Serpentine Belt Routing on the 2006 Camry
I replace these belts every time I'm already underneath the car for something else. The 2006 Camry came with two different engines — the 2.4-liter four-cylinder and the 3.3-liter V6 — and they use completely different belt paths. If you grab the wrong diagram, you're going to end up frustrated and wondering why the belt keeps falling off. Let me walk you through both. The 2006 Toyota Camry Belt Diagram for the 4-cylinder model is relatively straightforward. The belt runs from the crankshaft pulley at the bottom, up to the power steering pump on the left side, across to the alternator above that, then down to the A/C compressor on the right, and back to the tensioner at the bottom left. There's also a segment that goes around the water pump, which sits behind the main belt loop. You'll route the belt with the ribs facing inward toward all the pulleys — obvious, yes, but I've seen people try to mount it backwards because they were working by headlamp light in a garage at 11 PM.
Where to Find the 2006 Toyota Camry Belt Diagram
Under the hood, near the radiator support on the passenger side, there's usually a black sticker with the routing printed on it. On my '06 Camry LE, it was faded to the point of being unreadable — just a vague outline you could barely trace with your finger. That's why most people go looking online. The diagram itself is straightforward enough that any decent automotive site has it, and Toyota's own service documentation includes it. I usually just pull up a image on my phone while I'm working rather than printing something out and risking it getting greasy. Here's the part that trips people up: the belt routing sticker on your specific car might not match the stock diagram if the vehicle ever had the A/C compressor removed or replaced with an aftermarket unit. I had a customer whose Camry had the original compressor gone — it was deleted years ago — and when they bought a used belt from the parts counter, it was the wrong length and wouldn't even reach all the pulleys. The belt part number for the 4-cylinder is 9475-8075-50 or the equivalent 2708-8075. Double-check that your belt matches the engine code on your VIN plate before you buy anything. The V6 routing is a different story. The 3MZ-FE engine has the belt going around the crank, the water pump, the alternator, the power steering pump, the A/C compressor, and the idler/tensioner assembly. It wraps around more pulleys and the path is less intuitive because the tensioner sits in a tighter space. When I replace the belt on a V6, I remove the old one first and photograph the routing before I touch anything. You'd be surprised how many of these go back together wrong on the first try because the belt twists around a pulley in a way that isn't immediately obvious from staring at a diagram.
One thing that isn't obvious from any diagram: the tensioner on both engines releases pressure when you slide a 14mm socket or ratchet into the tensioner arm and pull it toward the engine block — clockwise on the 4-cylinder, counter-clockwise on the V6. Once the tension is released, the belt goes slack and you can slip it off. Reinstalling the new belt works the same way in reverse, but you have to hold the tensioner in place with one hand while routing the belt with the other. That's awkward. I use a magnetic tray to hold the socket in place on the tensioner so I'm not juggling tools. Another detail that matters more than people realize: after you route the belt, don't just walk away. Start the engine and watch the belt for about 30 seconds. I've caught two misrouted belts this way — one where the belt was sitting flush on a pulley but wasn't actually seated in the groove, and another where the belt looked fine but was twisted about 90 degrees along its length. Both would have destroyed the belt within minutes and potentially damaged the tensioner bearings. A quick visual check under idle conditions takes three seconds and prevents a tow truck call. The biggest limitation of relying on an online belt diagram is that it doesn't tell you which accessories your specific trim level actually has. A base model Camry LE with the 4-cylinder might not have the A/C compressor pulley at all if it was optioned without air conditioning, which changes the routing entirely. Always verify your actual hardware against the diagram, not the other way around. If a pulley isn't physically there, the diagram is wrong for your car.
Get the Full Details
Belt replacement interval for the 2006 Camry is roughly 60,000 to 90,000 miles depending on driving conditions, but the real indicator is noise. A squealing sound on startup that goes away after a few seconds usually means the belt is glazed or the tensioner is weakening. If it squeals while driving, that's more likely a slipping belt or a failing tensioner pulley. I replace the belt and inspect the tensioner at the same time — the tensioner is a wear item too, and putting a new belt on a worn tensioner is just borrowing trouble. Cost for a Gates or Mitsuboshi replacement belt runs about $15 to $30. The tensioner assembly itself, if you need it, is anywhere from $60 to $120 depending on whether you go OEM or aftermarket. Labor is about 45 minutes to an hour for someone who does this regularly. I do it on a lift with everything accessible. If you're working underneath the car with jack stands, factor in another 15 to 20 minutes just getting to the bolts.
