The Mishimoto Silicone Oil Cooler Hose replaces the factory rubber oil cooler hose on the Jeep Wrangler 392, which cracks and collapses at the bend under the repeated heat cycling of the 6.4L V8. It is a single continuous silicone piece with embedded fiber reinforcement that holds its shape and resists expansion and collapse under sustained pressure. A smooth internal taper runs the full length to remove the flow restriction created by the factory plastic joiner, and worm-gear clamps are included for a secure, field-serviceable connection at each end.
Specifications
| Type | Silicone oil cooler hose |
| Material | Silicone with embedded fiber reinforcement |
| Color | Black |
| Warranty | Mishimoto Lifetime Warranty |
| Quantity | 1 (single hose) |
| Part Number | MMHOSE-392-21OC |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2023-2024,2026 | Jeep | Wrangler | Rubicon 392 |
| 2024-2025 | Jeep | Wrangler | Rubicon 392 Final Edition |
| 2021-2022 | Jeep | Wrangler | Unlimited Rubicon 392 |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
