fits model: Mks, Gt, Mkt, Mustang, Taurus. make: Ford, Lincoln. year: 2005–2015.

( Brand: Rareelectrical ), ( Manufacturer Part Number: REPF502507A2 ), ( Part Type: Horn ), ( California Prop 65 Warning: This Product May Expose You To Chemicals Which Are Known To The State Of California To Cause Cancer And Birth Defects Or Other Reproductive Harm. For More Information Go To Www.p65warnings.ca.gov ), ( Country Of Origin: Taiwan ), ( Source: Aftermarket )
The **REFP502507A2 Horn Assembly** is a high-performance, direct-fit replacement horn system meticulously engineered to restore the bold, commanding presence of the audio signature in 2005 through 2015 Ford Mustang, Taurus, and Lincoln MKS models, including the sport-tuned SEL and GT variants, as well as the 3.5L and 3.7L V6-equipped vehicles with the **DA5Z13832A** horn wiring harness. Designed with precision for compatibility, this dual-horn assembly integrates seamlessly into the vehicle s existing electrical system, ensuring a clean and secure installation without the need for modifications to the factory wiring. Crafted from durable, corrosion-resistant materials, the horns feature a robust **12-volt, 120-watt** output, delivering a deep, resonant tone that cuts through ambient noise with unmatched clarity ideal for alerting pedestrians, signaling intent, or simply asserting the vehicle s presence on the road. The assembly includes a **pre-wired harness** with high-quality connectors that resist oxidation and ensure a reliable electrical connection, reducing the risk of intermittent operation or failure over time. Whether navigating city streets or cruising on the highway, this horn system provides a sharp, authoritative sound that enhances safety and adds a touch of sporty confidence to the driving experience. Built to meet or exceed OEM standards, it offers a perfect balance of performance and longevity, making it an essential upgrade for enthusiasts seeking to elevate their vehicle s functionality and character.
### **Pros and Cons of Buying a 2005 2015 Ford Mustang (Repair Part: RPF502507A Horn Assembly)**
#### **Overview**
The **RPF502507A** is the horn assembly for the **2005 2015 Ford Mustang, Taurus, Lincoln MKS, and Lincoln GT**, including models with **3.5L, 3.7L, and 4.6L engines**. This part is a common aftermarket replacement for failing stock horns. Below is a detailed breakdown of its advantages and disadvantages.
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### **Pros of Buying RPF502507A (or a Replacement Horn Assembly)**
1. **Reliability and Durability**
- Aftermarket horn assemblies like the **RPF502507A** are often built with **heavier-duty materials** (e.g., reinforced steel, better gaskets) compared to some OEM horns, which can degrade over time.
- Many aftermarket options include **dual-tone or louder horns**, improving visibility and safety.
2. **Cost-Effective Replacement**
- Replacing a single horn can be expensive if the OEM part is no longer available or requires labor-intensive installation.
- The **RPF502507A** (or similar aftermarket units) is typically **cheaper than OEM replacements**, especially for older models where parts are discontinued.
- Prices range from **$30 $80**, depending on brand and features.
3. **Easier Installation**
- Many aftermarket horn assemblies come with **pre-wired or plug-and-play designs**, reducing wiring hassles.
- Some models include **universal mounting brackets**, making installation faster than OEM parts that may require modifications.
4. **Improved Sound Quality**
- Stock horns on older Mustangs (especially pre-2010) can become **weak or intermittent**.
- Aftermarket horns like **Crown, Sound Off, or Vengeance** offer **louder, clearer, and more consistent** audio, which is beneficial for safety.
5. **Wider Availability**
- Unlike OEM parts, aftermarket horns are **easily found** on platforms like **Amazon, RockAuto, eBay, or local auto parts stores**.
- No need to wait for special ordering or dealership sourcing.
6. **Compatibility with Modifications**
- If you ve upgraded your Mustang s **exhaust, suspension, or audio system**, a louder aftermarket horn ensures it **stands out more** without needing additional amplification.
7. **Prevents Further Damage**
- A failing horn can **short-circuit wiring** or damage the **horn relay/switch** if ignored.
- Replacing it early avoids **costlier electrical issues** down the line.
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### **Cons of Buying RPF502507A (or a Replacement Horn Assembly)**
1. **Potential Quality Variations**
- **Cheap aftermarket horns** (especially no-name brands) may **wear out faster** than OEM or mid-tier aftermarket options.
- Some units have **poor sealing**, leading to **moisture ingress** and corrosion over time.
2. **Noise and Vibration Concerns**
- **Very loud horns** (e.g., 120 dB) can **vibrate excessively**, potentially damaging the **housing or mounting points**.
- Some aftermarket horns produce **unpleasant tones** (e.g., harsh, metallic) rather than a smooth, deep sound.
3. **Installation Challenges**
- While many aftermarket horns are **easier to install**, some require **wiring adjustments** (e.g., swapping horn relay pins).
- **Improper mounting** can lead to **loose fits**, causing rattles or electrical issues.
4. **Compatibility Issues with Some Models**
- The **RPF502507A** is designed for **2005 2015 Mustangs, Tauruses, and MKS/GTs**, but **exact fitment can vary** by year and trim.
- **2011 models with updated wiring harnesses** may need **additional modifications** if the horn switch or relay is incompatible.
5. **Potential for Counterfeit Parts**
- Some sellers on **eBay or Amazon** offer **fake or low-quality knockoffs** that fail quickly.
- Always **check reviews, brand reputation, and seller ratings** before purchasing.
6. **Limited Longevity Compared to OEM (If Available)**
- While aftermarket horns are **cheaper upfront**, some **OEM replacements (if still available)** may last longer if installed correctly.
- However, since OEM parts for these models are **rare**, aftermarket is often the best option.
7. **Possible Void on Warranty (If Applicable)**
- If the vehicle is **still under factory warranty**, installing an aftermarket horn **may void coverage** for horn-related issues.
- Always **check warranty terms** before proceeding.
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### **Conclusion & Recommendation**
#### **Best For:**- **Owners of 2005 2015 Mustangs, Tauruses, or MKS/GTs** experiencing **failing or weak stock horns**.
- **Budget-conscious buyers** who want a **cost-effective, reliable replacement** without dealing with discontinued OEM parts.
- **Enthusiasts who prioritize sound quality and safety** over stock performance.
- **DIYers** who prefer **easy installation** with minimal wiring changes.
#### **Not Ideal For:**- **Those who want the absolute longest lifespan** (though aftermarket horns are still durable if high-quality).
- **Owners who dislike loud or aggressive horn tones** (some aftermarket options are very loud).
- **People who prefer OEM parts for warranty or authenticity** (though this is rare for these models).
#### **Final Recommendation:** **Purchase a reputable aftermarket horn assembly like the RPF502507A (or equivalent) from a trusted brand such as:**- **Sound Off**
- **Crown**
- **Vengeance**
- **Everco**
**Avoid no-name brands** to ensure **longevity and proper fitment**. If possible, **test the horn before finalizing purchase** (some sellers offer return policies).
**Installation Tips:**- **Disconnect the battery** before working on electrical components.
- **Check wiring connections** for corrosion before installing.
- **Secure the horn tightly** to prevent rattles.
- **Consider upgrading the horn relay** if the stock one is failing.
**Overall Verdict:**The **RPF502507A or equivalent aftermarket horn is a smart, cost-effective upgrade** for older Mustangs and related Ford/Lincoln models. It provides **better sound, reliability, and ease of installation** compared to waiting for a failing stock horn. Just **choose a quality brand** and **install it properly** to maximize performance.
As a parts distributor we mostly sell aftermarket any OEM would be noted as such. Aftermarket parts are not sourced from the original vehicle or equipment manufacturer, but designed to function same as - if better than. All parts sold are new. Horn 2005 2015 Ford Mustang Taurus Lincoln Mks Mkt SEL 3.5L 3.7L DA5Z13832A: Replaces Part Numbers Specifications.