What size heater hose do I need?
If you need to replace heater hoses, measure both the length and inside diameter of the old hose. Heater hose comes in ½-, 8- or ¾-inch sizes and is usually sold by the foot. On some cars, the inlet hose could be a different size than the outlet hose, so don’t measure only one and assume they’re the same.
What is the outside diameter of 5/8 heater hose?
625″|16mm)
What size is car radiator hose?
On traditional muscle-car V8 engines, typically the lower radiator hose should be about 1438-inch larger than the top hose (for example, if the top hose ID is 1 Inches, the bottom hose usually measures 134 or 178 inches).
What is the inside diameter of a 5/8 inch heater hose?
Dimensions
| Actual inside diameter (in.) | .625 | .875 |
|---|---|---|
| Nominal Inside Pipe Diameter (In.) | 5/8″ | .1875 |
| Product Length (ft.) | 10 ft |
Is heater hose measured by ID or OD?
Hoses are always measured by the I.D (inside diameter or bore). This is the important measurement. The outside diameter may sometimes be quoted in a technical drawing or such like, but this is not as important. Hoses are measured by the I.D because they fit over a metal/solid tube.
What size is #12 hose?
For example: a 3/8″ standard hose equals -6 AN….Russell Performance Technical Support.
| AN Size | Metal Tube O.D. | Thread Size |
|---|---|---|
| -6 AN | 3/8″ | 9/16″ – 18 SAE |
| -8 AN | 1/2″ | 3/4″ – 16 SAE |
| -10 AN | 5/8″ | 7/8″ – 14 SAE |
| -12 AN | 3/4″ | 1-1/16″ – 12 SAE |
What is heater hose?
Heater hoses are used to transfer the excess heat, in the form of engine coolant, from the engine into the heater core. Once the heated engine coolant reaches the heater core, it travels through small tubes inside the heater core.
How do I know what size hose to get?
Hose sizes are designated based on the inner diameter of the hose, which is the measurement of the straight distance between the two furthest points on the inner surface of the tube. Virtually all hoses made globally are made on inch sizes even if given a metric size designation.