1. Car & Truck Dash Gauges Offered
  2. sku: 20415323021602813
  3. GM 10040928

GM 10040928 Speedometer Head

fits year: 1986–1988.

10040928 Gm Genuine Speedometer Head

( Brand: Gm ), ( Manufacturer Part Number: 10040928 ), ( Model: 6000 ), ( Part Type: Speedometer Head ), ( Genuine Oem: Yes ), ( Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Make: Pontiac ), ( Year: 1986 1987 1988 ), ( Parts Included: Only Part Reference 0 On The Diagram Is Included )

Review GM Genuine Speedometer Head fits 1986–1988

The **GM 10040928 Speedometer Head** is a high-quality, precision-engineered instrument designed to deliver accurate and reliable speed readings for automotive applications, particularly within General Motors vehicles. This speedometer head is crafted with a durable, high-visibility analog dial featuring a bold, easy-to-read scale marked in miles per hour (mph), ensuring optimal visibility even under varying lighting conditions. The housing is constructed from robust, impact-resistant materials, including a sturdy plastic or metal frame, which enhances its longevity and resistance to wear and tear from daily use. The dial itself is encased in a clear, shatterproof lens that protects the internal components while maintaining clarity, allowing drivers to monitor their speed with precision.

At the core of this speedometer head is a sophisticated mechanical or electronic sensor system, depending on the vehicle s requirements, which interfaces seamlessly with the vehicle s speed sensor and transmission control module. This integration ensures real-time speed data is transmitted accurately, reducing the risk of misreadings or malfunctions. The needle, typically crafted from lightweight yet durable materials, moves smoothly across the dial, providing instant feedback on vehicle speed with minimal lag. For enhanced functionality, some versions of this speedometer may include additional features such as a tachometer gauge, fuel gauge, or temperature indicator, depending on the specific model and application, all of which contribute to a comprehensive dashboard display.

The GM 10040928 speedometer head is engineered to meet strict automotive industry standards, ensuring compatibility with a wide range of GM vehicles, including trucks, SUVs, and passenger cars from various model years. Its compact yet functional design allows for easy installation, whether as an original equipment replacement or an upgrade for improved performance and aesthetics. The unit is also designed to withstand the environmental stresses of automotive use, such as temperature fluctuations, vibrations, and exposure to moisture, making it a dependable choice for both short-term and long-term applications. Whether used in a classic vehicle restoration project or as a straightforward replacement for a worn-out gauge, this speedometer head exemplifies reliability, precision, and durability, ensuring drivers can trust their speed readings every time they are behind the wheel.

### **Pros and Cons of Buying a GM 10040928 Speedometer (Genuine Replacement Part)**

#### **Pros:**

1. **Genuine Fit and Functionality** This is an original equipment manufacturer (OEM) part designed specifically for GM vehicles, ensuring proper fit, compatibility, and performance. It will match the factory specifications in terms of accuracy, wiring, and mounting.

2. **Reliability and Durability** OEM parts are built to the same high standards as the original component, reducing the risk of premature failure or malfunctions. They are typically made with materials that meet GM s quality control requirements.

3. **Warranty Coverage** Purchasing from an authorized GM dealer or a reputable aftermarket supplier often includes a warranty (e.g., 12 60 months), providing peace of mind against defects. Some warranties may even transfer to the next owner if sold with the vehicle.

4. **Accurate Speed and Mileage Readings** Unlike aftermarket or cheap knockoff parts, an OEM speedometer ensures precise speed and odometer readings, which is critical for safety, insurance, and vehicle resale value.

5. **Compatibility with Diagnostic Systems** Modern GM vehicles rely on integrated systems where the speedometer may interact with the engine control module (ECM), anti-lock braking system (ABS), or other electronics. An OEM part is less likely to cause compatibility issues or trigger error codes.

6. **Resale Value Preservation** If you plan to sell the vehicle later, having an OEM speedometer (rather than an aftermarket replacement) can help maintain its perceived value, especially for buyers who prioritize original components.

7. **Ease of Installation** Since it is designed for the specific vehicle model, wiring harnesses and mounting points are already aligned, reducing installation complexity compared to aftermarket parts that may require modifications.

8. **Support for Vintage or Classic Vehicles** For older GM models, OEM parts are often harder to find, making this a reliable option for restoration projects where authenticity matters.

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#### **Cons:**

1. **Higher Cost** OEM parts are significantly more expensive than aftermarket or generic replacements. The price can range from **$100 to $300 **, depending on the vehicle year and market demand. This may be a barrier for budget-conscious buyers.

2. **Limited Availability** While widely available for newer GM models, OEM speedometers for older or discontinued vehicles may be harder to source, potentially requiring special orders or longer wait times.

3. **Potential for Overkill** If the speedometer is only failing due to a minor issue (e.g., a broken needle or cracked display), replacing the entire unit may be unnecessary. A partial repair (e.g., replacing the gauge glass or wiring) could be cheaper and more practical.

4. **No Additional Features** Unlike some aftermarket gauges, an OEM speedometer does not offer upgrades such as digital displays, Bluetooth connectivity, or customizable backlighting. If you seek modern conveniences, you may need to pair it with an aftermarket interface.

5. **Dealer Markup** Purchasing from an authorized GM dealer can inflate the price due to overhead costs and profit margins. Buying from an online retailer (e.g., RockAuto, AutoZone, or eBay from verified sellers) may offer better pricing.

6. **Potential for Counterfeit Parts** If buying from untrusted sources (e.g., unscrupulous online sellers), there is a risk of receiving a **counterfeit OEM part** that may fail quickly or not fit properly. Always verify the seller s reputation and part authenticity.

7. **Environmental and Ethical Concerns** OEM parts come from manufacturing processes that may have environmental impacts. Some buyers prefer aftermarket parts made from recycled or more sustainable materials, though this is less common for speedometers.

8. **No Customization Options** If you want a speedometer with a different color, style, or additional functions (e.g., trip meters), OEM parts offer no flexibility. Aftermarket options may provide more design choices.

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### **Conclusion**

The **GM 10040928 speedometer (OEM replacement)** is a **high-quality, reliable choice** for buyers who prioritize **accuracy, longevity, and compatibility** with their vehicle. It is ideal for:

- **Restoration projects** where authenticity is important.

- **Owners who want to avoid potential issues** from aftermarket parts.

- **Those who value warranty coverage** and dealer support.

- **Vehicles where the speedometer is a critical safety component** (e.g., older models with mechanical gauges).

However, the **higher cost and limited availability** make it less practical for:

- **Budget-conscious buyers** who can opt for aftermarket alternatives.

- **Minor repairs** where only a specific component (e.g., needle, wiring) needs replacement.

- **Vehicles with non-standard speedometer requirements** (e.g., custom builds with aftermarket dashboards).

---

### **Recommendation**

- **Buy the OEM part if:**

- You need a **direct replacement** for a failed speedometer in a GM vehicle.

- You want **guaranteed compatibility** and **warranty protection**.

- The **cost is justified** by the part s importance to your vehicle s function or resale value.

- **Consider an aftermarket alternative if:**

- You are on a **tight budget** and can find a **high-quality aftermarket gauge** (e.g., from brands like **Delphi, ACDelco, or Spicer**) that meets your needs.

- The speedometer failure is **isolated** (e.g., only the needle or wiring is bad), and a **partial repair** is possible.

- You want **additional features** (e.g., digital displays, custom styling) that OEM parts do not offer.

- **Where to Buy:**

- **Authorized GM Dealers** (for warranty and authenticity).

- **Reputable Online Retailers** (e.g., **RockAuto, AutoZone, Amazon, or eBay from verified sellers**).

- **Specialty Auto Parts Stores** (e.g., **Napa, Advance Auto, or local GM parts suppliers**).

- **Installation Tip:**

- If you re not comfortable with electrical work, have a **professional mechanic** install it, especially if the speedometer is part of a larger dashboard or wiring harness.

**Final Verdict:** For most GM vehicle owners, the **OEM speedometer is the best choice** for reliability and peace of mind, despite the higher cost. Only opt for aftermarket options if you re certain they meet your needs and budget.

Details:

Brakes Suspension. Filters Fluids. Parts must be resalable and in the original packaging. Electrical parts are not returnable.

With trip odometer. Electrical Lighting. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer.

Batteries Alternators. Genuine GM Speedometer Head 10040928:: 6000.

part #: 10040928 price

  • $66.09

specifications boosttempgauges:

  • for years: 1986-1988
  • brand: Gm
  • mpn: 10040928
  • model: 6000
  • part type: Speedometer Head
  • genuine oem: Yes
  • warranty: 1 Year
  • fitment type: Direct Replacement
  • make: Pontiac
  • year: 1986 1987 1988
  • parts included: Only Part Reference 0 On The Diagram Is Included

payments boosttempgauges:

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

seller boosttempgauges:

  • # reviews: 24120
  • city: Phoenix, Arizona
  • rating: 99.6%

shipping boosttempgauges:

  • class: Standard, Expedited, One-day
  • service: Standard, Expedited, Overnight
  • cost: $5.99
  • transit: 5-9 Days
  • type: Fixed

returns boosttempgauges:

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

general boosttempgauges:

  • condition: New
  • Interior Parts Accessories > Gauges > Individual Gauges

offer boosttempgauges:

  • options: Ship-to-home
  • quantity: 1
  • started: April 26, 2026
  • sold: 0
  • availability: In Stock
for years: 1986-1988, part type: speedometer head, genuine oem: yes, warranty: 1 year, fitment type: direct replacement, year: 1986 1987 1988, parts included: only part reference 0 on the diagram is included,
manufacturer: pontiac, category: auto parts > interior parts accessories > gauges > individual gauges, sku: 20415323021602813,
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