Automatic Transmission Assembly with Torque Converter for 2011-2016 Toyota
Product Notes Read before buying
This is a 6-speed automatic transmission (model U660F) for All-Wheel Drive (AWD) vehicles equipped with the 3.5L V6 engine only. It will not fit Front-Wheel Drive (FWD) models or vehicles with other engine sizes.
Voice or type your vehicle details and Wrenchy will confirm fitment in seconds.
Vehicle Fitment Guide
This part fits the following vehicles:
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| LE | SUV | 2014 - 2016 | V6 3.5L | AWD | Automatic |
| LE Plus | SUV | 2014 - 2016 | V6 3.5L | AWD | Automatic |
| Limited | SUV | 2014 - 2016 | V6 3.5L | AWD | Automatic |
| XLE | SUV | 2014 - 2016 | V6 3.5L | AWD | Automatic |
| 2015 |
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| LE | Mini Passenger Van | 2011 - 2016 | V6 3.5L | AWD | Automatic |
| LE | Mini Passenger Van | 2011 - 2015 | V6 3.5L | AWD | Automatic |
| Limited | Mini Passenger Van | 2011 | V6 3.5L | AWD | Automatic |
| Limited | Mini Passenger Van | 2011 - 2016 | V6 3.5L | AWD | Automatic |
| XLE | Mini Passenger Van | 2011 - 2015 | V6 3.5L | AWD | Automatic |
| XLE | Mini Passenger Van | 2011 - 2016 | V6 3.5L | AWD | Automatic |
| 2012 - 2014 |
Know This Transmission Before You Buy
The research behind our purchase interview — recalls, bulletins and real install economics for this transmission family:
A quick look at your own vehicle makes sure the right transmission shows up:
- Check the driver's door jamb label under the 'A/TM' section to ensure it reads 'U660F'.
- Verify the vehicle's VIN 5th digit is 'K' (for Highlander models, designating the 3.5L V6 engine paired with AWD).
- Confirm the engine is a 3.5L V6 (2GR-FE) and the vehicle is All-Wheel Drive (AWD).
What the install really takes — plan and budget with confidence:
Special tools this job needs:
- Engine support bar
- Subframe adapter or heavy-duty transmission jack
- Toyota Techstream diagnostic software or high-end bi-directional scan tool
- Digital angle gauge
Budget for these consumables at install:
- Toyota Genuine ATF WS (World Standard) fluid (approx. 7 to 10 quarts total)
- New transmission filter (media type) and pan gasket
- Front pump / torque converter seal
- Left and right CV axle seals
- Professional cooler-line flush solvent
What your vehicle’s computers will need after the swap:
What’s involved: Transaxle Compensation Code Registration & TCM Adaptive Relearn
Requires a dealer-level scan tool to input the unique 60-digit alphanumeric Transaxle Compensation Code (found on the QR label on top of the replacement transmission) into the vehicle's TCM. Once registered, the TCM memory must be reset, followed by a specific adaptive relearn drive cycle.
Pro tips for a smooth first start-up — hand them to whoever does the install:
- Torque Converter Seating: Must be fully seated (typically three distinct clicks/drops) before bolting to the engine to prevent cracking the oil pump gear.
- Subframe Alignment & Dowel Pins: Ensure engine-to-transmission alignment dowel pins are present in the engine block to prevent crooked seating.
- Fluid Level Check Procedure: No dipstick. Must perform a highly specific overflow level check with the vehicle level and engine idling.
- Transfer Case Re-marriage: Clean and grease transfer case input shaft splines with high-pressure grease before sliding onto the transmission output shaft.
- Take a Picture of the QR Code BEFORE Install: The 60-digit compensation code is printed on a label on top of the transmission case and is extremely difficult to read once installed.
Easy to get right once you know them:
- Forgetting to swap the lower oil cooler tube union (TSB T-TT-0288-14) from the old transmission case.
- Checking fluid level at normal operating temperature or with the engine off, leading to severe underfilling.
- Forgetting to reset the adaptive shift memory and program the 60-digit compensation code, causing harsh shifts and premature clutch pack failure.
- Ordering an AWD (U660F) transmission for a FWD vehicle (U660E) or vice versa.
Not issues with the units on this page — the manufacturer documented these for every transmission of this family, wherever you buy one. Handy for your installer:
🔎 Recommended at install: Mandates flushing the cooler lines, verifying alignment pins, and resetting the adaptive learned values.
🔎 Recommended at install: Warns that improper torque converter installation or failure to flush lines will cause immediate oil pump or internal transmission damage.
🔎 Recommended at install: Clarifies the highly specific temperature-based fluid level setting procedure using diagnostic software or jumper pins.
🔎 Recommended at install: Addresses wear in the solenoid modulator valve and bore, causing erratic shifts, solenoid codes, and erratic torque converter clutch (TCC) operation.
🔎 Recommended at install: Caused by wear in the B2 apply control valve and bore.
🔎 Recommended at install: Main housing bearing breaks its seat in the case, causing gear misalignment, metal shavings, and catastrophic internal failure.
🔎 Recommended at install: Wear in the lock-up control valve bore leads to TCC slip, shuddering under light acceleration, and eventual torque converter failure.
🔎 Recommended at install: Solenoid modulator valve bore wear causes erratic line pressure, leading to RPM spikes (flares) during shifts.
🔎 Recommended at install: Right-hand front drive shaft (axle) may have been manufactured incorrectly and could snap, leading to a loss of motive power.
Researched from factory recalls, TSBs and OEM service data (reference unit 400-62814-5598466). Unit-specific details — mileage, condition, warranty, freight — are covered in the checkout interview.
Policies, in plain English.
Shipping & Handling
- Ships by LTL freight on a pallet — a real freight truck, not a parcel van
- Your checkout freight quote covers delivery to your door (liftgate service included for residential addresses)
- The carrier calls ahead to schedule a delivery window — someone must be present to receive it
- Typically palletized and picked up within 2–3 business days; transit time depends on distance
120-Day Warranty
This part includes a 120-day warranty.
- If the part fails within the warranty window, we'll replace it or refund per the coverage terms
- Coverage is parts-only — installation labor is not included
- Warranty covers defects — not installation errors, misuse, or damage after installation
Your pre-purchase interview reviews these exact terms with you before anything is charged.
Returns (30 Days)
We accept returns of uninstalled parts within 30 days of delivery for this part.
- Defective parts: We will replace the part or issue a refund at our discretion
- Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
- Return shipping: This part ships by freight (LTL) — the part price is refundable per the terms above, but shipping costs are non-refundable and return freight follows the seller's return terms. Your pre-purchase interview walks through the exact numbers before you buy
- Parts must be returned in original packaging and unmodified condition
- Poorly packaged returns that arrive damaged will not be credited
Damaged in Shipping?
Freight damage is rare — and you're fully protected when you do two things at delivery:
- Inspect before you sign — you're allowed time to look the pallet over while the driver waits
- Write any damage on the delivery receipt before signing — that one line is what makes a freight claim succeed
- Severe damage? Refuse the delivery — it goes back at no cost to you and we make it right
- Photograph the pallet before unwrapping; report concealed damage within 24 hours of delivery
We handle the carrier claim — you just help document it. Your pre-purchase interview walks through this checklist too.
Order Cancellation
Cancel before shipment for a full refund. Once the pallet has been built, a preparation charge may apply — and once the freight carrier picks it up, shipping costs are non-refundable and standard return terms apply. Your pre-purchase interview shows the exact numbers before you pay.
Expert Guides
Related Trouble Codes (OBD-II)
5 matching guidesIf your scan tool is showing one of these trouble codes, this part is a common fix. Each guide explains the code, how to diagnose it, and exactly what to replace.
Miscellaneous Information
OEM Part Numbers:
Toyota: 30500-0E080, 30500-45030, 30500-45031, 30500-45032, 305000E080, 3050045031, 3050045032, 30510-45031-84, 30510-45032-84, 305104503284, 32000-07022, 3200007022, U660F
Fits Years: 2011 2012 2013 2014 2015 2016
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This unit ships with the selling yard's 120-day warranty. Longer plans can be requested during checkout.
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