--- product_id: 15819723 title: "Painless Performance 10102 Classic Customizable Chassis Harness, Key in Dash, 21 Circuits" brand: "painless" price: "£397.26" currency: GBP in_stock: true category: "Painless" url: https://www.desertcart.co.uk/products/15819723-painless-performance-10102-classic-customizable-chassis-harness-key-in-dash store_origin: GB region: United Kingdom --- # Full color, GM-coded wiring manual 21 circuits for full vehicle coverage Made in USA with expert support Painless Performance 10102 Classic Customizable Chassis Harness, Key in Dash, 21 Circuits **Brand:** painless **Price:** £397.26 **Availability:** ✅ In Stock ## Summary > ⚡ Wire your ride like a pro — effortless, reliable, and built to perform! ## Quick Answers - **What is this?** Painless Performance 10102 Classic Customizable Chassis Harness, Key in Dash, 21 Circuits by painless - **How much does it cost?** £397.26 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/15819723-painless-performance-10102-classic-customizable-chassis-harness-key-in-dash) ## Best For - painless enthusiasts ## Why This Product - Trusted painless brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Modern Safety Upgrade:** Upgraded ATO bladed fuses replace outdated glass fuses for reliable protection. - • **OEM Quality Assurance:** Machine-crimped fuse block pre-terminated for professional-grade durability. - • **Plug & Play Precision:** Printed wiring with GM color codes makes installation foolproof and fast. - • **Universal Fit Mastery:** Designed to adapt seamlessly to hot rods, muscle cars, and full-size vehicles alike. - • **Support When You Need It:** Proudly American-made with expert technical support just a call away. ## Overview The Painless Performance 10102 Classic Customizable Chassis Harness offers a universal 21-circuit wiring solution with GM color-coded printed wiring and a full-color installation manual. Featuring upgraded ATO bladed fuses and a machine-crimped fuse block, this American-made harness ensures professional-grade durability and ease of installation for hot rods, muscle cars, and full-size vehicles. Backed by expert technical support, it’s the go-to choice for wiring your classic car right the first time. ## Description This Painless Performance 21-circuit chassis harness is our most widely used customizable automotive wiring harness. This universal kit is great for hot rod or street rod builds, but you'll find that it's easily adaptable to almost any vehicle and has enough length to handle full size and muscle cars. This harness comes with open ended ignition switch wires that can easily be adapted to any ignition switch out there. For those using a GM Keyed Column, Painless part number 10101 comes with a Pre-Terminated GM ignition switch connector. Included with this harness are the following parts: GM engineered fuse block & Painless mounting bracket, GM turn signal connectors, pre wired plugs for the headlights & dimmer switch. Each wire is printed with the circuit identification as well as using GM color codes for easy installation. Wire your classic car once and wire it right with a Painless Customizable wiring harness. ## Features - Printed Wiring and Full Color Installation Manual: Every wire is printed with the circuit identification and uses GM color codes for easy installation; Paired with the highly detailed full color installation manual, Painless makes a tedious task simple.Fit Type: Universal Fit - 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 terminate - American Made, American Proud Since 1990: Every Painless harness is proudly produced in Fort Worth, TX, where we also staff our unmatched Technical Support department.; Need help during installsimply give us a call ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0006B3UF0 | | Best Sellers Rank | #179,775 in Automotive ( See Top 100 in Automotive ) #740 in Automotive Replacement Electrical Wiring Harnesses | | Brand | Painless | | Customer Reviews | 4.7 4.7 out of 5 stars (239) | | Date First Available | February 13, 2005 | | Is Discontinued By Manufacturer | No | | Item Weight | 7.54 pounds | | Item model number | 10102 | | Manufacturer | Painless Performance Products, LLC | | Manufacturer Part Number | 10102 | | Model | 10102 | | OEM Part Number | 10102 | | Position | Center | ## Images ![Painless Performance 10102 Classic Customizable Chassis Harness, Key in Dash, 21 Circuits - Image 1](https://m.media-amazon.com/images/I/81W2unxxvWL.jpg) ![Painless Performance 10102 Classic Customizable Chassis Harness, Key in Dash, 21 Circuits - Image 2](https://m.media-amazon.com/images/I/71uvKOUHadL.jpg) ![Painless Performance 10102 Classic Customizable Chassis Harness, Key in Dash, 21 Circuits - Image 3](https://m.media-amazon.com/images/I/81hx9qNsYJL.jpg) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/15819723-painless-performance-10102-classic-customizable-chassis-harness-key-in-dash](https://www.desertcart.co.uk/products/15819723-painless-performance-10102-classic-customizable-chassis-harness-key-in-dash) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-07-16*