Ignition for BMW 8 Series E31 (1991-1997)

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Your BMW's ignition system is critical for smooth engine operation. This category contains parts used in the BMW ignition system, including spark plugs, ignition coils, spark plug wires and boots, ignition rotors and caps, distributors and distributor caps. On most 1991 and later model BMWs, your car has what's known as a coil-on-plug system, where each cylinder has its own ignition coil that sits directly atop the spark plug (so you won't have spark plug wires on those BMWs.) A fresh set of spark plugs is an essential part of any BMW engine tune up.

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Spark Plug Socket 16MM 12 Point Swivel

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T#:640924

Part#: CTA4329

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$ 24.28 USD

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Swivel Spark Plug Socket 16MM

Ignition Coil - most 1996-2002 E36 E46 E39 E38 X5 Z3 Z8

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T#:338001

Part#: 12131748018

In Stock

$ 63.99

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

Starting at $ 57.99 USD

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Starting at $ 57.99 USD

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Ignition coils are key to the efficiency and performance of your BMW. With a faulty coil the spark plug is not burning the air/fuel mixture properly and that can lead to problems anywhere in the engine and exhaust (including catalytic converters and O2 sensors). Problems with one or more coils will cause a fault code but not always a check engine light. A misfire code may be related to an ignition coil but could be from other things as well. Sometimes a visual inspection of a coil and coil boot will give an indication of a failure. You can also move coils around to different cylinder banks to see if the misfire code follows a suspect coil. We suggest always having one or two coils on hand to keep as spares.

This is the OEM Bosch ignition coil used in M52, S52, M52TU, M54, M56, M62, M62TU, S62, and M73 engines (but may be split into specific model years, see below). BMW has made numerous changes to ignition coil part numbers in recent years but has approved this part number to work in the vehicles listed below. This part number 12131748018 replaces previous BMW part number 12139067830 and 12137599219.

Sold per coil. Connecting boot sold separately.

E46 ignition coil boot

We recommend replacing the rubber boot that connects the ignition coil to the spark plug. Sometimes a bad coil may just be a broken or damaged connector boot. This is especially true on cars with a leaking valve cover gasket where the oil has contamintated the rubber boot and the electrical parts inside. This boot can be replaced on its own without having to buy a whole new coil. This part is also useful if you purchased a coil that did not come with a new boot.

This item fits the following BMWs:
1996-1998 E36 BMW 323is 323ic 328i 328is 328ic M3
1999-2000 E46 BMW 323i 323ci 328i 328ci
2001-2002 E46 BMW 325i 325ci 325xi 330i 330ci 330xi (including M56 SULEV engine)
1997-2003 E39 BMW 528i 540i M5
2001-2002 E39 BMW 525i 530i
1996-2001 E38 BMW 740i 740il 750il
1996-1999 E31 BMW 840ci 850ci
2000-2003 E53 BMW X5 4.4i X5 4.6is
2000-2002 E53 BMW X5 3.0i
1997-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
1998-2000 Z3 BMW Z3 M Roadster Z3 M Coupe (S52)
2000-2003 E52 BMW Z8

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CTA Tools - Spark Plug Gapper

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T#:641654

Part#: CTA3235

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$ 1.99 USD

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$ 1.99 USD

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CTA Tools - Spark Plug Gapper is an essential tool for accurately setting and measuring spark plug gaps, ensuring optimal engine performance. This precision tool is designed for both professional and DIY mechanics, providing reliable gap adjustments for a variety of engine applications.

Versatile Measurement Range: The ramp gauge measures gaps from .020 to .100 inches (0.50 to 2.5 mm), accommodating a wide range of spark plug specifications.
Precision Engineering: Engineered to deliver accurate gap settings, improving engine efficiency and performance.
Made in the USA: Crafted with high-quality materials to ensure durability and long-lasting performance.
Easy to Use: Simple design makes gap adjustments quick and straightforward, enhancing convenience in any workshop or garage setting.

Upgrade your toolset with the CTA Tools - Spark Plug Gapper to achieve precise spark plug gaps and optimize your engine’s performance.

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9-Wire Spark Plug Gap Gauge

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T#:641657

Part#: CTA3238

In Stock

$ 3.99 USD

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$ 3.99 USD

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Always check gap on your new spark plugs

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Ignition for BMW 8 Series E31 (1991-1997)

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Spark Plug Socket 16MM 12 Point Swivel

Ignition Coil - most 1996-2002 E36 E46 E39 E38 X5 Z3 Z8

CTA Tools - Spark Plug Gapper

9-Wire Spark Plug Gap Gauge

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