Engine Timing Belt Replacement Guide for the 2010-2014 Acura TSX V6
This guide applies ONLY to the V6 model; the 4-cylinder TSX has a timing chain that does not require routine replacement.
- This guide is ONLY for the 2010-2014 Acura TSX with the 3.5L V6 engine; the 4-cylinder model has a timing chain.
- Replacement is a critical, engine-saving service recommended every 105,000 miles or 7 years.
- Always buy a complete kit that includes the belt, water pump, tensioner, and pulleys.
- High-quality aftermarket kits from brands like Aisin, Gates, or Continental are trusted alternatives to more expensive OEM parts.
V6 Engine vs. 4-Cylinder Engine: A Critical Difference
Before purchasing any parts, it is essential to confirm which engine your 2010-2014 Acura TSX has. Only the models equipped with the 3.5L V6 engine have a timing belt that needs periodic replacement. The more common 2.4L 4-cylinder engine uses a timing chain, which is designed to last the life of the engine and does not have a scheduled replacement interval. This guide is exclusively for the V6 model.
When to Replace the Timing Belt
Acura recommends replacing the timing belt on the TSX V6 every 105,000 miles or 7 years, whichever comes first, under normal driving conditions. Your vehicle's Maintenance Minder system will display the code "4" when this service is due. For vehicles operated in extreme temperatures (above 110°F or below -20°F), the replacement interval is shortened to 60,000 miles.
Do Not Delay This Service
Postponing a timing belt replacement is a significant gamble. A failed belt on this interference engine will lead to bent valves and damaged pistons, often requiring a complete engine replacement that can cost thousands of dollars.
Choosing the Right Aftermarket Part: Belt vs. Kit
When shopping for a timing belt, you will see options for just the belt or a complete kit. It is strongly recommended to always purchase a complete kit. The labor involved in accessing the timing belt is extensive, and other components are located in the same area. A comprehensive kit typically includes:
- Timing Belt
- Water Pump and Gasket
- Hydraulic Tensioner
- Idler and Tensioner Pulleys
The water pump and tensioner are wear items. If they fail after a belt-only replacement, you will have to pay for the same costly labor all over again. For this reason, mechanics will almost always insist on replacing everything at once.
Aftermarket Brand Quality
Many aftermarket brands offer high-quality timing belt kits that are considered equivalent to OEM (Original Equipment Manufacturer) parts. Some even supply the original parts to Acura.
- Top Tier (OEM Quality): Brands like Aisin, Gates, and Continental are highly regarded by professional mechanics and Acura enthusiasts. Aisin is a known OEM supplier for Honda/Acura, and their kits often contain the exact same parts as the factory ones, such as a Mitsuboshi belt and Koyo or NTN bearings. Gates and Continental kits are also trusted for their reliability and quality components.
- Mid Tier: Brands like Dayco and ACDelco are also widely available. While generally reliable, some forum discussions suggest that the bearings and pulleys in these kits may not always be of the same top-tier Japanese quality found in Aisin or some Gates kits.
- Other Brands: INA is a reputable manufacturer of bearings and tensioners. Bando and Mitsuboshi are excellent belt manufacturers, and a Mitsuboshi belt is often included in Aisin kits. Cloyes is more known for timing chains but also offers belts.
Pro Tip: Look for an Aisin Kit
Many Acura specialists prefer the Aisin Timing Belt Kit (model TKH-002) for the J-series V6 engine. This kit is known for containing OEM-supplier parts and is considered a benchmark for quality in the aftermarket.
🎬 Watch a detailed review of the Aisin timing belt kit.Known Issues, Recalls, and Technical Service Bulletins (TSBs)
Recalls: While there was a recall for timing belts on some 2018-2019 Acura models due to a manufacturing defect, the 2010-2014 TSX V6 was not included in this specific action. The primary recalls for the 2010-2014 TSX pertain to Takata airbag inflators.
TSBs: Some Honda/Acura V6 engines have experienced a "chirping" noise from the timing belt area after the engine warms up. This is often caused by the belt making slight contact with the crankshaft pulley. TSBs (Acura 08-031, Honda 08-045) were issued, and the fix involves installing a small shim behind the idler pulley to correct the alignment. Some high-quality aftermarket kits, like those from Gates (TCK329/TCKWP329), include this shim.
| Item | Estimated Cost |
|---|---|
| New Aftermarket Kit (Belt, Water Pump, Pulleys, Tensioner) | $150 - $300 |
| Shop Labor | $450 - $650+ |
| Total Professional Job (Aftermarket Parts) | $721 - $951+ |
| Total Professional Job (OEM Parts) | $908 - $1,148+ |
Frequently Asked Questions (FAQ)
Does my 4-cylinder 2010-2014 TSX have a timing belt?
No. The 2.4L 4-cylinder engine has a timing chain, which does not require scheduled replacement. The Maintenance Minder code "4" on a 4-cylinder model refers to replacing spark plugs and checking valve clearance, but the timing belt portion does not apply.
What happens if the timing belt breaks while driving?
If the timing belt breaks, the engine will stop immediately. Because the 3.5L V6 is an interference engine, the pistons will strike the open valves, causing severe internal damage. This typically results in a repair bill that exceeds the value of the car.
Should I replace the water pump, tensioner, and pulleys with the belt?
Yes, absolutely. These components are wear items that are accessed during the timing belt job. Replacing only the belt is risky, as a failure of the original water pump or tensioner before the next 105,000-mile interval would require repeating the entire expensive labor process.
Is this a good DIY job for a beginner?
No. This is an advanced and complex repair that requires special tools, such as a crankshaft pulley holder, and precise knowledge of the engine. A mistake during installation can destroy the engine. This job is best left to a professional mechanic experienced with Honda/Acura V6 engines.
Helpful Videos
Technical Specifications
OEM Part Numbers: 14400-RCA-A01 (Timing Belt) 19200-RDV-J01 (Water Pump) 14510-RCA-A01 (Idler Pulley) 14550-RCA-A01 (Tensioner Pulley) 14520-RCA-A01 (Hydraulic Tensioner)
Belt Teeth: 197
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Acura TSX:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- V6 Engine vs. 4-Cylinder Engine: A Critical Difference
- When to Replace the Timing Belt
- Do Not Delay This Service
- Choosing the Right Aftermarket Part: Belt vs. Kit
- Aftermarket Brand Quality
- Pro Tip: Look for an Aisin Kit
- Known Issues, Recalls, and Technical Service Bulletins (TSBs)
- Frequently Asked Questions (FAQ)
- 🎟️ Get 5% Off