Buy 2016 Toyota SIENNA L Mini Passenger Van Power Brake Booster Check Valve. 2.7 liter, #2. 3.5 LITER WBOOSTER, Stiff, BrPower - OEM Toyota Part # 4473060070 (44730-60070)

Valve. Check. Booster. Assembly, Vacuum C. Power Brake.
Power Brake Booster Check Valve. Included with: Booster, Booster Assembly, Booster Assembly Part cannot be reused/reinstalled, Power Booster.

Fits 4RUNNER, AVALON, CAMRY, HIGHLANDER, SEQUOIA, SIENNA, TUNDRA, XD, YARIS

2.7 liter, #2. 3.5 LITER. 4Runner. Avalon. Camry. CREW MAX. DOUBLE CAB. Highlander; 3.5L; From 2/12. Highlander; 3.5L; w/o Hybrid. Japan built. RX350. RX350; Japan Part. RX350L. Sequoia. Sienna; 2.7L; Right. Sienna; 3.5L. Tundra. W/BOOSTER. W/O HYBRID. XD. Yaris.
Brake Power Booster Unit Check Valve - Repair or Replace
If your brake pedal is excessively stiff or your pedal doesn't return as it should, your 2016 TOYOTA SIENNA may need to have its brake booster check valve replaced. Contact our knowledgeable TOYOTA technicians for support.