1937 DeSoto All Models Painless Performance Products

This Painless Performance premium performance terminal assortment kit provides 84 pieces of assorted sized electrical teminals. These terminals are American made and are top quality. The terminal assortment kit weighs one...

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

This kit uses a 250 AMP solenoid and toggle switch. This switch can be hidden anywhere in the vehicle as a anti-theft deterrent by disconnecting the constant battery power from the battery to the fuse block. Kit comes...

This 250 AMP dual battery controller set includes a three position switch to control the second battery through the operation of the solenoid. Switch position one isolates the auxiliary battery. No light. Position two...

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...

The safe way to add electrical accessories is with a CirKit Boss®? kit from Painless Performance. This kit allows for the addition of 3 fused circuits to your already existing factory fuseblock. Simply mount the fuse block...

This weatherproof 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...

This TH700R4 Transmission Torque Convertor Lock-Up Kit takes all the guesswork out of controlling the lock-up function on your TH700R4 overdrive transmission. This kit will work with both carbureted and fuel injected engines...

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 Painless...

Perfect for trunk mounted batteries. Both positive and negative cables are 1 gauge and 16 feet in length which allows for them to be attached to the engine for maximum starting current. Helps prevent voltage drop to the...

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...

This 21 circuit universal harness is adaptable to fit the 1960's, 70s, or 80s GM, and Chrysler muscle cars where a bulkhead connector is required. Some minor bulkhead modification may be required. Included with this harness...

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 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...

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...

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 all-new...

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

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

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...

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...

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...

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...

For alternators that produce up to 100 AMPS, this add-on kit provides heavier gauge wiring with connectors to complete the high output alternator installation process quickly, easily and safely. Installation Instructions:...

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 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...

Protect your OEM warranty or simply isolate additional circuits when required. The circuit add-on isolator provides a cost-effective solution when additional circuits are needed, or accessory equipment requires ignition-hot...

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

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

6 Switch Pro Street toggle panel which includes push button start, ignition, fuel pump, water pump/fan and 2 accessories. Panel Dimensions: 8.25" L x 2.5" W x 3" H Made in USA Installation Instructions: Download Here

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

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...

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. ...

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

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 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...

Looking for a simple kit to get your bare-bones ride on the road? This Painless 18 Circuit Customizable Harness was designed for builds with minimized needs. This customizable harness may be just what you need. Wiring...

Relay banks are ideal for powering accessories such as fuel pumps, water pumps, throttle stops, electric cooling fans, nitrous solenoids, etc. and for keeping the relays in a centralized location. Installation Instructions:...

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...

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. ...

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...

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...

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...

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...

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 circuits. This kit...

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...

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...

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

Replacement pigtail for GM HEI distributors. Made in USA

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 ...

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 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...

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...

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...

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. For...

This relay harnesses provides maximum battery voltage to maximize cooling efficiency and to protect the main electrical system from damaging amperage overloads. Set includes: 30 amp relay 30 amp circuit breaker Relay base...

Install extra driving or fog lights easily with this kit. Comes with one lighted switch, switch base, wiring harness, mounting hardware, 30 AMP relay and connectors. Switch can be wired to turn lights on per state law...

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...