Reviews of DAYCO parts For Business

Average Rating ? The manufacturer's average rating is calculated based on ratings of all its spare parts. It determines the place in the manufacturer ranking
2.2
Manufacturer Ranking
#191
19
Spare Parts
5
Country
USA
Website
dayco.com
Spare Parts
DAYCO Timing belt

I got my kit from MetalMan Parts. Dayco timing belt, Continental serpentine belt, Litens tensioner, INA rollers, Graf metal pump and all the recommended hardware \ud83d\udc4d

Pros: recommended hardware
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DAYCO Timing belt
RiggedRearend
  • Visible wear:
Rating 5.0

Der erste Zahnriemen war 28 Jahre alt und hatte 105.000 km gelaufen. Beim Abnehmen merkte man, dass er merkwürdig elastisch war und die Zähne wie Gummi, aber er hat gehalten. Die Wasserpumpe und Rollen waren tadellos. Der ganze Kram war von DAYCO. Was für Qualität! Hat mir den Motor gerettet.

Pros: extrem lange Haltbarkeit, Motor gerettet
Cons: Riemen elastisch, Zähne wie Gummi
Mileage: 105000 km
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DAYCO Timing belt
stripe888
  • Visible wear:
Rating 5.0

La voiture de mon pote avait une courroie Dayco qui était en bon état à 65 000 + miles

Pros: bon état, longue durée
Mileage: 104607 km
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DAYCO Thermostat
milioaneee
  • Overheating:
Rating 3.0

Today I replaced it with a Dayco thermostat, refilled the coolant, and bled the system. I noticed the following: the engine coolant reaches the normal operating temperature in stop-and-go traffic, but when I drive at higher speeds for a longer distance, the coolant temperature drops slightly but noticeably. This is even more apparent when the ventilation/fan is on.

Pros: reaches normal temperature
Cons: temperature drops at speed
Vehicle: Chevrolet Aveo
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DAYCO Timing belt

Wet belts dont like new fuel, and dont like low mileages... Found the below information which backs up what ive been saying for a long while, the ecoboost engines are fine...if they cover high mileages and oil is changed regularly.... Dayco, a leading belt manufacturer, has investigated the impact of ethanol and petrol contamination on its timing belts. Their research has indicated that the presence of fuel in the oil, especially due to short, low-speed drives, can overwhelm the oil’s additives and cause belt degradation. This means that the belts may fail before their expected lifespan, even if the belt itself is of high quality. The Importance of Proper Maintenance and Usage: To mitigate the risk of premature belt failure due to ethanol and petrol contamination, it’s crucial to maintain a vehicle properly. This includes avoiding short, low-speed journeys that can lead to fuel contamination of the oil. Regularly changing the oil and ensuring the oil filter is in good condition can help prevent fuel from entering the engine oil. If a vehicle is stored for extended periods, it’s advisable to use fuel stabilizer to prevent ethanol from separating and potentially damaging the fuel system, including the belt.

Pros: fine with high mileage
Cons: degrades with low mileage, sensitive to fuel
Vehicle: Ford
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DAYCO Timing belt
Darenpnw
  • Visible wear:
Rating 1.0

Be careful who you purchase from. I bought one a year or so ago everything was great but the timing belt itself broke. I got lucky and didn't bend any valves. Bought a Dayco belt and haven't had any problems.

Cons: timing belt broke
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DAYCO Drive belt
Ulrichvon_Jungingen
  • Smell:
  • Visible wear:
Rating 1.0

I tried a Dayco 1550 and this melted and cooked off in about 2 months and I was shocked as the overall length difference is 5mm.

Cons: melted quickly, incorrect length
Vehicle: Volkswagen Amarok
Part number: 1550
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DAYCO Drive belt
bigtencopy
  • Visible wear:
Rating 2.0

I have used Dayco and Gates in my 800 Doo. they typically explode within 500 miles, but that could be my wacky sled. Although I’ve never had a problem with OEM

Pros: no problem with OEM
Cons: explode within 500 miles
Mileage: 805 km
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Owner reviews of DAYCO products

The DAYCO brand is registered in USA. Official website: http://www.dayco.com/ .

In March 2026, PartReview recorded 19 reviews across 5 parts by DAYCO. Average rating — 2.2 out of 5.

DAYCO is in the PartReview manufacturers ranking, currently at position 191. Over the last 30 days it dropped by 0 points.

Popular DAYCO parts

The most popular DAYCO products on PartReview:

  1. Timing belt DAYCO - 12 reviews. PR Score — 73, average rating — 3.7.
  2. Drive belt DAYCO - 3 reviews. PR Score — not available yet, average rating — 2.3.
  3. Timing belt kit DAYCO - 2 reviews. PR Score — not available yet, average rating — 1.
  4. Radiator hose DAYCO - 1 review. PR Score — not available yet, average rating — 1.
  5. Thermostat DAYCO - 1 review. PR Score — not available yet, average rating — 3.

Most owner reviews about DAYCO parts are collected on these pages.

Top-rated DAYCO parts

DAYCO achieved top positions in these PartReview part rankings:

  1. Best timing belt — ranked 10 among 13 manufacturers. Received 994 votes.

Comparisons of DAYCO parts

The most interesting comparisons of DAYCO with other manufacturers help you see which is better:

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