1. Sunroof, Convertible & Hardtop Auto Parts For Sale
  2. sku: 15735182238186604
  3. MERCURY 5G1Z15790AA

MERCURY 5G1Z15790AA Roof Motor 628.FD3I05

fits model: Montego. make: Mercury. year: 2005.

5g1z15790aa Mercury Montego 2005 Roof Motor 1475121

( Manufacturer Part Number: 5G1Z15790AA ), ( Part Type: Motor ), ( Genuine Oem: Yes ), ( Ipn: 628.fd3i05 ), ( Partout Id: A-111585418 )

Review MERCURY Roof Motor fits MONTEGO 2005

The **Mercury 5G1Z15790AA Montego 2005 Roof Motor** is a high-performance, precision-engineered component designed exclusively for the iconic Mercury Montego, specifically tailored to the 2005 model year. This roof motor is a critical element in the vehicle s power liftgate system, ensuring smooth, reliable, and effortless operation of the rear hatch, whether for loading cargo, accessing the trunk, or simply enhancing the vehicle s convenience. Built to Mercury s rigorous standards, this motor is constructed from durable materials, including high-grade plastics and reinforced metal components, which are engineered to withstand frequent use, varying weather conditions, and the mechanical stresses of daily driving. The motor operates on a 12-volt electrical system, delivering consistent power with minimal noise, thanks to its optimized gearing and brushless design, which reduces friction and extends the lifespan of the mechanism. Its compact yet robust construction allows for seamless integration into the Montego s roof assembly, ensuring a clean, unobtrusive fit that maintains the vehicle s sleek aesthetic. Whether in urban commuting, highway travel, or off-road adventures, this roof motor provides the reliability and efficiency drivers expect from a Mercury, making it an essential upgrade or replacement part for owners seeking to maintain or enhance their vehicle s functionality. With its precise engineering and robust build, the 5G1Z15790AA is a testament to Mercury s commitment to performance and durability in both classic and modern applications.

### **Pros and Cons of Buying a Mercury 5G1Z15790AA Montego 2005 Roof Motor**

#### **Pros:**

1. **Reliability and Durability** Mercury marine engines, particularly the 5.0L V8 models, are known for their robust construction and longevity when properly maintained. The Montego model is a popular choice for mid-sized boats, offering strong performance for cruising and light fishing.

2. **Power and Performance** The 5.0L V8 engine provides ample horsepower (typically around 200 250 HP, depending on modifications) for smooth operation in various conditions. It handles well in open water and can tow small watercraft or trailers with ease.

3. **Availability of Parts and Service** As a well-established model, finding replacement parts, service manuals, and marine mechanics familiar with Mercury engines is relatively straightforward. This reduces downtime and repair costs compared to less common engines.

4. **Compatibility with Older Boats** The Montego series was designed for mid-sized boats (often 18 25 feet), making it a practical choice for owners of classic or older vessels that may not fit larger modern engines.

5. **Potential for Modifications** The 5.0L V8 platform allows for upgrades like performance camshafts, headers, and fuel system improvements, which can enhance power and efficiency if you re mechanically inclined.

6. **Lower Cost Compared to New Engines** Used Mercury engines like this one are significantly cheaper than buying a new outboard or inboard/outboard unit, offering good value for the money if the engine is in good condition.

7. **Proven Track Record** Mercury s 5.0L V8 engines have been around for decades, with many examples still running reliably after 15 years of use, especially with proper maintenance.

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#### **Cons:**

1. **Age and Wear** A 2005 model is over 20 years old, meaning it may have accumulated significant mileage (both on the water and in storage). Wear on critical components like the crankshaft, rods, and bearings could be a concern if the engine hasn t been properly maintained.

2. **Fuel and Emissions Standards** Older engines like this one may not meet modern emissions regulations, especially if they haven t been modified. Some marinas or public waterways could restrict or prohibit their use in certain areas.

3. **Fuel Efficiency** The 5.0L V8 is not known for exceptional fuel economy. It typically consumes around 1 1.5 gallons per hour at cruising speeds, which can be costly for frequent or long trips.

4. **Maintenance Requirements** Older engines require more frequent maintenance, including oil changes, spark plug replacements, and cooling system checks. Neglecting these can lead to costly repairs or catastrophic failure.

5. **Potential for Hidden Damage** Without a thorough inspection (including a compression test, leak-down test, and inspection of the lower unit and propeller), it s difficult to assess the true condition of the engine. Rust, corrosion, or internal wear could be present.

6. **Resale Value** Even in good condition, a used 2005 Mercury engine will have minimal resale value compared to newer models. If you plan to sell or trade it later, you may not recover much of your investment.

7. **Noise and Vibration** Older V8 engines can be louder and vibrate more than modern, balanced outboards. This may affect comfort, especially in enclosed cabins or during long trips.

8. **Limited Warranty Coverage** Unless purchased with a warranty (unlikely for a used engine), you ll bear full responsibility for repairs. Mercury s original warranties for these models have long expired.

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### **Conclusion:**

The Mercury 5G1Z15790AA Montego 2005 roof motor is a capable and reliable engine for mid-sized boats, especially if you re looking for a budget-friendly option with a proven track record. It excels in power, durability, and parts availability but comes with significant drawbacks related to age, maintenance demands, and potential hidden issues.

If you re an experienced boat owner comfortable with mechanical work and willing to invest time in inspections and upkeep, this engine could be a solid choice particularly if you find one in excellent condition with a clean service history. However, if you prioritize modern efficiency, lower maintenance, or plan to use the boat frequently, a newer or more fuel-efficient engine (such as a Yamaha or Mercury Verado) may be a better long-term investment.

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### **Recommendation:** - **Buy if:**

- You have a well-maintained example with documented service records.

- You re prepared to perform regular inspections and maintenance (oil changes, cooling system checks, etc.).

- You re using it for occasional cruising or fishing in a controlled environment (e.g., private lake or marina with no emissions restrictions).

- You re on a tight budget and can afford potential repair costs.

- **Avoid if:**

- You re unsure about the engine s true condition without a professional inspection.

- You plan to use the boat frequently or in saltwater, where corrosion is a bigger risk.

- You want a low-maintenance, fuel-efficient engine for daily use.

- You re unwilling to invest in upgrades or modifications to improve reliability.

**Alternative Considerations:**

- If you need a used engine, consider a newer Mercury 5.0L V8 (e.g., from the 2010s) or a well-maintained Yamaha 200 250 HP outboard for better fuel efficiency and modern features.

- If budget is a concern, explore smaller, more fuel-efficient engines (e.g., Mercury 4.6L V8 or Yamaha 200 HP) that still offer good performance.

- Always get a **pre-purchase inspection** by a marine mechanic before buying to assess the engine s condition thoroughly.

Details:

Ex: pictures, receipts, videos, etc. Warranty All parts come with our standard 6-month warranty. A free return label will not be provided for remorse reasons. All body parts are sold as is.

All purchase prices are final. Items are shipped after being paid in full.

part #: 5g1z15790aa prices

  • $52.00-$295.00

specifications sunroofconverti:

  • for models: Montego
  • for makes: Mercury
  • for years: 2005
  • mpn: 5g1z15790aa
  • part type: Motor
  • genuine oem: Yes
  • ipn: 628.fd3i05
  • partout id: A-111585418

general sunroofconverti:

  • Exterior Parts Accessories > Roofs, Tops Sunroofs > Sunroofs Parts
  • condition: Used

payments sunroofconverti:

  • credit card: Mastercard
  • other
  • wallet: Paypal

shipping sunroofconverti:

  • cost: $0.00
  • class: Standard
  • transit: 3-6 Days
  • service: Standard
  • type: Fixed

offer sunroofconverti:

  • sold: 0
  • availability: In Stock
  • best offers: True
  • started: February 8, 2026
  • options: Ship-to-home
  • quantity: 1

returns sunroofconverti:

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

seller sunroofconverti:

  • # reviews: 57512
  • city: Seymour, Connecticut
  • rating: 99.5%
for models: montego, for makes: mercury, for years: 2005, part type: motor, genuine oem: yes, partout id: a-111585418,
manufacturer: mercury, category: auto parts > exterior parts accessories > roofs, tops sunroofs > sunroofs parts, sku: 15735182238186604,
Mercury 5G1Z15790AA Is Similar To:
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4 offers $52.00–$295.00 USD
  • Used. Offer #1 priced at $52.00 + $0.00 shipping estimate = $52.00* total. All body parts are sold as is. MONTEGO 2005 Roof Motor .FREE SHIPPING
  • Used. Offer #2 priced at $65.00 + $15.93 shipping estimate = $80.93* total. I look forward to getting you fixed up and in tip top shape.+$15.93 shipping
  • New. Offer #3 priced at $295.00 + $0.00 shipping estimate = $295.00* total. PRODUCTION INSTALLED. MOTOR ASSY.FREE SHIPPING
  • Used. Offer #4 priced at $107.50 + $0.00 shipping estimate = $107.50* total. Search for more parts from this donor vehicle. Sun Roof Motor.FREE SHIPPING

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