Dayco Engine Thermostat — DT67A
The DT67A is a Dayco engine thermostat designed to OEM specifications for compatible Hyundai and Kia applications. The thermostat's role in engine management is vital.
- Designed to OEM specifications for a direct replacement fit
- Features a heat sensing wax-filled copper power pill that detects coolant temperature in the engine
- The power pill controls coolant flow from the radiator when the engine is cold, to reach optimum operating temperature quickly
- Allows coolant to circulate through the engine once operating temperature is reached, creating a stable temperature-controlled engine environment
- Flange diameter: 54mm
- Flange to base: 33mm
- Vent valve: 29mm
- Opening temperature: 82°C (180°F)
- 2-year / 40,000 km warranty
A thermostat that has failed in the open position will make your heater appear not to work for an extended period of time during winter. If it fails in the closed position, it will cause your engine to overheat, leading to costly repairs or complete engine failure. Thermostats are supplied in a range of opening temperatures, flange diameters and vent valve configurations — check the opening temperature and dimensions against your application, and check whether a seal or gasket is supplied with the part number you need.
| SKU | DT67A |
| Model # | DT67A |
| Barcode # | 9325361305771 |
| Brand | Dayco |
| Placement On Vehicle | Engine |
| Warranty | 2 Years/40,000km |
| Type | Thermostat |
| Manufacturer Part Number | DT67A |
| Position On Vehicle | Engine |
| Vent Valve | 29mm |
| Celsius | 82°C |
| Fahrenheit | 180°F |
| Flange To Base | 33mm |
| Contains Liquid | No |
| Opening Temperature | 82 °C |

- One of the largest Automotive companies in Australia.
- Dayco products are of the highest quality with OE spec parts
- Dayco supply a variety of parts to the aftermarket industry including belts, pulleys, thermostats, tensioners among others.
- See our other items for more Dayco products
Packaging: Manufacturers periodically update their packaging and labelling. You may receive the current or a previous design — the product, formulation and part number are unchanged.
Fitment (vehicle-specific products): Vehicle fitment is based on manufacturer and supplier catalogue data and is kept as accurate as possible, but vehicle catalogues are not perfect. Some models had more than one part fitted depending on build date, engine, or component size/variant, and parts on older vehicles may have been replaced with non-original or different-style components.
Before you buy, compare the product images with the part currently fitted to your vehicle — check shape, size, connectors and mounting points. If the part on your vehicle looks different, please contact us before purchasing. It is the buyer's responsibility to confirm the part suits their vehicle before purchasing.
Not sure? Message us with your vehicle's registration number and state (preferred), or full VIN/build details, and we'll do our best to confirm fitment before you buy.
Parts returned because they do not suit the vehicle, where the listing matches the manufacturer's catalogue, are treated as a change of mind and must be unused, uninstalled and in original packaging. Nothing in this notice affects your rights under the Australian Consumer Law.