Dayco Heater Tap
The Dayco Heater Tap is a 4 port bypass valve designed to regulate the flow of coolant to the heater core. It is an essential component in controlling the heating system of your vehicle.
- Type: 4 port bypass
- Outside Diameter: 16mm
The Heater Control Valve is responsible for blocking or allowing the flow of coolant to the heater core, depending on the heating requirements inside the vehicle. When the valve is in the off position, coolant flow to the heater core is blocked, ensuring no heating is provided. Conversely, when heating is needed, the valve allows coolant to flow to the heater core.
In late model vehicles, the heater valve can be activated by vacuum control, while earlier models use a cable mechanism. It is important to note that common failures of the heater valve include leakage, blocking, and cracking when removing heater hoses, especially in late model valves made of polymer.
| SKU | DHV6315 |
| Model # | DHV6315 |
| Barcode # | 9325361315244 |
| Brand | Dayco |
| Outside Diameter | 16mm |
| Type | 4 port bypass |
| Contains Liquid | No |

- 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.