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MSD Manuals & User Guides

MSD is a premier manufacturer of high-performance automotive ignition systems, including ignition boxes, distributors, coils, and spark plug wires.

Tip: include the full model number printed on your MSD label for the best match.

MSD Support

Official site: https://www.msdperformance.com
General support: https://www.holley.com/support/
Warranty & registration: Warranty info · Register a product
Support phone: 1-866-464-6553 — Monday - Friday, 7:00 a.m. to 7:00 p.m. CST
Contact form: Contact manufacturer support

MSD manuals

Latest manuals from manuals+ curated for this brand.

MSD 6EFI Universal EFI Ignition Box PN 6415 Installation Instructions

installation guide

Comprehensive installation guide for the MSD 6EFI Universal EFI Ignition Box (PN 6415), covering product registration, parts included, general information, wiring functions, mounting, rev limiter, timing control setup, distributor installation,…

MSD Digital 6 Plus Ignition Control Installation Instructions

Installation Guide

Comprehensive installation guide for the MSD Digital 6 Plus Ignition Control (PN 6520), covering operation, features, wiring, programming, troubleshooting, and compatibility with various vehicle systems. Includes detailed diagrams and technical…

MSD LS Ignition Control PN 6014/60143 Installation Instructions

Installation Guide

Installation guide and technical specifications for the MSD LS Ignition Control (PN 6014/60143), covering wiring, operation, features, software setup, and troubleshooting.

MSD Digital 6AL Ignition Control: REV Limiter Verification Guide

Instruction

Step-by-step guide to enabling and verifying the REV Limiter feature on the MSD Digital 6AL Ignition Control (PN 6425). Learn how to check your rev limit setting and important considerations…

MSD Digital 6M-3L Marine Ignition Installation Instructions

Installation Guide

Comprehensive installation guide for the MSD Digital 6M-3L Marine Ignition (PN 6564), covering features, wiring, programming, troubleshooting, and technical notes for marine applications.

Manual de Usuario MSD Funda Protectora para Bolsas Frío/Calor

manual

Descubra cómo usar y cuidar la Funda Protectora MSD para bolsas térmicas de frío y calor. Mejore la comodidad y seguridad de sus aplicaciones de termoterapia y crioterapia.

MSD Digital 6A and 6AL Ignition Control Installation Instructions

installation guide

Comprehensive installation guide for MSD Digital 6A and 6AL Ignition Controls, covering wiring, operation, features, programming, and troubleshooting for automotive enthusiasts.

MSD 2014 Performance Spark Plug Catalog & Application Guide

Catalog and Application Guide

Explore the 2014 MSD Performance Spark Plug Catalog and Application Guide. This comprehensive resource details MSD's advanced spark plug technology, including features, benefits, installation guidance, and troubleshooting tips. It provides…

MSD manuals from online retailers

MSD 8173 2-Pin Weathertight Connector Instruction Manual

8173 • January 14, 2026

Comprehensive instruction manual for the MSD 8173 2-Pin Weathertight Connector, covering setup, operation, maintenance, and specifications.

MSD 31559 8.5mm Super Conductor Spark Plug Wire Set Instruction Manual

31559 • December 18, 2025

This manual provides detailed instructions for the installation, operation, and maintenance of the MSD 31559 8.5mm Super Conductor Spark Plug Wire Set, designed for optimal ignition performance.

MSD 42921 Powersports Ignition Coil User Manual

42921 • December 10, 2025

Instruction manual for the MSD 42921 Powersports Ignition Coil, covering setup, operation, maintenance, troubleshooting, and specifications.

MSD Dynaforce 50983 Starter Instruction Manual for Chrysler 318-440 Cubic Inch Engines

50983 • December 5, 2025

This instruction manual provides detailed guidance for the installation, operation, maintenance, and troubleshooting of the MSD Dynaforce 50983 Starter, designed for Chrysler 318-440 cubic inch engines.

MSD Ignition 8733 2-Step Launch Control for GM LS Engines User Manual

8733 • November 26, 2025

Comprehensive user manual for the MSD Ignition 8733 2-Step Launch Control module, designed for GM LS Engines. Includes installation, operation, maintenance, troubleshooting, and specification details for consistent launches.

MSD 8975 Digital Multi-Retard Ignition Control Unit User Manual

8975 • November 25, 2025

Comprehensive user manual for the MSD 8975 Digital Multi-Retard ignition control unit, covering setup, operation, maintenance, and troubleshooting for automotive performance applications.

MSD 84811 LT1 Distributor Cap & Rotor Kit Instruction Manual

84811 • November 7, 2025

Comprehensive instruction manual for the MSD 84811 LT1 Distributor Cap and Rotor Kit, including installation, maintenance, troubleshooting, and specifications.

MSD 8222 Blaster Series High Vibration Ignition Coil Instruction Manual

8222 • October 17, 2025

Instruction manual for the MSD 8222 Blaster High Vibration Ignition Coil, covering setup, operation, maintenance, and troubleshooting.

MSD 6520 Digital 6-Plus Ignition Control User Manual

6520 • October 14, 2025

Comprehensive user manual for the MSD 6520 Digital 6-Plus Ignition Control, covering setup, operation, maintenance, troubleshooting, and specifications.

MSD 6530 Digital Programmable 6AL-2 Ignition Box User Manual

6530 • October 12, 2025

Comprehensive user manual for the MSD 6530 Digital Programmable 6AL-2 Ignition Box, covering setup, operation, maintenance, and troubleshooting.

MSD 82706 Ignition Coils User Manual

82706 • October 7, 2025

Instruction manual for MSD 82706 Ignition Coils, providing installation, operation, maintenance, and troubleshooting information for Ford EcoBoost 3.5L V6 engines.

MSD Digital 6A Ignition Control (Model 6201) User Manual

6201 • September 22, 2025

Comprehensive user manual for the MSD Digital 6A Ignition Control, Model 6201. Provides installation, operation, maintenance, and specification details for this microprocessor-controlled capacitive discharge ignition system compatible with…