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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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3/8" Dr. 5/8" Extended Spark Plug Socket

T#:2242226

Part#: W80533

Ships in 1 Business Day

$ 20.25 USD

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Extended socket length reaches confined areas.

Spark Plug Gap Gauge

T#:1855998

Part#: W80535

Ships in 3 Business Days

$ 1.99

This product was last offered at the strikethrough price on
08-26-2026

$ 1.54 USD

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$ 1.54 USD

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Easy to read markings to set gaps quickly and easily.

Hitachi Ignition Coil - 12131712219 - E46, E39, E60, E63 E64 6 Series...

For vehicles with production date up to 06/2009

T#:48815451

Part#: 12131712219

Ships in 6 Business Days

$ 57.99 USD

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$ 57.99 USD

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Get your spark back with new ignition coils.

Hitachi Ignition Coil With Spark Plug Connector - BMW N54 N55 N62 N63...

T#:48850063

Part#: 12138657273

Ships in 6 Business Days

$ 53.99 USD

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$ 53.99 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. ometimes, 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.

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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

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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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Ignition Coil - Priced Each

5X Entries Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes!
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T#:4154570

Part#: 12138616153

Ships on Dec 4, 2026

$ 36.99 USD

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$ 36.99 USD

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Maintain the factory-level precision and power output of your BMW or MINI with this replacement ignition coil from Meyle.

Spark Plug Boot - Priced Each

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T#:5958750

Part#: 12139067831

Ships on Dec 4, 2026

$ 15.99 USD

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$ 15.99 USD

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MEYLE-ORIGINAL: True to OE spark plug boot Should be replaced each time you replace the spark plugs Wulf Gaertner Autoparts AG manufactures and markets automotive spare parts under its MEYLE brand. Since its foundation in 1958, Wulf Gaertner Autoparts has been an owner-operated, unlisted family business on the aftermarket scene. Since 1995, Wulf Gaertner Autoparts AG has been manufacturing and trading under its MEYLE brand. They pride themselves on top-grade quality-tested spare parts for passenger cars, vans and commercial vehicles. Comparable OE Cross Reference - 12139067831

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BMW - Start/Ignition/Glow plug relay

5X Entries Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes!

T#:40342871

Part#: 12135A06753

Ships on Dec 4, 2026

$ 58.99 USD

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$ 58.99 USD

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This BMW/MINI ignition coil is designed with enhanced core windings to boost spark energy and promote a quicker, more efficient combustion. The result is improved low-end torque and increased horsepower at higher RPMs. While the exact gains depend on your engine’s condition, noticeable performance improvements and better fuel efficiency can be expected.

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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
- Ignition Coils (6)
- Spark Plugs (3)

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