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OE Quality
60-Day Returns
DaycoPart #: 87791
Dayco 87791 HVAC Heater Hose - Heater To Water Pump
⚙️ 14 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$44.97Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
📦Small I.D. Heater Hose, Heater To Water Pump
🚗Fitment: Ford, Excursion, F-250 Super Duty, and F-350 Super Duty
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all HVAC Heater Hose options
Dayco 87791 HVAC Heater Hose - Heater To Water Pump
| Brand | Dayco |
| Part Number | 87791 |
| Position | Small I.D. Heater Hose, Heater To Water Pump |
| Material | Epdm |
| Color | Black |
| End 1 Inside Diameter | 5/8 |
| End 2 Inside Diameter | 5/8 |
| Contains Heat Shield | N |
| Contains Protective Sleeve | Y |
| Hose Type | Single i.d. hose |
| SAE Specification | Sae j20r3 class d-1, sae j1684 type ec |
| Trunk Height | 29 |
This part fits 14 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2003 | Ford | Excursion | 7.3L | V8 | Heater To Water Pump | w/Quick Connect; Small I.D. Heater Hose |
| 2003 | Ford | F-250 Super Duty | 7.3L | V8 | Heater To Water Pump | w/Quick Connect; Small I.D. Heater Hose |
| 2003 | Ford | F-350 Super Duty | 7.3L | V8 | Heater To Water Pump | w/Quick Connect; Small I.D. Heater Hose |
| 2002 | Ford | Excursion | 7.3L | V8 | Heater To Water Pump | w/Quick Connect; Small I.D. Heater Hose |
| 2002 | Ford | F-250 Super Duty | 7.3L | V8 | Heater To Water Pump | w/Quick Connect; Small I.D. Heater Hose |
| 2002 | Ford | F-350 Super Duty | 7.3L | V8 | Heater To Water Pump | w/Quick Connect; Small I.D. Heater Hose |
| 2001 | Ford | Excursion | 7.3L | V8 | Heater To Water Pump | w/Quick Connect; Small I.D. Heater Hose |
| 2001 | Ford | F-250 Super Duty | 7.3L | V8 | Heater To Water Pump | w/Quick Connect; Small I.D. Heater Hose |
| 2001 | Ford | F-350 Super Duty | 7.3L | V8 | Heater To Water Pump | w/Quick Connect; Small I.D. Heater Hose |
| 2000 | Ford | Excursion | 7.3L | V8 | Heater To Water Pump | w/Quick Connect; Small I.D. Heater Hose |
| 2000 | Ford | F-250 Super Duty | 7.3L | V8 | Heater To Water Pump | w/Quick Connect; Small I.D. Heater Hose |
| 2000 | Ford | F-350 Super Duty | 7.3L | V8 | Heater To Water Pump | w/Quick Connect; Small I.D. Heater Hose |
| 1999 | Ford | F-250 Super Duty | 7.3L | V8 | Heater To Water Pump | w/Quick Connect; Small I.D. Heater Hose |
| 1999 | Ford | F-350 Super Duty | 7.3L | V8 | Heater To Water Pump | w/Quick Connect; Small I.D. Heater Hose |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
E87791
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.