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Painless Performance 27-circuit Classic-Plus customizable GM truck chassis harnesses are designed to fit a wide range of trucks, Blazers, and Suburbans—whether C10, C20, or C30. They feature a factory-style bulkhead connector, allowing for easy mounting of the fuse block in the factory location, and have many factory connectors already installed on the harness out of the box. Each wire is custom-printed with the circuit identification, as well as using the GM color codes for easy installation. Wire your Squarebody once—and wire it right with these Painless 27-circuit Classic-Plus customizable GM truck chassis harnesses! Additional features and benefits include: * Each harness comes open-ended (headlight and taillight wiring) with extra length and can be paired with light socket kits (also available by Painless, but sold separately) * Included connectors for: the headlight switch, dimmer switch, wiper motor, ignition switch, blower motor and switch, blower resistor, and instrument cluster
( 35 )
$679.99
$611.99
On Sale
Nothing could make re-wiring your Chevy/GMC truck any easier than Painless Performance harnesses. By adding a factory-style bulkhead connector and additional GM connectors, Painless made their universal harness a custom fit for these popular 2x4 and 4x4 GMC/Chevy pickups. These harnesses will work on pickups, Blazers and Suburbans. Includes circuits for: * Air conditioning * Heat * Camper cover lights * Cigarette lighter * Four wheel drive switch * Backup lights * Charging * Cruise control * Dome light * Electric choke * Electric fuel pump * Emergency flashers * Fan relay activation power * Fused power source * Headlights * Horn (relay) * Ignition coil * Instrument panel lighting and gauges * Park lights * Power antenna * Power door locks * Power windows * Radio/clock (constant and switched) * Starting * Taillights * Third brake lights * Turn signals * Wipers and washer pump
( 43 )
$635.99
$572.39
On Sale
Painless Performance 27-Circuit Classic-Plus Chevy chassis harnesses are designed to fit the 1955, 1956, and 1957 "Tri-Five" models (150, 210, Nomad, and Bel Air)—and they include additional circuits for power options and accessories. The harnesses feature a factory location Painless mounting plate for the fuse block, front and rear lighting sockets, factory and aftermarket instrument cluster harnesses, and dash and turn signal connectors. They utilize GM color-coded high-grade TXL wire with the circuit identification printed on it for easy installation.
( 10 )
$605.99
$545.39
On Sale
Painless Performance 26-circuit 1970-72 Direct-Fit Chevelle harnesses give you everything you need, plus more! Not only are there provisions for connecting standard factory components, they also offer what you need for aftermarket parts. Various pigtails and light sockets are provided, so the harnesses easily fit mismatched cars (1971-72 cars with 1970 front ends, or 1970 cars with 1971-72 rear bumpers). The gauge cluster pigtail allows for the square "full sweep dash" harness and includes a Super Sport cluster pigtail. This makes it easy for those with a full sweep dash to swap to an SS-style cluster at a later date by undoing only one connector and plugging in the separate pigtail. Additional details: * Harness follows the same routing as the factory harness—allowing you to use OE attachment points * Numerous components have the connectors and terminals pre-installed to make connections plug-n-play * All exterior lights have the correct sockets and bulbs pre-installed * Extra length is added to the headlight section to be routed behind the driver side inner fender for a cleaner look * 6-gauge charge wire and 100 amp MIDI fuse * Fully integrated ground circuit * Factory-style precision molded fuse block can easily be installed in the OE location * Updated ATC-style fuses ensure that the 26 circuits stay protected and safe * Backside of the fuse block has an OE-style bulkhead connector so no trimming or cutting of your firewall is required * Plug-and-play design makes the install easy, no matter your options * Included console harness can be easily added at any time * Each pre-terminated connector is tagged for easy routing and installation * 120+ page manual is full of color schematics, photos, and step-by-step instructions Notes: * Options not supported in these harnesses are: the TCS relay, convertible top, rear defrost, wiring for the factory power window/locks, and factory A/C wiring * The switch power wire for OE power window/locks and A/C are included * Also included is a blower motor harness for heat-only systems
( 10 )
$1,014.99
$913.49
On Sale
Painless Performance 24-circuit 1967-68 Camaro and Firebird harnesses are designed as direct replacements for your vehicle. They use a 1969 and newer style bulkhead connector design along with blade fuses and enough circuits to wire up just about any installed upgrade to your 1st generation F-body. Some minor bulkhead modifications are required. Factory original quick connect terminals are included for the in-dash printed circuit board. Each harness includes a detailed manual and each wire is custom printed with the circuit identification as well as using GM color codes for easy installation. Includes circuits for: * Air conditioning/heat * Accessory/cigarette lighter * Accessory/trunk light * Backup lights * Brake lights * Charging * Dome and courtesy lights * Electric choke * Electric fuel pump * Emergency flashers * Fan relay activation power * Fused power source * Headlights * Horn * Ignition coil * Instrument panel lighting and gauges (see notes above) * Parking lights * Power door locks * Power windows * Radio (constant/ignition hot) * Starting * Taillights and license plate light * Third brake light * Turn signals * Wipers and washer pump
( 18 )
$584.99
$526.49
On Sale
Painless Performance 26-circuit 1970-73 direct-fit Camaro harnesses have virtually every connector installed on the harness out of the box. They are split into three sections (engine, interior, and rear) and feature a fully integrated ground circuit. You'll find many upgrades, such as a 6-gauge charge wire and a 150 amp midi fuse. Each kit includes a 150+ page full color step-by-step manual that also covers many alternative wiring options. Each wire is custom printed with the circuit identification as well as using GM color codes for easy installation. Includes circuits for: * Air conditioning/heat * Accessory/cigarette lighter * Backup lights * Brake lights * Charging * Dome light * Electric choke * Emergency flashers * Fan relay activation power * Fused power source * Glove box light * Headlights * Horn * Ignition coil * Instrument panel lighting and gauges (see notes above) * Parking lights * Radio (constant/ignition hot) * Starting * Taillights and license plate light * Turn signals * Wipers
( 7 )
$915.99
$824.39
On Sale
Painless Performance 26-circuit 1969 direct-fit Camaro harnesses are complete for a trouble-free, headache-free install. True to their name, Painless delivers these kits with virtually every connector installed on the harness out of the box. They cover all common options, plus a fully integrated ground circuit. Included are provisions for the RS headlights and taillights, cowl hood, and even a complete console harness! The 26-circuit 1969 Camaro harnesses include: * Numerous components with the connectors and terminals pre-installed to make connections plug-n-play * Exterior lights with the correct sockets and bulbs pre-installed * 6-gauge charge wire and 150 amp MIDI fuse * 120+ page manual full of color schematics, photos, and step-by-step instructions
( 11 )
$1,069.99
$962.99
On Sale
Painless Performance 26-circuit 1969 direct-fit Chevelle harnesses deliver everything you need, plus more! These kits offer provisions for connecting standard factory components, as well as what you'll need for aftermarket components. This includes options like a console sub-harness, two gauge cluster pigtails, and even a fully integrated ground circuit. The 26-circuit harnesses follow all of the same routing found on the factory harnesses, which allows you to utilize the factory attachment points—and extra length has been added to the headlight section to be routed behind the driver side inner fender for a cleaner look. True to their name, Painless Performance supplies what you need for a trouble-free, headache-free wiring job. The 26-circuit 1969 Chevelle harnesses include: * Numerous components with the connectors and terminals pre-installed to make connections plug-n-play * Exterior lights with the correct sockets and bulbs pre-installed * 6-gauge charge wire and 150 amp MIDI fuse * Fully integrated ground circuit * 120+ page manual full of color schematics, photos, and step-by-step instructions
( 7 )
$961.99
$865.79
On Sale
Painless Performance OEM computers feature a stock calibration made for your specific vehicle while removing the VATS (vehicle anti-theft system) making them the perfect solution for your engine swap. Some tuning may be required for your specific application, but the computer will allow you to start your vehicle and get it to a local tuner. Make your engine swap easier with Painless Performance computers.
( 8 )
$199.99
$179.99
On Sale
Painless Performance 26-circuit 1978-81 direct-fit Camaro harnesses have virtually every connector installed on the harness out of the box. They are split into three sections (engine, interior, and rear) and feature a fully integrated ground circuit. You'll find many upgrades in these harnesses such as a 6-gauge charge wire and a 150 amp midi fuse. Each kit includes a 150+ page full color step-by-step manual that also covers many alternative wiring options. Each wire is custom printed with the circuit identification, as well as using GM color codes for easy installation. Includes circuits for: * Air conditioning/heat * Accessory/cigarette lighter * Backup lights * Brake lights * Charging * Dome light * Electric choke * Emergency flashers * Fan relay activation power * Fused power source * Glove box light * Headlights * Horn * Ignition coil * Instrument panel lighting and gauges (see notes above) * Parking lights * Radio (constant/ignition hot) * Starting * Taillights and license plate light * Turn signals * Wipers
( 11 )
$988.99
$890.09
On Sale
Painless Performance 21-circuit customizable Chevy II/Nova harnesses have many of the factory connectors already installed on the harnesses out of the box. They are split into three sections (engine, dome light, and rear) for easy installation and troubleshooting. You'll also find a harness for the factory air, a high-output alternator pigtail with the connector installed, two door jamb switches, 12 instrument panel light bulbs, eight harness mounting clamps, a custom Painless mounting plate for the fuse block, and each wire is custom printed with the circuit identification, as well as using GM color codes for easy installation. Includes circuits for: * Air conditioning/heat * Accessory/cigarette lighter * Backup lights * Brake lights * Charging * Dome light * Electric choke * Emergency flashers * Fan relay activation power * Fused power source * Glove box light * Headlights * Horn * Ignition coil * Instrument panel lighting and gauges (see notes above) * Parking lights * Radio (constant/ignition hot) * Starting * Taillights and license plate light * Turn signals * Wipers
( 6 )
$592.99
$533.69
On Sale
Painless Performance 26-circuit direct-fit 1974-77 Camaro harnesses have virtually every connector installed on the harness out of the box. They are split into three sections (engine, interior, and rear) and feature a fully integrated ground circuit. You'll find many upgrades in these harnesses such as a 6-gauge charge wire and a 150 amp midi fuse. Each kit includes a 150+ page full color step by step manual that also covers many alternative wiring options. Each wire is custom printed with the circuit identification as well as using GM color codes for easy installation. Includes circuits for: * Air conditioning/heat * Accessory/cigarette lighter * Backup lights * Brake lights * Charging * Dome light * Electric choke * Emergency flashers * Fan relay activation power * Fused power source * Glove box light * Headlights * Horn * Ignition coil * Instrument panel lighting and gauges (see notes above) * Parking lights * Radio (constant/ignition hot) * Starting * Taillights and license plate light * Turn signals * Wipers
( 3 )
$939.99
$845.99
On Sale
Painless Performance EFI harnesses are designed for the 1998-2002 LS1 mechanical throttle body engines using a 1999 and up LS1/LS6 ECM with a 4L60E/4L65E automatic or T56 manual transmission. These engines were found in 1998-2002 Camaro and Firebird. These GM LS1/LS6 harnesses will also work on 1997-2004 Throttle-By-Wire (TBW) LS1/LS6 engines which have been changed to mechanical throttle body or any 1999-2006 (4.8, 5.3, and 6.2) Vortec truck engine which has been changed to a factory or aftermarket LS1 intake manifold, mechanical throttle body, and injectors.
( 1 )
$769.98
$692.98
On Sale
Painless Performance GM Gen IV Vortec truck engine wiring harnesses are designed to operate any Chevrolet Gen IV engine coupled with a 4L65E, 4L70E, 4L80E, or 4L85E automatic transmission. They cannot be used with a 4L60E transmission because it's missing the input speed sensor required by the transmission control module. The harnesses support engines with or without cylinder deactivation and/or variable valve timing. They feature an integrated weatherproof fuse block. Painless Performance GM Gen IV Vortec truck engine wiring harnesses have 10 fused power circuits, including injectors, ignition coils, oxygen sensors, ECM ignition, MAF/VLOM, and fuel pump. They also use an integrated 30 amp fuel pump, 40 amp cooling fan relays, and two ignition relays. The harnesses have an extra 4 ft. of length between the ECM connections and the main engine breakout.
( 1 )
$840.99
$756.89
On Sale
Painless Performance 26-circuit 1968 direct-fit Chevelle harnesses deliver everything you need, plus some extras! These kits offer provisions for connecting standard factory components, but also what you'll need for aftermarket components. This includes options like a console sub-harness, two gauge cluster pigtails, and even a fully integrated ground circuit. The 26-circuit harnesses follow all of the same routing found on the factory harnesses, which allows you to utilize the factory attachment points, with extra length added to the headlight section to be routed behind the driver side inner fender for a cleaner look. True to their name, Painless Performance supplies what you need for a trouble-free, headache-free wiring job. The 26-circuit 1968 Chevelle harnesses include: * Numerous components with the connectors and terminals pre-installed to make connections plug-n-play * Exterior lights with the correct sockets and bulbs pre-installed * 6-gauge charge wire and 150 amp MIDI fuse * Fully integrated ground circuit * 120+ page manual full of color schematics, photos, and step-by-step instructions
( 2 )
$934.99
$841.49
On Sale
Painless Performance headlight door wiring harnesses feature a bulletproof, OEM-style fuse block. They include factory connectors and wiring to function the original equipment headlight door activators. Order the model recommended for your vehicle.
( 2 )
$124.99
$112.49
On Sale
Painless Performance ignition coil wiring harnesses are backed by over 30 years of wiring solutions that are rigorously tested. These replacement harnesses are crafted with the highest quality wires and are color-coded and assembled with weathreproof connectors to make your wiring project, well … Painless!
( 3 )
$63.99
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$77.99
$57.59
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$70.19
On Sale
Painless Performance benchtop flash pigtails enable you to tune or read your PCM outside the vehicle. The pigtails connect to any 12 V source and include PCM and OBDII connections. Benchtop flash your LS Series PCMs effortlessly when using Painless Performance benchtop flash pigtails. They are available for a wide range of Chevy applications from the 1990s and up.
( 2 )
$149.99
$134.99
On Sale
Painless Performance LS ignition coil wiring harness extensions get your coils off of the valve covers. With factory color-coded wires and weatherproof connectors, these harnesses make your job easier to accomplish. They're available in 2, 3, or 4 ft. pigtail lengths. Move your coils with Painless Performance LS coil extension harnesses.
( 1 )
$89.99
$80.99
On Sale
These connector cables from Painless Performance are designed for use with TBI and TPI coils. Connector cables are available to connect the external coil to the distributor, and to connect the power and tachometer to the coil.
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$38.99
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$46.99
$35.09
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$42.29
On Sale
Painless VATS computer chips allow you to bypass the factory programming, making the wiring in your engine swap a snap. Since 1989, most GM fuel injection systems have incorporated a Vehicle Anti-Theft System (VATS) programmed into the stock EPROM or PCM. This means the engine will not run if it is transplanted into a vehicle without the original vehicle steering column and decoder module. If you have one of these engines and your computer has the factory programming, you need Painless VATS computer chips to make your job trouble-free.
( 11 )
$49.99
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$52.99
$44.99
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$47.69
On Sale
Painless Performance 4L60E/4L80E vehicle speed sensor repair pigtails enable you to extend your VSS wiring for a 4x4 transfer case setup or repair a damaged pigtail. The Painless VSS pigtail gives you 24 in. of wire, high-quality barrel connectors, and mastic heat-shrink to make a weatherproof connection when extending or repairing your 4L60E or 4L80E VSS wires at the transmission.
Not Yet Reviewed
$14.99
$13.49
On Sale
Replace your worn-out distributor adapter pigtails with Painless Performance! Painless Performance LT1 distributor adapter pigtails are designed to be original-style replacements for LT1 distributors.
( 4 )
$29.99
$26.99
On Sale
Painless Performance EGR adapter harnesses are just what you'll need for your 454 swap. Designed to work with specific standard and extra-length Painless GM TBI harnesses, these EGR adapters will mate the harness to your throttle body perfectly when fitting the TBI harness to your 7.4L application.
( 1 )
$19.99
$17.99
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