
Prado's engine number is located on the front cylinder block of the engine under the hood. Here are some precautions for using a car engine: 1. Avoid driving in neutral: The engine itself has a fuel cut-off function during deceleration, and driving in neutral is not conducive to fuel economy. 2. Oil leakage: Pay attention to observation during normal vehicle use. If oil is found on the ground, determine whether there is engine oil leakage and communicate with the car 4S store in time to eliminate potential safety hazards. 3. Do not turn off the engine immediately after climbing a hill with a turbocharger: For cars equipped with turbochargers, do not turn off the engine immediately after high-speed driving or climbing a hill. Let the engine idle for 10 minutes before turning it off. Cars with turbochargers form carbon deposits several times faster than naturally aspirated cars.

I remember when I helped my relative transfer the ownership of their Prado last time, it took a lot of effort to find the engine number. After opening the engine hood, you need to look down at the connection between the engine and the transmission, specifically on the flat surface of the cylinder block near the firewall side. If it's covered in oil sludge, it's completely unreadable—you have to spray it with carburetor cleaner and wipe it clean with a cloth to see the stamped serial number. It's best to bring a strong flashlight to illuminate it, otherwise the characters are unrecognizable in the shadows. For newer Prado models, there might be an aluminum plate under the plastic cover on the front side of the engine, but the DMV usually only recognizes the hand-stamped number on the cylinder block. If you really can't find it, I suggest going directly to a repair shop and using a lift to check the chassis position—it's much easier than crawling around the engine compartment.

Our repair shop deals with the issue of Prado engine numbers every day, which are mostly located near the firewall at the rear of the cylinder block. To find it, you need to remove the engine upper cover and push aside the wiring harness near the intake manifold. For the older LC120 model, the number is located above the exhaust pipe side, while the newer LC150 model has it moved to the right flat surface of the cylinder block. Remember three points when looking for the number: the engraving is very shallow and easy to overlook, so it's best to use a flashlight at an angle; when making a rubbing, avoid using ink as it may smudge—using a pencil on rubbing paper gives a clearer result; for used cars suspected of having altered chassis, check for signs of grinding on the steel plate. Actually, the newer models now have duplicate number stickers on the passenger side sill and spare tire rack, but the legal validity still relies on the engine's original number.

When inspecting the engine number of a Prado, focus on the rear end of the engine block near the transmission. Specifically, stand facing the front of the vehicle and look towards the back - there's a palm-sized flat area above the flywheel housing where the engine connects to the transmission. This spot is consistently surrounded by high-temperature components and quite concealed. Last time during vehicle intake, even the customer couldn't locate it - I had to use a borescope to capture it. Note there are slight variations across model years: pre-2006 Prados have it on the left rear of the block, while post-2012 models shifted about 5cm to the right. Severely blurred numbers should raise red flags about potential accident history. Experienced inspectors cross-check with the aluminum plate attached below the air filter box, which typically carries a duplicate engine number.

Last month, I just picked up the new Prado, and the DMV required an engine number rubbing for registration. The 4S store guy taught me to use my phone's flashlight mode, lean over the cooling fan position, and shine downward—sure enough, I spotted the stamped number on the backside of the black engine block, deeper inside than I expected. My fingers could barely reach it, but to get a rubbing, I had to prepare a long-handled mirror and rubbing paper for the task. I heard veteran owners often keep an extended rod with a rubbing roller tied to it, but I managed to succeed by using modeling clay for an impression. The biggest surprise was finding a metal plate with a duplicate number on the spare tire mount, but the DMV insisted on the original stamped rubbing. Now, during every service, I ask the mechanic to clean the oil stains around the number area to avoid another half-hour hassle next time.

The engine number of the Prado is cast on the rear surface of the cylinder block, a design intended to prevent tampering. Once during an off-road event, a fellow driver needed to locate the number for purposes after water entered the engine, but mud and sand had obscured the digits. Several of us spent ten minutes brushing the area with a toothbrush dipped in diesel fuel, finally revealing the number two finger-widths above the transmission interface. This high-temperature location makes it difficult to damage, but the position is quite tricky. Japanese off-road vehicles favor this design—the Land Cruiser has it in the same spot, while the Pajero places it on the side of the cylinder block. If additional underbody protection plates are installed, finding it becomes even harder. Experienced owners often request cleaning of the number area during maintenance. It's quite inconvenient that the manual doesn’t specify the exact location—it’s advisable to have the salesperson point it out and take a photo for reference when purchasing the vehicle for the first time.


