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 2.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Always replace the o-ring when replacing sensor
Oil Pump Chain
Oil Pump Chain
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Bremmen Parts - Corporate Logo
T#:26271802
Part#: 11417576915
In Stock
Sale - Save 30% $ 18.99

This product was last offered at the strikethrough price on
11-07-2026

$ 13.29 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 30%
$ 18.99

This product was last offered at the strikethrough price on
11-07-2026

$ 13.29 USD
Free Shipping on orders $49 and up
Add to Wish List
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...
Glyco - Corporate Logo
T#:374670
Part#: 11211706849
Back Ordered
$ 172.99 USD
Free Shipping
Add to Wish List
$ 172.99 USD
Free Shipping
Add to Wish List
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...
Glyco - Corporate Logo
T#:374672
Part#: 11211706852
Back Ordered
$ 108.99 USD
Free Shipping
Add to Wish List
$ 108.99 USD
Free Shipping
Add to Wish List
59.75MM(+0.25) bore

Select Vehicle

BMW Mini
Clear Vehicle

Category

Brand

Price

$
$

Special Offers

Shipping