BMW Engine Parts for BMW 3 Series E30 (1984-1991)

OEM Rear Main/Crankshaft Seal Kit E28, E30, E34, E36, E39, Z4 ...

T#:42099850

Part#: 11142247867TKT

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$ 45.99 USD

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Protect your BMW engine and drivetrain with the OE Rear Main/Crankshaft Seal Kit, a critical upgrade for leak-free performance and longevity.

BMW M20 Engine ARP Head Stud Kit - E30 325i, E34 525i

T#:189783

Part#: 201-4305

In Stock

$ 271.99

This product was last offered at the strikethrough price on
07-10-2026

$ 271.18 USD

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Virtually every top professional BMW engine builder relies on ARP Pro Series head studs. 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 head studs we've found and we highly recommend them in both racing and forced induction applications. Due to the additional clamping force between the head and block, these are IDEAL for turbocharged engines.

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.

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:
1985-1991 E30 BMW 325e 325es 325i 325ic 325is 325ix
1989-1990 E34 BMW 525i

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E36 M3 S50 Timing Chain Tensioner. Upgrade for E24 M6, E28 M5, E30 M3...

T#:337971

Part#: 11311405081

Ships in 3 Business Days

Starting at $ 113.17 USD

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Starting at $ 113.17 USD

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The timing chain tensioner from the 1995 E36 M3 is a great upgrade for other Motorsport models - 1988-1991 E30 M3 and 1989-1995 E34 M5! This tensioner virtually eliminates the cold start-up engine rattle so common with the S14 and S38 engines. It makes the whole engine quieter and smoother. Any new tensioner will accomplish that but the S50 tensioner has several new features that make it superior to the original design. This unit also has a internally loaded spring, so installation is much easier than the old style tensioner (no need to squeeze the spring and hold it while installing). Includes oil seal ring (not pictured).

This item fits the following BMWs:
1985-1989 E24 BMW M635CSi M6 - M88/3, S38B35 engine
1988 E28 BMW M5 - M88/3, S38B35 engine
1988-1991 E30 BMW M3 - S14 engine
1989-1995 E34 BMW M5 - S38 engine
1995 E36 BMW M3 - S50B30US engine
1994-1999 E36 BMW M3 Euro - S50B30 and S50B32 engines

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Rein Piston Ring - Priced Per Piston - E28, E30, E34, E36

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T#:379806

Part#: 11251713192

Ships in 2 Business Days

$ 30.99 USD

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For use on stock pistons, will need 6 sets to replace all piston rings in the engine

Rein Piston Ring Set - Priced Per Piston

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T#:592811

Part#: 11251713178

Ships in 3 Business Days

$ 28.99 USD

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Replace your worn rings - 84.000mm

OEM Accessory Belt Service Kit - E30 M20

T#:554430

Part#: 64521706826KT1

In Stock

$ 201.62

This product was last offered at the strikethrough price on
05-26-2026

$ 194.08 USD

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Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or over heated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.

Fits the following BMWs:
1984-1991 E30 BWM 325, 325i/is/ix, 325e/es

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BMW M42 M50 M52 M54 6mm Single Groove Valve Keeper - Set Of 24 ...

T#:21604313

Part#: KPR-6S-7-24

Ships in 6 Business Days

$ 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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BMW S14 Engine ARP Head Stud Kit - E30 M3

T#:189786

Part#: 201-4605

In Stock at Vendor

$ 160.99 USD

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Virtually every top professional BMW engine builder relies on ARP Pro Series head studs. 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 head studs we've found and we highly recommend them in both racing and forced induction applications. Due to the additional clamping force between the head and block, these are IDEAL for turbocharged engines.

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.

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:
1987-1991 E30 BMW M3

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ARP Main Stud Kit for E30 M3 S14 Engine

T#:2207

Part#: 201-5001

In Stock

$ 119.99 USD

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This ARP main stud set for the E30 M3 eliminates main cap walk and fretting, as well as protects the threads in your engine block. Each S14 main stud is made using the best materials, process, design and engineering, which exceeds even the most stringent racing and aerospace specifications. This main stud kit includes hardened parallel-ground washers and aerospace quality nuts.

The studs are manufactured from 8740 chrome moly steel, heat-treated in-house to 190,000 psi tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 1000% stronger than others. On the E30 M3, there's no reason to settle for anything less than the best, which is why we carry and use ARP fasteners and studs on our own BMW race cars.

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 ARP main stud kit fits the following BMWs:
1988-1991 E30 M3 - S14 engine
1984-1985 E30 318i (M10)

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E30 M3 Lower Oil Pan Gasket

T#:337965

Part#: 11131727983

In Stock

Starting at $ 32.99 USD

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Starting at $ 32.99 USD

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E30 M3 Lower Oil Pan Gasket. Have a leaky oil pan? It may be failed oil pan gaskets (either upper or lower). This is the lower oil pan gasket for the S14 engine. We offer this gasket in both cork and paper gasket media.

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ARP Connecting Rod Bolt Kit for E30 M3 2.3 liter

T#:2187

Part#: 201-6104

In Stock at Vendor

$ 175.99 USD

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Set of 8 Pro-Series connecting rod bolts, made by ARP -- the world leader in fastener technology. ARP Pro Series connecting rod bolts are precision CNC-machined to exacting specifications and designed for optimum reliability. Heat-treated with threads which are rolled to provide up to ten times more fatigue strength, these rod bolts are far superior to standard OEM BMW fasteners in terms of durability and ability to withstand stresses. This rod bolt set is specifically for the E30 M3 S14 2.3 liter engine.

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.

These ARP connecting rod bolts fit the following BMWs:
1988-1991 E30 M3 - S14 4 cylinder

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Rein Rear Crankshaft Seal - E30, E32, E34, E36, E39, E46, E53, E60, E...

2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:361056

Part#: 11142249533

In Stock at Vendor

$ 22.99 USD

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Replace when doing a clutch job.

OEM Ignition Service Kit - 325e/es 325i/is M20

T#:556733

Part#: E30M20KT

In Stock

Sale - Save 7% $ 376.99

This product was last offered at the strikethrough price on
05-29-2026

$ 351.32 USD

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This product was last offered at the strikethrough price on
05-29-2026

$ 351.32 USD

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Often an oversight in maintenance, ignition components are also susceptible to wear and tear. Spark Plugs can accumulate carbon, reducing the spark intensity and it's ability to properly ignite the air/fuel mixture, leading to misfires and generally declining performance. Other ignition components, such as coils, boots, wires, caps, and rotors, can also wear out over time due to factors like heat and contamination, preventing the current from reaching the spark plug.

To start over fresh with all new components, we now offer these Ignition Service Kits. Each kit comes with brand new OE quality components, replacing any potential fault points in your ignition system for peak performance!

See kit contents below for a complete list of included components.

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Basic Timing Belt Service Kit - BMW E30 E28 E34 M20

T#:20386734

Part#: 11311469240T2KT

In Stock

$ 97.99

This product was last offered at the strikethrough price on
05-17-2026

$ 86.99 USD

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Often overlooked, your timing belt is a crucial component that requires replacement every 60,000 miles. It is common for an unserviced timing belt to snap without warning, leaving you with bent valves and costly repairs. Included in this kit are the following: Continental (OEM) Timing Belt INA (OEM) Tensioner Radiator Drain Plug

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E30 325e/325i Motor Mount

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T#:7085

Part#: 11811132323

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$ 26.99 USD

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These are the stock rubber motor mounts for the E30 M20 engine - 325e and 325i. These are the original spec full rubber mounts. The M20 has a fatal flaw especially when the motor mounts are worn. The engine can shift and contact other things in the engine compartment, mostly cooling-related parts. This is especially troublesome on the 1984-1987 models as the alternator belt and blades can cut into the lower radiator hose. Don't neglect your motor mounts! A worn motor mount allows the engine to twist and shift around. The harder you're driving the more shift will occur. Twisting of the engine can also lead to shifting problems as the transmission twists with it. There are countless issues related to worn or compressed motor mounts so don't overlook these as a regular replacement item (every 50,000 miles).

For more serious track or street cars we recommend our HD motor mount kit with reinforcing cups - click here. These are a stiffer mount to begin with (coming from the Euro 635CSi) and the aluminum cups give additional strength especially for the side-side shearing loads that you get from cornering.

These stock rubber motor mounts are sold per mount .

This item fits the following BMWs:
1984-1991 E30 BMW 325e 325es 325i 325ic 325is

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Timing Belt And Tensioner Package - M20

T#:559281

Part#: M20TBELTKT

In Stock

Sale - Save 11% $ 83.99

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

$ 75.11 USD

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$ 83.99

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

$ 75.11 USD

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OEM Rein Fuel Tank Filler Cap - Multiple BMWs

2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:639082

Part#: 16116750564

Ships in 8 Business Days

$ 25.99 USD

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Replace your damaged or missing non-locking fuel tank cap with this direct replacement cap.

Rein Piston Rings - Set - Single Piston - E30, E36

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T#:591604

Part#: 11251727461

Ships in 3 Business Days

$ 31.99 USD

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$ 31.99 USD

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Replace your worn out piston rings with OE replacements - 84.000mm

BMW Rod Bolt Stretch Gauge with Billet Body & Thumb Hold

T#:4309

Part#: 100-9942

In Stock at Vendor

$ 216.99

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

$ 202.99 USD

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We highly recommend using a stretch gauge when installing rod bolts and other fasteners, where it is possible to measure the length of the fastener.

ARP Main Stud Kit, BMW S14

T#:28537458

Part#: ARP-MSK-S14

Ships in 3 Business Days

$ 119.99 USD

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This ARP Main Stud Kit is designed to replace BMW 11111735525 for the S14 B20, S14B23, S14B25, S14B27 engines found in the E30 M3. One significant advantage of these main studs is their ability to prevent main cap walk, which can occur when the main caps shift or move out of position, potentially causing damage to the engine. In addition, ARP Main Studs can safeguard the threads of your engine block, providing an extra layer of protection against potential damage. When opting for main studs instead of factory bolts, it's important to note that the engine builder should mic the bores. Using studs may require a line hone to ensure proper fitment and alignment. A line hone is a machining process that can be used to resize and reshape the main bearing bores, ensuring that they are perfectly round and concentric. This is crucial for ensuring proper oil clearance and preventing premature bearing wear. By mic'ing the bores and performing a line hone if necessary, engine builders can ensure that the main studs are installed correctly and that the engine will perform reliably and at its best.

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S14 Bottom End Gasket Kit - E30 M3

T#:2587338

Part#: S14BOTTOMENDKT

Ships in 3 Business Days

$ 86.99 USD

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All of the components necessary when servicing the bottom end or rod bearings of your S14 engine.

BMW M10 Engine ARP Head Stud Kit - 2002, E21 320i, E30 318i

T#:189784

Part#: 201-4601

Ships in 8 Business Days

$ 196.99 USD

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$ 196.99 USD

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Virtually every top professional BMW engine builder relies on ARP Pro Series head studs. 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 head studs we've found and we highly recommend them in both racing and forced induction applications. Due to the additional clamping force between the head and block, these are IDEAL for turbocharged engines.

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.

This item fits the following BMWs:
1970-1976 2002 BMW 1600 2002 2002tii
1977-1983 E21 BMW 320i
1984-1985 E30 BMW 318i

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Supertech Upgraded Valve Stem Seal Kit - BMW S14 2.3L

T#:641031

Part#: VS-VW7-S14KT

Ships in 8 Business Days

$ 33.99 USD

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$ 33.99 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: 9.8mm/.385" Seal OD: 13.2mm/.520"

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ARP Connecting Rod Bolt Kit - M10 1.8L

T#:554123

Part#: 201-6304

Ships on Aug 5, 2026

$ 119.99 USD

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$ 119.99 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.

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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BMW E28 / E30 / E43 - M20 Complete Cylinder Head Basic Replacement Ki...

Upgrade to the less restrictive cylinder head found on the M20 2.5L

T#:2810081

Part#: 11121707032-3KT

Ships in 8 Business Days

Sale - Save 1% $ 1,614.99

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

$ 1,600.35 USD

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$ 1,614.99

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Includes all of the necessary components to service and replace the head on your M20 powered BMW

Complete Cylinder Head Basic Replacement Kit M20 2.5L / 2.7L ...

T#:22822554

Part#: E30HEADRPLCKT

Ships in 8 Business Days

$ 1,607.99

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

$ 1,603.31 USD

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Upgrade your BMW M20 2.5L and 2.7L engine with our Complete Cylinder Head Basic Replacement Kit . This kit includes the following essential components:

Cylinder Head Washer
BMW Coolant / Antifreeze - 1 gallon
Copper Exhaust Lock Nut
Oil Filter
Cylinder Head Bolt Set
Engine Oil Drain Plug Washer
Dielectric Spark Plug Boot Protector
BMW TwinPower Turbo 5W-30 Engine Oil
Cylinder Head Gasket
Assembly Lube - 4 oz
Engine Oil Drain Plug
M20 Cylinder Head - complete

Ensure a seamless and efficient replacement process for optimal performance.

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Crankshaft Position Sensor - E30 325e 325i 325is E34 525i

T#:338003

Part#: 12141720852

Ships on Oct 15, 2026

Starting at $ 108.99 USD

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Starting at $ 108.99 USD

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This crank shaft position sensor (CPS) provides the engine computer with engine speed data via the harmonic balancer. It mounts off the engine block and reads the front crank pulley to tell the engine what position the engine internals are in. This sensor is crucial for starting the car as the ECU will not allow the engine to start without this signal. It fits all M20 engines in the E30 and E34. A lot of times the sensor is covered in oil, broken from a spinning belt, or the clearance to the pulley is not correct (should be .040"). Interchangeable with #12141720856.

Brand Options:
Original BMW - more expensive but higher quality and more consistent reliability. The sensor itself has a metal housing that is more durable and will not be affected by heat as much.
Aftermarket/Overseas manufacturer - cheaper than OE BMW but less quality and potentially less consistent. Plastic housing is more susceptible to damage from heat.

This item fits the following BMWs:
1987-1991 E30 BMW 325e 325es 325i 325is 325ix 325ic
1989-1990 E34 BMW 525i

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E24 M6, E28 M5, E30 M3 Evo Cam Gear - BMW Motorsport

T#:337970

Part#: 11311312535

Ships on Sep 17, 2026

$ 360.99

This product was last offered at the strikethrough price on
03-25-2026

Starting at $ 341.99 USD

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Starting at $ 341.99 USD

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The BMW Motorsport Cam Gear retards the exhaust camshaft of the 88-91 M3 and 88-89 M5 and M6. This allows for better exhaust scavenging, which in turn gives a moderate torque increase. This is very useful in day-to-day driving. This cam gear came stock on the EVO2 M3. (+11 lb./ft torque increase at 3000 rpm on M3 and +22 lb./ft on a M5/M6). Kit includes Cam gear and valve cover gaskets. Better acceleration and improved torque for your M5/M6

This item fits the following BMWs:
1988-1991 E30 BMW M3
1988 E28 BMW M5
1987-1989 E24 BMW M6

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OEM Ignition Service Kit - E30 318i/is M42 1.8L

T#:556688

Part#: E30M42TISKT

Back Ordered

$ 473.99

This product was last offered at the strikethrough price on
01-23-2026

$ 451.99 USD

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$ 451.99 USD

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Often an oversight in maintenance, ignition components are also susceptible to wear and tear. Spark Plugs can accumulate carbon, reducing the spark intensity and it's ability to properly ignite the air/fuel mixture, leading to misfires and generally declining performance. Other ignition components, such as coils, boots, wires, caps, and rotors, can also wear out over time due to factors like heat and contamination, preventing the current from reaching the spark plug.

To start over fresh with all new components, we now offer these Ignition Service Kits. Each kit comes with brand new OE quality components, replacing any potential fault points in your ignition system for peak performance!

See kit contents below for a complete list of included components.

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Performance Timing Belt Kit - from 09/1987

T#:401679

Part#: M20_11KT1

Ships in 1 Business Day

$ 291.99

This product was last offered at the strikethrough price on
06-29-2026

$ 267.99 USD

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$ 267.99 USD

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The timing belt on the M20 engine should be replaced every 50,000 miles. The Gates Racing's timing belt this kit includes is constructed of HNBR elastomeric composites. That being said, they are 300% stronger than the OE belt & deliver up to three times the heat resistance. Also included in this kit are the following:

Gates Racing Timing Belt
Tensioner
Tensioner Spring and Bolt
Water Pump & Gasket
Thermostat & Gasket
Camshaft Seal
1 Liter of Coolant
Radiator Drain Plug

This kit includes sufficient coolant for a water pump replacement. If you intend to perform additional cooling system maintenance, pick yourself up an additional bottle of coolant.

For vehicles with production date from 09/1987.For vehicles with production date from 09/1987.

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Performance Timing Belt Kit - up to 09/1987

T#:401678

Part#: M20_11KT

In Stock

Sale - Save 8% $ 290.99

This product was last offered at the strikethrough price on
04-16-2026

$ 267.63 USD

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Qty

Sale - Save 8%

$ 290.99

This product was last offered at the strikethrough price on
04-16-2026

$ 267.63 USD

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The timing belt on the M20 engine should be replaced every 50,000 miles. The Gates Racing's timing belt this kit includes is constructed of HNBR elastomeric composites. That being said, they are 300% stronger than the OE belt & deliver up to three times the heat resistance. Also included in this kit are the following:

Gates Racing Timing Belt
Tensioner
Tensioner Spring and Bolt
Water Pump & Gasket
Thermostat & Gasket
Camshaft Seal
1 Liter of Coolant
Radiator Drain Plug

This kit includes sufficient coolant for a water pump replacement. If you intend to perform additional cooling system maintenance, pick yourself up an additional bottle of coolant.

For vehicles with production date up to 09/1987.

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OEM Accessory Belt Kit Service Kit - E30 318is M42

T#:554408

Part#: E30318ISBELTKT

Back Ordered

$ 205.99 USD

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$ 205.99 USD

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Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or over heated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.

Fits the following BMWs:
1989-1991 E30 BWM 318is

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Rein Exhaust Valve - Sold Each - E28, E30, E34

For vehicles with production date from 12/1986

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T#:584424

Part#: 11341708896

In Stock

Sale - Save 9% $ 18.35

This product was last offered at the strikethrough price on
05-14-2026

$ 16.65 USD

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Sale - Save 9%

$ 18.35

This product was last offered at the strikethrough price on
05-14-2026

$ 16.65 USD

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Replace your worn valves

OEM Rein Oil Cooler Line O-Ring - Multiple BMWs

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T#:15159

Part#: 17222245358

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$ 4.99 USD

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$ 4.99 USD

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This is the sealing o-ring used for many oil cooler kits on various BMW models. They're also a prime source for oil leaks because the o-ring gets 'flat' or shrinks or becomes damaged. These are usually easy to change though which puts an end to annoying small oil leaks.

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Rein O-Ring - E28, E30, E34

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T#:6693

Part#: 11151714390

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$ 6.99 USD

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$ 6.99 USD

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OEM BMW ENGINE O-RING 11151714390

Single Groove Valve Keeper 6mm - Priced Each

T#:3268708

Part#: KPR-6S-7

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$ 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

Rein Oversize Valve Guide

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T#:379717

Part#: 11121735533

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$ 9.67 USD

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$ 9.67 USD

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12.7mm (+0.2mm)

Oil Drain Plug

T#:41188174

Part#: 11137535106TKT

In Stock

Sale - Save 29% $ 8.99

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

$ 6.35 USD

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Sale - Save 29%

$ 8.99

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

$ 6.35 USD

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Includes a one time use crush washer.

ARP Ultra-Torque Fastener Assembly Lubricant (Select Your Size) ...

T#:338571

Part#: TMS1733

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Starting at $ 1.99 USD

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Starting at $ 1.99 USD

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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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Rein o-ring - E30, E34

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T#:379686

Part#: 12611277602

Ships in 3 Business Days

$ 7.13 USD

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$ 7.13 USD

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42x3. Found in the oil pan.

OEM Rein Rocker Arm Shaft Plug - E28 E30 E34

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T#:583592

Part#: 11331264519

In Stock at Vendor

$ 6.11 USD

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$ 6.11 USD

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This is an OEM Rein replacement rocker arm shaft plug, also referred to by BMW as a Blind Plug. This plug connects to the end of the rocker arm shafts. 4 required per vehicle. Replace your old plugs to keep everything properly sealed.

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Rein Front Camshaft Seal - E28, E30, E34

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T#:379646

Part#: 11121285609

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$ 11.99 USD

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$ 11.99 USD

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Found in lower timing cover

Rein Fuel Injector O-Ring - E23, E24, E28, E30, E31, E32, E34, E36, E...

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T#:362382

Part#: 13641730767

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$ 6.17 USD

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$ 6.17 USD

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Located on nozzle end of injector

ARP Head Stud Kit, BMW S14

T#:28537451

Part#: ARP-HSK-S14

Ships in 3 Business Days

$ 179.99 USD

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$ 179.99 USD

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This ARP head stud Kit is designed for the BMW S14 B20, S14B23, S14B25, S14B27 engines found in the E30 M3. Installing ARP head studs can provide several benefits, including increased clamping force, improved head gasket sealing, and greater overall engine strength. This is especially important in high-performance and racing applications where the engine is subjected to increased stress and higher temperatures. Before installing ARP head studs, it is important to properly clean and prepare the engine block and cylinder head mating surfaces. It is also recommended to use ARP Ultra-Torque Fastener Assembly Lubricant during installation to ensure proper torque and clamping force. Instructions: 1. To ensure proper thread engagement and accurate torque readings, clean ALL threads in the block. Chase if necessary with ARP Thread Chaser. 2. Clean and inspect all hardware prior to installation. Look for obvious defects or shipping damages, plus proper fit, length and dimension. 3. If the cylinder head studs protrude into a water jacket, lubricate the block threads of the studs with ARP THREAD SEALER. 4. Screw studs into the block “HAND TIGHT ONLY”. 5. Install the cylinder head(s) and check for binding or misalignment. 6. Lubricate the stud threads, nuts and washers with ARP ULTRA-TORQUE FASTENER ASSEMBLY LUBRICANT. Then install the washers and the nuts onto the studs and tighten them hand tight. ARP recommends using the ARP ULTRA-TORQUE FASTENER ASSEMBLY LUBRICANT that is provided with each kit as opposed to motor oil. This is due to higher friction on the studs as well as inconsistencies in the clamping force of the fasteners when motor oil or other low quality lubricants are used.

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General Purpose Hose Clamp - Priced Each

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T#:592737

Part#: 07129952104

Ships in 3 Business Days

$ 6.99 USD

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$ 6.99 USD

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Rein Intake Gasket - E30, E34

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T#:591832

Part#: 11611726010

Ships in 3 Business Days

$ 4.99 USD

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$ 4.99 USD

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4 required

Rein Aluminum Magnetic Oil Drain Plug - S/N63, M/N62, S/M70, M/N73, N...

T#:53750214

Part#: HWU0115

Ships in 3 Business Days

$ 17.99 USD

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$ 17.99 USD

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Rein Oil Drain Plug with Aluminum Construction, OE Dimensions and Threading. Upgrade Over Stock with a Magnetic tip to collect unwanted debris

Oil Pan Gasket - Upper - E30 M3

T#:337964

Part#: 11131727974

In Stock at Vendor

Starting at $ 12.99 USD

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Starting at $ 12.99 USD

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E30 M3 Upper Oil-Pan Gasket. Have a leaky oil pan? It may be failed oil pan gaskets (either upper or lower). This is the UPPER oil pan gasket for the S14 and M10 engines. We offer this gasket in both cork and paper gasket media.

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Oil Pan Gasket - E30 325e 325es 325i 325is - E34 525i 1989-1990 ...

T#:337966

Part#: 11131730234

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Starting at $ 8.99 USD

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Starting at $ 8.99 USD

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This oil pan gasket fits BMW E30 325e 325es 325i 325is 325ic with M20 engine and E34 525i 1989-1990.

This item fits the following BMWs:
1984-1991 E30 BMW 325e 325es 325i 325is 325ic
1989-1990 E34 BMW 525i

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Valve Cover Vent Hose - E30 325e 325i E28 528e E34 525i

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T#:6692

Part#: 11151708801

In Stock

$ 18.99

This product was last offered at the strikethrough price on
06-04-2026

$ 10.17 USD

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$ 10.17 USD

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This is the engine PCV vent hose that connects to the valve cover. A cracked hose can lead to rough idle and poor running. Replace your dry or cracked hose today.1987-1991 E30 BMW 318i 318is 318ic 325e 325es 325i 325ic 325is 325ix M3
12/1986-1988 E28 BMW 524td 528e 533i 535i 535is M5
1989-1990 E34 BMW 525i

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Project Cars

SELECT YOUR BMW

BMW Engine Parts for BMW 3 Series E30 (1984-1991)

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