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Toyota Avalon Engine Air Filter Replacement Guide
How to change the engine air filter in a 4th generation 2013-2017 Toyota Avalon with the 2GR-FE 3.5L V6 motor.

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2016 Avalon Engine Air Box
Metal Latch - Front Edge
Flip Down Fastener
This automotive maintenance tutorial was specifically written to assist owners of the fourth generation (2013, 2014, 2015, 2016, 2017 and perhaps also the revised 2018 model year) Toyota Avalon sedan in cleaning or changing the engine air filter element for the 2GR-FE 3.5 liter V6 motor.

Owners of other Toyota, Lexus and Scion vehicles such as the Yaris, Corolla, Matrix, Prius, Camry, RAV4, Sienna, Tacoma, Tundra, FJ Cruiser, Venza, Highlander, 4Runner, Sequoia, Land Cruiser, IS 250, IS 200t, IS 300, NX 200t, NX 300h, RX 350, RX 450h, LS 460, LS 600h, ES 350, ES 300h Hybrid, RC F, GS 350, CT 200h, LX 570, GX 460, tC, iA, iM, xB, xD, iQ and FR-S may also find these DIY instructions to be helpful.

A few compatible replacement engine air filters with their part numbers are as follows: Toyota 17801-0P051, K&N 33-2443, PT Auto AF10755, Wix 49430, Purolator A36116, MAHLE LX 3230 and Ecogard XA6116.

No tools are needed to access and replace the engine air filter.

Pull Off Rear Metal Latch
2nd Fastener Released
Lift Off Air Box Cover
The first two steps are to open the hood and then move to the right (driver) side of the engine bay.

The engine air filter box is located just behind the 12V automotive battery and to the left of the fuse box.

There are two metal latches on the right side of the air box.

Flip the front metal latch off the top half of the air box.

Then flip down the 2nd metal latch located at the right rear corner of the air box.

Lift off the top half of the air box to access the old filter.

Remove Old Air Filter
Denso # 17801-0P051
Old Air Filter Removed
Pull the old air filter out of the bottom half of the air box.

Inspect both sides of the old air filter.

If the old filter is dark grey or black and clogged with dirt, dust, pollen, soot, hair, leaves, insects, twigs, sand and other debris, it should be replaced with a new element.

I recommend buying the genuine OEM Toyota 17801-0P051 engine air filter element since it has excellent reviews on Amazon.


Inspect Both Sides
Clean With Vacuum
Clean Out Engine Air Box
If the old air filter is relatively clean, just tap out the large debris and remove any fine dust with a vacuum cleaner.

If your vacuum cleaner has a crevice attachment, clean out any sand or debris in the bottom half of the air box.

Install New Air Filter
Line Up Pegs & Slots
Tabs & Slots - Left Side
Lower the near air filter in to the bottom half of the air box with the pleats facing down and the rubber gasket facing up towards you.

Line up the two tabs or "pegs" on the left side of the air box cover with the two slots on the bottom half of the air box.

Flip Up Metal Latch
Secure 2nd Fastener
Engine Air Filter Replaced
Slide the tabs in to the slots and lower the top half of the air box down in to place.

Swing up the two metal latches on the left side of the air box.

Snap the two metal latches back in to place to secure the top half of the air box.

Be sure to record the engine air filter change in your car's service records.

For more, check out all of my Toyota Avalon DIY Repair & Maintenance Guides.

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