OEM GM Tailgate Wiring Harness 86803929 2024-2026 Silverado Sierra 2500HD/3500HD

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Wiring Harnesses & Connectors

OEM GM Tailgate Wiring Harness 86803929 2024-2026 Silverado Sierra 2500HD/3500HD

Name: OEM GM Tailgate Wiring Harness 86803929 2024-2026 Silverado Sierra 2500HD/3500HD - American Off-Road Supply
SKU: WH-032
Price: 133.00 USD
Availability: InStock

SKU WH-032 In stock

$133.00

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Registered business entity: Pending publication
Federal EIN issued: Pending publication
D-U-N-S number: Pending publication
State of registration: Pending publication

American Off-Road Supply LLC, San Antonio, Texas. Registration details are published here as soon as they are confirmed; the full EIN and a signed W-9 are furnished on request for vendor onboarding.

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Overview

Condition: Used. Photographs show the actual unit; see the description for wear.

Genuine OEM GM tailgate wiring harness, part number 86803929, removed from a 2024-2026 Chevrolet Silverado / GMC Sierra HD. Factory harness with factory connectors.

Details:

OEM GM part number 86803929
Tailgate wiring harness with 10 connectors
Overall length approximately 80.5 inches
Placement: rear tailgate

Vehicle fitment:

2024-2026 Chevrolet Silverado 2500HD and 3500HD
Select 2024-2026 GMC Sierra 2500HD and 3500HD models
Fitment may vary by trim level and equipment. Verify part number 86803929 matches your original harness before purchasing.

Condition: Used. Normal cosmetic wear from previous use is possible. You will receive the harness shown in the photos; review all photos carefully before purchasing.

At a glance

SKUWH-032

MakeChevrolet, GMC

ModelChevrolet Silverado 2500HD, Chevrolet Silverado 3500HD, GMC Sierra 2500HD, GMC Sierra 3500HD

Model Year2024, 2025, 2026

ConditionUsed

CategoryWiring Harnesses & Connectors

Listed to fit

MakeChevrolet, GMC

ModelChevrolet Silverado 2500HD, Chevrolet Silverado 3500HD, GMC Sierra 2500HD, GMC Sierra 3500HD

Model Year2024, 2025, 2026

Vehicles

Sierra 2500HD Sierra 3500HD Silverado 2500HD Silverado 3500HD

Not sure it fits?

Send us your year, make, model, trim and VIN and we will confirm this part before you order. Ask about this part

How this ships

Free shipping to all 50 states, including Alaska and Hawaii. No surcharges.
Handling is 1 to 2 business days once payment clears.
Transit is typically 2 to 5 business days; 3 to 7 business days door to door.
Large parts such as beds and bumpers move by freight on a pallet.
Free local pickup from our San Antonio yard, by appointment after payment.
Inspect the part before you sign for a freight delivery. Read the Shipping Policy

Warranty

Used and take-off parts carry a 90-day parts-only limited warranty from delivery.
New parts carry the manufacturer's own written warranty, and we handle the claim for you.
The remedy on a used part is a refund, and we pay the return freight. Read the Warranty Policy

Returns

30 days from delivery to return a part that has not been installed.
No restocking fee, ever.
Wrong part, wrong fitment, not as described or damaged in transit: we pay the return freight.
Refunds go back to the original payment method within 5 business days of arrival. Read the Returns Policy

Frequently asked questions about this part

Will this wiring harness fit my truck?

It is listed for Chevrolet GMC Silverado 2500HD 3500HD Sierra 2500HD 3500HD trucks from 2024 through 2026. Send us your year, make, model, trim and VIN before you order and we will confirm the fit for your exact truck.

What is the part number?

The manufacturer part number is 86803929. Compare it with the number stamped or labeled on your old part; for electrical parts the number must match exactly or be an approved supersession.

What comes with it?

Only what is shown in the photos and named in the listing. Brackets, hardware, bulbs, sensors and wiring are not included unless the listing says so. If you need a related part, ask and we will check the yard.

How does this wiring harness ship?

By UPS, FedEx or USPS, free to all 50 states. Handling is 1 to 2 business days after payment clears and most orders arrive in 3 to 7 business days door to door. Tracking is emailed when it ships.

Can I return it if it does not fit?

Yes. You have 30 days from delivery to return it as long as it has not been installed, painted, modified or programmed. There is no restocking fee. You pay the return shipping unless the mistake was ours, in which case we pay it and refund you in full.

Can I pick it up instead of having it shipped?

Yes. Choose local pickup at checkout and collect it free from our yard at 7340 Somerset Rd, San Antonio, TX 78211 after you receive the ready-for-pickup email. Bring photo ID; we hold paid pickup orders for 14 days.

Did not find your answer? Send us your year, make, model, trim and VIN and we will reply within 1 business day. Ask about this part