UCG 1664730-C7 Upper Rear Engine Mount Comolement Navidstar 255661 International Prostar

( Brand: Ucg ), ( Manufacturer Part Number: 1664730-C7 ), ( Items Included: Rear Mount ), ( Type: Engine Mount ), ( Placement On Vehicle: Upper ), ( Material: Rubber, Steel ), ( Vintage Part: No ), ( Ipn: 255661 ), ( Manufacturer Warranty: 1 Month ), ( Country Of Origin: Colombia )

Review UCG Upper Rear Engine Mount Comolement International Navidstar Prostar

The **UCG 1664730-C7 Upper Rear Engine Mount** is a precision-engineered replacement component specifically designed for the **Complement International NavidStar ProStar** series of commercial vehicles, ensuring optimal performance, durability, and reliability in demanding on-road and off-road applications. Crafted from high-grade, reinforced rubber with a robust steel core, this engine mount is engineered to absorb and dissipate vibrations, shocks, and torsional forces generated by the vehicle s powerful diesel engine, thereby minimizing wear on both the engine and the chassis. The mount s robust construction prevents excessive movement, reducing stress on critical engine components such as the crankshaft, cylinder block, and exhaust manifold, while also enhancing overall drivability by maintaining proper engine alignment and positioning. Ideal for heavy-duty applications, this mount is built to withstand prolonged exposure to extreme temperatures, moisture, and harsh operating conditions, making it a long-lasting solution for fleet operators, tow truck drivers, and off-road enthusiasts who demand dependable performance. Its precise fitment ensures seamless integration with the NavidStar ProStar s engine bay, while its durable design helps extend the lifespan of the engine and surrounding components, ultimately contributing to reduced maintenance costs and improved vehicle longevity. Whether used in construction, agriculture, or commercial transport, this upper rear engine mount delivers the structural support and vibration isolation necessary to keep the engine running smoothly under the most demanding workloads.

### **Pros and Cons of buying a UCG 1664730-C7 Upper Rear Engine Mount (Complement International Navistar ProStar)**

1. **OEM Compatibility** This part is designed as an original equipment manufacturer (OEM) replacement, meaning it should fit and function identically to the factory component. This reduces the risk of compatibility issues with the Navistar ProStar engine bay.

2. **Durability and Performance** UCG (UnderCar Group) is a reputable supplier of heavy-duty aftermarket parts, often using high-quality materials and manufacturing processes. The upper rear engine mount is critical for vibration dampening and engine stability, so a well-built part can improve longevity and reduce stress on other components.

3. **Warranty and Support** UCG typically offers warranties on their parts, providing some assurance against defects. Additionally, they have customer support to assist with installation or troubleshooting if issues arise.

4. **Cost-Effective Alternative to OEM** While not an exact OEM part, this aftermarket option is often more affordable than purchasing directly from Navistar or the dealership. This makes it a practical choice for budget-conscious fleet operators or individual owners.

5. **Ease of Installation** As an aftermarket part, it may be easier to source and install compared to waiting for OEM parts, which can sometimes involve longer lead times.

6. **Compatibility with Modifications** If you ve made engine or suspension modifications, an aftermarket mount like this may offer more flexibility in terms of fitment and performance tuning.

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1. **Not True OEM** While designed to match the OEM part, it may not be an exact replica in terms of material composition, tolerances, or build quality. Some owners report slight differences in feel or durability compared to genuine OEM mounts.

2. **Potential Quality Variations** Aftermarket parts can sometimes vary in quality depending on the batch or supplier. While UCG is generally reliable, there is a slight risk of receiving a subpar unit, especially if purchased from a third-party seller rather than directly from the manufacturer.

3. **Installation Complexity** Engine mounts are critical components, and improper installation can lead to engine misalignment, excessive vibration, or even damage to the engine or transmission. If you re not experienced with heavy-duty vehicle maintenance, professional installation is recommended.

4. **Limited Customization** Unlike some high-performance aftermarket mounts, this part is designed for standard OEM replacement rather than performance tuning. If you re looking for a mount that reduces vibration aggressively or allows for engine tuning, you may need a specialized part.

5. **Warranty Limitations** While UCG offers warranties, they may not cover installation errors or damage caused by improper handling. Always review the warranty terms before purchasing.

6. **Potential for Counterfeit Parts** Buying from unauthorized sellers (e.g., eBay, Amazon, or untrusted dealers) increases the risk of receiving a counterfeit or low-quality part. Always verify the seller s authenticity and check for UCG s official branding.

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The **UCG 1664730-C7 Upper Rear Engine Mount** is a solid aftermarket option for Navistar ProStar owners seeking a cost-effective OEM replacement. It offers durability, compatibility, and ease of sourcing while maintaining a high standard of quality from a reputable brand. However, it is not a true OEM part, and there is a slight risk of quality variations or installation challenges if not handled properly.

For most users, this part is a **reliable and practical choice**, especially if you prioritize affordability and compatibility over absolute OEM precision. If you re working on a fleet vehicle or a high-mileage truck, investing in a quality aftermarket mount like this can save money while maintaining performance.

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- **Buy Directly from UCG or an Authorized Dealer** Avoid third-party sellers to ensure you receive a genuine part.

- **Verify Installation Requirements** Consult the installation manual or seek professional help if you re unsure about mounting the engine correctly.

- **Check for Warranty Coverage** Confirm the warranty terms before purchase to understand what is and isn t covered.

- **Consider Professional Installation** Given the importance of engine mounts, professional installation is highly recommended to avoid alignment or vibration issues.

- **Compare with OEM Options** If budget allows, weigh the cost of this aftermarket part against the OEM part to determine the best value for your needs.

**Final Verdict:** This is a **good aftermarket replacement** for the Navistar ProStar upper rear engine mount, suitable for most owners looking for a balance of quality and affordability. However, always prioritize proper installation to ensure optimal performance and safety.

Details:

Made of durable rubber and steel, this rear mount provides a stable secure connection for the engine, ensuring optimal performance longevity. With a manufacturer warranty of 1 month and compatibility with part number 255661, this engine mount offers reliability peace mind for your vehicle.

part #: 1664730c7 price

• $22.57

specifications engimou:

• brand: Ucg
• mpn: 1664730-c7
• items included: Rear Mount
• type: Engine Mount
• placement on vehicle: Upper
• material: Rubber, Steel
• vintage part: No
• ipn: 255661
• manufacturer warranty: 1 Month
• country of origin: Colombia

returns engimou:

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

general engimou:

• Car Truck Parts Accessories > Engines Engine Parts > Engine Mounts
• condition: New

seller engimou:

• rating: 0.0%
• # reviews: 0
• city: Orlando, Florida

shipping engimou:

• type: Calculated
• transit: 5-12 Days
• class: Standard
• carrier: USPS
• cost: $9.69
• service: USPS Ground Advantage

offer engimou:

• availability: In Stock
• started: May 27, 2026
• sold: 0
• quantity: 1
• best offers: True
• options: Ship-to-home

payments engimou:

• wallet: Apple-pay
• other
• credit card: Discover