Why shop with us
Brand: Painless Performance
Customizable Painless Performance 10127 Chassis Harness, Mopar Color Coded - 21 Circuits
Customizable 21-Circuit Chassis Harness features Mopar color coding.
Only 3 left in stock — order soon
No hidden fees — taxes included in the price & Free Shipping.
We accept major cards and digital wallets. Additional installment plans, when available, are offered by Shopify at checkout based on order eligibility.
Customizable Painless Performance 10127 Chassis Harness, Mopar Color Coded - 21 Circuits
This Customizable 21-Circuit Mopar Chassis Harness is designed for Mopar enthusiasts who want to maintain the “Mopar Color Code” throughout their classic Chrysler, Dodge, and Plymouth vehicles while updating their wiring system with blade-style fuses and a unique, covered micro-fuse block that is compact for easy mounting.
Each wire is printed with the circuit identification and features an auxiliary circuit with a prewired 20-amp relay in the harness for accessories such as fog lights or an electric fuel pump.
The harness does not include the bulkhead connector that most Mopar vehicles had throughout the 1960s and 1970s.
The circuit known for burning up was the Ammeter circuit going through the firewall bulkhead.
To solve this issue, Painless does not support the Ammeter on these vehicles and provides a 3.5” by 3.5” black powder-coated plate to cover the original bulkhead hole in the firewall.
Key Features
Specifications
- Length
- 14.5 lb
- Width
- 10.25 lb
- Height
- 5.25 lb
- Weight
- 17.65 lb
- ASIN
- B000VTUAK0
- UPC
- 749823101272
- Ships From
- United States
- Brand
- Painless Performance
Frequently Asked Questions
About Customizable Painless Performance 10127 Chassis Harness, Mopar Color Coded - 21 Circuits
01 What is the circuit count of the Customizable Chassis Harness?
The Customizable Chassis Harness has 21 circuits.
02 What color coding does the harness use?
The harness uses Mopar color coding.
03 Where is the Painless harness produced?
The Painless harness is produced in Fort Worth, TX.
04 What is the ASIN for this product?
The ASIN for this product is B000VTUAK0.
05 What is the UPC / barcode for this product?
The UPC/barcode for this product is 749823101272.
06 Where does this ship from?
Orders ship from our fulfillment center in Dover, Delaware, USA.
07 How many days will it take to arrive?
Orders ship within 1-2 business days and typically arrive within 4-5 business days via free standard shipping -- usually by Oct 15.
08 Does this product accept returns?
Yes -- this item can be returned within 15 days of delivery for a free return by mail. See our return policy for full details.

