BMW Internal Engine Parts for BMW Z Series E85/6 (2003-2008)

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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 - Corporate Logo
T#:598331
Part#: CR222SV
In Stock
$ 52.00 USD
Free Shipping on orders $49 and up
Introducing King Connecting Rod Bearings for BMW Engines: the ultimate solution for enhancing your engine's performance. Crafted with precision and expertise, King's bearings offer unmatched durability and reliability. Designed to meet the demands of high-performance driving, they provide the stability and support your engine needs. Elevate your BMW driving experience with King Bearings. King Rod Bearings for BMW Engines come in sets of 2 (2 Upper and 2 Lower Bearing Shells) Suitable for 2 Con-Rods. The Upper and Lower bearing shells are comprised of a lead-free, Silver-based tri-metal material designed for extreme load applications. Engineered with meticulous attention to detail, King bearings are designed to exact standards to ensure optimal fitment and compatibility with BMW engines. Experience improved smoother engine operation with King Bearings.
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King - Corporate Logo
T#:597151
Part#: CR222SV0.25
In Stock
$ 52.00 USD
Free Shipping on orders $49 and up

BMW N20 N52 N54 N55 Connecting Rod Bearing Set of 2 Pairs - 0.25mm Oversized provides an exceptional upgrade for enhancing engine performance and reliability. Crafted by King, these bearings are engineered to withstand the rigorous demands of high-performance driving.

  • Premium Quality Construction: Made from lead-free, silver-based tri-metal material, offering superior durability and load-bearing capabilities.
  • 0.25mm Oversized Design: Features an oversized specification to accommodate slight engine wear and ensure a precise fit for optimal performance.
  • Enhanced Engine Stability: Provides exceptional support and stability to the connecting rods, reducing wear and extending engine life.
  • Precision Engineering: Designed to meet exacting standards, ensuring perfect compatibility with BMW N20, N52, N54, and N55 engines.
  • Improved Engine Operation: Delivers smoother and more efficient engine performance, enhancing the overall driving experience.

Turner Motorsport's BMW N20 N52 N54 N55 Connecting Rod Bearing Set of 2 Pairs - 0.25mm Oversized is ideal for those seeking high-quality components to boost engine reliability and performance.

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Kolbenschmidt - Corporate Logo
T#:341713
Part#: 11241284849
In Stock
$ 77.11

This product was last offered at the strikethrough price on
02-20-2026

$ 67.99 USD
Free Shipping on orders $49 and up
$ 67.99 USD
Free Shipping on orders $49 and up
Standard bore - 45mm Set of 8 connecting rod bearings for 4 cylinders/connecting rods. 6cyl, V8, & V12 engines will require additional sets to overhaul all connecting rod bearings.

King - Corporate Logo
T#:599337
Part#: MB7776SI
In Stock
$ 79.99 USD
Free Shipping
$ 79.99 USD
Free Shipping
Introducing King Main Bearings for BMW Engines: the ultimate solution for enhancing your engine's performance. Crafted with precision and expertise, King's bearings offer unmatched durability and reliability. Designed to meet the demands of high-performance driving, they provide the stability and support your engine needs. Elevate your BMW driving experience with King Bearings. Complete Set: King Main Bearings for BMW Engines come as a full set. Silicon-aluminum Bi-Metal Construction: Crafted from King's premium Silicon-aluminum bi-metal material offering exceptional strength, durability, and heat resistance. Precision Engineering: Engineered with meticulous attention to detail, our bearings are designed to exacting standards to ensure optimal fitment and compatibility with BMW engines. Enhanced Performance: Experience improved engine stability and smoother operation with King Bearings.
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Kolbenschmidt - Corporate Logo
T#:12919
Part#: 11211706847
In Stock
$ 110.29 USD
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$ 110.29 USD
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These are the "Yellow" main bearing shells for many BMW 4 and 6 cylinder engines. The size is 60.00mm. Set includes bearings for 6 cylinder cars. 4 cylinder cars get 2 spare bearing sets.

KS Kolbenshmidt designs and produces internal parts for gasoline and diesel engines and is an OEM choice for many automakers. Both increased power handling and reduced fuel consumption are the motivating factors behind this company and they continue to innovate every day.

This item fits the following BMWs:
1990-1991 E30 BMW 318i 318is 318ic
1984-1991 E30 BMW 325e 325es 325i 325ic 325is 325ix
1992-1998 E36 BMW 318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3
1989-1990 E34 BMW 525i
1997-2003 E39 BMW 525i 528i 530i
2004-2005 E60 BMW 525i 530i
2000-2006 E53 BMW X5 3.0i
2004-2006 E83 BMW X3 2.5i X3 3.0i
1997-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Roadster M Coupe
2003-2006 E85 BMW Z4 2.5i Z4 3.0i - M54
2006-2008 E85 BMW Z4 M Roadster M Coupe
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King - Corporate Logo
T#:3929159
Part#: CR222SV0.5
In Stock at Vendor
$ 52.00

This product was last offered at the strikethrough price on
05-03-2026

$ 48.99 USD
Free Shipping on orders $49 and up
$ 48.99 USD
Free Shipping on orders $49 and up

BMW N20 N52 N54 N55 S55 Connecting Rod Bearing Set of 2 Pairs - 0.50mm Oversized is designed to elevate your engine’s performance and reliability. Developed with high-performance driving in mind, this connecting rod bearing set from Turner Motorsport offers superior durability and support. Each set includes 2 upper and 2 lower bearing shells, crafted from a lead-free, silver-based tri-metal material that is specifically engineered for extreme load applications. These bearings are meticulously designed to meet exact standards, ensuring optimal fitment and compatibility with your BMW engine, resulting in smoother and more reliable operation.

  • Enhanced Engine Performance: Provides superior support and stability for high-performance driving.
  • Durable Construction: Lead-free, silver-based tri-metal material designed for extreme loads.
  • Precise Fitment: Engineered to exact standards for compatibility with BMW N20, N52, N54, N55, and S55 engines.
  • Improved Reliability: Ensures smoother engine operation and reduced wear over time.
  • Complete Set: Includes 2 upper and 2 lower bearing shells for 2 connecting rods.
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King - Corporate Logo
T#:597154
Part#: MB7776SI0.25
In Stock
$ 118.99 USD
Free Shipping
$ 118.99 USD
Free Shipping
Introducing King Main Bearings for BMW Engines: the ultimate solution for enhancing your engine's performance. Crafted with precision and expertise, King's bearings offer unmatched durability and reliability. Designed to meet the demands of high-performance driving, they provide the stability and support your engine needs. Elevate your BMW driving experience with King Bearings. Complete Set: King Main Bearings for BMW Engines come as a full set. Silicon-aluminum Bi-Metal Construction: Crafted from King's premium Silicon-aluminum bi-metal material offering exceptional strength, durability, and heat resistance. Precision Engineering: Engineered with meticulous attention to detail, our bearings are designed to exacting standards to ensure optimal fitment and compatibility with BMW engines. Enhanced Performance: Experience improved engine stability and smoother operation with King Bearings.
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King - Corporate Logo
T#:4840521
Part#: CR222SV0.75
In Stock
$ 33.99

This product was last offered at the strikethrough price on
03-20-2026

$ 32.79 USD
Free Shipping on orders $49 and up
$ 32.79 USD
Free Shipping on orders $49 and up
Introducing King Connecting Rod Bearings for BMW Engines: the ultimate solution for enhancing your engine's performance. Crafted with precision and expertise, King's bearings offer unmatched durability and reliability. Designed to meet the demands of high-performance driving, they provide the stability and support your engine needs. Elevate your BMW driving experience with King Bearings. King Rod Bearings for BMW Engines come in sets of 2 (2 Upper and 2 Lower Bearing Shells) Suitable for 2 Con-Rods. The Upper and Lower bearing shells are comprised of a lead-free, Silver-based tri-metal material designed for extreme load applications. Engineered with meticulous attention to detail, King bearings are designed to exact standards to ensure optimal fitment and compatibility with BMW engines. Experience improved smoother engine operation with King Bearings.
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Iwis - Corporate Logo
T#:14529
Part#: 11417576915
In Stock
$ 45.89 USD
Free Shipping on orders $49 and up
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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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
Free Shipping
$ 148.99 USD
Free Shipping
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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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
Free Shipping on orders $49 and up
$ 79.99 USD
Free Shipping on orders $49 and up
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.


King - Corporate Logo
T#:25706094
Part#: CR222GPC
In Stock
$ 96.99 USD
Free Shipping on orders $49 and up
$ 96.99 USD
Free Shipping on orders $49 and up
King's Racing Line of Performance Engine Bearings are for enthusiasts looking for an upgraded, coated connecting rod bearing to replace their OE bearings with. Constructed of a Silver base, these bearings are coated in a polymer-based coating to create a thermal barrier between your connecting rods and crankshaft. This kit includes a full set of bearing shells!
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Iwis - Corporate Logo
T#:34869
Part#: 11411401399
In Stock
$ 30.99

This product was last offered at the strikethrough price on
06-19-2026

$ 29.99 USD
Free Shipping on orders $49 and up
$ 29.99 USD
Free Shipping on orders $49 and up
This is an OEM oil pump chain for BMW's with the S54 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:
2001-2006 E46 BMW M3
2001-2002 Z3 BMW M Roadster M Coupe
2006-2008 E85 BMW Z4 M Roadster M Coupe
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King - Corporate Logo
T#:25706102
Part#: CR222GPC026
In Stock
$ 101.99 USD
Free Shipping on orders $49 and up
$ 101.99 USD
Free Shipping on orders $49 and up
King's Racing Line of Performance Engine Bearings are for enthusiasts looking for an upgraded, coated connecting rod bearing to replace their OE bearings with. Constructed of a Silver base, these bearings are coated in a polymer-based coating to create a thermal barrier between your connecting rods and crankshaft. Set of 4 Bearing Shells - .026 Oversize
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VAC Motorsports - Corporate Logo
T#:7164819
Part#: VAC-HPRBS-S54
Ships on Aug 7, 2026
$ 479.99 USD
Free Shipping
$ 479.99 USD
Free Shipping

BMW S54 VAC Performance Coated Rod Bearing Kit is highly regarded by BMW engine builders worldwide for its superior quality and performance. Ideal for both forced induction and naturally aspirated builds, these coated bearings are designed to be friction-resistant, reducing the risk of thermal breakdowns due to inadequate lubrication. This feature significantly decreases the chances of premature engine failure in street cars and minimizes the risk of spun bearings during high-stress track conditions.

The VAC Performance Coated Rod Bearing Kit is proven to help maintain engine reliability, even in situations with reduced oil pressure.

  • Enhanced Durability: Coated bearings are friction-resistant, reducing the risk of thermal breakdown.
  • Increased Reliability: Helps prevent premature engine failure and spun bearings under stress.
  • Versatile Performance: Suitable for both forced induction and naturally aspirated engine builds.
  • Proven Track Record: Tested by customers to ensure reliable performance even with oil pressure loss.

VAC Tech Notes:

  • Ensure proper tolerance and size checks before installation.
  • Professional installation is recommended due to specialized tools required.
  • Returns are not available on any engine bearings.
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King - Corporate Logo
T#:25706104
Part#: MB7776SI0.5
In Stock
$ 118.99

This product was last offered at the strikethrough price on
05-03-2026

$ 94.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 118.99

This product was last offered at the strikethrough price on
05-03-2026

$ 94.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
Introducing King Main Bearings for BMW Engines: the ultimate solution for enhancing your engine's performance. Crafted with precision and expertise, King's bearings offer unmatched durability and reliability. Designed to meet the demands of high-performance driving, they provide the stability and support your engine needs. Elevate your BMW driving experience with King Bearings. Complete Set: King Main Bearings for BMW Engines come as a full set. Silicon-aluminum Bi-Metal Construction: Crafted from King's premium Silicon-aluminum bi-metal material offering exceptional strength, durability, and heat resistance. Precision Engineering: Engineered with meticulous attention to detail, our bearings are designed to exacting standards to ensure optimal fitment and compatibility with BMW engines. Enhanced Performance: Experience improved engine stability and smoother operation with King Bearings.
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King - Corporate Logo
T#:16707423
Part#: CR6877XP
In Stock at Vendor
$ 300.99 USD
Free Shipping on orders $49 and up
King's Racing Line of Performance Engine Bearings are for enthusiasts looking for an upgraded, coated connecting rod bearing to replace their OE bearings with. Constructed of a Silver base, these bearings are coated in a polymer-based coating to create a thermal barrier between your connecting rods and crankshaft. Complete Set of Bearing Shells
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Iwis - Corporate Logo
T#:362341
Part#: 11311432177
Ships in 3 Business Days
$ 39.68 USD
Free Shipping on orders $49 and up
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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King - Corporate Logo
T#:25706120
Part#: MB7039AM0.25
Ships in 6 Business Days
$ 178.99 USD
Free Shipping on orders $49 and up
Replace your worn out OE main bearings with King's .25 Oversize Performance S54 Main Bearing Set!

Kolbenschmidt - Corporate Logo
T#:31092510
Part#: 11367583208
Special Order: No Guaranteed ETA
$ 103.99

This product was last offered at the strikethrough price on
03-31-2026

$ 94.99 USD
Free Shipping on orders $49 and up
$ 94.99 USD
Free Shipping on orders $49 and up
This timing chain camshaft gear is the thicker gear located toward the front of the engine on the end of the exhaust camshaft. This is sometimes changed when replacing the timing chain. BMW # 11367578877 may also be required when servicing this part.
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Kolbenschmidt - Corporate Logo
T#:31092509
Part#: 11367583207
Special Order: No Guaranteed ETA
$ 103.99

This product was last offered at the strikethrough price on
03-31-2026

$ 94.99 USD
Free Shipping on orders $49 and up
$ 94.99 USD
Free Shipping on orders $49 and up
This timing chain camshaft gear is the thicker gear located toward the front of the engine on the end of the intake camshaft. This is sometimes changed when replacing the timing chain. BMW # 11367578877 may also be required when servicing this part.
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Ina - Corporate Logo
T#:42301980
Part#: ZC0255
Ships in 2 Business Days
$ 41.99 USD
Free Shipping on orders $49 and up
Preserve the performance and longevity of your BMW with the OEM INA Engine Timing Chain. Timing chains stretch over time causing sluggish performance, a check engine light or even a misfire. Replace yours today!
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Ina - Corporate Logo
T#:596290
Part#: 11337605330
In Stock
$ 9.99 USD
Free Shipping on orders $49 and up
If your BMW has noisy or stuck lifters, replace them to improve performance and stop the annoying chatter
Kolbenschmidt - Corporate Logo
T#:4744851
Part#: 11241278209
Ships in 6 Business Days
$ 18.99

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

$ 17.30 USD
Free Shipping on orders $49 and up
$ 17.30 USD
Free Shipping on orders $49 and up
Recommended to be replaced anytime engine is being overhauled.
OEM Ina Intake Hydraulic Tappet - BMW N52 N54 N55 N20 S55
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:591661
Part#: 11337548690
In Stock
$ 15.99 USD
Free Shipping on orders $49 and up
Hydraulic valve lifter

OEM INA Hydraulic Lifter - BMW M5X S5X M62 S62
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:360996
Part#: 11321748884
In Stock
$ 19.99 USD
Free Shipping on orders $49 and up
Stock replacement hydraulic valve lifter for the M52, M54 and S50 S52 engines. These lifter buckets can last 150,000+ miles but then they no longer fit on the valve stem correctly and a ticking or knocking noise can result. If the lifter is no longer seated correctly, it can lead to the valve not opening correctly. Replacement is straight-forward but requires special tools for working with the camshafts. This item fits the following BMWs:
1995-1998 E36 BMW 323is 323ic 328i 328is 328ic M3
1997-2003 E39 BMW 525i 528i 530i M5
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
2004-2005 E60 BMW 525i 530i
2004-2005 E83 BMW X3 2.5i X3 3.0i
2000-2006 E53 BMW X5 3.0i
1996-2002 E36/7 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
1998-2000 E36/7 BMW M Roadster M Coupe
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King - Corporate Logo
T#:25706111
Part#: CR6877XP0.25
In Stock at Vendor
$ 300.99 USD
Free Shipping on orders $49 and up
King's Racing Line of Performance Engine Bearings are for enthusiasts looking for an upgraded, coated connecting rod bearing to replace their OE bearings with. Constructed of a tri-metal base, these bearings are coated in a polymer-based coating to create a thermal barrier between your connecting rods and crankshaft. Complete Set of Bearing Shells - .025 Oversize
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Ina - Corporate Logo
T#:41492602
Part#: 11337559797
In Stock
$ 22.99 USD
Free Shipping on orders $49 and up
$ 22.99 USD
Free Shipping on orders $49 and up
Rocker arms work in conjunction with your camshafts and valves, applying pressure from the camshaft to open and close your intake and exhaust valves. If your rocker arm rollers have failed, this can lead to extreme camshaft damage, requiring the camshaft to be replaced. Replace your rockers whenever servicing your camshafts or replacing your hydraulic lifters to ensure long-term engine reliability.
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VAC Motorsports - Corporate Logo
T#:26038609
Part#: JE-FPS-M54
Ships on Aug 7, 2026
$ 1,399.99 USD
Free Shipping on orders $49 and up
Ina - Corporate Logo
T#:42301987
Part#: ZC0128
Back Ordered
$ 13.99 USD
Free Shipping on orders $49 and up
Keep your BMW’s heart pumping strong, use the INA Oil Pump Chain to replace your stetched and worn out oil pump chain to ensure your engines oiling system is operating at peak performance.