Designed to transfer glycol-based coolants to and from the heater core, by-pass to the radiator, as well as through other components in the vehicle’s coolant system. - EPDM tube and cover with synthetic knit reinforcement.
- Resistant to Electrochemical Degradation (ECR).
- Compatible with most coolants including ethylene glycol and propylene glycol-based coolants, as well as organic acid modified, Long Life coolants.
- Temperature range of -40°F to +275°F (-40°C to +135°C).
- Not for use in fuel or oil transfer applications.
- Meets or exceeds SAE 20R3EC Class D1 and Class D2 specifications as well as many original equipment specifications.
 Signs it is Time to Replace Your Heater Hose(s) Prevent system contamination and coolant leaks that could cause your engine to overheat by checking for these common signs of Heater Hose damage / failure:
| INTERNAL DAMAGE |
|
Soft / mushy hose ends, usually about 2 inches from the clamp.
 Internally Damaged Hose |
| LEAKAGE |
|
Moisture, drips or coolant bleed marks on or around the hose clamps, connectors or hose.
 Leaking Hose |
| HEAT DAMAGE |
|
Slight swelling, or a hardened, glossy cover that is covered with cracks.
 Heat Damaged Hose |
| OZONE DAMAGE |
|
Tiny, parallel cracks in the cover, usually at hose bends.
 Ozone Damaged Hose |
| ABRASION DAMAGE |
|
Rubbing marks on, or damage to the hose cover.
 Abrasion Damaged Hose |
| OIL CONTAMINATION |
|
Soft or spongy to the touch - bulges and swelling are readily apparent.
 Oil Contaminated Hose |
|
