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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ARP Connecting Rod Bolt Kit - M52, M54B30, N20, N26, N54, N55, B46, B...

T#:3315

Part#: 201-6303

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$ 212.99 USD

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$ 212.99 USD

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Set of 12 ProSeries connecting rod bolts, made by ARP -- the world leader in fastener technology. Each bolt is made of ARP2000 material, which exceeds the strength of 8740 Chrome Moly, and is able to achieve clamp load at 220,000psi. ARP2000 fasteners are used widely in motorsport and drag racing as an upgrade from 8740 Chrome Moly in both steel and aluminum rods. These are simply the best connecting rod bolts available, making them ideal for ultra high performance, racing and forced induction applications.

This set replaces the 47mm length factory BMW rod bolts with part number 11-24-7-589-671 (11247589671) Check applications before ordering! Opened ARP bolt kits are not
returnable.

ARP is a company that prides itself on performance and durability, no matter the application. Offering the finest engine hardware money can buy is the driving initiative at ARP and this is evidenced by the staggering amount of satisfied customers and race teams the world over.

This item fits the following BMWs:
1999-2005 E46 BMW 328i 328ci 330i 330ci 330xi
2001-2003 E39 BMW 530i
2004-2005 E60 BMW 530i
2004-2006 E83 BMW X3 3.0i
2000-2006 E53 BMW X5 3.0i
1997-2002 Z3 BMW Z3 3.0i
2003-2005 Z4 BMW Z4 3.0i

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ARP Connecting Rod Bolt Kit for E46 M3, MZ3 (M11 Size)

T#:2211

Part#: 201-6103

In Stock

$ 215.99 USD

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$ 215.99 USD

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Set of 12 ProSeries connecting rod bolts, made by ARP -- the world leader in fastener technology. Each bolt is made of ARP2000 material, which exceeds the strength of 8740 Chrome Moly, and is able to achieve clamp load at 220,000psi. ARP2000 fasteners are used widely in motorsport and drag racing as an upgrade from 8740 Chrome Moly in both steel and aluminum rods. These are simply the best connecting rod bolts available, making them ideal for ultra high performance, racing and forced induction applications.

These bolts are M11 size to replace the stock M11 BMW bolt part number 11-24-7-834-310 (11247834310). The M11 bolt size was used in S54 engines up to 2/2003 production. However, most S54 engines up to that point had their rod bearings replaced under a factory recall and some may have had new connecting rods installed at the same time (or even a new engine altogether). The new bolts installed in these earlier engines are M10 size. Unfortunately, there is no way of knowing which rod or bolt is currently in your car (unless your car came with service records detailing when and what was replaced). The only sure way to know is to check the bolts currently installed in your engine. If yours was updated to the M10 sized bolt, use ARP kit #201-6102 . ARP bolts are not returnable if the pacakge has been open.

ARP is a company that prides itself on performance and durability, no matter the application. Offering the finest engine hardware money can buy is the driving initiative at ARP and this is evidenced by the staggering amount of satisfied customers and race teams the world over.

These ARP connecting rod bolts fit the following BMWs:
2001-2/2003 E46 M3 coupe / convertible
2001-2002 MZ3 M Roadster & M Coupe

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ARP S54 Head Stud Kit (E46M3 / MZ3 / MZ4)

T#:3631

Part#: 201-4303

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$ 247.99 USD

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$ 247.99 USD

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Virtually every top professional BMW engine builder relies on ARP Pro Series head studs, particularly on the S54 3.2 liter engine. ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality. Each stud is heat-treated to 200,000 psi, ensuring complete heat penetration. ARP studs are threaded after heat-treat, which gives them 1000% (that's ten times!) better fatigue strength than studs threaded prior to heat-treat. Threading the studs after heat-treating is more difficult and costly (as it's harder on tooling) but the results are well worth the effort. These simply are the best S54 head studs we've found for the E46 M3 6 cylinder engines, and we highly recommend them in both the racing and forced induction arena. (Due to the additional clamping force between the head and block, these are IDEAL for turbo charging and supercharging!)

Converting from the factory BMW head bolts to head studs makes it much easier to assemble an engine, especially a racing powerplant which must be serviced frequently (and quickly!), and also ensures proper alignment of the head and gasket. Head studs also provide more accurate and consistent torque loading. Here's why: When you use bolts to secure the head, the fastener is actually being "twisted" while it's being torqued to the proper reading. Accordingly, the bolt is reacting to two different forces simultaneously. A head stud should be installed in a "relaxed" mode -- never crank it in tightly using a jammed nut. If everything is right, the stud should be installed finger tight. Then, when applying torque to the nut, the stud will stretch only on the vertical axis. An information sheet is provided with each set. Kit includes everything pictured -- 14 head bolts, washers, bolts and assembly lubricant.

ARP is a company that prides itself on performance and durability, no matter the application. Offering the finest engine hardware money can buy is the driving initiative at ARP and this is evidenced by the staggering amount of satisfied customers and race teams the world over.

These head studs fit the following BMWs/engines
2001-2006 E46 M3 coupe & convertible
2001-2002 MZ3 M Roadster & M Coupe (with S54 engine)
2006-2008 MZ4 Z4 M Roadster & M Coupe

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Bav Auto Crankshaft Front Oil Seal Removal / Installer Tool - N54, N5...

10X Entries Into Our F80 M3 Sweepstakes

T#:580444

Part#: B8800139

In Stock

Sale - Save 5% $ 203.99

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

$ 193.79 USD

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Sale - Save 5%

$ 203.99

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

$ 193.79 USD

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Used in removal and installation of the front crankshaft seal on BMW N55 engines, a common job that you can save yourself a ton of money doing at home.

Bav Auto Crankshaft Rear Oil Seal Removal / Installer Tool - N51, N52...

10X Entries Into Our F80 M3 Sweepstakes

T#:580412

Part#: B8800104

In Stock

Sale - Save 5% $ 147.99

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

$ 140.59 USD

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Sale - Save 5%

$ 147.99

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

$ 140.59 USD

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For removal and installation of the rear crankshaft seal on BMW N51, N52 and N54 engines.

Bav Auto Crankshaft Pulley Holding Tool

10X Entries Into Our F80 M3 Sweepstakes

T#:580404

Part#: B8800094

Ships on Dec 29, 2026

Sale - Save 8% $ 180.99

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

$ 166.49 USD

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Qty

Sale - Save 8%

$ 180.99

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

$ 166.49 USD

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Bav Auto's Crankshaft Pulley Holding Tool enables you to remove your crankshaft nut/bolt with ease - we recommend this tool if you intend on replacing timing chains, oil pump chains, leaking crankshaft seals, etc.

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Bav Auto Intermediate Lever Valve Spring Compressor - N20/26 N55 ...

10X Entries Into Our F80 M3 Sweepstakes

T#:580431

Part#: B8800124

In Stock

Sale - Save 15% $ 178.99

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

$ 152.14 USD

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Qty

Sale - Save 15%

$ 178.99

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

$ 152.14 USD

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For installation and removal of pressure springs on intermediate levers of valve train. Ensures quick, easy and safe handling of these high force springs.

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

Sub-Categories

ARP Connecting Rod Bolt Kit - M52, M54B30, N20, N26, N54, N55, B46, B...

ARP Connecting Rod Bolt Kit for E46 M3, MZ3 (M11 Size)

ARP S54 Head Stud Kit (E46M3 / MZ3 / MZ4)

Bav Auto Crankshaft Front Oil Seal Removal / Installer Tool - N54, N5...

Bav Auto Crankshaft Rear Oil Seal Removal / Installer Tool - N51, N52...

Bav Auto Crankshaft Pulley Holding Tool

Bav Auto Intermediate Lever Valve Spring Compressor - N20/26 N55 ...

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