BMW Internal Engine Parts for BMW E21 320i M10 1.8L

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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 - M10 1.8L
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ARP - Corporate Logo
T#:554123
Part#: 201-6304
Ships on Jul 21, 2026
$ 119.99 USD
Free Shipping
$ 119.99 USD
Free Shipping

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.

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 BMW Engines: 
M10 1.8L

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ARP Ultra-Torque Fastener Assembly Lubricant (Select Your Size) ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ARP - Corporate Logo
T#:338571
Part#: TMS1733
In Stock
Starting at $ 1.99 USD
Free Shipping on orders $49 and up
Starting at $ 1.99 USD
Free Shipping on orders $49 and up
If you are using a premium fastener, such as the ARP brand rod bolts, head bolts, or main bolts, then you will want this assembly lube. Made to be used to precisely duplicate all ARP fastener preload specifications.
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Timing Chain - E30 E32 E34
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Iwis - Corporate Logo
T#:4468
Part#: 11311716986
In Stock at Vendor
$ 47.18

This product was last offered at the strikethrough price on
01-12-2026

$ 47.17 USD
Free Shipping on orders $49 and up
$ 47.17 USD
Free Shipping on orders $49 and up
This single row timing chain is used on many BMW's from 1979 on. If you are rebuilding your engine we recommend replacing the timing 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:
1979-1983 E21 BMW 320i 323i
1984-1985 E30 BMW 318i
1979-1981 E12 BMW 528i 530i
1985-1988 E28 BMW 533i 535i 535is
1989-1995 E34 BMW 535i
1979-1989 E24 BMW 633csi 635csi
1979-1987 E23 BMW 733i 735i
1988-1993 E32 BMW 735i 735il
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Timing Chain - Single Row
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Iwis - Corporate Logo
T#:578660
Part#: 11311716987
In Stock at Vendor
$ 62.99

This product was last offered at the strikethrough price on
05-07-2026

$ 60.99 USD
Free Shipping on orders $49 and up
$ 60.99 USD
Free Shipping on orders $49 and up
The timing chain in any vehicle can begin to stretch and rattle over time. This is a common issue, and though BMW says it is a lifetime part, most enthusiasts decide to change them. If you need only the timing chain instead of a kit, ECS Tuning has your replacement. This is a direct fit replacement for any broken or stretched chain. A great replacement to a damaged chain or one that may have been misplaced out of a timing belt kit.
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