TOYOTA 3050045080 Automatic Transmission 3.5L 5TH

( Manufacturer Part Number: 3050045080 ), ( Manufacturer Warranty: 6 Month ), ( Core Charge: 45.00 Which Is Included In The Total Price ), ( Genuine Oem: Yes ), ( Seller Notes: 3.5, Dash, 8at, Awd ), ( Interchange Item Code: 400 ), ( Color: Wht ), ( Reference Oe/oem: 3050045080, 3050045081, 3200048060 ), ( Type: Automatic Transmission Assembly ), ( Partout Id: A-129232410 )

Review TOYOTA Used Automatic Transmission Assembly At 3.5l Vin 5th fits SIENNA 2017

The **Toyota 3050045080 Automatic Transmission** is a high-performance, factory-direct transmission unit designed specifically for the **2017 Toyota Sienna 3.5L V6 model**, ensuring seamless integration with the vehicle s powertrain for optimal driving dynamics. This **U660E 5-speed automatic transmission** is engineered with Toyota s signature precision, delivering smooth shifts, enhanced fuel efficiency, and robust durability under the demands of daily commuting, road trips, or light towing applications. Built with a robust **aluminum housing** and reinforced internal components, including a **torque converter with a clutch pack system**, this transmission is engineered to handle the 3.5L V6 s **268 horsepower and 262 lb-ft of torque** with ease, ensuring reliable performance even in stop-and-go traffic or when carrying heavy loads. The **electronic shift control system** provides precise, responsive gear changes, while the **hydraulic valve body** regulates fluid pressure for consistent shifting performance. This transmission is compatible with **Toyota s Type T automatic transmission fluid (ATF)**, which is formulated to withstand high temperatures and reduce wear, extending the life of the unit. Whether used in a brand-new Sienna or as a high-quality replacement for a worn-out original, this transmission offers a perfect balance of reliability, efficiency, and Toyota s legendary build quality, making it an ideal choice for drivers seeking dependable performance in their minivan.

### **Pros and Cons of Buying a 2017 Toyota Sienna (3.5L V6, 5-Speed Automatic Transmission, VIN 3T3BF1F5XJX123456)**

#### **Pros**

1. **Reliability and Durability** Toyota is known for building long-lasting vehicles, and the 3.5L V6 engine in the Sienna is a robust powerplant with a reputation for endurance. The 5-speed automatic transmission (likely the U660E) is also well-regarded for smooth operation and longevity when properly maintained.

2. **Spacious and Practical Interior** The Sienna is a minivan designed for families, offering generous seating (up to 8 passengers in some trims), ample cargo space (up to 122.5 cubic feet behind the third row), and sliding doors for easy access. The sliding doors and high seating position also provide good visibility.

3. **Comfortable Ride** The Sienna is built on a unibody platform with a well-tuned suspension, making it comfortable for both city driving and highway cruising. The 3.5L V6 provides adequate power for towing (up to 3,500 lbs with the proper package) and highway passing.

- Pre-Collision System with Pedestrian Detection

- Lane Departure Alert

- Automatic High Beams

- Dynamic Radar Cruise Control

- The Sienna also earned a **Top Safety Pick** from the Insurance Institute for Highway Safety (IIHS) in 2017.

5. **Fuel Efficiency** The 3.5L V6 gets around **18 MPG city / 24 MPG highway**, which is decent for a minivan of its size. It s not as efficient as a hybrid, but it s reliable and doesn t require frequent refueling.

6. **Low Maintenance Costs** Toyotas are known for being cheaper to maintain than many competitors. Routine services (oil changes, brake jobs, etc.) are affordable, and parts are widely available.

7. **Resale Value** Toyotas hold their value well, so even a used Sienna will likely retain a strong resale price compared to similar vehicles.

8. **Comfortable for Long Trips** The spacious cabin, quiet interior, and smooth ride make the Sienna a good choice for road trips.

- 7-inch or 9-inch touchscreen infotainment

- Bluetooth connectivity

- USB ports

- Rear entertainment system (in higher trims)

- Available JBL audio system

10. **Good Warranty Coverage** If purchased from a dealer, the Sienna may still have some remaining **basic warranty** (3 years/36,000 miles) or **powertrain warranty** (5 years/60,000 miles), depending on mileage.

---

#### **Cons**

- **Transmission wear** The 5-speed automatic (U660E) is generally reliable, but high mileage could lead to rough shifting, delayed engagement, or fluid leaks.

- **Timing chain stretch** The 3.5L V6 uses a timing chain, which can stretch over time, leading to **ticking noises** and potential failure if not addressed.

- **Suspension wear** Bushings, struts, and control arms may need replacement as the vehicle ages.

- **Rear differential wear** If the Sienna is frequently towed, the rear differential may wear out prematurely.

- **Delayed engagement** when shifting from Park to Drive.

- **Rough shifting** under heavy load (e.g., towing).

- **Transmission fluid leaks** (common in older models if fluid hasn t been changed).

- **Check Engine Lights (CEL)** due to minor sensor issues (often fixable with a scan tool).

3. **Rust Concerns (Especially in Snowy Regions)** The Sienna s undercarriage and wheel wells can rust if the vehicle was driven in **salted or wet climates** for many years. A thorough inspection of the frame, subframe, and wheel bearings is recommended.

4. **Sliding Doors Can Be Annoying** While convenient, sliding doors can be **noisy** when opening/closing and may require frequent lubrication. Some owners report **sticking or misalignment** over time.

5. **Limited Performance** The 3.5L V6 is **not a high-performance engine** it s smooth but lacks excitement. If you want sporty handling, a minivan is not the best choice.

6. **Fuel Economy Not Great** At **18 MPG city / 24 MPG highway**, it s not the most efficient vehicle, especially if you do a lot of stop-and-go driving.

7. **Interior Quality Varies by Trim** Lower trims may have **cheaper plastics and less sound insulation**, making the cabin feel less premium compared to higher trims.

8. **Towing Limitations** While the Sienna can tow up to **3,500 lbs**, it s not as capable as a dedicated truck or SUV. The **towing package** (if installed) should be checked for wear (trailer brake controller, wiring, etc.).

9. **Resale Depreciation** Minivans generally depreciate faster than SUVs or sedans, so if you plan to sell later, the value drop may be noticeable.

10. **Potential Electrical Gremlins** Like many modern vehicles, the Sienna may have **minor electrical issues** (e.g., sensor failures, infotainment glitches), though these are usually fixable.

---

### **Key Considerations Before Buying**

- **Transmission fluid condition** (color, smell, level).

- **Timing chain tensioner and guides** (listen for ticking noises).

- **Suspension components** (struts, bushings, ball joints).

- **Rust** (especially in wheel wells and undercarriage).

- **Sliding door operation** (noise, smoothness).

- **Brake system** (pads, rotors, calipers).

- **Underhood for leaks** (oil, coolant, transmission fluid).

- **Transmission fluid changes** (should be done every **60,000 miles**).

- **Timing chain inspection** (if the vehicle has high mileage).

- **Brake and suspension maintenance**.

- **Transmission shifts** (smooth or jerky?).

- **Engine noises** (ticking, knocking, or unusual sounds).

- **Sliding door operation** (no grinding or resistance).

- **Braking performance** (soft or hard pedal?).

- **Ride comfort** (excessive bouncing or clunking?).

4. **Price Negotiation** Given the age and mileage, expect to pay **$15,000 $22,000** depending on condition. Compare with similar Toyotas (e.g., Honda Odyssey, Chrysler Pacifica) to ensure a fair deal.

- **2018 Toyota Sienna** (better tech, slight improvements).

- **Honda Odyssey** (slightly more refined interior).

- **Toyota Highlander Hybrid** (if you want an SUV with similar reliability).

---

### **Final Recommendation**

You need a **reliable, spacious minivan** for family transport.

The vehicle has **under 120,000 miles** and a **clean service history**.

You re willing to **budget for potential transmission or suspension repairs** in the future.

The **pre-purchase inspection confirms no major issues**.

You prioritize **low maintenance costs** and **long-term durability** over the latest tech.

The Sienna has **over 150,000 miles** with **no service records**.

There are **transmission symptoms** (rough shifts, leaks, delayed engagement).

The **timing chain is noisy** (could lead to expensive failure).

The **sliding doors are damaged or noisy**.

You find a **similar vehicle (Honda Odyssey, Chrysler Pacifica) at a better price with fewer issues**.

If the Sienna is **well-maintained, has low miles, and passes all inspections**, it can be an **excellent long-term family vehicle

Details:

Unless specified as Universal this is a direct fit Automatic Transmission Assembly. All parts are covered by warranty. Original parts mean a perfect fit. Parts go back into cars rather than landfill.

Every part is cleaned, tested and inspected by experts. This part fits vehicles made in the following years 2017 ,2018, 2019 ,2020.

part #: 3050045080 prices

• $3275.00-$3588.10

specifications autotransmissionsgo:

• for models: Sienna
• for makes: Toyota
• for years: 2017
• mpn: 3050045080
• manufacturer warranty: 6 Month
• core charge: 45.00 Which Is Included In The Total Price
• genuine oem: Yes
• seller notes: 3.5, Dash, 8at, Awd
• interchange item code: 400
• color: Wht
• reference oe/oem: 3050045080, 3050045081, 3200048060
• type: Automatic Transmission Assembly
• partout id: A-129232410

offer autotransmissionsgo:

• sold: 0
• best offers: True
• started: May 21, 2026
• options: Ship-to-home
• availability: In Stock
• quantity: 1

seller autotransmissionsgo:

• # reviews: 5823
• city: Corvallis, Oregon
• rating: 99.1%

payments autotransmissionsgo:

• wallet: Paypal
• credit card: Diners-club
• other

shipping autotransmissionsgo:

• cost: $249.99
• type: Fixed
• service: Flat Rate Freight
• class: Freight

returns autotransmissionsgo:

• paid by: Buyer
• policy: Returns Accepted
• time: 30 Days

general autotransmissionsgo:

• Car Truck Parts Accessories > Transmission Drivetrain > Automatic Transmission
• condition: Used

Toyota 3050045080 Is Similar To:

• 01 02 Toyota Corolla Automatic (28.6% similar) Replace oil pan gasket and rear main seal. This engine comes with a 90 day part only warranty. Engines are guaranteed against knocking and excessive smoking. Replace thermostat gasket. If needed replace timing gears, chains or belts gaskets. Pre-installation requirements: replace all seals. Install ...(September 2nd, 2017)
• 02a-u241e Toyota Solara Se Cyl Automatic Transmission Code Oem (46.4% similar) How SCLNK0 Lt...(July 20th, 2018)
• 03-55 Toyota Automatic Transmission (46.8% similar) Sold as is, feel free to ask any questions. Raisin-Warner automatic transmission Borg-Warner japan from a 1970 S well-maintained toyota 20R pickup that was wrecked by the nephew. Exact mileage unknown though no visible leaks or damage. Included is the flywheel that fits 20R and a console mounted ...(July 26th, 2018)
• 03-71le Toyota Oem Cressida Automatic Transmission At Auto (50.3% similar) Instrument gauge clusters speedometers all are considered an electrical item, must be installed by arse certified technician. If you are unsure of what purchasing please conduct your research. And will display common signs of use. Warranty for transmissions applies to the internals and casing only. ...(September 8th, 2018)
• Toyota Prius 04-09 Automatic AT CVT Transmission Assembly 123K Mi 2004 A350 (61.4% similar) A000 is an example of what the stock number looks like. Important note about compatibility: although believed to be accurate, it is there to show the range of years the part will fit. Stock number: most items have a stock number of a donor vehicle, it is usually at the end of the listing title and ...(April 5th, 2014)
• Toyota Fl Runner Transmission 04 04mt129747 05 Automatic 4 06 4.7l (40% similar) You are buying on an genuine toyota factory 2005 toyota 4 runner, or Lexus GX470 7 liter v8 engine with less than 50,000 original miles shown below. Part number 04MT129747. 7 liter v 8 automatic transmission that comes in excellent used low mileage condition. Needs nothing and is ready to install...(January 18th, 2015)
• 07 Toyota Solara Automatic Transmission (46.9% similar) If needed replace timing gears, chains or belts gaskets. Pre-installation requirements: drain and replace engine oils to manufacture suggested levels. This engine comes with a 30 day part only warranty. Install new spark plugs wires. Replace oil pan gasket and rear main seal. Align and engage torque...(September 13th, 2017)
• Automatic Fwd 06 100569 Sienna Toyota Transmission 05 04 (35.9% similar) If an item arrives damaged, please within 24 hrs for instructions. 3,AOD,CLEAN fluid,tested this part will fit these makes and model's with these options sienna. N new part manufactured from scratch...(February 1st, 2015)
• Automatic 101890 Transmission 95 Camry 96 94 Toyota (41.4% similar) Read carefully. Electrical parts computers, modules, switches, and sensors do not carry any warranty sold as is. 2,AT this part will fit these makes and model's with these options Camry. If necessary you can call us with your credit card information...(March 3rd, 2015)
• TOYOTA 4RUNNER 1997 4X2 V6 3.4L AUTOMATIC TRANSMISSION ONLY MILES 102788K (18.5% similar) Not included in sale: fluid drained out completely. Note: transmission is little messy in bell housing and lower due to rear main seal leaking on the engine, transmission fluid was drained for shipping purposes. Model: toyota 4RUNNER SR5 year: 1997 mileage: 102788 miles recommends: all external ...(April 2nd, 2014)
• 08 09 10 11 TOYOTA TACOMA AUTOMATIC TRANSMISSION 4X4 6 CYL 1028505 (18.1% similar) ; 4X4 6 Cl Tacoma 11. 0,4X4,85K STD as applicable, transmission computer may require reprogramming this part will fit these makes and model's with these options Tacoma 08-10. For more warranty information please please through...(April 25th, 2014)