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MSDHigh-Current Solid-State Relay 35Ax4, Black High-Current Solid-State Relay 35 Amp per channel up to 140 Amp continuousPart# 75643-HCFree ShippingIn Stock
$229.95
MSDHigh-Current Solid-State Relay 35Ax4, Red High-Current Solid-State Relay 35 Amp per channel up to 140 Amp continuousPart# 7564-HCFree ShippingIn Stock
$230.95
In Stock
$103.95
MSDMSD High Current Relay, SPST The SPST High Current Relay is rated at 30 amps with an input voltage of 12 volts DC.Part# 8961Free ShippingIn Stock
$63.49
Part# 7566-4Free ShippingIn Stock
$168.95
MSDMSD SPST Relay w/Socket Harness The SPST Waterproof High Current Relay is rated at 30 amps with an input voltage of 12 volts DC, supplied with Socket Harness.In Stock
$36.60
Part# 7564Free ShippingIn Stock
$208.95
MSDMSD Noise Capacitor, 26 Kufd Filters away EMI that is caused by MSD power cables and prevents damage from voltage and current surges.Part# 8830MSDFree ShippingIn Stock
$76.49
Part# 75643Free ShippingIn Stock
$208.95
MSDMSD Deutsch Connector Kit 360 Piece Deutsch Connector Kit comes with 2, 3, 4, 6, 8 and 12 Pole Housings and Pins w/SealsPart# 8188Free ShippingIn Stock
$259.95
MSDElectric Fuel Pump Harn./Relay Kit 30A Electric Fuel Pump Harness & Relay Wiring Kit. 30 Amp Relay and Circuit BreakerPart# 89618Free ShippingIn Stock
$47.72
MSDMSD Weathertight Connector - 2-Pin - Qty 1 Self-Lubricating Silicone Seals for Protection Against Water, Dust, Oil, and Other Engine Compartment FluidsIn Stock
$18.19
In Stock
$15.37
MSDMSD Solder Sleeve Wire Splice Kit 42 Piece Solder Sleeve Splice Heat Shrink Kit, white, red, blue and yellow with 2:1 shrink ratioIn Stock
MSRP $49.47$28.58Save $20.89
Last ChanceIn Stock
MSRP $68.95$29.95Save $39.00
MSDMSD Heat Shrink Terminal Kit 165 Piece Heat Shrink Terminal and Closed End Connector Kit, Spade, Butt, and Ring terminals with 3:1 heat shrinkIn Stock
MSRP $94.95$54.79Save $40.16
Part# 8184Free ShippingIn Stock
$49.95
In Stock
$25.95
In Stock
$21.01
MSDElectric Fan Harn./Relay Kit 195 Deg-30A Temperature Controlled Cooling Fan Harness & Relay Kit w/ 195 degree temperature switch. 30 Amp Relay and Circuit BreakerPart# 89616Free ShippingIn Stock
$76.19
MSDMSD Weathertight Connector - 1-Pin - Qty 1 Self-Lubricating Silicone Seals for Protection Against Water, Dust, Oil, and Other Engine Compartment FluidsIn Stock
MSRP $20.46$11.82Save $8.64
In Stock
$21.01
In Stock
$21.01
In Stock
$16.78
MSDUniversal, Push On/Off Button, Alternate Action Switch Assembled and constructed for harsh racing conditions.Part# 8812Free ShippingIn Stock
$167.95
MSDMSD Solid State N/O Relay w/Socket Harness The SPST Normally Open Relay is rated at 20 amps continuous, supplied with Socket Harness.Backordered
Est. Ship Date: 08/31/2026
$62.29
Wiring And Relays
Wiring kits, relay blocks, toggle switches, and harnesses are designed for easy installation and reliable performance in MSD-equipped vehicles.