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  2. sku: 20837226005757721
  3. MOPAR 3683946

MOPAR 3683946 Heat Riser Control Kit

fits make: Dodge, Mopar.

3683946 Mopar Unused Dodge Heat Riser Control Kit

( Brand: Mopar ), ( Manufacturer Part Number: 3683946 ), ( Part Type: Heat Control ), ( Country Of Origin: United States )

Review MOPAR Unused Dodge Heat Riser Control Kit

The **Mopar 3683946 Dodge Heat Riser Control Kit** is a precision-engineered aftermarket solution designed to optimize the performance and efficiency of modern Dodge vehicles equipped with a heat riser system, particularly those with turbocharged or high-performance engines. This kit is meticulously crafted to address the nuanced behavior of the heat riser valve, which regulates the flow of exhaust gases through the underhood area, balancing cooling efficiency with engine performance. The system operates by controlling the temperature of critical components like the turbocharger, intercooler, and engine bay, ensuring optimal operating conditions while minimizing heat buildup that could otherwise lead to reduced efficiency, premature wear, or even catastrophic failure. The kit includes a high-quality, durable **heat riser valve actuator**, which is engineered to provide smooth, responsive operation, eliminating the common issues of sticking or erratic behavior that can plague stock systems. Compatible with a range of Dodge models, including those from the **Charger, Challenger, Durango, and Ram lineup**, this kit is particularly beneficial for enthusiasts and performance-focused drivers who demand reliability and precision in their vehicle s cooling and exhaust systems.

At its core, the **Mopar 3683946 Heat Riser Control Kit** is built to enhance the longevity of turbocharged applications by preventing excessive heat transfer to the turbocharger housing, which can degrade performance and reduce efficiency over time. The kit s actuator is designed to work in tandem with the vehicle s engine control module (ECM), providing real-time adjustments based on engine load, throttle position, and exhaust gas temperature. This dynamic control ensures that the heat riser valve opens or closes at the optimal moment, maintaining a balanced temperature profile that protects sensitive components while maximizing power delivery. The materials used in the construction of the kit are selected for their durability and resistance to high temperatures, ensuring long-term reliability even under demanding driving conditions. Installation is straightforward, requiring minimal modifications to the existing exhaust system, and the kit is engineered to integrate seamlessly with the vehicle s factory wiring harness, though additional harness connectors may be necessary depending on the specific model.

For performance-minded drivers, the **Mopar 3683946 Heat Riser Control Kit** offers a subtle yet significant advantage by reducing the risk of turbo lag and improving throttle response. By preventing excessive heat from accumulating in the turbocharger housing, the kit helps maintain consistent boost levels and ensures that the turbo spools up more efficiently, particularly during aggressive acceleration or high-load scenarios. Additionally, the kit contributes to overall engine bay cooling, reducing the strain on radiator and cooling system components, which can be particularly beneficial in high-performance or towing applications where heat rejection is critical. Whether used in a daily driver, a track-focused vehicle, or a heavy-duty towing setup, this kit serves as a proactive measure to safeguard the integrity of the exhaust and cooling systems, ultimately extending the lifespan of the vehicle s most critical components. With its blend of precision engineering, compatibility with a wide range of Dodge applications, and focus on both performance and reliability, the **Mopar 3683946 Heat Riser Control Kit** stands as an essential upgrade for any driver seeking to enhance their vehicle s efficiency and durability.

The **Mopar 3683946 Dodge Heat Riser Control Kit** is designed to manage the heat riser valve in certain Dodge vehicles, particularly those with the 5.7L or 6.1L Hemi V8 engines. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the Mopar 3683946 Heat Riser Control Kit**

1. **Improved Engine Efficiency**

The heat riser valve controls the flow of exhaust gases, allowing the engine to warm up more quickly and maintain optimal operating temperatures. This can lead to better fuel efficiency and reduced wear on engine components during cold starts.

2. **Enhanced Cold-Weather Performance**

In colder climates, the heat riser valve helps direct exhaust heat to the engine bay, which speeds up oil and coolant warming. This reduces cold-start emissions and improves drivability in low temperatures.

3. **OEM Quality and Reliability**

Mopar is the official aftermarket brand for Chrysler/Dodge vehicles, meaning this kit is designed to meet or exceed factory specifications. It is built to the same standards as original equipment, ensuring compatibility and durability.

4. **Easy Installation**

The kit is relatively straightforward to install, especially for those with basic mechanical experience. It typically involves removing the old heat riser valve and replacing it with the new unit, along with any necessary wiring or mounting adjustments.

5. **Potential Emissions Compliance**

In some regions, proper heat riser function is required to meet emissions standards. Using an OEM or high-quality aftermarket kit ensures compliance with regulatory requirements, avoiding potential issues during inspections.

6. **Compatibility with Aftermarket Modifications**

If you ve modified your engine (e.g., turbocharging, forced induction, or performance tuning), this kit can help manage exhaust temperatures more effectively, reducing the risk of overheating or damage to aftermarket components.

7. **Long-Term Durability**

Since Mopar parts are designed for longevity, this kit should last as long as the original component, provided it is installed correctly and maintained properly.

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### **Cons of the Mopar 3683946 Heat Riser Control Kit**

1. **Limited Applicability**

This kit is specifically designed for certain Dodge models (e.g., 2005 2013 Ram 1500/2500/3500 with 5.7L/6.1L Hemi engines). If your vehicle does not match the listed applications, purchasing this kit will be unnecessary and a waste of money.

2. **Potential for Overheating in Hot Climates**

While the heat riser valve is beneficial in cold weather, in extremely hot conditions, it may contribute to higher engine bay temperatures. This could stress cooling systems or components like the radiator, water pump, or electrical systems.

3. **Cost Relative to Alternatives**

The Mopar kit is priced competitively for an OEM-quality part, but if you re on a tight budget, generic aftermarket alternatives may be cheaper. However, these alternatives might not offer the same level of reliability or compatibility.

4. **Installation Complexity for Non-Mechanics**

Although the installation is generally simple, some users may find it challenging if they lack experience with engine bay components. Improper installation (e.g., incorrect wiring or sealing) could lead to performance issues or failure.

5. **Possible False Positives in Diagnostics**

If the kit fails or is installed incorrectly, it could trigger error codes (e.g., P0420 for catalytic converter efficiency) or cause the check engine light to illuminate, requiring additional diagnostics to identify the root cause.

6. **Environmental and Emissions Trade-offs**

While the heat riser valve improves cold-start performance, it may slightly increase tailpipe emissions in warm conditions due to the way it manages exhaust flow. However, this is typically negligible compared to the benefits in cold weather.

7. **Wear and Tear on Related Components**

If the heat riser valve is stuck open or closed, it can cause uneven stress on the exhaust manifold, catalytic converter, or oxygen sensors over time. Regular maintenance is necessary to prevent related issues.

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### **Conclusion**

The **Mopar 3683946 Heat Riser Control Kit** is a practical and reliable solution for Dodge vehicles equipped with the 5.7L or 6.1L Hemi engines, particularly in regions with cold winters. Its OEM-quality construction ensures compatibility and durability, while its primary function improving cold-weather performance and engine efficiency justifies its use for most drivers in temperate to cold climates.

However, the kit is not without drawbacks. Its effectiveness is limited to specific applications, and in hot climates, it may contribute to higher engine bay temperatures. Additionally, improper installation or failure could lead to diagnostic headaches or reduced performance. For most owners who prioritize reliability and cold-weather drivability, the benefits outweigh the cons.

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### **Recommendation**

**Purchase the Mopar 3683946 Heat Riser Control Kit if:**

- Your vehicle is a **2005 2013 Dodge Ram 1500/2500/3500 with a 5.7L or 6.1L Hemi engine** and you experience issues with cold starts, poor idle, or excessive emissions in winter.

- You value **OEM-quality parts** and want to avoid potential compatibility issues with aftermarket alternatives.

- You are comfortable with **basic mechanical work** or plan to have it installed by a professional.

- You live in a **cold or mixed climate** where the benefits of quicker engine warm-up outweigh potential overheating concerns.

**Avoid purchasing it if:**

- Your vehicle does **not** fall within the listed applications, as the kit will not be compatible.

- You live in a **very hot climate** where engine bay heat is already a significant concern, and you prefer a solution that reduces heat rather than directs it.

- You are on a tight budget and can find a **high-quality aftermarket alternative** at a lower cost (though Mopar s reliability may still be worth the investment).

- You are unsure about **installation** and do not have access to a mechanic to perform the job correctly.

**Final Verdict:**

For the right vehicle and driving conditions, the Mopar 3683946 Heat Riser Control Kit is a **solid, cost-effective upgrade** that enhances performance and longevity. If your needs align with its intended use, it is a recommended purchase. Always verify compatibility with your specific vehicle model and year before buying.

Details:

A5 Unused Mopar Dodge 3683946 heat riser control kit ; comes with everything shown including paperwork box has shelf wear, it was never used.

part #: 3683946 prices

  • $125.00-$168.00

specifications emissyste:

  • for makes: Dodge, Mopar
  • brand: Mopar
  • mpn: 3683946
  • part type: Heat Control
  • country of origin: United States

shipping emissyste:

  • class: Standard
  • service: Standard
  • transit: 2-6 Days
  • type: Fixed
  • cost: $7.99

payments emissyste:

  • other
  • wallet: Paypal
  • credit card: Mastercard

returns emissyste:

  • policy: No Returns

seller emissyste:

  • rating: 100.0%
  • city: Mansfield, Ohio
  • # reviews: 16134

offer emissyste:

  • options: Ship-to-home
  • availability: In Stock
  • started: March 19, 2026
  • sold: 0
  • best offers: True
  • quantity: 1

general emissyste:

  • condition: Used
  • Car Truck Parts Accessories > Exhaust Emission Systems > Other Exhaust Emission Parts
for makes: dodge, mopar, part type: heat control, country of origin: united states,
category: auto parts > car truck parts accessories > exhaust emission systems > exhaust emission parts, sku: 20837226005757721,
Mopar 3683946 Is Similar To:
emissyste logo
5 offers $125.00–$168.00 USD
  • Used. Offer #1 priced at $125.00 + $8.99 shipping estimate = $133.99* total. a5 Unused Mopar Dodge heat riser control kit ; comes with everything shown including paperwork ; box has shelf wear , it was never used.+$8.99 shipping
  • New. Offer #2 priced at $168.00 + $10.60 shipping estimate = $178.60* total. NOS heat riser valve kit box says 65 imperial 413 may fit other years and engines and models.+$10.60 shipping
  • New other (see details). Offer #3 priced at $145.00 + $8.75 shipping estimate = $153.75* total. ( will not fit the HP Exhaust Manifold with the 2-5/16 Flapper). NOS Mopar 1972-77 Exhaust Manifold Heat Riser Kit PT # CHRYSLER Dodge.+$8.75 shipping
  • New other (see details). Offer #4 priced at $259.99 + $10.00 shipping estimate = $269.99* total. Year - 1970; 1971; 1972; 1973; 1974. Contains all the parts needed to renew the valve.+$10.00 shipping
  • New. Offer #5 priced at $69.00 + $6.25 shipping estimate = $75.25* total. +$6.25 shipping

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