Replacing the timing belt is a critical maintenance task for any Subaru owner. The wrong kit can lead to premature failure or engine damage. We researched and compared the top timing belt kits on the market, evaluating manufacturer specifications, industry standards, and aggregated owner feedback. This guide breaks down the best options for various Subaru models, from the EJ25 to the FA20, helping you choose a kit that balances durability, performance, and value.
| Photo | Product | Score | Buy |
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Aisin TKT-036 Timing Belt Kit Top Pick Includes water pump; fits Subaru EJ20/EJ25 engines |
9.0 | 🛒 Check Price |
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Gates TCK245 Timing Belt Kit Runner Up Fits Subaru EJ25 DOHC; includes belt, tensioner, idlers |
8.7 | 🛒 Check Price |
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Continental 4060815 Timing Belt Kit Best Value Fits Subaru EJ253; includes belt and tensioner |
8.4 | 🛒 Check Price |
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Dayco 95015 Timing Belt Kit Solid Choice Fits Subaru EJ20/EJ25; includes belt, tensioner, idlers |
8.2 | 🛒 Check Price |
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ACDelco 12622474 Professional Timing Belt Kit OEM Alternative Fits Subaru EJ25; includes belt, tensioner, idlers |
8.0 | 🛒 Check Price |
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Beck/Arnley 178-1003 Timing Belt Kit Budget Pick Fits Subaru EJ25 SOHC; includes belt and tensioner |
7.8 | 🛒 Check Price |
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Mitsuboshi K050836 Timing Belt Kit Niche Pick Fits Subaru EJ20; includes belt only |
7.3 | 🛒 Check Price |
1. Aisin TKT-036 Timing Belt Kit: Top Pick
The Aisin TKT-036 is widely regarded as the gold standard for Subaru timing belt replacements. We compared its specifications to OEM parts and found identical materials and tolerances. Owner feedback consistently praises its quiet operation and long service life. The included water pump is a major advantage, saving labor on a future replacement.
However, this kit is not the most budget-friendly option. For a vehicle with over 200,000 miles that may not see another 100,000, a less expensive kit may suffice. Also, some owners reported the water pump gasket needed additional sealant. Skip this if you are on a tight budget or if your Subaru uses a different engine family like the FA20.
- OEM-quality components from a trusted supplier
- Water pump included in the kit
- Comprehensive: belt, tensioner, idlers, and seals
Pros: Excellent fit and finish, matches OEM specs; Water pump extends service interval
Cons: Premium price, may be overkill for older high-mileage vehicles
2. Gates TCK245 Timing Belt Kit: Runner Up
Gates is a leading name in belt technology, and the TCK245 kit reflects that reputation. We researched the materials and found the belt uses aramid fiber tensile cords for strength. Owner feedback indicates it holds up well under normal driving conditions. The kit is straightforward to install, with all components fitting as expected.
On the downside, the lack of a water pump means you may have to buy one separately or replace it later. A small number of users reported a chirping noise from the tensioner after a few thousand miles, though most found it resolved on its own. We recommend this kit for DIYers who prefer to source their own water pump or for those who have already replaced the pump recently.
- High-strength EPDM rubber belt
- Micro-V grooves for precise engagement
- Tensioner and idlers pre-greased and sealed
Pros: Reliable brand with extensive automotive experience; Good value for the quality
Cons: No water pump included; Some owners reported tensioner noise after installation
3. Continental 4060815 Timing Belt Kit: Best Value
For Subaru owners looking to save money, the Continental 4060815 offers a solid balance. We compared its specs to OEM and found it meets SAE J1459 standards. Owner feedback is generally positive, with many noting it performs well for the price. The included tensioner is a hydraulic unit that helps reduce noise.
However, this kit is minimal: it lacks idler pulleys and a water pump. You will need to purchase those separately. A few owners reported the belt began to show signs of wear before the recommended replacement interval. We suggest this only for those who are comfortable buying additional components and who do not plan to keep the vehicle long-term.
- Affordable alternative to OEM
- Belt meets SAE standards
- Tensioner with hydraulic damper
Pros: Budget-friendly without sacrificing basic quality; Easy to find and purchase
Cons: No idlers or water pump included; Some users reported belt wear earlier than expected
4. Dayco 95015 Timing Belt Kit: Solid Choice
Dayco is a well-known aftermarket brand, and the 95015 kit is a popular choice. We evaluated the belt’s construction and found it uses a high-modulus rubber compound for flexibility. Owner feedback is mixed: many report trouble-free installation and operation, while a minority had idler bearing noise or failure within 30,000 miles.
Given the variability, we recommend this kit for experienced DIYers who can inspect components before installation. It is not the best choice for those who want a set-and-forget solution. If you prioritize long-term reliability, consider a kit with a water pump or from a brand with more consistent quality control.
- Reinforced belt with high-modulus rubber
- Idlers with sealed bearings
- Tensioner with spring-loaded design
Pros: Complete kit with all pulleys; Good reputation in the aftermarket
Cons: No water pump; Some owners experienced idler bearing failure
5. ACDelco 12622474 Professional Timing Belt Kit: OEM Alternative
ACDelco is primarily known for GM vehicles, but their timing belt kit for Subaru is a viable option. We researched the materials and found the belt uses fiberglass cords similar to many OEM belts. Owner feedback indicates it fits well and performs adequately for daily driving.
However, some Subaru enthusiasts prefer brands with a longer history in Subaru applications. A few owners reported the belt developed cracks prematurely, though this may be isolated. We suggest this kit for those who have had good experiences with ACDelco products or who need a quick replacement and trust the brand.
- Professional grade components
- Belt with fiberglass tensile cords
- Tensioner and idlers with long-life grease
Pros: OEM supplier for many GM vehicles, trusted brand; Complete kit with all necessary parts
Cons: Not all Subaru owners trust a GM brand; Some reports of belt cracking after 50,000 miles
6. Beck/Arnley 178-1003 Timing Belt Kit: Budget Pick
The Beck/Arnley 178-1003 is among the most affordable timing belt kits we researched. It is a basic kit that includes only the belt and tensioner. For a Subaru with a simple SOHC engine and low miles, it may be sufficient. Owner feedback is mixed: some say it works fine, others report belt noise or premature wear.
We recommend this kit only for emergency replacements or for vehicles that will be sold soon. It lacks the idler pulleys that are often recommended for replacement, and the overall quality is lower than other options. Skip this if you plan to keep the car for another 60,000 miles or more.
- Economical choice for older Subarus
- Belt meets OE specifications
- Tensioner with metal pulley
Pros: Lowest price point in our comparison; Adequate for low-mileage vehicles
Cons: Limited components (no idlers or water pump); Mixed durability feedback
7. Mitsuboshi K050836 Timing Belt Kit: Niche Pick
The Mitsuboshi K050836 is a belt-only option for Subaru EJ20 engines. We researched the brand and found they supply belts to some Asian OEMs. However, this kit is extremely bare-bones: no tensioner, no idlers, no seals. You would need to source all other components separately.
Owner feedback is sparse, and the lack of a complete kit makes it impractical for most DIYers. We only recommend this for those who already have tensioners and idlers in good condition and just need a belt. For a full replacement, look elsewhere.
- Belt only, no tensioner or pulleys
- Made in Japan
- OEM supplier for some Asian automakers
Pros: Low cost for the belt alone; Japanese manufacturing may appeal to some
Cons: Very incomplete kit; Limited owner feedback available
Frequently Asked Questions
How often should I replace the timing belt on my Subaru?
Subaru typically recommends replacing the timing belt every 105,000 miles or 8 years, whichever comes first. However, severe driving conditions (extreme temperatures, dusty roads, frequent short trips) may require earlier replacement. Always consult your owner’s manual for your specific model.
Should I replace the water pump with the timing belt?
Yes, it is highly recommended to replace the water pump at the same time. The water pump is driven by the timing belt and has a similar service life. Replacing both together saves labor costs and prevents a future failure that could damage the engine. Many timing belt kits include a water pump for this reason.
Can I use any timing belt kit on any Subaru model?
No, timing belt kits are engine-specific. Subaru uses different engines like the EJ20, EJ25, FA20, and others. You must select a kit that matches your engine code and year. Check the product fitment guide or use your vehicle’s VIN to ensure compatibility.
What happens if a timing belt breaks while driving?
Subaru engines are interference engines, meaning the pistons and valves occupy the same space at different times. If the timing belt breaks, the pistons can collide with the valves, causing major engine damage (bent valves, damaged pistons, and possibly destroyed cylinder heads). This often requires a costly rebuild or engine replacement.
Is it worth buying a premium timing belt kit like Aisin?
For most Subaru owners, yes. Premium kits like Aisin include high-quality components that meet or exceed OEM specifications. They often include a water pump, tensioner, idlers, and seals, ensuring a complete and reliable replacement. While they cost more upfront, they offer confidence on the road and longer service life, making them a better value for long-term ownership.
Our Verdict
After researching specifications and owner feedback, our top pick is the Aisin TKT-036 Timing Belt Kit for its OEM quality, included water pump, and long service life. The runner up is the Gates TCK245, a reliable and complete kit that offers excellent performance at a slightly lower price. For budget-conscious owners, the Continental 4060815 provides decent quality but requires additional components.
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