What year did they stop putting timing belts in cars?
Automakers never universally stopped using timing belts, but a major industry shift toward timing chains began in earnest in the early 2000s and accelerated significantly after 2010. By the late 2010s, the majority of new gasoline engine designs in major markets like North America and Europe utilized timing chains, with belts primarily reserved for specific applications or cost-sensitive models.
The transition was driven by durability and total cost-of-ownership concerns. A timing belt, typically made of reinforced rubber, requires scheduled replacement—often between 60,000 and 100,000 miles—at a significant service cost. Failure to replace it can cause catastrophic engine damage. In contrast, a timing chain is a metal roller chain designed to last the engine's lifetime under normal conditions, eliminating a major maintenance item. Industry analysis from firms like IHS Markit indicates that for mainstream passenger vehicles, the penetration rate of timing chains in new engine designs exceeded 60% by 2015, a figure that continued to climb.
The shift wasn't instantaneous across all manufacturers. European brands like Volkswagen Group moved heavily to chains in the late 2000s and 2010s. For instance, the widespread EA888 engine family, launched in the 2000s, uses a timing chain. Japanese automakers were more varied; Toyota used belts extensively in engines like the 2AZ-FE well into the 2010s, while Honda transitioned many models like the Civic to chains in the early 2010s. American manufacturers, particularly GM and Ford, adopted chains broadly for their EcoBoost and other modular engine families from around 2010 onward.
A key reason belts persist is packaging and NVH (Noise, Vibration, Harshness). Timing belts are quieter and can allow for more compact engine designs. They are still commonly found in smaller displacement engines, some hybrid powertrains (where the engine runs intermittently), and certain diesel engines. However, the long-term maintenance advantage of chains has become a strong selling point for consumers seeking lower running costs.
The following table illustrates the general timeline and rationale for the industry's transition:
| Period | Dominant Technology Trend | Key Driver | Example Models/Engines |
|---|
| Pre-2000s | Timing belts common in mass-market cars. | Lower initial manufacturing cost, quieter operation. | Toyota Camry (4-cylinder engines), many Honda engines. |
| Early 2000s – 2010s | Gradual shift begins; chains become prevalent in new engine families. | Consumer demand for reduced maintenance, improved perceived quality. | VW/Audi TFSI engines, early Ford EcoBoost engines. |
| Post-2010s | Chains become the default for most new gasoline engine designs. | Lifetime durability marketing, total cost-of-ownership competition. | GM Ecotec engines, Mazda SkyActiv-G, most BMW and Mercedes engines. |
| Present Day | Coexistence: Chains dominate, belts used in specific applications. | Packaging constraints, cost targets for entry-level models, hybrid synergy. | Some Toyota hybrid engines, select low-displacement economy car engines. |
Ultimately, there is no single model year when belts disappeared. The change was a gradual engineering evolution. When purchasing a used car from the mid-2000s onward, it is essential to check the specific engine specification, as the choice between belt or chain has major implications for maintenance budgeting and long-term reliability.
