20 Best Psi Wiring Harness [2024]

Are you looking for the best Psi Wiring Harness? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling Psi Wiring Harness.

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# Preview Product
1 Mophorn Standalone Wiring Harness, Extra Long Engine Wiring Harness Kit, Complete Wiring Harness... Mophorn Standalone Wiring Harness, Extra Long Engine Wiring Harness Kit, Complete Wiring Harness...
2 HPI 97-06 LS1 STANDALONE Wire Harness 4.8 5.3 6.0 VORTEC w/60A Relay (Drive by Cable) (RED/Blue PCM)... HPI 97-06 LS1 STANDALONE Wire Harness 4.8 5.3 6.0 VORTEC w/60A Relay (Drive by Cable) (RED/Blue...
3 Painless Performance 10102 Classic Customizable Chassis Harness, Key in Dash, 21 Circuits Painless Performance 10102 Classic Customizable Chassis Harness, Key in Dash, 21 Circuits
4 WMPHE Engine Wiring Harness Professional Standalone Wiring Harness with 4L60E Transmission Drive By... WMPHE Engine Wiring Harness Professional Standalone Wiring Harness with 4L60E Transmission Drive...
5 A-Team Performance Standalone Wiring Harness W/4L60E Drive By Cable Compatible With 4.8 5.3 6.0 GM... A-Team Performance Standalone Wiring Harness W/4L60E Drive By Cable Compatible With 4.8 5.3 6.0...
6 Nilight - NI -WA 06 LED Light Bar Wiring Harness Kit - 2 Leads 12V On Off Switch Power Relay Blade... Nilight - NI -WA 06 LED Light Bar Wiring Harness Kit - 2 Leads 12V On Off Switch Power Relay...
7 Nilight 10018W 14AWG DT Connector Wiring Harness Kit Bar 12V On Off Switch Power Relay Blade Fuse... Nilight 10018W 14AWG DT Connector Wiring Harness Kit Bar 12V On Off Switch Power Relay Blade Fuse...
8 Nilight Wiring Harness Kit 14AWG Heavy Duty 12V On-Off Switch Power Relay Blade Fuse for Off Road... Nilight Wiring Harness Kit 14AWG Heavy Duty 12V On-Off Switch Power Relay Blade Fuse for Off Road...
9 Nilight LED Light Bar Wiring Harness Kit 14AWG Heavy Duty 12V 5Pin Rocker Switch Laser On off... Nilight LED Light Bar Wiring Harness Kit 14AWG Heavy Duty 12V 5Pin Rocker Switch Laser On off...
10 Nilight - 10016W 16AWG DT Connector Wiring Harness Kit LED Light Bar 12V On Off Switch Power Relay... Nilight - 10016W 16AWG DT Connector Wiring Harness Kit LED Light Bar 12V On Off Switch Power...
11 HPI 03-07 LS Vortec Standalone Harness 4.8 5.3 6.0 (Drive by Wire) (Green/Blue PCM) & MULTEC/Delphi,... HPI 03-07 LS Vortec Standalone Harness 4.8 5.3 6.0 (Drive by Wire) (Green/Blue PCM) &...
12 Nilight 2PCS 16 AWG 10 Feet Wiring Harness Extension Kit for LED Work Light Bar Led Pods Off Road... Nilight 2PCS 16 AWG 10 Feet Wiring Harness Extension Kit for LED Work Light Bar Led Pods Off Road...
13 Auto Parts Prodigy Wiring Harness Kit 21 Circuit Long Wires Standard Color Wiring Harness Kit for... Auto Parts Prodigy Wiring Harness Kit 21 Circuit Long Wires Standard Color Wiring Harness Kit for...
14 Nilight - 10019W LED Light Bar Wiring Harness Kit 12AWG Heavy Duty 12V 5Pin Rocker Switch Laser On... Nilight - 10019W LED Light Bar Wiring Harness Kit 12AWG Heavy Duty 12V 5Pin Rocker Switch Laser...
15 Nilight 10011W 16AWG Wiring Harness Kit-2 Leads LED Light Bar 12V On/Off 5 Pin Rocker Switch Power... Nilight 10011W 16AWG Wiring Harness Kit-2 Leads LED Light Bar 12V On/Off 5 Pin Rocker Switch...
16 Nilight - 10036W 14AWG 11.5 Feet DT Connector Wiring Harness Kit LED Light Bar 12V On Off Switch... Nilight - 10036W 14AWG 11.5 Feet DT Connector Wiring Harness Kit LED Light Bar 12V On Off Switch...
17 Ecosmart POU 3.5 Point of Use Electric Tankless Water Heater, 3.5KW@120-Volt, 6 x 11 x 3 Inch Ecosmart POU 3.5 Point of Use Electric Tankless Water Heater, 3.5KW@120-Volt, 6 x 11 x 3 Inch
18 Cheriezing 1997-2006 DBC LS1 Stand Alone Harness w/ 4L60E 4.8 5.3 6.0 Vortec Drive by Cable Wiring... Cheriezing 1997-2006 DBC LS1 Stand Alone Harness w/ 4L60E 4.8 5.3 6.0 Vortec Drive by Cable...
19 Complete Wiring Harness kit With Electrics Stator Coil CDI Wiring Harness Solenoid Relay Spark Plug... Complete Wiring Harness kit With Electrics Stator Coil CDI Wiring Harness Solenoid Relay Spark...
20 Painless Performance 10101 Classic Customizable Chassis Harness - GM Keyed Column - 21 Circuits Painless Performance 10101 Classic Customizable Chassis Harness - GM Keyed Column - 21 Circuits
Bestseller No. 1
Mophorn Standalone Wiring Harness, Extra Long Engine Wiring Harness Kit, Complete Wiring Harness...
  • Excellent Conductivity: The complete wiring harness is made of high-quality copper core wires, which has lower eccentricity and resistance, well...
  • Durable Wiring Harness: The wrapped plastic surfaces can stand high temperatures, all kinds of chemical reagent, strong impact, and press. The...
  • Complete Accessories: The complete engine and transmission wiring harness including all engine and transmission sensor connectors, EV1 fuel injectors,...
  • Explicit Instructions: Multiple circuit wiring harnesses are all coded by GM color for easier installation. Completely plug and play with four wire...
  • Wide Application: The standalone swap wiring is suitable for 97 - 02 LS1/LS6 engines with the mechanical throttle body and T56.
Bestseller No. 2
HPI 97-06 LS1 STANDALONE Wire Harness 4.8 5.3 6.0 VORTEC w/60A Relay (Drive by Cable) (RED/Blue PCM)...
  • (RED/BLUE PCM CONNECTOR & EV1, FUEL INJECTOR CONNECTORS, email us if multec/delphi or ev6 needed) (4L60E)(DRIVE BY CABLE)
  • NOTE: CHECK WITH US IF YOU ARE UNSURE ABOUT FITMENT. These are after market harnesses and ready to ship (WE CAN SOLVE 99% OF ANY PROBLEMS. SO PLEASE...
  • All Harnesses are long enough for the PCM to be mounted under the dash (ADDED 36" FOR EASY COMPUTER MOUNTING)
  • 3 wire MAF and a 1 wire alternator. Has the adapter 4L80E harness that you will have to pin 2 wires into the blue pcm. Comes with ENGLISH MANUAL.
  • There are times when customers may need fuel injector adapters. We offer these adapters, If you request them, during or after the order. Please...
Bestseller No. 3
Painless Performance 10102 Classic Customizable Chassis Harness, Key in Dash, 21 Circuits
  • Printed Wiring and Full Color Installation Manual: Every wire is printed with the circuit identification and uses GM color codes for easy...
  • Upgraded ATO bladed fuses: Leave antiquated glass fuses in the past where they belong and update to modern bladed fuses
  • Machine Crimped Fuse Block: Painless uses OE style machine crimping and pre-terminates the fuse block, leaving the installer with only one end to...
  • American Made, American Proud Since 1990: Every Painless harness is proudly produced in Fort Worth, TX, where we also staff our unmatched Technical...
Bestseller No. 4
WMPHE Engine Wiring Harness Professional Standalone Wiring Harness with 4L60E Transmission Drive By...
  • Note: This is gen3 blue green ecm connector. In order not to delay your time, please be sure to confirm whether it is suitable for you before buying....
  • Provided: engine and transmission wiring harness including all engine and transmission sensor connectors, dash connections, which include speedometer,...
  • Replacement for drive by wire LS3 4L60E engine automatic transmission harness 2003 to 2007. 12-14 volts, suitable for 03 to 07 annual output automatic...
  • A grommet is installed on the wiring harness, including wires, and the design of the sliding bellows sealing ring improves the durability of the...
  • Please check whether it is suitable for you before buying, we recommend professional installation
Bestseller No. 5
A-Team Performance Standalone Wiring Harness W/4L60E Drive By Cable Compatible With 4.8 5.3 6.0 GM...
  • Compatible with for engines from '97 - '04 LS1 and LS6 Corvettes and '99-'06 drive-by-cable GM trucks with 4L60E transmissions.
  • Throttle: Drive-by-Cable
  • Injector Plug Style: EV1
  • Harness Length:Standard
SaleBestseller No. 6
Nilight - NI -WA 06 LED Light Bar Wiring Harness Kit - 2 Leads 12V On Off Switch Power Relay Blade...
  • Universal fit: Compatible with all automobiles, boats and devices equipped with a 12 volt power source
  • Circuit protection: Power relay-safety protection and conversion circuit. Blade fuse protects the circuit when overcurrent or short circuit occurs.
  • Illuminated switch: 3 pin on/off rocker switch with red indicator light when truing on, easy to turn on or off, has been passed test of 5,000 times...
  • Two available leads: With 2 sets of light output connectors for dual lighting fixtures less than 180W, the connection is more stable.
  • Package include:1 x wiring harness kit, 1 x instructions.
SaleBestseller No. 7
Nilight 10018W 14AWG DT Connector Wiring Harness Kit Bar 12V On Off Switch Power Relay Blade Fuse...
  • Universal fit this harness kit can be widely used in all automobiles, boats and devices that use a 12V power source
  • Simple connection equipped with DT connector no wiring between LED light bar and the harness kit simple and easy installation
  • Heavy duty harness with wire gauge of 14 AWG this heavy duty wiring harness can be used to connect a light bar within 300W
  • Circuit protection, power relays together with inline blade fuse to defense against overcurrent and short circuit ensuring safety
  • Package includes 1 x 12 foot wiring harness kit 1 x instructions
SaleBestseller No. 8
Nilight Wiring Harness Kit 14AWG Heavy Duty 12V On-Off Switch Power Relay Blade Fuse for Off Road...
  • Universal fitment: the wiring harness is compatible with all automobiles, boats and devices equipped with a 12V DC power source
  • 12 feet harness: 12ft heavy-duty harness, 14-gauge stranded wire, up to 380W load capacity, the length from relay to switch is extendable
  • Illuminated switch: 3 pin on/off rocker switch with Red Indicator light when truing on, easy to turn on or off, long service life
  • Circuit protection: power relay for safety protection. Blade fuse acts as the first Line of defense against overcurrent and short circuit
  • Package include: 1 x 12 feet wiring harness, 1 x instructions
SaleBestseller No. 9
Nilight LED Light Bar Wiring Harness Kit 14AWG Heavy Duty 12V 5Pin Rocker Switch Laser On off...
  • Premium quality: good electrical conductivity, outstanding bending performance, high temperature and melting resistant, longer lifespan
  • Efficient protection: power relay for safety protection and conversion circuit, blade fuse protect against overcurrent and short circuit
  • Durable switch: high quality 5 pin on-off rocker switch with laser-etched pattern, simple to install and convenient to use
  • Two leads Available: with 2 Sets of light output connectors for dual lighting fixtures less than 300W, the connection is more stable
  • Package include: 1 x wiring harness kit ,5-pin rocker switch, 1 x instructions
SaleBestseller No. 10
Nilight - 10016W 16AWG DT Connector Wiring Harness Kit LED Light Bar 12V On Off Switch Power Relay...
  • Universal fit: this harness kit is compatible with all automobiles, boats and devices that use a 12V power source
  • Two leads Available: with 2 Sets of light output connectors for dual lighting fixtures less than 180W, more stable connection
  • Simple connection: equipped with DT connector, no wiring between LED light bar and the harness kit, simple and easy installation
  • Circuit protection: power relays together with inline blade fuse to defense against overcurrent and short circuit, ensuring safety
  • Package includes: 1 x 12 feet wiring harness kit, 1 x instructions
Bestseller No. 11
HPI 03-07 LS Vortec Standalone Harness 4.8 5.3 6.0 (Drive by Wire) (Green/Blue PCM) & MULTEC/Delphi,...
  • WE SHIP PRIORITY MAIL. DELIVERED WITHIN 6 days ! (GREEN/BLUE PCM CONNECTOR & MULTEC/DELPHI FUEL INJECTOR CONNECTORS) (for ev1 or ev6 injector...
  • NOTE: CHECK WITH US IF YOU ARE UNSURE ABOUT FITMENT. These are after market harnesses and ready to ship (WE CAN SOLVE 99% OF ANY PROBLEMS. SO PLEASE...
  • These harnesses are designed for retrofitting '03 - '07 Vortec engines (4.8, 5.3, 6.0-Liter) and 4L80E transmissions into older muscle cars and street...
  • 36" ADDED LENGTH FOR EASY COMPUTER MOUNTING Made in the USA
  • 1200 Degree Fiberglass Braid on All Circuits Ran by Heat.... All Factory CPA (Connector Position Assurance Locks
Bestseller No. 12
Nilight 2PCS 16 AWG 10 Feet Wiring Harness Extension Kit for LED Work Light Bar Led Pods Off Road...
  • 10ft Extension Wires: 16AWG wiring harness extension cable. It’s enough to extend your wiring harness where you want to install lighting location to...
  • High-quality: The Wiring Harness Extension Kit made of 16 Gauge flexible strand copper wire, rubber protected, High quality PVC insulation tube...
  • Play and Plug design makes the extension wires installed easily
  • Wide Application: Suitable for almost all 12V battery vehicles, such as jeeps, ATVs, UTVs, cars, motorcycles, ships, yachts and trailers
  • Package Include: 2 x Wiring Harness Extension Kit
Bestseller No. 13
Auto Parts Prodigy Wiring Harness Kit 21 Circuit Long Wires Standard Color Wiring Harness Kit for...
  • GM COLOR CODED - 21 Circuit Wiring Harness are all coded by GM color for easier installation
  • INCLUDED CIRCUITS: The circuits included: horn, fan, dome light, hazard, radio, cigarette lighter, door locks, brake, headlights, trunk light, gauges,...
  • INSTRUCTIONS: Comes with detailed instructions and have specific pages for GM, Ford and Mopar - Professional Install Recommended
  • EXTRA LONG WIRES: Wires are extra long to help accommodate whatever build you are working on
  • HIGH QUALITY MATERIALS: GXL 125 high temp cross linked polyethylene jacketed wire that is grease, oil, gas, and acid resistant.
SaleBestseller No. 14
Nilight - 10019W LED Light Bar Wiring Harness Kit 12AWG Heavy Duty 12V 5Pin Rocker Switch Laser On...
  • Universal fitment this wiring harness is compatible with all automobiles, boats and devices equipped with a 12V DC power source
  • Efficient protection, power relay for safety protection and conversion circuit blade fuse protected against overcurrent and short circuit
  • Great switch built-in two premium LEDs emit soft light to illuminate the patterns easy for you to find the switch in the dark
  • Premium quality, excellent electrical conductivity outstanding bending performance, high temperature and melting resistant longer lifespan
  • Package includes 1 x wiring harness kit 1 x 5 pin LED rocker switch 1 x instructions
SaleBestseller No. 15
Nilight 10011W 16AWG Wiring Harness Kit-2 Leads LED Light Bar 12V On/Off 5 Pin Rocker Switch Power...
  • Two Available leads: 12 feet extendable wiring harness, two Sets of light output connectors for dual light fixtures less than 180W
  • Efficient protection: power relay and inline blade fuse ACT as the first Line of defense against overcurrent and short circuit
  • Shining in the dark: built-in two premium LEDs emit soft light to illuminate the patterns, easy for you to find the switch in the dark
  • Wide application: suitable for almost all 12V battery vehicles, such as jeeps, ATVs, UTVs, cars, motorcycles, ships, yachts and trailers
  • Package include: 1 x wiring harness kit, 1 x 5 pin LED rocker switch, 1 x instructions
SaleBestseller No. 16
Nilight - 10036W 14AWG 11.5 Feet DT Connector Wiring Harness Kit LED Light Bar 12V On Off Switch...
  • Universal fit this harness kit is compatible with all automobiles boats and devices that use a 12V power source
  • Two leads Available with 2 Sets of light output connectors for dual lighting fixtures ,Heavy duty harness with a wire gauge of 14 AWG ,this...
  • Simple connection equipped with DT connector no wiring between LED light bar and the harness kit simple and easy installation
  • Circuit protection power relay together with inline blade fuse to defense against overcurrent and short circuit ensuring safety
  • Package include 1 x 11.5 feet wiring harness kit
Bestseller No. 17
Ecosmart POU 3.5 Point of Use Electric Tankless Water Heater, 3.5KW@120-Volt, 6 x 11 x 3 Inch
  • Can provide hot water for one sink at 0.5 GPM in warmer climates
  • Requires 1 x 30 amp breaker and 10 AWG wire
  • For one sink at 0.5 GPM in colder climates the POU 6 is recommended
  • Amperage Draw 29 amp. kW - 3.5 kW
  • Connection Fittings 1/2" NPT
Bestseller No. 18
Cheriezing 1997-2006 DBC LS1 Stand Alone Harness w/ 4L60E 4.8 5.3 6.0 Vortec Drive by Cable Wiring...
  • 【Excellent Conductivity】- The complete wiring harness is made of high-quality copper core wires, which has lower eccentricity and resistance, well...
  • 【Durable Wiring Harness】- The wrapped plastic surfaces can stand high temperatures, all kinds of chemical reagent, strong impact, and press. The...
  • 【Complete Accessories】- The complete engine and transmission wiring harness including all engine and transmission sensor connectors, EV1 fuel...
  • 【Explicit Instructions】- Multiple circuit wiring harnesses are all coded by GM color for easier installation. Completely plug and play with four...
  • 【Wide Application】- The standalone swap wiring is suitable for 97 - 06 LS1/LS6 engines with the mechanical throttle body. - 4L60E
Bestseller No. 19
Complete Wiring Harness kit With Electrics Stator Coil CDI Wiring Harness Solenoid Relay Spark Plug...
  • Brand New and High quality complete wiring harness electrics wire loom Kit,copper thickening Wiring Harness, More durable and safe.
  • Fits for most of Chinese made 150CC 200CC 250CC ATV / QUAD and Dirt Bike Suitable for brand of engines: Lifan, Loncin, Ducar, Shineray, Zongshen, YX...
  • DO NOT FIT: 1. GY6 engine motorbikes and other Mini ATV / QUAD 49cc 50cc 80cc 90cc 100cc 110cc 125cc with different stator or CDI.So please compare...
  • Please check the pictures carefully before buying, especially the pictures of magneto stator.Please check the wiring diagram first before...
  • Satisfaction guaranteed! Try any product we sell for a full 30 days. If not completely satisfied, return it to us for a no-hassle refund or credit.
Bestseller No. 20
Painless Performance 10101 Classic Customizable Chassis Harness - GM Keyed Column - 21 Circuits
  • Printed Wiring and Full Color Installation Manual: Every wire is printed with the circuit identification and uses GM color codes for easy...
  • Upgraded ATO bladed fuses: Leave antiquated glass fuses in the past where they belong and update to modern bladed fuses
  • Machine Crimped Fuse Block: Painless uses OE style machine crimping and pre-terminates the fuse block, leaving the installer with only one end to...
  • When reliability and performance can't be compromised, you want TXL Wire - not the inexpensive primary wire you find in other harnesses; High strand...
  • American Made, American Proud Since 1990: Every Painless harness is proudly produced in Fort Worth, TX, where we also staff our unmatched Technical...

Having trouble finding a great Psi Wiring Harness?

This problem is well understood by us because we have gone through the entire Psi Wiring Harness research process ourselves, which is why we have put together a comprehensive list of the best Psi Wiring Harnesss available in the market today.

After hours of searching and using all the models on the market, we have found the best Psi Wiring Harness for 2023. See our ranking below!

How Do You Buy The Best Psi Wiring Harness?

Do you get stressed out thinking about shopping for a great Psi Wiring Harness? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching Psi Wiring Harness, which is why we have assembled a comprehensive list of the greatest Psi Wiring Harness available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Psi Wiring Harness that you consider buying. Your questions might include the following:

  • Is it worth buying an Psi Wiring Harness?
  • What benefits are there with buying an Psi Wiring Harness?
  • What factors deserve consideration when shopping for an effective Psi Wiring Harness?
  • Why is it crucial to invest in any Psi Wiring Harness, much less the best one?
  • Which Psi Wiring Harness are good in the current market?
  • Where can you find information like this about Psi Wiring Harness?

We’re convinced that you likely have far more questions than just these regarding Psi Wiring Harness, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for Psi Wiring Harness, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Psi Wiring Harness. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an Psi Wiring Harness buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Psi Wiring Harness currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of Psi Wiring Harness has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an Psi Wiring Harness?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your Psi Wiring Harness.
  5. Customer Ratings: Number ratings grade Psi Wiring Harness objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Psi Wiring Harness.
  7. Product Quality: You don’t always get what you pay for with an Psi Wiring Harness, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an Psi Wiring Harness is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining Psi Wiring Harness information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding Psi Wiring Harness is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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FAQ:

Q: Where is a psi harness made?

A: A PSI Harness is made with top quality material right here in the USA. Our customer service is second to none and can be reached by phone five days a week and emailed 24 hours a day. We have a combined 25+ years experience.

Q: Why add a PCM to your psi harness?

A: A PSI PCM is a great addition to your PSI Harness as they are tuned specifically for your set up! PSI will calibrate the PCM for the correct MAF, Injector Size, Throttle Body type, Tire Size & Gear Ratio as well as shut off the VATS (Vehicle Anti-Theft System).

Q: How long does it take to ship a psi LS swap harness?

A: PSI LS Swap harnesses that are in stock ship in 1-3 business days! Due to COVID-19/ pandemic restrictions, and supply chain issues, some harnesses may experience an extended shipping lead time.

Q: Who is psi?

A: PSI specializes in the design and manufacture of Standalone Wiring Harnesses for GM Gen II, III, IV, & V LS/LT based engines and transmissions.