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Painless Performance 22-Circuit 1965-66 Mustang Chassis Harnesses for 1965-1966 MUSTANG - 20120 Wiring Harness, 22-Circuit, Dash Ignition, Front Mount Fuse Block, Spade Fuse, Ford, Kit

SKU: PRF20120

Wiring Harnesses

Painless Performance 22-Circuit 1965-66 Mustang Chassis Harnesses for 1965-1966 MUSTANG - 20120 Wiring Harness, 22-Circuit, Dash Ignition, Front Mount Fuse Block, Spade Fuse, Ford, Kit

SKU: PRF20120

Wiring Harnesses
A$2,124.93
IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

IMPORTANT NOTICE: Will not fit 1964 1/2 Mustangs. Includes wires for ammeter, fuel gauge, oil gauge, tachometer, temperature gauge, and voltmeter. The number of circuits does not reflect the number of fuses; some circuits share the same fuse.

Painless Performance 22-circuit direct fit 1965-66 Mustang chassis harness have many of the factory connectors already installed on the harnesses out of the box. They use unique covered micro-fuse blocks and also feature auxiliary circuits with a 20 amp relay for accessories such as fog lights or an electric fuel pump. Each wire is custom printed with the circuit identification as well as using Ford color codes for easy installation.

Includes circuits for:


* Air conditioning/heat
* Accessory relay
* Accessory/cigarette lighter
* Backup lights
* Brake lights
* Charging
* Courtesy and dome lights
* 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 lights
* Turn signals
* Wipers and washer pump

Part Type

1965-66 Mustang Chassis Harness 22 Circuits

Data: v4.2 - Upd: 2026-09-29 09:52:37

Specifications

Product Attributes - Brand
Painless Performance
Product Attributes - Manufacturer's Part Number
20120
Product Attributes - Part Type
Wiring Harnesses
Product Attributes - Product Line
Painless Performance 22-Circuit 1965-66 Mustang Chassis Harnesses
Product Attributes - UPC
749823201200
Product Attributes - Circuit Quantity
22
Product Attributes - Ignition Key Location
Dash
Product Attributes - Harness Length
Standard
Product Attributes - Fuse Block Included
Yes
Product Attributes - Fuse Block Location
Front
Product Attributes - Fuse Style
ATO/ATC
Product Attributes - Quantity
Sold as a kit.
Product Attributes - Notes
Will not fit 1964 1/2 Mustangs. Includes wires for ammeter, fuel gauge, oil gauge, tachometer, temperature gauge, and voltmeter. The number of circuits does not reflect the number of fuses; some circuits share the same fuse.

Reference Information

Brand Name/s Painless Performance
StreetFX SKU prf20120
SFX Item ID 5074532
Supplier Item Code 5074532
Manufacturer SKU 20120
Manufacturer UPC 749823201200
Alternative References PWI20120, 22-Circuit

Compatibility

Application Data
  • MakeFORD
    ModelMUSTANG
    SubmodelBASE
    Beginning Year1965
    Ending Year1965
    Engine TypeL6
    Liter2.8
    CC2786
    CID170
    Engine FamilyFORD L6 GAS
    Engine Size2.8L/170
    Wiring Harness ClassificationChassis Wiring Harness
    DrivetrainRWD
    Application Notes22 Circuit Direct Fit Chassis Harness; 12 Fuses w/Horn Relay; Grommet Firewall Pass-Through
    Engine VIN CodeU
    RegionUSA
  • MakeFORD
    ModelMUSTANG
    SubmodelBASE
    Beginning Year1965
    Ending Year1965
    Engine TypeV8
    Liter4.3
    CC4261
    CID260
    Engine FamilyFord small block Windsor
    Engine Size4.3L/260
    Wiring Harness ClassificationChassis Wiring Harness
    DrivetrainRWD
    Application Notes22 Circuit Direct Fit Chassis Harness; 12 Fuses w/Horn Relay; Grommet Firewall Pass-Through
    Engine VIN CodeF
    RegionUSA
  • MakeFORD
    ModelMUSTANG
    SubmodelBASE
    Beginning Year1965
    Ending Year1965
    Engine TypeV8
    Liter4.7
    CC4727
    CID289
    Engine FamilyFord small block Windsor
    Engine Size4.7L/289
    Wiring Harness ClassificationChassis Wiring Harness
    DrivetrainRWD
    Application Notes22 Circuit Direct Fit Chassis Harness; 12 Fuses w/Horn Relay; Grommet Firewall Pass-Through
    Engine VIN CodeD
    RegionUSA
  • MakeFORD
    ModelMUSTANG
    SubmodelBASE
    Beginning Year1965
    Ending Year1966
    Engine TypeL6
    Liter3.3
    CC3277
    CID200
    Engine FamilyFORD L6 GAS
    Engine Size3.3L/200
    Wiring Harness ClassificationChassis Wiring Harness
    DrivetrainRWD
    Application Notes22 Circuit Direct Fit Chassis Harness; 12 Fuses w/Horn Relay; Grommet Firewall Pass-Through
    Engine VIN CodeT
    RegionUSA
  • MakeFORD
    ModelMUSTANG
    SubmodelBASE
    Beginning Year1965
    Ending Year1966
    Engine TypeV8
    Liter4.7
    CC4727
    CID289
    Engine FamilyFord small block Windsor
    Engine Size4.7L/289
    Wiring Harness ClassificationChassis Wiring Harness
    DrivetrainRWD
    Application Notes22 Circuit Direct Fit Chassis Harness; 12 Fuses w/Horn Relay; Grommet Firewall Pass-Through
    Engine VIN CodeA
    RegionUSA
  • MakeFORD
    ModelMUSTANG
    SubmodelBASE
    Beginning Year1965
    Ending Year1966
    Engine TypeV8
    Liter4.7
    CC4727
    CID289
    Engine FamilyFord small block Windsor
    Engine Size4.7L/289
    Wiring Harness ClassificationChassis Wiring Harness
    DrivetrainRWD
    Application Notes22 Circuit Direct Fit Chassis Harness; 12 Fuses w/Horn Relay; Grommet Firewall Pass-Through
    Engine VIN CodeC
    RegionUSA
  • MakeFORD
    ModelMUSTANG
    SubmodelBASE
    Beginning Year1965
    Ending Year1966
    Engine TypeV8
    Liter4.7
    CC4727
    CID289
    Engine FamilyFord small block Windsor
    Engine Size4.7L/289
    Wiring Harness ClassificationChassis Wiring Harness
    DrivetrainRWD
    Application Notes22 Circuit Direct Fit Chassis Harness; 12 Fuses w/Horn Relay; Grommet Firewall Pass-Through
    Engine VIN CodeK
    RegionUSA
  • MakeFORD
    ModelMUSTANG
    SubmodelSHELBY GT-350
    Beginning Year1965
    Ending Year1966
    Engine TypeV8
    Liter4.7
    CC4727
    CID289
    Engine FamilyFord small block Windsor
    Engine Size4.7L/289
    Wiring Harness ClassificationChassis Wiring Harness
    DrivetrainRWD
    Application Notes22 Circuit Direct Fit Chassis Harness; 12 Fuses w/Horn Relay; Grommet Firewall Pass-Through
    Engine VIN CodeK
    RegionUSA
  • MakeFORD
    ModelMUSTANG
    SubmodelSHELBY GT-350H
    Beginning Year1966
    Ending Year1966
    Engine TypeV8
    Liter4.7
    CC4727
    CID289
    Engine FamilyFord small block Windsor
    Engine Size4.7L/289
    Wiring Harness ClassificationChassis Wiring Harness
    DrivetrainRWD
    Application Notes22 Circuit Direct Fit Chassis Harness; 12 Fuses w/Horn Relay; Grommet Firewall Pass-Through
    Engine VIN CodeK
    RegionUSA

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