Overview
The Crown Automotive J3182494 is a water bypass hose for AMC V8 engines. It fits the 1972-1981 Jeep CJ5, 1972-1975 Jeep CJ6 and 1976-1981 Jeep CJ7.
A bypass hose routes coolant around the thermostat during warm-up so the engine reaches operating temperature. Crown describes its line as replacement parts for Jeep vehicles, including discontinued items.
Key features
- Bypass-type hose for AMC V8 engines
- Fits CJ5, CJ6 and CJ7 models
- Direct-fit listing per Crown Automotive
- Part number J3182494 with UPC 848399058512
Warm-up and bypass flow
A bypass hose lets coolant circulate through the engine while the thermostat is closed, which helps the engine warm up evenly. On an AMC V8 in a CJ, the hose is part of a small circuit that is easy to overlook until a leak or a slow warm-up shows up. Because the hose sits low in the system, it is often the first place to check after a coolant drop.
When replacing it, look at the rubber for swelling, cracks near the ends and soft spots that squeeze shut under light pressure. Hardened hoses can split without warning on a cold start. Replacing the hose alongside the thermostat gasket and clamps keeps the job to one drain-and-refill, which is a practical way to handle older cooling systems.
- Inspect hose ends for cracks or hardening
- Replace clamps that have lost tension
- Use fresh coolant when refilling
Specifications
| Brand | Crown Automotive |
|---|---|
| Part number | J3182494 |
| UPC | 848399058512 |
| Type | Bypass |
| Engine application | AMC V8 |
| Fitment type | Direct Fit |
Vehicle fitment
Crown lists J3182494 for the 1972-1981 Jeep CJ5 in Base, Golden Eagle, Laredo and Renegade trims; the 1972-1975 Jeep CJ6 in Base trim; and the 1976-1981 Jeep CJ7 in Base, Golden Eagle, Golden Hawk, Laredo and Renegade trims.
It fits the 1972-1981 Jeep CJ5 in Base, Golden Eagle, Laredo and Renegade trims; the 1972-1975 Jeep CJ6 in Base trim; and the 1976-1981 Jeep CJ7 in Base, Golden Eagle, Golden Hawk, Laredo and Renegade trims. Match your year, model and trim to this fitment before ordering.
Installation notes
Bypass hoses sit in the coolant circuit, so drain the system before removing the old hose. Compare routing and end fittings with the original before fitting the new one.
What’s included
One bypass hose comes with this part. Check clamps and the thermostat against your installation before starting.
