GM Genuine Parts®Verified to fit 11 vehicles
| Vehicle | Trim | Engine | Notes |
|---|---|---|---|
| 2022 Chevrolet Blazer | — | L4 2.0L | Note: CLSR AUX SIG |
| 2022 Chevrolet Blazer | — | L4 2.5L | Note: CLSR AUX SIG |
| 2022 Chevrolet Blazer | — | V6 3.6L | Note: CLSR AUX SIG |
| 2021 Chevrolet Blazer | — | L4 2.0L | Note: CLSR AUX SIG |
| 2021 Chevrolet Blazer | — | L4 2.5L | Note: CLSR AUX SIG |
| 2021 Chevrolet Blazer | — | V6 3.6L | Note: CLSR AUX SIG |
| 2020 Chevrolet Blazer | — | L4 2.0L | Note: CLSR AUX SIG |
| 2020 Chevrolet Blazer | — | L4 2.5L | Note: CLSR AUX SIG |
| 2020 Chevrolet Blazer | — | V6 3.6L | Note: CLSR AUX SIG |
| 2019 Chevrolet Blazer | — | L4 2.5L | Note: CLSR AUX SIG |
| 2019 Chevrolet Blazer | — | V6 3.6L | Note: CLSR AUX SIG |
WARNING: Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, known to the State of California to cause cancer and reproductive harm. Service the vehicle in a well-ventilated area, wear gloves, and wash your hands. See www.P65Warnings.ca.gov/motor-vehicle-parts
Guaranteed fit — or free return
Currently out of stock
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If a part we confirmed for your vehicle does not fit, we cover the return shipping and refund you in full. That is the fitment guarantee.
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Every part is covered for 24 months. Many brands add their own manufacturer warranty on top.
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GM Genuine Parts Tail Light Wiring Harness 84308390
Out of stock · guaranteed fit or free return
GM Genuine Parts Tail Light Wiring Harness 84308390
Shipping calculated at checkout · Est. arrival Mon, Nov 2 to Mon, Nov 2
Ships To:Key Features
About This Tail Light Wiring Harness
This GM Genuine Parts automotive component is engineered to meet or exceed OEM specifications for reliable performance and long service life.
Key Features
- Meets or exceeds OEM specifications
- Direct-fit replacement design
- Rigorously tested for durability
- Professional-grade construction
- Backed by manufacturer warranty
Signs This Part Needs Replacement
- •Unusual noises from the component area
- •Decreased vehicle performance
- •Warning lights on dashboard
- •Visible wear or damage
- •Failed vehicle inspection
GM Genuine Parts
Trusted Automotive Brand
GM Genuine Parts is a trusted manufacturer of quality automotive parts.
View all GM Genuine Parts productsInstallation Guide
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Frequently Asked Questions
The GM Genuine Parts Tail Light Wiring Harness (84308390) is a direct-fit replacement for 2019-2022 Chevrolet vehicles. UPC 808709904304.
About This Product
Tail Light Wiring Harness
The GM Genuine Parts Tail Light Wiring Harness (84308390) is a direct-fit replacement for 2019-2022 Chevrolet vehicles. UPC 808709904304.
This GM Genuine Parts automotive component is engineered to meet or exceed OEM specifications for reliable performance and long service life.
Key Features
- Meets or exceeds OEM specifications
- Direct-fit replacement design
- Rigorously tested for durability
- Professional-grade construction
- Backed by manufacturer warranty
Signs This Part Needs Replacement
- Unusual noises from the component area
- Decreased vehicle performance
- Warning lights on dashboard
- Visible wear or damage
- Failed vehicle inspection
Brand-first. Fitment-obsessed.
We only sell brands automakers trust, and we double-check the fit on every listing.
Top curated brands only
The brands automakers put on the car.
Obsessed with fitment
Year, make, model, trim, engine, plus the fine print.
Search any part number
Your old part, a competitor, or the dealer #. We confirm the match.
Shop owner? Get BuffyPro business pricing
Fitment Obsessed
Every part checked against your exact year, make, model, trim, and engine.
Wrong Fit? On Us.
Free return shipping, no restocking fee — the fitment guarantee.
Brands OEMs Trust
The names automakers actually put on the car.
Millions of Parts, One Promise
If we say it fits, it fits.