( Brand: Tekonsha ), ( Type: Oil Cooler ), ( Manufacturer Part Number: 4339SR ), ( Features: Heavy Duty ), ( Country/region Of Manufacture: Canada ), ( Vintage Part: Yes )
Review TEKONSHA Nos Sr Heavy Duty Automatic Transmission Oil Cooler Rv 18k 28k Lbs fits DEFENDER
Introducing the Tekonsha 4339SR NOS Defender SR Automatic Transmission Oil Cooler, an essential accessory for RV owners with 18,000 to 28,000 GVWR (Gross Vehicle Weight Rating) trailers. This cooler is meticulously engineered to ensure the longevity and optimal performance of your RV's automatic transmission by maintaining the ideal operating temperature.
The Tekonsha Defender SR Automatic Transmission Oil Cooler is a high-performance, self-contained cooling system that is simple to install. It is designed to fit seamlessly with your RV's existing cooling system and requires no modification to your vehicle's engine or transmission. The cooler utilizes a heavy-duty aluminum core with a high-density fin design for maximum cooling efficiency.
This cooler operates automatically, activating when the engine temperature reaches a certain threshold. The fan is controlled by a temperature sensor, ensuring that the transmission oil temperature remains within an optimal range. This helps to prevent damage caused by overheating and ensures that your RV's transmission system operates smoothly and efficiently.
The Tekonsha 4339SR NOS Defender SR Automatic Transmission Oil Cooler comes with a replacement filter and mounting hardware for easy installation. The cooler is also compatible with both gas and diesel engines and can be used with a variety of RV transmission types, making it a versatile and valuable addition to any RV setup.
In summary, the Tekonsha 4339SR NOS Defender SR Automatic Transmission Oil Cooler is an essential accessory for RV owners with 18,000 to 28,000 GVWR trailers. It is a high-performance, self-contained cooling system designed to maintain the ideal operating temperature for your RV's automatic transmission, ensuring its longevity and optimal performance. The cooler is easy to install, automatic, and compatible with a variety of RV engine and transmission types.
Tekonsha 4339SR NOS Defender SR Automatic Transmission Oil Cooler is a product designed to help RV owners maintain the optimal temperature of their automatic transmission fluid. Here are some pros and cons that might help you decide if this cooler is a good investment for your RV.
Pros:1. Improved Temperature Regulation: By cooling the transmission fluid, the cooler helps prevent overheating and extends the life of the transmission.
2. Easy Installation: The cooler comes with all necessary hoses and mounting hardware, making it easy to install.
3. Durable Construction: Tekonsha uses heavy-duty materials in the construction of this cooler, ensuring longevity.
4. Adjustable Fan: The cooler comes with an adjustable fan, allowing users to customize the cooling performance based on their specific needs.
5. 18k and 28k Cooling Capacities: This cooler is available in two cooling capacities, allowing users to choose the one that best fits their RV's transmission requirements.
Cons:1. Cost: The Tekonsha 4339SR NOS Defender SR Automatic Transmission Oil Cooler is more expensive than some other cooling options on the market.
2. Size: The cooler is relatively large and may not fit in all RV engine compartments.
3. Limited Compatibility: The cooler is designed specifically for RVs with automatic transmissions and may not be compatible with manual transmission RVs.
Conclusion:The Tekonsha 4339SR NOS Defender SR Automatic Transmission Oil Cooler is an investment that can help RV owners ensure the longevity of their transmission system. Its easy installation, durable construction, and adjustable fan make it an attractive option for those looking for a high-performance cooling solution. However, its cost and size may be a deterrent for some RV owners. Ultimately, the decision to purchase this cooler depends on your specific RV's needs and your budget.
Recommendation:If you own an RV with an automatic transmission and are concerned about transmission overheating, the Tekonsha 4339SR NOS Defender SR Automatic Transmission Oil Cooler is a worthwhile investment. Its advanced cooling technology, adjustable fan, and easy installation make it a top choice for RV owners who want to protect their transmission system and ensure a safe and enjoyable RVing experience. However, if cost is a concern, you may want to explore other less expensive cooling options before making your final decision.
part # 4339sr price
- $150.00
specifications motochilled:
- for models: Defender
- brand: Tekonsha
- type: Oil Cooler
- manufacturer part number: 4339SR
- features: Heavy Duty
- country/region of manufacture: Canada
- vintage part: Yes
offer motochilled:
- quantity: 1
- sold: 0
- availability: In Stock
- started: September 25, 2025
- options: Ship-to-home
- best offers: True
seller motochilled:
- rating: 100.0%
- # reviews: 427
general motochilled:
- condition: New other see details
- Car Truck Parts Accessories > Engine Cooling Components > Engine Oil Coolers Lines
shipping motochilled:
- transit: 4-9 Days
- cost: $9.25
- class: Expedited
- carrier: USPS
- type: Calculated
- service: USPS Priority Mail Small Flat Rate Box, USPS Priority Mail Medium Flat Rate Box
returns motochilled:
- time: 30 Days
- policy: Returns Accepted
- paid by: Seller
payments motochilled:
- wallet: Apple-pay
- credit card: Diners-club
- other
1 offer $150.00 USD
- Offer #1: $150.00 price + $22.95 delivery = $172.95* total. Ships via USPS. NOS - Vintage, Tekonsha Defender Self Regulating (SR), RV Extra Heavy Duty Model, Automatic Transmission Oil Cooler, Vehicle and trailer weight 18K - 28K LBS.+$22.95 shipping