Toyota Lexus

30500-48600 Toyota Highlander UA80F Transmission

30500-48600 Toyota Highlander UA80F Transmission

OE NO.:30500-48600
Model Number: UA80F
Transmission Speeds: 8
Gearbox Type: Automatic
Product description: Application: Toyota AWD Sedans, Crossovers & Minivans: Highlander: 3.5L V6 2GR-FKS AWD (2017 - 2022) RAV4: 3.5L V6 2GR-FE / 2GR-FKS AWD (2017 - 2018) Camry: 3.5L V6 2GR-FKS AWD (2018 - 2024)
INQUIRY

Model Number	UA80F
MOQ	1 Pcs
Condition	Remanufactured
Warranty	6 Months

The automatic transmission assembly with reference number 30500-48600 is designed for the Aisin UA80F 8-speed automatic transmission. As the All-Wheel Drive (AWD) counterpart to the UA80E, this advanced transverse unit features an integrated rear Power Take-Off (PTO) and is specifically calibrated to handle the high output of the 3.5L V6 (2GR-FKS) engine, delivering exceptionally smooth shifts, wide gear ratio spread, and outstanding all-weather traction for the Toyota Highlander, RAV4, Camry, and Avalon.

Quick Specifications:

Part Number: 30500-48600 (Toyota OEM format)
Transmission Model: UA80F (8-Speed Automatic AWD)
Also Known As: Aisin AWF8F45 (AWD Variant)
Type: Transverse All-Wheel Drive (AWD)
Engine Compatibility: 3.5L V6 (2GR-FKS) with D-4S Dual Injection
Max Input Torque: ~350-400 Nm
Gear Ratio Spread: 7.59:1
Fluid Type: Toyota ATF WS (World Standard)
Fluid Capacity: ~7.5 - 8.5 Liters (dry fill, slightly higher than FWD due to PTO)

Applications:

Toyota Highlander (XU50 / XU70, 2016-present, 3.5L V6 AWD variants)
Toyota RAV4 (XA50, select global markets with 3.5L V6 AWD variants)
Toyota Camry (XV70, select AWD variants sharing the UA80 platform)
Toyota Avalon (XX50, select AWD variants)
Toyota Sienna (XL30 / XL40, 3.5L V6 AWD variants sharing the UA80F architecture)
Lexus RX350 / ES350 (Select AWD variants utilizing the 2GR-FKS and 8-speed AWD platform)

Complete Assembly Includes:

✅ Lightweight aluminum transmission case with compact 8-speed geartrain
✅ Integrated AWD Power Take-Off (PTO) / transfer case interface for rear driveshaft
✅ High-efficiency torque converter with wide-range multi-plate Flex Lock-up clutch
✅ Valve body with precision linear solenoids and advanced pressure control
✅ Integrated Transmission Control Module (TCM) or ECU control interface
✅ Multi-plate clutch packs, brake elements, and high-volume oil pump
✅ Input/Output speed sensors, range selector, and sealing gaskets

Note: Transmission mounts, shift cables, rear driveshaft, and external cooler lines may need to be transferred from the original unit.

Key Features:

✅ AWD Capability: The integrated rear PTO seamlessly distributes torque to the rear wheels via the rear driveshaft, providing enhanced traction in snow, rain, and light off-road conditions.
✅ Wide 7.59:1 Ratio Spread: Lower 1st gear for stronger V6 acceleration and a taller 8th gear for highly relaxed, low-RPM highway cruising and improved fuel economy.
✅ V6 Optimization: Specifically reinforced and calibrated to handle the 295+ HP and high torque output of the 2GR-FKS 3.5L V6 engine without clutch slippage.
✅ Expanded Flex Lock-Up: The torque converter lock-up clutch engages from 2nd gear onward in most conditions, minimizing slippage and providing a direct, responsive driving feel.
✅ High-Speed Shift Response: Reduced shift times and optimized hydraulic control ensure near-instantaneous gear changes during aggressive V6 acceleration.

Technical Notes:

Critical Installation Requirements:

Fluid Specification: Must use Toyota ATF WS (World Standard) exclusively. Using incorrect fluid will compromise the Flex Lock-up clutch friction characteristics and cause severe shudder or AWD binding.
Fluid Level Check: Must be performed with the transmission at operating temperature (typically 70°C–80°C) and the engine idling, using the overflow check plug on the transmission pan.
Transfer Case / PTO Alignment: When mating the rear driveshaft to the PTO, ensure the output splines are properly aligned and lubricated with assembly grease to prevent binding or stripping.
ECU/TCM Reset: After installation, the ECU memory reset and shift adaptation learning must be performed using Toyota Techstream or equivalent diagnostic tools to ensure proper line pressure, shift timing, and AWD torque distribution.
Cooler Flushing: The transmission cooler (integrated into the radiator) and external lines must be thoroughly flushed to remove metallic debris and clutch material from the failed unit.

Common Issues & Maintenance:

Adaptive Learning Period: The UA80F relies heavily on adaptive shift logic. Rough or delayed shifts immediately after installation usually resolve after a complete TCM reset and a 50-100 km drive cycle relearning procedure.
PTO / Transfer Case Wear: Ensure the shared ATF is kept clean to prevent bearing and gear wear in the AWD PTO unit. Listen for whining noises from the rear output, which can indicate low fluid or bearing wear.
Valve Body Sensitivity: The precision linear solenoids are highly sensitive to fluid contamination. Regular fluid changes prevent abrasive debris from causing sticky solenoids or harsh shifts.
Fluid Service Intervals: A drain and fill every 60,000–80,000 km is strongly recommended to maintain shift quality, protect the Flex Lock-up clutch, and extend the lifespan of the UA80F and its AWD components.