
31711AG850 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $50.00 | Condition is Used, 2005 Subaru Legacy Outback TCM Transmission Control Module 31711AG850 DENSO OEM, FREE SHIPPING | 99.6% |
![]() | $40.00 | Top Pick! Condition is Used, 2004-09 Subaru 2.5L Outback Legacy Transmission Control Module Unit 31711AG850, shipping cost = $11.99 | 99.4% |
![]() | $64.00 | Condition is Used, Used Transmission Control Module fits: 2005 Subaru Legacy Transmission under LH, FREE SHIPPING | 99.6% |
![]() | $64.00 | Condition is Used, Used Transmission Control Module fits: 2005 Subaru Legacy Transmission under LH, FREE SHIPPING | 99.6% |
![]() | $64.00 | Condition is Used, Used Transmission Control Module fits: 2005 Subaru Legacy Transmission under LH, FREE SHIPPING | 99.6% |
![]() | $64.00 | Condition is Used, Used Transmission Control Module fits: 2005 Subaru Legacy Transmission under LH, FREE SHIPPING | 99.6% |
![]() | $75.00 | Condition is Used, 2005 Subaru Outback Transmission Computer Control Module TCU TCM 31711AG850 OEM, FREE SHIPPING | 98.9% |
![]() | $83.25 | Top Pick! Condition is Used, '05 SUBARU OUTBACK Transmission control module 2.5L non-turbo OEM 1 Year Wnty!, FREE SHIPPING | ![]() |
![]() | $115.00 | Condition is Used, Used Transmission Control Module fits: 2005 Subaru Legacy Transmission under LH, FREE SHIPPING | 98.8% |
![]() | $124.73 | Condition is Used, Used Transmission Control Module fits: 2005 Subaru Legacy Transmission under LH, shipping cost = $ | 99.7% |
![]() | $215.65 | Top Pick! Condition is Used, Used Transmission Control Module fits: 2005 Subaru Legacy Transmission under LH, shipping cost = $5.00 | 99.0% |
![]() | $215.65 | Condition is Used, Used Transmission Control Module fits: 2005 Subaru Legacy Transmission under LH, shipping cost = $5.00 | 99.0% |
![]() | $215.65 | Condition is Used, Used Transmission Control Module fits: 2005 Subaru Legacy Transmission under LH, shipping cost = $5.00 | 99.0% |

The DENSO 31711AG850 Transmission Control Module (TCM) is a crucial component in the powertrain system of select 2005 Subaru Outback models. Designed and manufactured by DENSO, a leading global automotive technology, manufacturing, and supplier company, this TCM ensures optimal transmission performance and fuel efficiency.
The TCM is responsible for controlling various functions of the vehicle's transmission system, including gear shifting, hydraulic pressure control, and temperature management. It communicates with the engine control module (ECM) and other vehicle systems to maintain the ideal operating conditions for the transmission.
This DENSO TCM is engineered with advanced microcontroller technology, delivering quick and precise responses to various driving conditions. It features a compact and robust design, ensuring reliable performance even in harsh driving environments. The module is also equipped with diagnostic capabilities, allowing for easy identification and resolution of transmission-related issues.
The DENSO 31711AG850 TCM is a direct fit replacement for the original equipment part in select 2005 Subaru Outback models. It comes with a comprehensive warranty, providing peace of mind and confidence in its quality and durability.
Installing the DENSO TCM is a straightforward process, typically involving connecting the electrical connections and securing the module in its original location. The TCM is designed to work seamlessly with the vehicle's existing wiring harness and transmission system, ensuring a hassle-free installation experience.
By choosing the DENSO 31711AG850 Transmission Control Module for your 2005 Subaru Outback, you're investing in a high-quality, reliable, and efficient solution for maintaining the performance and longevity of your vehicle's transmission system.
The Denso 31711AG850 transmission control module (TCM) is a replacement part designed for Subaru Outback vehicles manufactured in 2005. Replacing the TCM can help resolve various transmission-related issues, such as rough shifting, slipping, or delayed engagement. Here are some potential advantages and disadvantages of buying and installing this part:
Advantages:1. Improved transmission performance: A new TCM can help restore the transmission's smooth and efficient operation, leading to better overall driving experience.
2. Addresses specific transmission issues: The Denso 31711AG850 TCM is designed to work specifically with 2005 Subaru Outback models, ensuring a proper fit and function.
3. Potential cost savings: Instead of paying for expensive dealership repairs or rebuilding the transmission, replacing the TCM can be a more cost-effective solution.
4. OEM (Original Equipment Manufacturer) part: Using an OEM part like the Denso 31711AG850 ensures that you are getting a high-quality component that meets Subaru's original specifications.
Disadvantages:1. Installation complexities: Installing a TCM may require advanced automotive knowledge and specialized tools, potentially requiring professional assistance.
2. Cost: Although replacing the TCM may be more cost-effective than other transmission repair options, it still represents a significant investment.
3. Potential for unrelated issues: While replacing the TCM can address transmission-related problems, it may not resolve other issues that could be affecting vehicle performance.
In conclusion, the decision to buy and install the Denso 31711AG850 TCM for a 2005 Subaru Outback depends on various factors, including the vehicle's current condition, your mechanical skills, and your budget. If you're experiencing transmission issues, this part could be an effective solution. However, consider the potential complexities and costs before making a final decision.
Recommendation: If you're comfortable with the installation process and have the necessary tools, purchasing the Denso 31711AG850 TCM and installing it yourself could save you money and potentially improve your vehicle's performance. Alternatively, consider taking your vehicle to a professional mechanic to assess the issue and determine the most cost-effective solution.
Details:
Carefully packed to prevent damage. Shipping delivery. USA postal inspection service. The unit is original, fully tested prior to removal, and in good working condition.
Condition: used tested fully functional. Secure and protective packaging. Please review all images carefully before purchasing. This listing is for a used oem automatic transmission control module removed from compatible Subaru donor vehicle.
Manufacturer part number: 31711AG850. Part code: 31711. Part type: automatic transmission control module at unit. Brand: genuine Subaru.
Photos are part of the. Manufactured by Denso made in japan. Packaging protection.
Used fully tested and working properly. Compatible vehicles. Ideal replacement for faulty transmission control module. Ships exactly as shown.
No physical damage. Manufacturer: Denso made in japan. Product highlights. Physical condition: no cracks or physical damage.
Minor cosmetic wear from normal use. voltage : 12v. Cosmetic condition: may show minor marks from normal use. Tested before removal.
Genuine oem Subaru part. 2005 Subaru Legacy Outback transmission control module tcm 31711AG850 Denso oem tested.
specifications perfoelectric:
- for models: Outback, Legacy
- for makes: Subaru
- for years: 2005
- brand: Denso
- mpn: 31711ag850
- part type: Control Transmission Module
- genuine oem: Yes
- placement on vehicle: Left
- country of origin: United States
payments perfoelectric:
- wallet: paypal
- credit card: visa
- other
general perfoelectric:
- category: Auto Parts > Electrical Components
returns perfoelectric:
- time: 30 days
- policy: returns accepted
- paid by: buyer
seller perfoelectric:
- city: orlando, florida
- # reviews: 256
- rating: 99.2%
offer perfoelectric:
- sold #: 12
- started: february 14, 2026
- availability: in stock
- in stock #: 5
- options: ship-to-home
- prices: $40.00–$215.65
- item condition: Used
shipping perfoelectric:
- class: standard
- transit: 5-10 days
- service: usps ground advantage
- type: calculated
- carrier: usps
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