1954 DeSoto All Models Painless Performance Products

This harness is standalone and is not intended to replace the OEM engine wiring. Standalone harnesses are intended to run the designated engine & transmission only, generally when swapped into another vehicle. This harness...

Painless Performance high amp alternator wiring kit. This includes a high amp inline fuse with protected fuse holder, all necessary ring terminals, heat shrink, and a detailed set of diagrams and step by step instructions to...

Installing a Painless fuel injection harness and want to keep all your emissions devices intact? The Painless solution is to install a Painless emissions harness. These harnesses activate the AIR Port Solenoid Control, AIR...

Mounts in 5/16" hole. 12 Volt operation. Made in USA

This is a replacement switch for use with the Painless Fan-Thom II electric fan relay set. Made in USA Includes: 185° F on / 175° F off thermostat 1/2" NPT to 3/8" NPT adapter Insulated terminals

The safe way to add electrical accessories to any vehicle is with a CirKit Boss. The first circuit isolator system available with both constant and ignition hot circuit kits. Kits include an in-line circuit breaker, relay,...

Mounts in 5/16" hole. 12 Volt operation. Made in USA

Painless Performance replacement Ford Duraspark II ignition harness. Can also be used to upgrade a points style ignition to Duraspark system. It allows for the factory location of your module and coil. Fits factory Ford...

When you need protection from the harsh conditions, this set provides complete protection from the elements to ensure reliable and dependable performance. This is inexpensive protection for an electric fan and a vehicle's...

When you need protection from the harsh conditions, this set provides complete protection from the elements to ensure reliable and dependable performance. This weather proof 250 AMP dual battery controller set includes a...

Voltage spikes can cause damage to various components in your vehicle's electrical system. This easy to install device clips the spikes at 14.5 volts to protect sensitive electrical accessories. Installs between positive and...

This is our customizable 21 circuit pickup chassis harness. You'll find that the ample wire lengths make this kit especially suited for trucks with long beds and extended cabs. We offer two versions, one with the GM column...

Now you can control the lock-up function on your 200-4R overdrive transmission with your carbureted engine without having to buy expensive computer controlled equipment. The 200-4R will give you quicker acceleration and...

Vehicle Anti-Theft (VATS) defeat module. This module is included with the 60502 & 60505 harness kits. This module is meant to work when swapping an 92-93 LT1, 94-95 LT1, or 97-98 LS1 engine into a different application and...

This 21-circuit kit has extra long wires allowing you to mount the fuse block in a remote location such as in the trunk or behind the rear seat. This harness is highly adaptable to almost any vehicle. Included with this...

This 28-circuit kit includes most all the power accessory circuits you have been looking to add to your vehicle. This universal harness will work on carbureted or any stand alone fuel injected engine with any type...

The safe way to add electrical accessories to any vehicle is with a Painless Performance CirKit Boss. The CirKit Boss is the first circuit isolator system available with both constant and ignition hot circuit kits. The kit...

Perfect for replacing damaged, missing or worn out original connectors for GM steering columns. Pigtails include proper crimps installed on factory connectors for an OE appearance and GM color coded, industry certified...

Weld-in oxygen sensor fitting for all fuel injection systems. Fits TBI, TPI, CMFI, LT1, LSX, 5.0L and most other oxygen sensors. Important: This part requires welding for installation. Professional installation is...

This set, complete with a 250 amp solenoid, will effectively handle alternator feedback of the highest amperage alternators. Eliminates engine run-on when the master disconnect is turned off. Alternator feedback can keep your...

This Remote Master Disconnect with Mechanical Latching Solenoid is ideal for everyday vehicle applications and is a simple and effective theft deterrent. Features a constant hot wire for computer or radio presets. It uses a...

This kit has only the highest quality components. Kit comes complete with 16 feet of red #1 gauge positive cable and 3 feet of black #1 gauge cable, both with heavy duty battery terminals already installed capable of...

The safe way to add electrical accessories to any vehicle is with a Painless Performance CirKit Boss. This is the first circuit isolator system available with both constant and ignition hot circuits. The kit includes an...

This PCM Controlled, Weatherproof Fan Relay kit is inexpensive protection for an electric fan and a vehicle's wire harness. Relay activation by grounding the relay coil can be provided by most Powertrain Control Modules. ...

This harness is standalone and is not intended to replace the OEM engine wiring. Standalone harnesses are intended to run the designated engine & transmission only, generally when swapped into another vehicle. The V8 LT1 and...

This relay harnesses set provides maximum battery voltage to maximize cooling efficiency and to protect the main electrical system from damaging amperage overloads. This weatherproof water pump relay harness is perfect for...

Use this 20 Circuit OEM style pre-wired fuse block to replace your existing fuse block or as a starting point for custom wiring. All you have to do is terminate your circuit wire and attach it to the fuse block. ...

Replacement pigtail for GM HEI distributors. Made in USA

Installing a Painless fuel injection harness and want to keep all your emissions devices intact? The Painless solution is to install a Painless emissions harness. These harnesses activate the AIR Port Solenoid Control, AIR...

If you want to keep your under-dash area organized or you think that you need to remove gauges from time to time then you need to install our universal gauge harness. Installation Instructions: Download Here Made in USA ...

This harness is standalone and is not intended to replace the OEM engine wiring. Standalone harnesses are intended to run the designated engine & transmission only, generally when swapped into another vehicle. If you...

Mounts in 5/16" hole. 12 Volt operation. Made in USA

Designed for 9005 and 9006 halogen bulbs. To get maximum power from your headlights it is recommended to have the shortest possible distance between the power source and the bulbs. This headlight harness draws power...

Are you looking to remote mount your fuse block and you want full power options? Then this 28-circuit kit will provide you with all those power accessory circuits, as well as extra long wires allowing you to mount the fuse...

Mounts in 1/8" hole. 12 Volt operation. Made in USA

This set is designed to allow a wide range of temperature adjustments for your electric fan. A bulb at the top of the capillary tube is designed to probe or be attached to the top or hottest portion of the radiator. The...

Mounts in 1/2" hole. 12 Volt operation. Made in USA

This harness is standalone and is not intended to replace the OEM engine wiring. Standalone harnesses are intended to run the designated engine & transmission only, generally when swapped into another vehicle. If you...

Installing a Painless fuel injection harness and want to keep all your emissions devices intact? The Painless solution is to install a Painless emissions harness. These harnesses activate the AIR Port Solenoid Control, AIR...

Installing air conditioning to your hot rod with dual electric cooling fans? Need cooling fan relays to operate off a thermostatic switch and when your AC is on? Then this dual activation cooling fan relay set by Painless...

This harness is standalone and is not intended to replace the OEM engine wiring. Standalone harnesses are intended to run the designated engine & transmission only, generally when swapped into another vehicle. This harness...

This is a replacement switch for use with the Painless Fan-Thom II electric fan relay set. Made in USA Includes: 195° F on / 185° F off thermostat 1/2" NPT to 3/8" NPT adapter Insulated terminals

The junction block with two ten gauge posts is the perfect way to attach large gauge wire connections.

This Fan-Thom II kit comes with a threaded thermostat that screws into the engine block or intake manifold for a professional looking installation. This is inexpensive protection for an electric fan and a vehicle's wire...

Mounts in 1/2" hole. 12 Volt operation. Made in USA

Mounts in 1/2" hole. 12 Volt operation. Made in USA

This 21-circuit kit is our most widely used customizable chassis harness. You'll find that it's easily adaptable to almost any vehicle. This universal harness will work on carbureted or any stand alone fuel injected engine...