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2021 FORD BRONCO OEM 2.3L 4X4 MAIN BODY CHASSIS CABLE WIRING HARNESS, part number FB6241
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FB6241
FB6241FORD TRUCKSLower

2021 FORD BRONCO OEM 2.3L 4X4 MAIN BODY CHASSIS CABLE WIRING HARNESS

Restore factory electrical routing with this OEM main body/chassis wiring harness for a 2021 Ford Bronco 2.3L 4x4. Designed to connect multiple body, chassis, lighting, control, and accessory circuits, this harness is best suited for collision repair, restoration, electrical troubleshooting.

In stock12 Months

Not concours correct

The 2021 Bronco does not use one universal body harness. Ford uses multiple application-specific wiring assemblies depending on engine, transmission, body style, climate system, and other equipment.

$316.24$356.24Save $40.00
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003Specification

What it is

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SUBJECT
FB6241
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2021 Ford Bronco OEM 2.3L 4x4 Main Body Chassis Cable Wiring Harness Product Description Shop 2021 Ford Bronco OEM main body chassis wiring harness for factory-style electrical repair on compatible 2.3L 4x4 models. Replacing a used Bronco body wiring harness can help solve damaged connectors, cut wires, corrosion, collision damage, or previous electrical modifications. Order 2021 Ford Bronco chassis wiring harness for restoration, repair, or complete electrical-system rebuilding. This OEM-style harness routes electrical power and communication signals through multiple body and chassis systems. Factory connectors and branch routing make it especially useful when restoring damaged wiring without constructing a custom loom. Because 2021 Bronco wiring varies by body style, transmission, and equipment package, matching the original Ford engineering or part number is essential. Key Features Designed for compatible 2021 Ford Bronco Intended for 2.3L 4x4 applications Main body / chassis electrical harness Factory-style connectors and wire routing Suitable for OEM electrical restoration Helps replace cut, burned, corroded, or damaged wiring Useful for collision repair Supports multiple body and chassis circuits Application-specific configuration Ideal for stock or factory-equipped Bronco builds OEM part-number verification recommended Product Specifications Specification Details Product Type Main Body / Chassis Wiring Harness Vehicle Make Ford Model Bronco Model Year 2021 Engine 2.3L Drivetrain 4x4 Position Body / Chassis Electrical System Connector Style Factory OEM-Style Application Repair / Restoration / Collision Replacement Fitment Verification OEM Part Number / VIN Recommended Why Replace the Main Wiring Harness? A damaged body harness can create intermittent electrical faults, warning lights, dead circuits, communication errors, or complete failure of connected accessories. Replacing severely damaged wiring with a correct factory-style harness can be more reliable than repairing dozens of cut or compromised wires individually. It also helps preserve original connector locations and electrical routing.

Features
  • Genuine Ford OEM-style main body/chassis wiring harness
  • Designed for compatible 2021 Ford Bronco
  • Intended for 2.3L 4x4 applications
  • Routes power and signals through major body and chassis systems
  • Useful for collision repair and complete electrical restoration
  • Helps replace cut, burned, corroded, or heavily modified wiring
  • Retains factory-style connectors and branch routing
  • Application-specific construction
  • Compatible only with the correct factory option configuration
  • Some Bronco main body harnesses use references such as M2DT-15A657 / M2DZ-15A657-A
  • Other floor/body harness variants use different engineering numbers, so exact matching is critical
In the box
  • 1 × OEM main body / chassis wiring harness assembly
  • Attached factory connectors and branch wiring as supplied

Shipping weight 25.00 lb

004Application register

Everything this fits

1 application · 0 verified

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Ford1
  • 2021–presentBronco Sport
    All engines

Fitment is extremely configuration-specific. Confirm the vehicle is a 2021 Ford Bronco with the 2.3L engine and 4WD. Match the OEM engineering/part number on the original harness exactly before purchase. 2-door and 4-door Broncos can use different harnesses. Manual and automatic transmissions can require different harness configurations. Audio systems, climate-control packages, lighting, towing equipment, driver-assistance systems, locking differentials, and other factory options can change the wiring layout. Do not confuse the body/chassis harness with the engine harness. Ford lists separate 2.3L engine harnesses for automatic and manual transmissions. Instrument-panel harnesses are also separate and vary by HVAC and transmission configuration. Used harnesses should be inspected for cut wires, broken connectors, water intrusion, heat damage, corrosion, and prior repairs. VIN-level verification is strongly recommended.

005Counter questions

Asked about this part

What is this 2021 Ford Bronco wiring harness?
It is an OEM main body / chassis wiring harness designed for compatible 2021 Ford Bronco 2.3L 4x4 applications.
What does the main body/chassis harness do?
It routes electrical power and communication signals to multiple body and chassis systems throughout the vehicle.
Is this the engine wiring harness?
No. The engine harness is a separate assembly.
Is this the dashboard or instrument-panel harness?
Not necessarily. Main body, chassis, engine, and instrument-panel harnesses are separate assemblies on the 2021 Bronco.
Is this a genuine OEM-style harness?
Yes. It is intended as a factory-style replacement with OEM-type connectors and routing.
Does it fit every 2021 Ford Bronco?
No. Fitment depends heavily on engine, body style, transmission, drivetrain, and factory options.
Is this harness for the 2.3L engine?
Yes. This listing is intended for compatible 2.3L Bronco configurations.
Is it for 4x4 models?
Yes. The listing is for compatible 4x4 applications.
Will it fit a 2-door Bronco?
Possibly, but the exact OEM part number must be matched because 2-door and 4-door harnesses can differ.
Will it fit a 4-door Bronco?
Possibly, but exact part-number verification is still required.
Can transmission type affect fitment?
Yes. Manual and automatic transmission configurations can use different wiring arrangements.
Can factory options affect the harness?
Yes. Audio, towing, lighting, driver-assistance, HVAC, locking differential, and other options can change the harness.
Why is the OEM part number so important?
Because multiple harness versions can exist for the same model year and engine.
Should I match the engineering number on my original harness?
Yes. Matching the original Ford engineering or service part number is one of the safest ways to verify fitment.
Can VIN verification help?
Yes. VIN-level verification is strongly recommended for a harness this configuration-specific.
What systems can this harness connect to?
Depending on configuration, it may serve lighting, body controls, chassis circuits, sensors, accessories, and communication networks.
Does it include the BCM?
No. The body control module should not be assumed to be included.
Does it include fuse boxes?
Not unless specifically shown or listed.
Are relays included?
Not necessarily. Relays and control modules are typically separate.
Are sensors included?
No. Sensors are generally separate components.
Are mounting clips included?
Only those already attached to the harness should be assumed included.
Does it include battery cables?
No. Battery cables are separate parts.
Does it include ground straps?
Not unless they are attached and specifically part of the harness assembly.
What are common reasons to replace a body harness?
Collision damage, fire damage, cut wiring, corrosion, water intrusion, poor prior repairs, or major electrical modifications.
Can a damaged harness cause warning lights?
Yes. Open circuits, shorts, or communication faults can trigger warning lights and diagnostic trouble codes.
Can a damaged harness cause intermittent electrical problems?
Yes. Broken wires, loose terminals, or corrosion can cause problems that come and go.
Can one damaged connector cause multiple faults?
Yes. A single connector can carry several circuits.
Should I inspect every connector before installation?
Yes. Check for bent pins, corrosion, heat damage, broken locks, and missing seals
Should I inspect the loom itself?
Yes. Look for cuts, melted insulation, crushed sections, previous splices, or water damage.
Can a used OEM harness be reused safely?
Yes, if it is undamaged, dry, unmodified, and the exact part number matches your vehicle.
Should repaired wires be a concern?
Yes. Previous splices should be evaluated carefully before installation.
Can corrosion inside a connector cause network problems?
Yes. Modern Bronco systems rely heavily on low-voltage communication circuits.
Does this harness need programming?
The harness itself generally does not, but modules connected to it may require configuration or programming after replacement.
Could module replacement be required too?
Only if diagnostics show that a connected module is damaged or incompatible.
Do I need to disconnect the battery before installation?
Yes. Disconnect the battery and follow proper electrical service procedures.
Is professional installation recommended?
Yes. Main-body harness replacement can require extensive interior disassembly and careful routing.
Can the harness be installed without removing interior trim?
Usually not completely. Access often requires removal of seats, panels, carpet, or other trim depending on routing.
Should the replacement harness follow the original routing exactly?
Yes. Correct routing helps prevent chafing, heat damage, water exposure, and connector strain.
Are clips and retainers important?
Yes. Missing retainers can allow the harness to rub or move excessively.
Can aftermarket accessories affect fitment?
Yes. Added lighting, audio equipment, winches, switches, or other wiring can alter the original setup.
Will this work with a heavily modified Bronco?
Possibly, but custom wiring changes may require adaptation.
Can this harness be used after collision repair?
Yes. That is one of the main applications, provided the replacement harness matches the original configuration.
Is it suitable for restoration?
Yes. It is appropriate for returning a damaged Bronco electrical system closer to factory specification.
What is the estimated shipping weight?
A full main-body/chassis harness can weigh roughly 15–25 lb, depending on configuration.
What shipping weight should I use for the listing?
25 lb (11.3 kg) is a practical listing estimate unless the exact boxed weight is available.
What should I verify before ordering?
Confirm the 2021 Ford Bronco, 2.3L engine, 4x4 drivetrain, 2-door or 4-door body style, transmission type, factory option package, connector layout, VIN, and exact OEM harness part number.
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