Bosch BMW Maintenance & Tune-Up Parts for BMW 7 Series E23 (1978-1987)

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Part of owning a BMW is the relationships we develop with our cars through years of driving pleasure and maintenance services alike. It is critical to guarantee the job is right the first time. With recommended OEM supplied components and by following the maintenance schedule, your BMW is sure to continue giving you years of enjoyment on the street or track. All the filters, service kits, service manuals, fluids, and more are right here to help keep your BMW in perfect shape.

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OEM BMW Electrical System Rotor -- M20 M30 M40 S38 M70 M73 S70 ...
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T#:13061
Part#: 12111734110
In Stock
$ 52.01

This product was last offered at the strikethrough price on
03-27-2026

$ 48.95 USD
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$ 48.95 USD
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Over time heat can harden and crack the ignition rotor, and wear can lead to misfires and no-starts. Replace your ignition rotor with a brand new high quality Bosch Rotor to ensure a smooth running engine. OEM replacement for BMW Part # 12111715906 and 12111734110.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

 

Fits the following BMW engines: M20 M30 M40 S38 M70 M73 S70

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OEM Bosch ESI6 Extended Service Brake Fluid - 1qt (946ml) - BMW & MIN...
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T#:1150733
Part#: ESI6-32N
In Stock
$ 21.19 USD
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Modern brake systems, such as those featuring ABS and ESP®, are designed for improved performance to safely stop vehicles. With improved performance comes a higher load on the braking systems. These systems require a brake fluid with a high wet boiling point, low viscosity, and high lubricity. As a vehicle system developer and the first to market ABS and inventor of ESP®, Bosch understands the need for high-quality brake fluid. Bosch ESI6 is a next-generation brake fluid. It exceeds all current DOT standard requirements (FMVSS 116).
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Bosch Distributor Cap - E23, E24, E28
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T#:381494
Part#: 12111288165
Ships in 1 day
$ 179.99 USD
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$ 179.99 USD
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Replace your cracked or worn down cap

Bosch Spark Plugs - WR9LS - M20, M30
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T#:339074
Part#: WR9LS
Back Ordered
$ 78.99

This product was last offered at the strikethrough price on
05-19-2026

Starting at $ 54.99 USD
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Starting at $ 54.99 USD
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Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their exacting assembly process and high level of durability you can expect a long service life from all Bosch products.

Standard replacement plugs for: E30 325e 85-88, E28 528e/533i/535i 82-88, E24 633/635CSi 81-87, E23 733/735i 82-87

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Bosch Oxygen Sensor - Front Position
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T#:591271
Part#: 11761277565
Back Ordered
$ 90.99 USD
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OEM Bosch Spark Plugs -- E30 E28 E24 E23
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T#:348802
Part#: 12121279599
In Stock
$ 13.02

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

$ 9.03 USD
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$ 9.03 USD
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Bosch WR9LS spark plug for M20 and M30 engines. Listed as BMW part #'s 12121279599 and 12121469531. Over time spark plugs become contaminated, worn, and "fouled out". This can cause a weak or missing spark leading to issues with fuel efficiency, misfires, check engine codes, and poor idle or even direct damage to your catalytic converter. This OEM spark plug made by Bosch will restore OE spark plug operation and function, returning lost power and fuel efficiency.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

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Spark Plug
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T#:589000
Part#: 12121276283
In Stock
$ 4.99 USD
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Wiper Blade Set - Evolution
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T#:369417
Part#: 61619061906
In Stock at Vendor
$ 19.99

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

$ 18.99 USD
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$ 18.99 USD
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Bosch Spark Plug - W8DC - 2002, 7-series 1975-79, E21 320i
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T#:339071
Part#: W8DC
Ships in 3 Business Days
Starting at $ 19.96 USD
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Starting at $ 19.96 USD
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High-quality Bosch ignition components keep your car running in tip-top shape.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their exacting assembly process and high level of durability you can expect a long service life from all Bosch products.

This part fits the following BMWs:
1976 - 1989 E24 630CSi 633CSi 
1977 - 1986 E23 733i
1975 - 1983 E21 320i 
1972 - 1984 E12 528i 530i 
1968 - 1977 E3 3.0Si 
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Oxygen Sensor - Upstream
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T#:578915
Part#: 13037
Back Ordered
$ 205.99

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

$ 199.99 USD
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$ 199.99 USD
Free Shipping