GM 84315387 Headliner Wiring Harness

( Brand: Gm ), ( Manufacturer Part Number: 84315387 ), ( Part Type: Wiring Headliner Harness ), ( Warranty: 1 Year ), ( Year: 2018 2019 ), ( Fitment Type: Direct Replacement ), ( Genuine Oem: Yes ), ( Make: Chevrolet ), ( Replaces Part Number: 86818717 )

Review GM Genuine Headliner Wiring Harness fits 2018–2019

The **GM 84315387 Headliner Wiring Harness** is a high-quality, factory-spec replacement component designed to restore proper electrical functionality and aesthetics to the headliner assembly in General Motors vehicles. This meticulously engineered harness is crafted to match the original equipment manufacturer (OEM) standards, ensuring seamless integration with the vehicle s electrical system while maintaining optimal performance and reliability. Constructed from durable, corrosion-resistant materials, the harness features precision-wired connectors and shielded cables that protect against interference, moisture, and mechanical stress, making it ideal for both original installations and aftermarket upgrades. The wiring is carefully routed to align with the headliner s mounting points and trim components, eliminating the risk of fraying or improper connections that could lead to intermittent power issues, malfunctioning features like dome lights or sunroof controls, or even complete electrical failure. Whether replacing a damaged harness due to wear, a collision, or a failed component, this harness provides a clean, professional solution that enhances the vehicle s overall functionality and resale value. Its universal compatibility with a range of GM applications ensures that technicians and DIY enthusiasts can confidently install it without the need for extensive modifications, while its robust construction guarantees long-term durability under varying environmental conditions.

### **Pros and Cons of buying a GM 84315387 Headliner Wiring Harness**

The GM 84315387 headliner wiring harness is a genuine or high-quality aftermarket replacement part designed for specific General Motors vehicles. Here are the key advantages:

1. **Direct Fitment** This part is engineered to match the wiring and connectors of the original equipment manufacturer (OEM) system, reducing the risk of compatibility issues. It should integrate seamlessly with the headliner assembly in GM vehicles that require this specific part number.

2. **Reliability** As a GM-approved or aftermarket part from a reputable supplier, it is built to withstand regular use without premature failure. The wiring is typically shielded and properly insulated to prevent electrical interference or short circuits.

3. **Compatibility with Aftermarket Upgrades** If you plan to modify your vehicle s headliner (e.g., adding LED lighting, sound systems, or climate control features), this harness provides a solid foundation for additional wiring without excessive modifications.

4. **Reduced DIY Complexity** Since the harness is pre-wired and pre-connected, installation is often simpler than custom wiring. This can save time and frustration, especially for those without extensive automotive electrical experience.

5. **Support for Original Features** If your vehicle s headliner includes factory-installed functions like dome lights, climate control vents, or audio speakers, this harness ensures those systems continue to operate correctly.

6. **Warranty Coverage (if applicable)** Purchasing from authorized dealers or reputable suppliers may include a warranty, providing peace of mind against manufacturing defects.

7. **Cost-Effective Replacement** Compared to custom wiring or salvaging parts from a donor vehicle, this harness offers a balanced price point for a reliable solution.

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1. **Limited Availability** Depending on the supplier, this part may not always be in stock, requiring patience or expedited shipping. Some aftermarket parts can be harder to source than OEM replacements.

2. **Price Variability** Prices can fluctuate based on the supplier, brand, and whether it is a genuine GM part or an aftermarket equivalent. Genuine GM parts are often more expensive than third-party alternatives.

3. **Installation Challenges** While the harness is designed for ease of use, improper routing or connection can still lead to issues. If the headliner or surrounding panels are damaged during removal, additional labor may be required to reinstall them properly.

4. **Compatibility with Modified Vehicles** If your vehicle has been heavily modified (e.g., custom wiring, added electronics, or altered headliner structures), the harness may not account for those changes. Custom modifications might still be necessary.

5. **Quality Control Concerns (Aftermarket Parts)** Some aftermarket harnesses may use lower-grade materials or lack proper crimping on connectors, leading to loose connections or electrical failures over time. Researching the supplier s reputation is crucial.

6. **Potential for Overkill** If your vehicle s headliner wiring is functional but not failing, replacing it solely for preventive maintenance may not be justified. Only replace if there are clear symptoms of wear or damage.

7. **Labor Costs** Even with a direct-fit part, professional installation may be required, especially if the harness needs to be integrated with existing wiring or if the headliner is difficult to access. Labor fees can add significant cost.

8. **Risk of Counterfeit Parts** Purchasing from untrusted sellers (e.g., unverified online marketplaces) increases the risk of receiving a fake or low-quality part. Always buy from authorized dealers or well-reviewed suppliers.

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### **Conclusion**

The GM 84315387 headliner wiring harness is a **strong choice for vehicles requiring a direct-fit, reliable replacement** for headliner electrical components. Its primary strengths lie in compatibility, ease of installation, and support for original vehicle functions. However, potential buyers should weigh the **cost, availability, and quality of the part** against their specific needs, as aftermarket alternatives or DIY solutions may be more suitable in some cases.

For most drivers experiencing **electrical issues with their headliner (e.g., dead dome lights, faulty climate control wiring, or damaged harnesses)**, this part offers a **practical and efficient solution**. If the vehicle is otherwise in good condition and the harness is the sole issue, replacing it is a justified repair.

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### **Recommendation**

1. **Verify Compatibility** Confirm that the part number (84315387) matches your vehicle s year, make, and model. Some GM vehicles share wiring harnesses, but slight variations may exist.

2. **Choose a Reputable Supplier**

- For **genuine GM parts**, purchase from authorized dealers, GM service centers, or trusted online retailers like RockAuto, AutoZone, or PartsGeek.

- For **aftermarket options**, select suppliers with strong reviews (e.g., Dorman, Bosch, or local auto parts stores with return policies).

- Cracked or brittle insulation.

- Loose or corroded connectors.

- Proper labeling of wires (if applicable).

4. **Consider Professional Installation** If you lack experience with automotive electrical work, have a mechanic install the harness to ensure proper routing and connection.

5. **Budget for Additional Costs** Account for potential labor fees, tools (e.g., crimping tools, wire strippers), or extra parts (e.g., new connectors if the old ones are damaged).

6. **Test After Installation** Once installed, thoroughly test all headliner functions (dome lights, vents, audio, etc.) to confirm the harness is working correctly.

**Final Verdict:** If you need a **direct-fit, reliable replacement for a failing GM headliner wiring harness**, this part is a **solid investment**. However, if you re unsure about compatibility or quality, explore alternatives like **OEM salvage parts** or **custom wiring solutions** from experienced automotive electricians. Always prioritize quality and professional installation to avoid recurring issues.

Details:

With the manufacturer part number 84315387 and a genuine GM brand, this headliner wiring harness is reliable essential interior for your car or truck.7503036C92 The Genuine Headliner Wiring Harness direct replacement Chevrolet GMC vehicles from years 2018 - 2019. This OEM product is guaranteed with a 1-year warranty, ensuring quality and compatibility the specified vehicle make model.

part #: 84315387 prices

• $50.00-$73.09

specifications carspeedometeriz:

• for years: 2018-2019
• brand: Gm
• mpn: 84315387
• part type: Wiring Headliner Harness
• warranty: 1 Year
• year: 2018 2019
• fitment type: Direct Replacement
• genuine oem: Yes
• make: Chevrolet
• replaces part number: 86818717

general carspeedometeriz:

• condition: New
• Car Truck Parts Accessories > Interior Parts Accessories > Headliners Parts

returns carspeedometeriz:

• policy: Returns Accepted
• paid by: Seller
• time: 30 Days

shipping carspeedometeriz:

• transit: 3-7 Days
• carrier: UPS
• service: UPS Ground
• class: Standard
• cost: $0.00
• type: Fixed

offer carspeedometeriz:

• options: Ship-to-home
• quantity: 5
• best offers: True
• availability: In Stock
• started: February 3, 2026
• sold: 0

payments carspeedometeriz:

• other
• credit card: Visa
• wallet: Google-pay

seller carspeedometeriz:

• rating: 99.7%
• city: Holland, Michigan
• # reviews: 2576

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