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Ignition for BMW 3 Series E46 (1999-2005)

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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

T#:640924

Part#: CTA4329

In Stock

$ 24.28 USD

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$ 24.28 USD

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Swivel Spark Plug Socket 16MM

Extended Spark Plug Socket

T#:391150

Part#: SUU884506

In Stock

9% off MSRP $ 31.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 28.99 USD

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9% off MSRP

$ 31.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 28.99 USD

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3/8" drive socket with 5/8" opening for most spark plugs

Mishimoto Ignition Coils, 6-Pack - BMW M54, N20, N52, N54, N55, N62, ...

T#:51075072

Part#: MMIG-BMW-0206

Ships in 3 Business Days

$ 184.99 USD

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$ 184.99 USD

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The Mishimoto Ignition Coil is built to handle the intense heat cycles found in BMW’s modern turbocharged and naturally aspirated engines.

CTA Tools - Spark Plug Gapper

T#:641654

Part#: CTA3235

Back Ordered

33% off MSRP $ 2.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 1.99 USD

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33% off MSRP

$ 2.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 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

T#:641657

Part#: CTA3238

Ships in 1-2 days

$ 3.99 USD

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$ 3.99 USD

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Always check gap on your new spark plugs

Mishimoto Ignition Coil - Single - BMW M54, N20, N52, N55, N62, N63, ...

T#:51110138

Part#: MMIG-BMW-07

Ships in 3 Business Days

$ 41.99 USD

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$ 41.99 USD

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Mishimoto’s Delphi-style ignition coils offer a premium solution for BMW owners looking to replace worn-out factory units.

Mishimoto Ignition Coil, Delphi Style, 6-Pack - BMW E82, E9X, F3X N54...

T#:51075071

Part#: MMIG-BMW-0706

Ships in 3 Business Days

$ 204.99 USD

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$ 204.99 USD

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The Mishimoto Ignition Coil focuses on durability and electrical precision.

Mishimoto Ignition Coil, 4-Pack - BMW N20, N52, N54, N55, S54, S55 ...

T#:51075078

Part#: MMIG-BMW-0204

Ships in 3 Business Days

$ 123.99 USD

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$ 123.99 USD

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The Mishimoto BMW Ignition Coil is built to handle the intense heat cycles found in BMW’s modern turbocharged and naturally aspirated engines.

M50/M52/M54 Beru Racing Spark Plug

T#:338884

Part#: FGR-6DDU

Back Ordered

Sale - Save 17% $ 23.99

This product was last offered at the strikethrough price on
11-07-2026

Starting at $ 20.00 USD

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Sale - Save 17%

$ 23.99

This product was last offered at the strikethrough price on
11-07-2026

Starting at $ 20.00 USD

Add to Wish List

RACING SPARK PLUG FOR M50/M52/M54 ENGINES
These spark plugs are recommended by BMW Motorsport for use in their DTC racing engines. We find a slight horsepower increase and greatly increased durability over the OEM road car spark plugs in competition use. We attribute the improvements to the fact that these spark plugs are designed for the high temperatures and cylinder pressures encountered in a racing engine. These spark plugs are a direct replacement and come pre-gapped just like the factory road car plugs.
Please note: these plugs are not for the S54 engine in the E46 M3, MZ3, or Z4 M

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Spark Plug Boot - Priced Each

T#:596875

Part#: 12131730412

Back Ordered

$ 15.99 USD

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$ 15.99 USD

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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.

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- Ignition Coils (5)
- Spark Plugs (5)

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