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Does the Lexus RX 450h have a timing belt or chain?

The Lexus RX 450h, a hybrid luxury SUV, uses a timing chain rather than a timing belt. Timing chains are generally more durable and longer-lasting than timing belts, making them a preferred choice for many modern engines, including the one found in the RX 450h.


Timing Belt vs. Timing Chain


The primary difference between a timing belt and a timing chain is the material they are made of and how they function. A timing belt is a toothed rubber belt that connects the crankshaft to the camshaft, ensuring the proper timing of the engine's valves opening and closing. In contrast, a timing chain is a metal chain that serves the same purpose, but is generally more durable and longer-lasting than a belt.,p>

Timing chains are typically found in higher-end, more expensive vehicles, as they require more complex and costly engineering to implement. However, the increased durability and reliability of a timing chain often justifies the additional cost for manufacturers and consumers.


The Lexus RX 450h's Timing System


The Lexus RX 450h, being a hybrid vehicle, utilizes a sophisticated powertrain that includes a 3.5-liter V6 engine. This engine is equipped with a timing chain rather than a timing belt.,


The use of a timing chain in the RX 450h's engine provides several benefits, including:



  • Increased reliability and longevity, as timing chains are less prone to wear and tear compared to timing belts

  • Reduced maintenance costs, as timing chains typically do not need to be replaced as frequently as timing belts

  • Improved engine performance and efficiency, as the timing chain's durability helps maintain precise valve timing throughout the engine's lifespan


Overall, the Lexus RX 450h's use of a timing chain in its hybrid powertrain is a testament to the brand's commitment to engineering high-quality, reliable, and long-lasting vehicles.

What are the common faults on a Lexus RX 450h?


Suspension problems are also common in the Lexus RX450h, particularly in models that have high mileage. Some owners have reported leaks in the air suspension system, while others have reported that the compressor wears out quickly and needs to be replaced.



Does a Lexus RX 450h have a timing belt?


Although the RX450h engine does have a timing chain and in general timing chains do wear, there are no records that we can find that state the chain needs replacing as a maintenance item.



Which Lexus cars have timing chains?


Lexus: The RX, ES, and GS models from Lexus typically use timing chains, aligning with Lexus's reputation for reliability and low maintenance costs.



What year did Lexus use timing chains?


From 2005 and Up have a Timing Chain.



Do Lexus timing chains need to be replaced?


The timing chain in this engine should last the life of the engine, so you do not have to replace it at any interval.



How do I know if I have a timing belt or chain?


You can open the bonnet of your car and inspect the engine to find out which your car has. Check to see if there is a plastic cover on the right or left side of your engine, as this will indicate that your car uses a timing belt. If no plastic is visible on the side, then your car uses a timing chain.



Is Lexus RX 450h expensive to maintain?


Maintaining a Lexus RX 450h will cost $517 per year on average through the first 5 years of new ownership. Costs and probability of repair increase over time.



What is the best year to buy a Lexus 450h?


The 2022 Lexus RX 450h is our top pick for the best model year value for the RX 450h. With the 2022, you would only pay, on average, 71% of the price as new, with 83% of the vehicle's useful life remaining.



Does the Lexus RX have a timing belt or chain?


With the release of the Gen III models, both the RX350 and RX450h have the new low friction engines that include an internal timing chain. No maintenance is needed on it.



How long does a Lexus 450h hybrid battery last?


Under normal conditions, you can expect Lexus hybrid car batteries to last up to 150,000 miles or 15 years and sometimes even longer.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.