On the XV50 Camry this is a straightforward automatic-tensioner belt job, but on the 2.5 L four-cylinder the tensioner and crank pulley sit low behind the right front wheel, so the real work is pulling the wheel and the plastic fender liner to get a breaker bar on the tensioner bolt. Once you can reach it, the belt is off in two minutes. The V6 gives you a bit more room from above but the same basic procedure applies.
Two things trip people up. First, the Camry Hybrid has no accessory belt at all, so if you own a hybrid there is nothing to replace. Second, people reinstall the belt one rib off on the crank or A/C pulley because the space is tight and they never look with a mirror. Check every pulley before you start the engine, and while the belt is off, spin the idler and tensioner pulleys by hand, as worn tensioner bearings are the usual source of a chirp that a new belt won't cure.
| Item | Type | |
|---|---|---|
| Wheel chocks Keeps the car from rolling while the front is lifted. | Safety | shop |
| Floor jack 2 ton minimum Lifts the right front corner for wheel and liner removal. | Required | shop |
| Jack stands 2 ton pair Supports the car at the pinch weld while you work under the fender. | Safety | shop |
| Lug nut socket 21 mm, 1/2 in drive, thin wall Removes the right front wheel for access. | Required | shop |
| Breaker bar or lug wrench 1/2 in drive Loosens lug nuts before lifting. | Required | shop |
| Socket set 10 mm and 12 mm, 3/8 in drive with ratchet Removes fender liner bolts, splash shield screws and engine cover. | Required | shop |
| Phillips screwdriver #2, medium length Fender liner and splash shield use Phillips-head screws and push clips. | Required | shop |
| Trim clip / panel removal tool Plastic pry set Pops the fender liner push pins without breaking them. | Recommended | shop |
| Tensioner socket 14 mm 6-point, 3/8 in drive (check 15 mm on 2GR-FE) Fits the automatic tensioner pulley bolt to swing the arm and relieve belt tension. | Required | shop |
| Long breaker bar 3/8 in drive, 18-24 in Gives the leverage needed to hold the spring tensioner back with one hand. | Required | shop |
| Serpentine belt tool kit 3/8 in drive, with crowfoot and offset adapters Reaches the tensioner in the tight space between the engine and frame rail if a plain bar won't fit. | Recommended | shop |
| Universal swivel / wobble extension 3/8 in drive, 3 in and 6 in Angles the socket onto the tensioner bolt from the wheel well. | Recommended | shop |
| Inspection mirror and flashlight LED Confirms the belt is seated in every rib groove before starting the engine. | Recommended | shop |
| Torque wrench 1/2 in drive, 20-150 ft-lb Torques the wheel lug nuts to spec. | Required | shop |
| Serpentine belt Correct belt for engine: 6-rib on 2AR-FE, 7-rib on 2GR-FE The replacement belt; match rib count and length to your engine. | Parts | shop |
| Belt dressing-free rag and brake cleaner Cleans oil or coolant residue off pulleys; never use belt dressing on a ribbed belt. | Consumables | shop |
| Mechanic's gloves Protects fingers when the tensioner snaps back. | Safety | shop |
2.5 L 2AR-FE: automatic tensioner pulley bolt takes a 14 mm socket and the belt is a 6-rib; access is easiest through the right wheel well after removing the wheel and fender liner. 3.5 L 2GR-FE: same style spring tensioner but on a 7-rib belt, and the pulley bolt may be 15 mm, so bring both sockets. Hybrid 2AR-FXE: no serpentine belt, no tools required.
| Front wheel lug nuts | 76 ft-lb (103 Nm) |
| Fender liner / splash shield bolts | Snug only, roughly 5-7 ft-lb (7-9 Nm) |
| Tensioner pulley center bolt (if removed) | verify in the service manual |
| Tensioner assembly mounting bolts (if removed) | verify in the service manual |
The 14 mm tensioner pulley bolt on the 2AR-FE and the 21 mm lug nuts and 76 ft-lb lug torque are solid for this generation; double-check whether your 2GR-FE tensioner takes 14 or 15 mm and confirm the routing against your own underhood diagram.
No. The 2AR-FXE hybrid uses an electric water pump, electric A/C compressor and the motor-generators for charging, so there is no accessory drive belt to inspect or replace.
A 14 mm 6-point socket on the tensioner pulley bolt for the 2.5 L 2AR-FE; the 3.5 L V6 may use 15 mm. Use a long 3/8 in breaker bar for leverage since the spring is stiff.
On the 2.5 L it is by far the easiest way. Pulling the right front wheel and the plastic fender liner gives you a straight shot at the tensioner and crank pulley. Some people manage it from above with a belt tool kit, but it is slow and knuckle-busting.
Toyota calls for inspection around 60,000 miles; most owners replace it between 60,000 and 100,000 miles or whenever it shows cracks across three or more ribs in a one-inch span, glazing, or missing chunks.