Which acuras have timing chains?
Most Acura engines use timing chains rather than belts. In today’s lineup, essentially all production Acura powertrains rely on timing chains, including the K-series four-cylinders, J-series V6s, and the brand’s current turbocharged and larger-displacement engines. There are no active Acura engines that use a timing belt in production.
This article explains which engine families typically use timing chains and which current Acura models employ those engines. A timing chain is designed to synchronize the crankshaft and camshafts and generally requires less frequent replacement than a timing belt, though regular inspection of chains, guides, and tensioners remains important.
Engine families that use timing chains
These are the primary Acura engine configurations that rely on a timing chain rather than a belt. They cover most of the modern lineup and are commonly found across several current and recent models.
- K-series four-cylinder engines (2.0L and 2.4L) — known for durable timing chains and widespread use in sportier and compact models.
- J-series V6 engines (approximately 3.0L to 3.7L) — used in larger sedans, SUVs, and performance variants, all chain-driven.
- Turbocharged inline-four engines (recent 2.0L turbo applications) — current turbocharged models rely on a timing chain configuration.
- Other V6 configurations in the lineup (3.5L and related derivatives) — chain-driven and found in MDX, TLX, and related models.
These families encompass the bulk of Acura’s current powertrains, including mainstream sedans, crossovers, and performance variants. For a specific model-year pairing, consult the engine code in the owner’s manual or the official service documentation to confirm the timing mechanism.
Current Acura models with timing chain-driven engines
Below are the mainstream, actively sold Acura models and the engines they use that rely on timing chains. This reflects the shift in the industry toward chain-driven designs in the 2010s and 2020s.
- ILX — typically available with a 2.0L i-VTEC or 2.4L i-VTEC engine; both are timing-chain designs.
- TLX — offered with a 2.0L turbo or a 3.5L V6 in certain variants; both families use timing chains.
- RDX — 2.0L turbocharged inline-four; timing chain.
- MDX — 3.5L V6 in recent generations (and earlier variants with larger displacement); timing chain.
- NSX — 3.5L twin-turbo V6 hybrid powertrain; timing chain.
Note: The brand has phased out older models such as the TSX, RLX, and certain iterations of the RL/MDX that used earlier engine designs. In all currently available models, the engines employ timing chains rather than belts. If you’re evaluating a used example, verify the exact engine code to confirm the timing system on that specific year and variant.
Summary
Across Acura’s current and recent production, timing chains are the standard for most engines. This includes the ILX, TLX, RDX, MDX, and NSX, all of which use chain-driven powertrains rather than belts. Historical models such as the RSX or TSX employed different configurations, but they are no longer in regular production. If you want a precise year-by-year table of engines and their timing methods, I can compile that from official specs and service manuals.
What acuras have timing chains?
If you own a late model Acura vehicle that has a 4 cylinder engine, then it does not have an Acura timing belt, but instead it utilizes a timing chain. Late model Acura vehicles that use a timing chain include the Acura TSX (4 cylinder models only), the Acura RSX, the Acura ILX, and the Acura RDX.
Does the 2019 Acura ILX have a timing belt or chain?
Timing Chain
Notes: Engine Timing Chain.
Does the Acura RDX have a timing belt or a timing chain?
The Acura RDX uses a timing chain on its later 4-cylinder models, but earlier V6 models use a timing belt. Timing chains are designed to last the life of the engine and don't require periodic replacement, while timing belts are a maintenance item that typically needs to be replaced around every 100,000 miles to prevent engine damage.
You can watch this video to learn how to replace the timing belt and water pump on a 2017 Acura RDX V6: 1mDo It YourselfYouTube · Sep 14, 2022
Timing chain (4-cylinder models)
- Durability: A timing chain is a more durable component designed to last the life of the engine.
- Maintenance: It does not have a scheduled replacement interval, but it is important to check the timing chain tensioner and guides for wear at high mileage.
- Problem signs: Listen for rattling noises from the front of the engine or notice rough idling, which could indicate a problem with the timing chain components.
Timing belt (V6 models)
- Durability: A timing belt is made of reinforced rubber and is a maintenance item that wears out over time.
- Maintenance: It typically needs to be replaced around every 100,000 miles to prevent catastrophic engine damage if it breaks.
- Problem signs: Signs of wear may include cracks or stretching, and a failed timing belt can cause major engine damage.
How to know which one your RDX has
- Check your owner's manual: The manual will specify whether your engine has a timing belt or a timing chain.
- Consult the vehicle's specifications: Look up your specific model year and engine type online. For example, the 2009 RDX Turbo has a timing belt, while newer 4-cylinder RDX models have a chain.
Does the Acura 3.5 L V6 have a timing belt or chain?
If your Acura has a V6 engine like the Acura MDX or the RLX, it's manufactured with a timing belt that needs to be replaced for maintenance.
