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Tools you need for serpentine belt on a 2020-2024 Toyota Corolla

Moderate · 45-75 minutes for a first-timer, 25 minutes once you know the routing · Updated 2026-09-14
Must-have tools
  1. 14 mm wrench or socket for tensioner
  2. Long breaker bar or serpentine belt tool
  3. 21 mm socket, 1/2 in drive (lug nuts)
  4. 10 mm socket, 3/8 in drive (splash shields)
  5. Floor jack and jack stand

On the E210 Corolla the accessory belt is short and only drives the alternator and A/C compressor — the water pump runs off the timing chain and the steering is electric, so a broken belt won't instantly overheat you. The catch is access: the belt and its automatic tensioner sit behind the right front wheel, so the wheel and the inner fender liner have to come off before you can even see it. Budget more time for plastic clips than for the belt itself.

The 1.8 2ZR-FAE and 2.0 M20A-FKS both use a spring-loaded automatic tensioner you release with a 14 mm wrench or a serpentine belt tool — no adjustment, no measuring deflection. The hybrid 2ZR-FXE normally has no accessory belt at all. The thing people get wrong is seating: the belt slips on feeling right but sits one rib off the crank pulley edge, where you can't see it, and shreds within a week. Check it with a mirror and a light before you put the wheel back on.

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Complete tool and parts list

ItemType
Floor jack
2 ton minimum, low profile
Lifts the right front corner to get the wheel off for belt access.
Requiredshop
Jack stand
2 ton, placed at pinch weld / subframe
Supports the car while you work in the wheel well.
Safetyshop
Wheel chocks
Rear wheels
Keeps the car from rolling while raised.
Safetyshop
Lug nut socket
21 mm, 1/2 in drive, thin wall
Removes the right front wheel; 21 mm on all E210 factory wheels.
Requiredshop
Breaker bar or 1/2 in ratchet
1/2 in drive, 18-24 in
Loosens lug nuts and can also swing the belt tensioner.
Requiredshop
Socket set with ratchet
3/8 in drive, 10 mm and 12 mm sockets
10 mm bolts hold the inner fender splash shield and lower engine undercover; a few 12 mm elsewhere.
Requiredshop
Phillips screwdriver
#2, long shaft
Several splash shield fasteners are Phillips-head screws into plastic collars.
Requiredshop
Trim clip / push pin removal tool
Plastic fastener remover set
Pops the plastic push-pin clips holding the wheel-well liner without breaking them.
Requiredshop
Combination wrench
14 mm
Fits the automatic tensioner pulley bolt head to rotate the tensioner and release belt tension.
Requiredshop
Serpentine belt tool set
Long handle with 13/14/15/16/17/18 mm crowfoot sockets and 3/8 in square drive
Gives leverage in the tight wheel-well space; the square-drive end fits tensioners without a bolt head.
Recommendedshop
3/8 in drive extension set
3 in, 6 in and 10 in
Reaches undercover and liner bolts from below and behind the liner.
Recommendedshop
Flashlight or work light
LED, magnetic or headlamp
The belt path behind the crank pulley is dark and you must verify routing.
Recommendedshop
Inspection mirror
Telescoping, small head
Lets you confirm the belt is seated in the crank pulley grooves you can't see.
Recommendedshop
Torque wrench
1/2 in drive, 25-150 ft-lb
Torques the wheel lug nuts to 76 ft-lb on reassembly.
Requiredshop
Serpentine accessory drive belt
OEM or equivalent; buy by VIN — 1.8 2ZR-FAE and 2.0 M20A-FKS use different lengths
The replacement belt; ribs and length differ by engine and A/C fitment.
Partsshop
Replacement plastic clips
Toyota fender liner push pins
Old liner clips often snap on removal.
Consumablesshop
Belt dressing — do NOT use
N/A
Listed only as a warning: never spray dressing on a ribbed belt; it causes slip and noise.
Consumablesshop
Nitrile gloves
Mechanic grade
Keeps grease and pinch injuries down in a tight space.
Safetyshop
Safety glasses
ANSI Z87
Road grit falls out of the wheel liner right into your face.
Safetyshop

Differences within the 2020-2024 generation

Tool sizes are the same for the 1.8 2ZR-FAE and 2.0 M20A-FKS — 21 mm lugs, 10 mm shield bolts, 14 mm tensioner — but the belts are different lengths, so order by VIN rather than by eye. Hybrid models with the 2ZR-FXE use an electric A/C compressor, electric water pump and electric steering and typically have no accessory drive belt to replace; confirm by looking behind the right front wheel.

Torque specs

Wheel lug nuts76 ft-lb (103 Nm)
Fender liner / splash shield 10 mm boltsabout 5-7 ft-lb (7-9 Nm) — snug only, plastic and sheet metal
Engine under cover boltsabout 5-7 ft-lb (7-9 Nm)
Belt tensioner assembly mounting bolt (only if replacing tensioner)verify in the service manual
Idler pulley bolt (only if replacing)verify in the service manual

How the job goes

  1. Park on level ground, chock the rear wheels, set the parking brake and loosen the right front lug nuts a quarter turn while the tire is still down.
  2. Raise the right front corner, support it on a jack stand and remove the wheel.
  3. Remove the lower engine under cover and the right front inner fender splash shield: 10 mm bolts, Phillips screws and plastic push-pin clips. Take your time with the clips.
  4. Before removing anything else, photograph the belt routing and sketch it. Routing on both gas engines is crank pulley to A/C compressor to alternator with the tensioner on the slack span, but verify on your car.
  5. Find the automatic tensioner. Put a 14 mm wrench or the serpentine belt tool on the tensioner pulley centre bolt and rotate the tensioner arm to release tension — normally clockwise on the E210, but feel which way the spring gives.
  6. Holding the tensioner released, slip the belt off the smoothest accessible pulley (usually the alternator), then let the tensioner return slowly.
  7. Work the old belt off the remaining pulleys and out of the wheel well. Inspect it for glazing, rib cracks and missing chunks, and compare its length and rib count with the new belt side by side.
  8. Spin each pulley by hand — alternator, A/C compressor, idler and tensioner. Any roughness, wobble or bearing noise means replace that pulley now, not after the new belt is on.
  9. Route the new belt onto all pulleys except the last easy one, keeping the ribs centred in every groove.
  10. Release the tensioner again and slide the belt onto the final pulley, then release the tensioner gently.
  11. Check with a light and mirror that the belt is fully seated and centred on every pulley, especially the crank pulley, with no rib hanging off an edge.
  12. Reinstall the splash shield and under cover, fit the wheel, lower the car and torque the lugs to 76 ft-lb (103 Nm) in a star pattern.
  13. Start the engine and listen for 30-60 seconds with the A/C on and off. A brief chirp that clears is normal seating; a steady squeal means misrouting or a bad pulley — shut it off and recheck.

Watch out

Lug nuts (21 mm, 76 ft-lb), the 10 mm/Phillips/push-pin splash shield hardware and the 14 mm automatic tensioner interface are consistent across E210 gas engines; verify tensioner rotation direction and exact belt part number against your VIN, and confirm your hybrid actually has a belt before ordering.

Frequently asked

Does the 2020-2024 Corolla Hybrid have a serpentine belt?

Generally no. The 2ZR-FXE hybrid powertrain uses an electric A/C compressor, electric water pump and electric power steering, and the engine is started by MG1, so there is no accessory drive belt. Look behind the right front wheel to confirm on your specific car before ordering parts.

How often should the Corolla accessory belt be replaced?

Toyota lists inspection rather than a fixed replacement mileage — typically inspected around 60,000 miles and every 15,000 miles after. Replace it when you see rib cracking, glazing, chunks missing or hear a persistent squeal; most last 90,000-120,000 miles.

Can I change the belt without taking the wheel off?

You can sometimes get to the tensioner from above or through the wheel opening with the wheel turned fully left, but it's awkward and you can't verify crank pulley seating. Pulling the wheel and the inner fender liner adds about 15 minutes and makes the job straightforward.

Which way does the tensioner rotate to release the belt?

On the E210 gas engines you put a 14 mm wrench on the tensioner pulley bolt and swing the arm to compress the spring — usually clockwise. Apply light pressure both ways first; the correct direction moves smoothly against spring resistance, the wrong one hits a hard stop.

Other jobs on the 2020-2024 Toyota Corolla

Oil ChangeFront Brake Pads and RotorsRear Brake Pads and RotorsBattery ReplacementSpark Plug ReplacementAlternator ReplacementStarter ReplacementCoolant FlushTire RotationHeadlight Bulb ReplacementWiper Blade ReplacementThermostat ReplacementFront Strut ReplacementCabin Air Filter ReplacementEngine Air Filter ReplacementTransmission Fluid ChangeFront Wheel Bearing ReplacementOxygen Sensor ReplacementWater Pump Replacement

Serpentine Belt Replacement on other vehicles

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