Extreme Duty 6ALN Circle Track Ignition Control

Name: Extreme Duty 6ALN Circle Track Ignition Control
Brand: MSD IGNITION
SKU: 121-6430
Price: 559.95 USD
Availability: InStock

^$559⁹⁵

More than 10 available

Ships on Oct 12, 2026

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Circle Track & Road Racing

Per Spark Energy: 105-115 mJ
Built-in Rev Limiter with RPM Modules
CARB Approval: Non-Emissions Controlled
Red
NASCAR-Approved Connectors
Targeted for NASCAR and Off-Road Racing

The MSD 6ALN was designed with NASCAR and Off-road racers in mind... in fact, this capacitive discharge high-power ignition is approved by NASCAR! It features the mandatory 6-pin weathertight connector that meets NASCAR ignition wiring rule 20-6.1. The connector provides a tight, positive lock-ing connection with individual seals to keep dirt and moisture away from each connection. All of the MSD's primary wiring meets MIL-86A specifications with special tinned conductors for superior crimps. Inside the strong cast aluminum housing, the multiple sparking CD circuits are encased in a clear two-part silicone elastomer for the ultimate in vibration protec-tion. A special clear baseplate is also installed for easy tech inspection.
Highlights
Designed for Circle Track racing with NASCAR-mandated 6-pin weathertight connector
Clear epoxy potting compound for extreme vibration protection
Circuit board is encased in a clear two-part silicone elastomer
Clear plastic base for easy tech inspection
Soft Touch Rev Control is adjustable with RPM modules
Accepts breaker points, amplifier, and magnetic pickup trigger inputs
No CARB Exemption Order Number
Operating Specifications
Spark Energy: 105-115 mJ per spark up to 15,000 RPM
Primary Voltage: 460-480 volts
Secondary Voltage: 45,000 volts (tested with Blaster Coil)
Spark Series Duration: 20° crankshaft rotation
RPM Range: 15,000 RPM with 14.4 volts
Voltage Required: 12-18 volt electrical systems
Current Draw: 1 amp per 1000 RPM
Size: 8" L x 4" W x 2.25" H
Weight: 5.1 lbs
Multiple spark, capacitive discharge ignition control
Supplied with 3,000, 6,000, 7,000 & 8,000 RPM Modules
Supplied with rubber shock mounts
Programmable for 4, 6, or 8-cylinders by cutting red/blue wire loops
110 millijoules per spark up to 15,000 RPM
470 primary voltage output to coil
Accepts breaker points, amplifier and magnetic pickup trigger inputs

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

Part TypeIgnition Box

BrandMSD IGNITION

Package Height3.0

Package Width8.0

Package Length11.0

Weight4.4 PG

Part CategoryPerformance Parts

Ignition Box OutputCapacitive discharge

Rev LimiterYes

QuantitySold individually

Cd Voltage Output To Coil460-480 V