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OE Quality
60-Day Returns
DaycoPart #: 86129
Dayco 86129 HVAC Heater Hose - Engine To Valve or Valve To Engine
⚙️ 6 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$15.51Free 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, Engine To Valve and Valve To Engine
🚗Fitment: Buick, Oldsmobile, and Pontiac, 88, 98, Bonneville, LSS, and Park Avenue
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
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Dayco 86129 HVAC Heater Hose - Engine To Valve or Valve To Engine
| Brand | Dayco |
| Part Number | 86129 |
| Position | Small I.D. Heater Hose, Engine To Valve and Valve To Engine |
| Material | Epdm |
| Color | Black |
| End 1 Inside Diameter | 23/32 |
| End 2 Inside Diameter | 23/32 |
| Contains Heat Shield | N |
| Contains Protective Sleeve | N |
| Hose Type | Single i.d. hose |
| SAE Specification | Sae j20r3 class d-1, sae j1684 type ec |
| Trunk Height | 8 |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1996 | Oldsmobile | 88 | Engine To Valve | Small I.D. Heater Hose |
| 1996 | Oldsmobile | LSS | Engine To Valve | Small I.D. Heater Hose |
| 1995 | Buick | Park Avenue | Engine To Valve | Small I.D. Heater Hose |
| 1995 | Oldsmobile | 88 | Engine To Valve | Small I.D. Heater Hose |
| 1995 | Oldsmobile | 98 | Engine To Valve | Small I.D. Heater Hose |
| 1995 | Pontiac | Bonneville | Valve To Engine | 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:
B86129
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.