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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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Bav Auto Spark Plug Socket 12" x 5/8"

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T#:580385

Part#: B8800072

In Stock

Sale - Save 30% $ 38.99

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

$ 27.29 USD

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Sale - Save 30%

$ 38.99

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

$ 27.29 USD

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Magnetic insert holds the spark plug securely in place for easy installation. Works great on many twin can engines where the spark plugs are recessed deep in the cylinder head.

Rennline OE+ Ignition Coil - Priced Each

T#:44529390

Part#: M136

Ships in 6 Business Days

Sale - Save 15% $ 48.00

This product was last offered at the strikethrough price on
11-12-2026

$ 40.80 USD

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Sale - Save 15%

$ 48.00

This product was last offered at the strikethrough price on
11-12-2026

$ 40.80 USD

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Billet Spark Plug Gapper Tool - 14mm - BMS

T#:583132

Part#: BMSBSPGT14MM

Ships in 7 Business Days

$ 35.00 USD

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$ 35.00 USD

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BMS Billet Spark Plug Gapper Tool - 14mm is an essential tool for achieving accurate and consistent spark plug gapping, ideal for automotive enthusiasts and professional mechanics alike. This precision tool helps maintain optimal plug performance by providing reliable, consistent gaps. Available in both 14mm and 12mm plug thread sizes, this tool is proudly made in the USA to deliver durability and precision.

Precisely gaps spark plugs for enhanced engine performance and efficiency
Speeds up the gapping process while ensuring accuracy and uniformity
Available in two sizes (14mm and 12mm) for a wider range of compatibility
Optional specialty feeler gauge included with 4 blades in thicknesses of .018, .020, .022, and .024
Made in the USA for premium quality and durability

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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.

IP High Performance Ignition Coil Set - M52/M54/S52

T#:1637695

Part#: IP-A122602

Ships in 5 Business Days

$ 895.00 USD

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$ 895.00 USD

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Ignition Projects is a Southern California based company that specializes in innovative ignitions products. Their mission is to develop stronger ignition systems in order to optimize engine performance and improve emmissions/consumption. All of their products are developed and manufactured here in Tustin, CA, right here in the US!

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M54/S54/N52/N54/N55 IP High Performance Ignition Coil Set

T#:1637696

Part#: IP-A122609

Ships in 5 Business Days

$ 1,055.00 USD

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$ 1,055.00 USD

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Ignition Projects is a Southern California based company that specializes in innovative ignitions products. Their mission is to develop stronger ignition systems in order to optimize engine performance and improve emmissions/consumption. All of their products are developed and manufactured here in Tustin, CA, right here in the US!

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3 Pin Connector

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T#:33412931

Part#: 12527519996

In Stock

Sale - Save 40% $ 10.99

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

$ 6.59 USD

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$ 6.59 USD

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Includes connector housing with terminals and seals. Commonly used for the pencil-style ignition coil connector.

ECS Tuning replacement harness connectors include all necessary pins and wire seals for a complete harness repair. Whether you have a broken harness connector or need a complete wiring repair, we have the components you need.

Each connector includes an additional terminal in case one becomes lost or damaged during installation.

*OEM cross reference PN# 12527519996 - Commonly used for the pencil-style ignition coil connector.

Please reference the original part number from the existing connector to confirm fitment, before ordering.

Suggested tools:

Suggested crimping pliers: T#387193
Wire De-pin tools:
12pc De-Pin Tool Set - T#386379
23pc De-Pin Tool Set - T#641943

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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.

Rennline OE+ Ignition Coils - Set Of 6

T#:44529391

Part#: M136KT

Ships in 6 Business Days

Sale - Save 15% $ 288.00

This product was last offered at the strikethrough price on
11-10-2026

$ 244.80 USD

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Sale - Save 15%

$ 288.00

This product was last offered at the strikethrough price on
11-10-2026

$ 244.80 USD

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Whether used on a daily driver or a track-focused build, these coils deliver the spark energy needed to keep your BMW running at its best.

Rennline OE+ Ignition Coils - Set Of 6

T#:44495474

Part#: M138KT

Ships in 5 Business Days

Sale - Save 15% $ 222.00

This product was last offered at the strikethrough price on
11-10-2026

$ 188.70 USD

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Sale - Save 15%

$ 222.00

This product was last offered at the strikethrough price on
11-10-2026

$ 188.70 USD

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Rennline OE+ Coilpack - Priced Each

T#:44495471

Part#: M138

Ships in 3 Business Days

Sale - Save 15% $ 37.00

This product was last offered at the strikethrough price on
11-12-2026

$ 31.45 USD

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Sale - Save 15%

$ 37.00

This product was last offered at the strikethrough price on
11-12-2026

$ 31.45 USD

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Replace that burnt or damaged coil!

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.

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