Electrical, Ignition & Data Systems
Power your race car and monitor its performance with premium electrical, ignition, and data systems from Quarter-Max. We carry high-performance racing batteries, custom wiring harnesses, switch panels, advanced ignition controls, and complete data acquisition systems to keep you completely dialed in at the track.
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Air Solenoid Valves & Air Switches
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Batteries & Accessories
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Delay Boxes, Dial Boards & Timers
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FuelTech USA
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Gauges
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MSD Ignition
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LED Lights
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Racepak & Data Systems
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Radio Communications & Mounts
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Starters & Accessories
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Switch Panels & Wiring Supplies
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Weather Stations
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QM EGT Weld-In Bung, Stainless Steel
Quarter-Max
$16.54Stainless Steel EGT Weld In Bung.QM-219307-1$16.54 -
QM Emergency Shut Off Button Switch, Push Pull
Quarter-Max
$94.00When seconds count on the track, total electrical shutdown must be instantaneous and fail-safe. The Quarter-Max Large Push-Button Master Switch—widely utilized as an exterior bumper switch or kill...CR-BSO-1$94.00 -
QM HD Delay Timer
Quarter-Max
$167.99The Quarter-Max 12 volt delay timers can be set in .01 - 10 seconds of delay intervals. Commonly used to bring in the 2nd NOS system and to delay the electric shock changes from the gear change. For...QM-214300-2$167.99 -
QM Headlight Contact Wireless Connector
Quarter-Max
$36.74No need to unplug wires this connector makes having headlights in a removable front end easy. These heavy duty solid brass contacts handle up to 60 amps per circuit. Mounts anywhere in the doorjamb...QM-610042$36.74 -
QM Heavy Duty Master Disconnect Kit
Quarter-Max
$160.64This assembly allows all electrical power to be shut off for safety purposes. Features an easy and presentable inside installation. Comes with all hardware necessary, including the Big Switch 250 Amp...QM-214216-1$160.64 -
QM HVC-2 Coil Mount
Quarter-Max
$22.04This mount fits the MSD-8261 HVC-2 Coil.Specifications:• Thickness: 1/8"• Material: 6061 aluminum• Size: 5.50" L x 4.25" WQM-410331$22.04 -
QM Insulated Stud, Red
Quarter-Max
$12.59Allows for the isolation of cables from the body. Bolts to any surface.QM-214154$12.59 -
QM Koni Shock Box Mount
Quarter-Max
$40.94Our laser cut aluminum Koni Shock Box mount is designed to mount both your shock box and a Digi-Set timer, and makes it easy to hide the wiring for a clean appearance. Includes four vibration mounts...QM-201113$40.94 -
QM Large Battery Charge Mount, 4130
Quarter-Max
$15.74Easily mount the SB175 Standard Housing to your chassis with these purpose-built brackets. Crafted from durable .050 in. 4130 steel, this mount bracket is designed for a secure, permanent...QM-410887-2$15.74 -
QM Large Vibration Mount - 8-32 Thread
Quarter-Max
$7.34Vibration mounts help protect your valuable and sensitive computer and electronic equipment from the extreme vibrations which occur while your car is running. 8-32 threads.QM-211656$7.34 -
QM LED Brake/Tail Light Bracket
Quarter-Max
$6.29LED Brake/Tail Light Bracket .035" mild steel material. Laser cut bracket used for mounting LED Brake/Tail light #214158QM-410673$6.29 -
QM Lightweight Electronic Shift Controller
Quarter-Max
$424.19This ultra light weight shift controller is designed to be used with an automatic shifter. You simply wire this Shift Controller to your ignition box or automatic shift box and it will do the...QM-600068$424.19 -
QM Lightweight Radio Mount
Quarter-Max
$28.34The weld-on radio mount welds to a 1-5/8" tube. the bolt-on mount can be mounted anywhere. This radio mount fits most universal racing radios. 22 gauge thick. Made of cold rolled mild steelQM-410594-1$28.34 -
QM Lightweight Wheelie Bar Load Cell with 1/2" Hole x 3/4"-16 Thread, Aluminum, Black
Quarter-Max
$415.79Relay the amount of force applied on your wheelie bars to your Racepak with this load cell. Fill the load cell with brake fluid and install the sensor into the 1/8" NPT port. Modification of current...QM-219705-2B$415.79 -
QM Line Lock Button
Quarter-Max
$62.99Can be used for line locks, trans brakes, chute releases, and nearly anything else you can think. Mount easily to your steering wheel or shifter. coarded cable takes up the slack. Note: The photo...QM-206114$62.99 -
QM Momentary On Switch, Red Button
Quarter-Max
$12.59Red push button switch used for horn button or any momentary function. Mounts in 1/2 in. hole and used on panels up to 1/4 in. thick. Sold individually.QM-214159$12.59 -
QM Nitrous Switch Panel Jumper Strip
Quarter-Max
$26.24Make wiring your nitrous QM switch panel a ease with this 1/8" copper jumper strip. The jumper strip ties all your switches together.QM-410584-1$26.24 -
QM Nitrous Switch Panel Label
Quarter-Max
$17.84Apply this vinyl sicker the plate of your Overhead Nitrous Switch Panel #214160QM-694009-1$17.84 -
QM O2 Bung Plug
Quarter-Max
$12.59This is a O2 sensor plug that you can use to plug your old O2 sensor bung if it not in use.QM-219306-1$12.59 -
QM O2 Sensor Stainlesss Weld-In Bung
Quarter-Max
$15.74When welded in place, this bung provides a place to mount O2 sensor.QM-219306$15.74 -
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QM On-Off-Test 2 Poles Toggle
Quarter-Max
$50.39Fuel pump switch on-off-test 2 pole toggle.QM-214145-2N5$50.39 -
QM On-On Pole Toggle
Quarter-Max
$26.24Single pull double throw on/on toggle switchQM-214145-1NT1-3$26.24 -
QM Overhead Nitrous Switch Panel
Quarter-Max
$414.74This overhead Nitrous Switch Panel has an awesome design. This panel is made from 5052 aluminum and has all the switches and buttons needed to operate a Nitrous Pro Mod car with 4 stages of Nitrous...QM-214160$414.74 -
QM Overhead Switch Panel
Quarter-Max
$79.99 - $278.99The QM Overhead Switch Panel provides complete electrical control made from 5052 aluminum. Designed for easy overhead mounting and wiring. This panel has enough room for switches that it can be used...QM-214130-x$79.99 - $278.99 -
QM Oversized Red Line Lock Button
Quarter-Max
$62.99Line Lock Button Can be used for line locks, trans brakes, chute releases, and nearly anything else you can think. Mount easily to your steering wheel or shifter corded cable takes up the slack.QM-206114-1$62.99 -
QM Pro Twist Lock Battery Charging Lug Kit
Quarter-Max
$174.81Quarter-Max's Pro Twist Lock Battery Charging Lug Kit offer a unique twist lock design for quick and secure charge connection. Designed to be utilized for battery charge lug connection in body...QM-214124$174.81 -
QM Pro Twist Lock Charge Lug Black Female
Quarter-Max
$83.99Quarter-Max's Pro Twist Lock Charge Lugs offer a unique twist lock design for quick and secure charge connection. Designed to be utilized for the starter cable on the firewall or battery charge...QM-610053$83.99 -
QM Pro Twist Lock Charge Lug Black Male
Quarter-Max
$25.19Quarter-Max's Pro Twist Lock Charge Lugs offer a unique twist lock design for quick and secure charge connection. Designed to be utilized for the starter cable on the firewall or battery charge lug...QM-610052$25.19 -
QM Pro Twist Lock Charge Lug Red Male
Quarter-Max
$28.34Quarter-Max's Pro Twist Lock Charge Lugs offer a unique twist lock design for quick and secure charge connection. Designed to be utilized for the starter cable on the firewall or battery charge lug...QM-610050$28.34 -
QM Pro Twist Lock Starter Cable Quick Disconnect Kit
Quarter-Max
$102.89Quarter-Max's Pro Twist Lock Starter Cable Quick Disconnect Kit offers a unique twist lock design for quick and secure power connection. Speed up your engine removal and installation. Simply twist...QM-214126$102.89 -
QM Proximity Sensor
Quarter-Max
$110.24Magnetically triggered switch normally open and closed with magnet passage. Same as supplied with Racepack Computer Systems. Fits 3/8" diameter hole in mount bracket.QM-207109$110.24 -
QM Racepak Laser Ride Height Bracket, Universal
Quarter-Max
$4.19This universal mounting bracket is designed to fit the new style Racepak ride height sensor RAC-810-SN-RHB2. Specifications:• Material: Mild Steel• Size: 2" x 1-1/2"QM-411023$4.19 -
QM Red Battery Terminal Protector
Quarter-Max
$8.39Protect your cable ends with this rubber protector. Fits a 1 to 2 gauge wire.QM-610105$8.39 -
QM Red LED Light 3/4"
Quarter-Max
$9.443/4" Red LED light with rubber grommet. Mount this light in the rear panel as a rear marker light.ÂQM-610066$9.44 -
QM Remote Electrical Arming Kit
Quarter-Max
$116.54Ever realized you forgot to turn on the electrical power after you strapped yourself into the seat? This simple kit allows you to easily turn on the electrical power from the driver’s seat. Also can...QM-214215$116.54 -
QM Remote Starter Button Mount
Quarter-Max
$20.99Easily mount your remote starter switches to the firewall or chassis and protect them from accidental engagement at the same time!(welding required)QM-214117$20.99 -
QM Remote Starter Switch
Quarter-Max
$17.84Easily bump the motor over from under the hood simply by pushing the button on this weatherproof starter switch.QM-214131$17.84