BMW Internal Engine Parts for BMW X Series E53 (2000-2006)

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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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Supertech Upgraded Valve Stem Seal Kit - BMW S54 S52 S50 M54 M52 M50
Supertech Upgraded Valve Stem Seal Kit - BMW S54 S52 S50 M54 M52 M50 ...
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T#:641030
Part#: VS-VBM6-6CYLKT
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$ 27.99 USD
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$ 27.99 USD
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Includes a full set of polyacrylic intake and viton exhaust valve stem seals! Looking to replace your valve stem seals due to leaks, cracks, splits, or even during an upgrade of your camshafts, valve springs, or valves? Supertech valve stem seals are the way to go! This cheap but effective seal replaces the stock BMW seals that are notoriously prone to issues due to heat cycles and chemicals which cause the seals to become weak and brittle. Supertech seals offer a significantly longer life span and are resistant to both heat and chemicals thanks to their use of Viton or Polyacrylic construction (dependant on valve type). That means less time in the garage and more time on the street or track! These seals are also great for anyone who is looking to upgrade to dual valve springs thanks to the seal's overall thinner outer diameter! Guide OD: 8.8mm/.347" Seal OD: 12.2mm/.480"
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Oil Pump Chain - E36 E46 E34 E39 Z3 Z4
Oil Pump Chain - E36 E46 E34 E39 Z3 Z4
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Iwis - Corporate Logo
T#:14529
Part#: 11417576915
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$ 45.89 USD
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$ 45.89 USD
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This is an OEM oil pump chain for BMW's with the M50/M52/M54/S50/S52 6 cylinder engine. We recommend replacing the oil pump chain any time you remove the oil pump from the car.

IWIS is a leader in complex engine parts. Using advanced techniques in research and design allows IWIS to offer parts that not only repair but ultimately improve the way your engine runs.

This item fits the following BMWs:
1992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1991-1995 E34 BMW 525i
1997-2003 E39 BMW 525i 528i 530i
2004-2005 E60 BMW 525i 530i
2004-2005 E83 BMW X3 2.5i X3 3.0i
1996-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
1998-2000 Z3 BMW M Roadster M Coupe
2003-2006 E85 BMW Z4 2.5i Z4 3.0i
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Camshaft Timing Chain - E39 E38 E53 X5 with M62 V8 engine
Camshaft Timing Chain - E39 E38 E53 X5 with M62 V8 engine
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Iwis - Corporate Logo
T#:14505
Part#: 11311747437
In Stock
$ 62.99

This product was last offered at the strikethrough price on
03-02-2026

$ 34.43 USD
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$ 34.43 USD
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This is the timing chain that connects the 2 camshaft sprockets. The M62 V8 engine is known for issues with the timing system. Replace the timing chain on your BMW with this OEM part. We also recommend replacing guides and tensioners while replacing the chain. Sold individually. 2 per car.

IWIS is a leader in complex engine parts. Using advanced techniques in research and design allows IWIS to offer parts that not only repair but ultimately improve the way your engine runs.​

This item fits the following BMWs:
1997-2003 E39 BMW 540i
1996-2001 E38 BMW 740i 740il
1996-1999 E31 BMW 840i 840ci
2000-2003 E53 BMW X5 4.4i X5 4.6is
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SuperTech Dual Valve Spring Upgrade Kit w/ Steel Retainers - 80lbs - BMW M50 M52 M54 S52
SuperTech Dual Valve Spring Upgrade Kit w/ Steel Retainers - 80lbs - ...
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Supertech - Corporate Logo
T#:26038568
Part#: SPRKH1000DBMST
In Stock
20% off MSRP $ 1,042.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 833.99 USD
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20% off MSRP
$ 1,042.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 833.99 USD
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Crafted from premium Superclean Chrome Silicon Vanadium Steel alloy, these valve springs offer exceptional performance and durability even at high RPMs. CAD engineering ensures that the wire stress levels remain within defined limits for long-lasting durability, even under extreme racing conditions. Advanced computer software allows Supertech to meticulously control harmonics, ensuring optimal performance. Manufactured with high-quality military-certified Steel, the retainers are CNC machined to provide a precise fit, guaranteeing longevity and reliability.
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OEM IWIS Lower Timing Chain - E36, E46, E39, Z3 E60
OEM IWIS Lower Timing Chain - E36, E46, E39, Z3 E60
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Iwis - Corporate Logo
T#:362220
Part#: 11311432176
In Stock
$ 83.99

This product was last offered at the strikethrough price on
06-08-2026

$ 79.99 USD
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$ 79.99 USD
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IWIS is a leader in complex engine parts. Using advanced techniques in research and design allows IWIS to offer parts that not only repair, but ultimately improve the way your engine runs.
BMW M42 M50 M52 M54 6mm Single Groove Valve Keeper - Set Of 24
BMW M42 M50 M52 M54 6mm Single Groove Valve Keeper - Set Of 24 ...
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Supertech - Corporate Logo
T#:21604313
Part#: KPR-6S-7-24
In Stock
$ 51.99 USD
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$ 51.99 USD
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BMW M42 M50 M52 M54 6mm Single Groove Valve Keeper is a precision-engineered component essential for securing valves in BMW engines. Turner Motorsport offers this high-quality valve keeper, designed to fit specific Supertech valves for enhanced performance and reliability.

  • Precision Fit: Designed specifically for BMW M42, M50, M52, and M54 engines, ensuring a perfect fit with 6.0mm single groove valves.
  • High-Quality Construction: Made from durable materials to withstand high-pressure conditions and provide long-lasting performance.
  • Enhanced Valve Security: Two keepers are required per valve to securely hold the valve in place, preventing movement and ensuring consistent engine performance.
  • Compatibility: Ideal for use with certain Supertech valves, providing a reliable solution for engine builds and upgrades.
  • Easy Installation: Simple to install with standard tools, offering a hassle-free upgrade or replacement option.
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Crankshaft to Camshafts Lower Timing Chain - E39 E38 E53 E31
Crankshaft to Camshafts Lower Timing Chain - E39 E38 E53 E31 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Iwis - Corporate Logo
T#:14503
Part#: 11311741746
Ships in 1 day
$ 97.72 USD
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$ 97.72 USD
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This is the timing chain that connects the crankshaft to the camshafts. The M62 V8 engine is known for issues with the timing system. Replace the timing chain on your BMW with this OEM part. We also recommend replacing guides and tensioners while replacing the chain.

IWIS is a leader in complex engine parts. Using advanced techniques in research and design allows IWIS to offer parts that not only repair but ultimately improve the way your engine runs.

This item fits the following BMWs:
1997-2003 E39 BMW 540i
1996-2001 E38 BMW 740i 740il
1996-1999 E31 BMW 840i 840ci
2000-2003 E53 BMW X5 4.4i X5 4.6is
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Timing Chain - Upper
Timing Chain - Upper
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Iwis - Corporate Logo
T#:362341
Part#: 11311432177
Ships in 3 Business Days
$ 39.68 USD
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$ 39.68 USD
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This is the upper timing chain that connects the 2 camshaft sprockets on cars with the M50, M52, M54, S50 or S52 engines. If you need the lower timing chain that connects the crankshaft to the upper sprocket you can find it  Here . 

IWIS is a leader in complex engine parts. Using advanced techniques in research and design allows IWIS to offer parts that not only repair but ultimately improve the way your engine runs.

This item fits the following BMWs:
1992-1998  E36 BMW  323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1999-2005  E46 BMW  323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1991-1995  E34 BMW  525i 
1997-2003  E39 BMW  525i 528i 530i 
2004-2005  E60 BMW  525i 530i 
2004-2006  E83 BMW  X3 2.5i X3 3.0i
2000-2006  E53 BMW  X5 3.0i
1997-2002  Z3 BMW  Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
1997-2000  Z3 BMW  Z3 M Roadster M Coupe
2003-2005  E85 BMW  Z4 2.5i Z4 3.0i 
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Supertech 6mm Intake Valve Stem Seal - Polyacrylic - BMW S54 S52 S50 M54 M52 M50 M42
Supertech 6mm Intake Valve Stem Seal - Polyacrylic - BMW S54 S52 S50 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:641011
Part#: VS-VBM6I
In Stock
$ 1.99 USD
Free Shipping on orders $49 and up
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$ 1.99 USD
Free Shipping on orders $49 and up
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Looking to replace your valve stem seals due to leaks, cracks, splits, or even during an upgrade of your camshafts, valve springs, or valves? Supertech valve stem seals are the way to go! This cheap but effective seal replaces the stock BMW seals that are notoriously prone to issues due to heat cycles and chemicals which cause the seals to become weak and brittle. Supertech seals offer a significantly longer life span and are resistant to both heat and chemicals thanks to their use of Viton or Polyacrylic construction (dependant on valve type). That means less time in the garage and more time on the street or track! These seals are also great for anyone who is looking to upgrade to dual valve springs thanks to the seal's overall thinner outer diameter! Guide OD: 8.8mm/.347" Seal OD: 12.2mm/.480"
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Single Groove Valve Keeper 6mm - Priced Each
Single Groove Valve Keeper 6mm - Priced Each
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:3268708
Part#: KPR-6S-7
In Stock
$ 5.99

This product was last offered at the strikethrough price on
03-04-2026

$ 2.99 USD
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$ 2.99 USD
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Two required per valve, for use with certain supertech valves 6.0mm single groove
Supertech 6mm Exhaust Valve Stem Seal - Viton - BMW S54 S52 S50 M54 M52 M50 M42
Supertech 6mm Exhaust Valve Stem Seal - Viton - BMW S54 S52 S50 M54 M...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:641010
Part#: VS-VBM6E
In Stock
$ 1.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 1.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Looking to replace your valve stem seals due to leaks, cracks, splits, or even during an upgrade of your camshafts, valve springs, or valves? Supertech valve stem seals are the way to go! This cheap but effective seal replaces the stock BMW seals that are notoriously prone to issues due to heat cycles and chemicals which cause the seals to become weak and brittle. Supertech seals offer a significantly longer life span and are resistant to both heat and chemicals thanks to their use of Viton or Polyacrylic construction (dependant on valve type). That means less time in the garage and more time on the street or track! These seals are also great for anyone who is looking to upgrade to dual valve springs thanks to the seal's overall thinner outer diameter! Guide OD: 8.8mm/.347" Seal OD: 12.2mm/.480"
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SuperTech Dual Valve Spring Upgrade Kit w/ Steel Retainers - 67lbs - BMW M50 M52 M54 S52
SuperTech Dual Valve Spring Upgrade Kit w/ Steel Retainers - 67lbs - ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:51426477
Part#: SPRKH100DRBMST
In Stock at Vendor
New Item
$ 833.99 USD
Add to Wish List
$ 833.99 USD
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Crafted from premium Superclean Chrome Silicon Vanadium Steel alloy, these valve springs offer exceptional performance and durability even at high RPMs. CAD engineering ensures that the wire stress levels remain within defined limits for long-lasting durability, even under extreme racing conditions. Advanced computer software allows Supertech to meticulously control harmonics, ensuring optimal performance. Manufactured with high-quality military-certified Steel, the retainers are CNC machined to provide a precise fit, guaranteeing longevity and reliability.
Show More Show Less
Valve keeper for Audi/BMW/Opel 6mm stem Triple groove - Supertech
Valve keeper for Audi/BMW/Opel 6mm stem Triple groove - Supertech ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:26704985
Part#: KPR-VW6-T
Ships in 8 Business Days
$ 1.99 USD
Free Shipping on orders $49 and up
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$ 1.99 USD
Free Shipping on orders $49 and up
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