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  2. sku: 18277383559301881
  3. 371304C91

371304C91 Prostar Poly Left Door Mirror P/n

fits year: 2007–2014.

371304c91 International 2007-2014 Prostar Poly Left Door Mirror - Used P/n

( Brand: International ), ( Manufacturer Part Number: 371304C91 ), ( Part Type: Door Mirror )

Review INTERNATIONAL Prostar Poly Left Door Mirror Used P/n fits 2007–2014

The **International 371304C91 Polycarbonate Left Door Mirror** (part number 371304C91) is a precision-engineered, high-performance replacement mirror designed specifically for **2007 2014 model year International ProStar medium and heavy-duty trucks**, including the **ProStar 4x2, 6x2, and 6x4 configurations**. Crafted from **toughened polycarbonate material**, this mirror offers superior durability and resistance to impact, weathering, and UV degradation, ensuring long-lasting performance even in the harshest operating conditions. The mirror features a **sleek, aerodynamic design** with a **black powder-coated frame**, blending seamlessly with the truck s exterior while providing a modern, professional appearance. Its **clear polycarbonate lens** delivers an unobstructed, wide-angle view, enhancing visibility for improved safety during backing, lane changes, and blind-spot monitoring. The mounting hardware is **heavy-duty and corrosion-resistant**, designed to withstand constant exposure to road salt, moisture, and temperature fluctuations, ensuring a secure and reliable fit. Whether used in commercial fleets, construction, or long-haul operations, this mirror is engineered to meet the demanding requirements of professional drivers while maintaining a clean, factory-like finish. Ideal for **OEM replacement or upgrade projects**, it guarantees optimal functionality and aesthetic consistency with the original equipment.

### **Pros and Cons of Buying an International 371304C91 (2007 2014 ProStar Poly Left Door Mirror, P/N)**

#### **Pros:**

1. **Compatibility and Fitment** This part is specifically designed for the **International ProStar (2007 2014)** models, ensuring an exact fit without modifications. It is a direct replacement for the original left-side door mirror, reducing the risk of misalignment or improper installation.

2. **Durability and Build Quality** The **polycarbonate (poly) material** used in this mirror is known for its **impact resistance**, making it less prone to cracking or shattering compared to traditional glass mirrors. This is particularly useful in commercial vehicles where mirrors may be subjected to rough handling or collisions.

3. **Visibility and Functionality** The mirror is designed to provide **clear, unobstructed visibility** for the driver, which is critical for safety in large trucks and commercial vehicles. Many aftermarket mirrors offer similar functionality, but OEM or high-quality replacements ensure reliability.

4. **Ease of Installation** Since this is an **OEM or direct replacement part**, it should fit seamlessly into the existing mounting system without requiring additional tools or modifications. This makes it a straightforward upgrade for mechanics or DIY installers.

5. **Weather Resistance** Polycarbonate mirrors are generally **resistant to UV degradation, fogging, and extreme temperatures**, which is beneficial for vehicles operating in varied climates. However, this depends on the specific coating and quality of the part.

6. **Cost-Effective Replacement** Compared to purchasing a **new vehicle**, replacing just the mirror is a **low-cost solution** for restoring functionality. It avoids the need for a full door assembly replacement, saving both time and money.

7. **Availability of Accessories** Some manufacturers offer **extended warranties, rust-proofing treatments, or additional features** (such as heated mirrors or turn signals) that can be added to this part, depending on the supplier.

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#### **Cons:**

1. **Age of the Vehicle** The **2007 2014 ProStar** is an older model, and parts for these vehicles may be **harder to find** compared to newer trucks. If the mirror is damaged, delays in shipping could occur, especially if ordering from a specialized supplier.

2. **Potential for Counterfeit Parts** Since this is an older model, there is a risk of purchasing a **fake or low-quality replica** from untrusted sellers. Always verify the **manufacturer s authenticity** (e.g., ordering from **OEM suppliers, authorized dealers, or reputable aftermarket brands**).

3. **Limited Customization** Unlike some aftermarket mirrors, this is a **stock replacement part**, meaning it may not offer **additional features** (such as LED lighting, Bluetooth integration, or adjustable angles) that newer models might include.

4. **Wear and Tear on Related Components** If the mirror was removed due to **rust, damage, or a failed mechanism**, the surrounding **door frame, hinges, or wiring** may also be degraded. Replacing just the mirror without inspecting these areas could lead to **recurring issues**.

5. **Potential for Rust or Corrosion** Older vehicles, especially those exposed to **salt, moisture, or poor maintenance**, may have **underlying rust** in the mirror housing or mounting points. A new mirror installed on a rusted frame could lead to **loose fit or future failure**.

6. **Limited Warranty Coverage** Depending on the supplier, the warranty for this part may be **short-term or nonexistent**, leaving the buyer responsible for any defects after installation.

7. **Installation Challenges** While designed for easy replacement, **rusted or seized mounting points** could make installation difficult. In some cases, **additional lubrication or cleaning** may be required before fitting the new mirror properly.

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### **Conclusion:**

Buying the **International 371304C91 (2007 2014 ProStar Poly Left Door Mirror)** is a **practical and cost-effective solution** for restoring mirror functionality in an older commercial vehicle. The **polycarbonate construction** provides durability, and the **direct fitment** ensures reliability. However, potential buyers should be aware of **supply chain risks, quality concerns, and underlying vehicle issues** that may affect long-term performance.

If the mirror is being replaced due to **cosmetic damage or minor failure**, this part is a **solid choice**. However, if the issue stems from **structural problems (e.g., rust, wiring faults)**, a **full inspection of the door assembly** is recommended before purchasing.

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### **Recommendation:**

1. **Source from a Trusted Supplier** Purchase from **OEM distributors, authorized dealers, or well-reviewed aftermarket brands** (e.g., **Dorman, Carter, or local truck parts specialists**) to avoid counterfeit parts.

2. **Inspect the Door Assembly** Before installation, check for **rust, loose mounting points, or damaged wiring** that could affect the new mirror s performance.

3. **Consider a Full Door Kit** If the mirror removal exposed **significant rust or wear**, a **complete door repair kit** (including seals, hinges, and rust inhibitors) may be worth the investment for long-term reliability.

4. **Verify Warranty Coverage** Ensure the part comes with **at least a 12 24 month warranty** to protect against manufacturing defects.

5. **Compare Pricing** While this is an OEM-style part, **aftermarket alternatives** (from brands like **Carter or Dorman**) may offer similar quality at a lower cost. Always compare **price, reviews, and return policies** before purchasing.

**Final Verdict:** This mirror is a **reliable and necessary replacement** for the specified ProStar models, but buyers should **prioritize quality sourcing and vehicle inspection** to maximize its lifespan. For most cases, it is the **best available solution** for restoring mirror function without a full door replacement.

Details:

Items shipped UPS Ground cannot go to APO/FPO or Post Office Boxes. We'll do our best to find it so you don't have. Questions, comments or concerns. Material: POLY Power: NO Heated: FREE SHIPPING.

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part #: 371304c91 price

  • $289.99

specifications mirroexter:

  • for years: 2007-2014
  • brand: International
  • mpn: 371304c91
  • part type: Door Mirror

general mirroexter:

  • condition: Used
  • Commercial Truck Parts > Exterior, Body Frame > Mirrors

offer mirroexter:

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

seller mirroexter:

  • city: Spencer, Iowa
  • # reviews: 6368
  • rating: 99.6%

payments mirroexter:

  • other
  • credit card: Diners-club
  • wallet: Paypal

shipping mirroexter:

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

returns mirroexter:

  • paid by: Buyer
  • policy: Returns Accepted
  • time: 30 Days
for years: 2007-2014, part type: door mirror,
category: auto parts > commercial truck parts > exterior, body frame > mirrors, sku: 18277383559301881,
International 371304C91 Is Similar To:
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1 offer $289.99 USD
  • Used. Offer #1 priced at $289.99 + $0.00 shipping estimate = $289.99* total. Material: POLY.FREE SHIPPING

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