Ignition Boxes - None Timing Retard - 135 Spark Output (millijoules) - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

MSD 6AL-2 Ignition Boxes 6421

Ignition Box, MSD 6AL-2, Digital CD, with Rev Limiter, Red, Each

Part Number: MSD-6421

4.6 out of 5 stars ( 81 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Ignition Box, Sniper EFI, HyperSpark, CD Ignition Box, Capacitive Discharge, Digital, Black Case, 7.89 in. Long, 4.00 in. Wide, 2.04 in.Tall, Each

Part Number: SNE-556-151

4.45 out of 5 stars ( 53 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Ignition Box, MSD 6AL-2, Digital CD, with Rev Limiter, Black, Each

Part Number: MSD-64213

4.36 out of 5 stars ( 14 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Ignition Box and Coil Kits, CD-1 Super Speedway Ignition System, Kit

Part Number: JMS-6000-6701K

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Ignition Boxes, CD-1 Super Speedway Ignition Box, Rev Limiter, Capacitive Discharge, Black, Each

Part Number: JMS-6000-6701B

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

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Estimated Ship Date: Feb 27, 2026 if ordered today