Tools you need for alternator on a 2013-2018 Toyota RAV4

Every US-market XA40 RAV4 from 2013-2018 uses the 2.5L 2AR-FE four-cylinder, so there is only one layout to deal with. The alternator lives high on the front-right of the block behind the serpentine belt, and almost all of the work happens from the top of the engine bay. The hardware is simple - two 14 mm bolts, a 10 mm B-terminal nut, and one plug - but the space between the alternator, the upper radiator hose and the coolant reservoir is tight, so a 14 mm swivel socket and a long extension matter more than muscle.

The mistakes people make are electrical, not mechanical: leaving the battery connected and arcing a wrench off the B-terminal stud, or cranking that same nut down with a ratchet and snapping the stud on a brand new unit. The second most common issue is a belt that looks seated but has one rib riding off the edge of the tensioner or A/C pulley - check every groove by eye before you start it. Toyota does not require any battery registration or scan tool coding for this job.

Complete tool and parts list

Differences within the 2013-2018 generation

Every 2013-2018 RAV4 in North America has the 2.5L 2AR-FE, so sizes are the same across the generation; only the alternator output differs (roughly 100 A on base trims, 130 A on higher trims and with heavier electrical loads). The 2016-2018 RAV4 Hybrid has no conventional alternator - it charges through the hybrid transaxle's motor-generator, and this procedure does not apply. Overseas 2.0L and 2.2 D-4D versions use a different bracket and belt layout.

Torque specs

How the job goes

1. Park on level ground, set the parking brake, and open the hood. Loosen the 10 mm nut and remove the negative battery cable; tuck it aside so it cannot spring back onto the post.
2. Raise the front of the vehicle and support it on jack stands. If you want more room, remove the right front wheel (21 mm lugs).
3. Remove the plastic engine undercover (10 mm bolts and Phillips/clip fasteners) and, if fitted, the right inner fender splash shield clips.
4. From above, note the belt routing or photograph it. Fit the 14 mm serpentine tool or breaker bar on the tensioner pulley bolt, rotate the tensioner to release tension, and slip the belt off the alternator pulley. Let the tensioner return slowly.
5. Remove the engine cover / air intake resonator if it blocks your reach, and move the coolant reservoir or upper radiator hose bracket aside as needed for clearance.
6. Pull back the rubber boot on the alternator B terminal, remove the 10 mm nut, and lift the heavy battery cable off the stud. Press the lock tab and unplug the alternator connector.
7. Remove the two 14 mm alternator mounting bolts (one upper/pivot, one lower through the bracket). Note that the bolts may be different lengths - keep them in order.
8. Work the alternator off its locating dowel with a gentle pry or a rubber mallet tap, then lift it straight up and out of the engine bay. On some builds it is easier to drop it down past the subframe.
9. Compare the new alternator to the old one: pulley diameter, connector type, amperage rating, and stud size. Transfer the B-terminal boot if the new unit did not include one.
10. Set the new alternator into the bracket, start both 14 mm bolts by hand to avoid crossing threads in the aluminum, then torque to 39 ft-lb (53 Nm).
11. Reconnect the plug until it clicks. Put a thin film of dielectric grease on the B-terminal stud, fit the cable, and torque the nut to about 7 ft-lb (9.8 Nm). Reseat the boot fully.
12. Route the belt per your photo, leaving the alternator pulley last. Release the tensioner, seat the belt, and verify every rib is centered in every pulley groove.
13. Reinstall the hose brackets, reservoir, intake parts, splash shield and undercover. Reinstall the wheel and torque lugs to 76 ft-lb (103 Nm) in a star pattern.
14. Reconnect the negative battery cable. Start the engine, let it idle, and check for belt squeal or wobble.
15. With the engine warm and running, measure battery voltage: it should read roughly 13.8-14.5 V. Confirm the charge warning light is out and that no codes were set.
16. Relearn the power window auto-up and, if equipped, reset the clock and radio presets after the battery disconnect.

Watch out

The 10 mm / 14 mm socket sizes, 14 mm tensioner, and 39 ft-lb mounting bolt torque are correct for the 2AR-FE in this generation, but confirm bolt lengths and the tensioner assembly torque against a service manual for your exact build, and verify your alternator's amperage rating before ordering.

Other jobs on the 2013-2018 Toyota RAV4

Alternator Replacement on other vehicles