DODGE OE 68439759AA Engine Coolant Temperature Sensor Ring
fits model: Hornet. make: Dodge. year: 1925–2024.
( Brand: Dodge Oe ), ( Manufacturer Part Number: 68439759AA ), ( Part Type: Ring Engine Sensor ), ( Product Type: Engine Cooling ), ( Universal Fitment: Direct Replacement ), ( Product Subtype: Cooling System Switches, Sensors Relays ), ( Department: Oem )
Review DODGE OE Engine Coolant Temperature Sensor O ring fits HORNET 1925–2024
The **Dodge 68439759AA O-Ring for the 2024-2025 Ram 1500 (Hornet) Engine Coolant Temperature Sensor** is a precision-engineered sealing component designed to ensure a leak-free and reliable fit within the engine s coolant temperature sensor assembly. Crafted from high-quality **Nitrile (Buna-N) rubber**, this O-ring is engineered to withstand the extreme thermal cycling, chemical exposure, and pressure fluctuations inherent in modern high-performance and turbocharged V6 and V8 powertrains. The part is meticulously manufactured to meet or exceed **OEM specifications**, featuring a **consistent cross-sectional diameter** and **smooth, uniform surface finish** to prevent premature wear or deformation, which could lead to coolant leaks or sensor malfunctions. Ideal for applications where the engine coolant temperature sensor (ECT) interfaces with the engine block or intake manifold, this O-ring provides an airtight seal that resists swelling from coolant additives, cracking under freeze-thaw cycles, or degradation from prolonged exposure to ethylene glycol-based fluids. Whether replacing a worn-out O-ring during routine maintenance or addressing a coolant leak in a **3.6L Pentastar V6** or **5.7L HEMI V8** engine, this aftermarket replacement is a direct drop-in solution that restores factory-level performance and longevity to the sensor housing. Its compatibility with the **2024-2025 Dodge Ram 1500 (Hornet trim)** ensures a perfect fit, eliminating the need for modification or additional sealants, while its durable construction helps maintain optimal engine temperature readings and prevent overheating risks.
**Pros and Cons of buying a Dodge Part Number 68439759AA for a 2024-2025 Ford Mustang Hornet Engine Coolant Temperature Sensor O-Ring**
### **Pros:**The part listed as **Dodge 68439759AA** is often a **direct-fit or aftermarket equivalent** designed to replace the O-ring for the coolant temperature sensor (CTS) in the 2024-2025 Ford Mustang Hornet (which shares components with the Dodge Hornet). Here are the key advantages:
1. **Compatibility** This part is likely engineered to fit the **2024-2025 Ford Mustang Hornet s coolant temperature sensor**, ensuring proper sealing and preventing leaks.
2. **Cost-Effective Replacement** Compared to buying a full sensor assembly, replacing just the O-ring is significantly cheaper, making it a budget-friendly fix for a common wear issue.
3. **Easy Installation** O-rings are small, straightforward components that typically require minimal tools (often just a screwdriver or socket) to replace, reducing labor costs.
4. **Prevents Coolant Leaks** A failing O-ring can cause coolant leaks, overheating, or warning lights. Replacing it proactively avoids more serious engine damage.
5. **Aftermarket Reliability** Many aftermarket O-rings (including those branded under Dodge part numbers) are made from high-quality materials like **Viton or silicone**, which resist heat, oil, and coolant degradation better than standard rubber.
6. **Warranty Coverage** If purchased from a reputable dealer or online retailer, some aftermarket O-rings may come with a limited warranty, providing peace of mind.
7. **Quick Turnaround** Since these are small parts, they are usually in stock at auto parts stores or available for fast shipping online.
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### **Cons:** While this replacement is generally a simple fix, there are potential drawbacks to consider:1. **Potential Counterfeit or Low-Quality Parts** Some aftermarket O-rings, especially if bought from untrusted sellers, may be **cheaply made, brittle, or improperly sized**, leading to leaks or failure.
2. **Incorrect Part Number Misapplication** The **Dodge 68439759AA** may not be the exact O-ring for the Hornet s CTS sensor. Some Ford-specific sensors use a different size or material. Double-checking with the **Ford part number** (if available) is crucial.
3. **Sensor Itself May Need Replacement** If the coolant temperature sensor is already damaged (e.g., corroded, cracked, or faulty), replacing just the O-ring won t fix underlying sensor issues, leading to recurring problems.
4. **Installation Mistakes** If the O-ring is not seated correctly or the sensor is overtightened, it can **damage the sensor threads or cause leaks**.
5. **Limited Availability** Some specialty auto parts stores may not carry this exact O-ring, requiring an online purchase, which could introduce shipping delays.
6. **Environmental Factors** If the vehicle is used in extreme conditions (e.g., high heat, salt exposure, or frequent short trips), even a high-quality O-ring may wear out faster than expected.
7. **No Long-Term Guarantee** Unlike a full sensor replacement, an O-ring is a consumable part that may need replacement again in the future, especially if coolant quality is poor.
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### **Conclusion:**Replacing the **coolant temperature sensor O-ring (Dodge 68439759AA equivalent)** in your 2024-2025 Ford Mustang Hornet is a **cost-effective, low-risk solution** for preventing coolant leaks and overheating. The process is simple, and the part is widely available, making it a practical choice for DIYers or mechanics. However, **verifying compatibility** with the exact sensor model and ensuring the part is from a trusted source are critical to avoid counterfeit or mismatched components.
If the sensor itself is failing (e.g., erratic readings, persistent warning lights), replacing just the O-ring is a temporary fix consider upgrading to a **new sensor** if symptoms persist. For most cases, this O-ring replacement is a **smart, preventative maintenance step** that extends the life of the sensor and engine.
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### **Recommendation:**1. **Confirm Compatibility** Check the **exact Ford part number** for your Hornet s coolant temperature sensor to ensure the O-ring fits. If unsure, consult a Ford dealer or an online parts database.
2. **Purchase from a Reputable Source** Buy from **RockAuto, Amazon (with verified seller reviews), or a trusted local auto parts store** to avoid counterfeit parts.
3. **Use High-Quality Materials** Opt for an O-ring made from **Viton or silicone** if available, as these resist heat and coolant better than standard rubber.
4. **Inspect the Sensor** While replacing the O-ring, check the sensor for **corrosion, cracks, or resistance issues** (using a multimeter). Replace the sensor if it s faulty.
5. **Follow Proper Installation** Ensure the O-ring is **lubricated with clean coolant or dielectric grease** before installation to prevent damage during threading.
6. **Monitor for Leaks** After replacement, check for **coolant leaks** under the hood and monitor the temperature gauge for abnormal readings.
**Final Verdict:** This O-ring replacement is a **wise, low-cost solution** for maintaining your Hornet s cooling system, provided the part is correctly specified and installed. If in doubt, consult a mechanic to confirm the right approach.
Details:
Meticulously engineered and tested for unsurpassed reliability. Replaces Original OE Part #: 68439759AA. Designed to look and function like the part your vehicle came with. Made using the finest materials and advanced technology, Dodge OE products offer quality, performance, reliability stands behind.
Engine Coolant Temperature Sensor O-Ring 68439759AA by Dodge OE. Crafted from premium-quality materials for long-lasting service. Features: Genuine Dodge OEM part designed for your make, model, and year. Guaranteed to meet Dodge standards of quality and performance.
Engineered to offer trouble-free installation without modifications.
part #: 68439759aa price
- $30.40
specifications ocoosys:
- for models: Hornet
- for makes: Dodge
- for years: 1925-2024
- brand: Dodge Oe
- mpn: 68439759aa
- part type: Ring Engine Sensor
- product type: Engine Cooling
- universal fitment: Direct Replacement
- product subtype: Cooling System Switches, Sensors Relays
- department: Oem
general ocoosys:
- Car Truck Parts Accessories > Engine Cooling Components > Other Engine Cooling Components
- condition: New
shipping ocoosys:
- class: Standard
- service: FedEx Ground / FedEx Home Delivery
- transit: 3-6 Days
- cost: $19.65
- type: Calculated
- carrier: FedEx
returns ocoosys:
- time: 30 Days
- paid by: Seller
- policy: Returns Accepted
offer ocoosys:
- started: March 27, 2026
- quantity: 5
- options: Ship-to-home
- sold: 0
- availability: In Stock
seller ocoosys:
- city: Brunswick, Ohio
- # reviews: 366718
- rating: 98.9%
payments ocoosys:
- wallet: Apple-pay
- credit card: Diners-club
- other
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