HomeHVAC > Hoses and PipesDayco 87902 HVAC Heater Hose - Heater To Engine (Upper)
Part #: 87902

Dayco 87902 HVAC Heater Hose - Heater To Engine (Upper)

Small I.D. Heater Hose, Heater To Engine (Upper)
⚙️ 19 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$33.72Free 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 Engine (Upper)
🚗Fitment: Buick, Chevrolet, and Pontiac, Allure, Grand Prix, Impala, LaCrosse, and Monte Carlo
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Dayco Small I.D. Heater Hose 87902

The Dayco Small I.D. Heater Hose 87902 is designed for reliable HVAC system performance in select Buick, Chevrolet, and Pontiac vehicles. This dual inside diameter hose is engineered to meet specific SAE standards, ensuring durability and proper fitment for models like the Buick LaCrosse and Chevrolet Impala.

  • Constructed from durable EPDM material for heat and chemical resistance
  • Dual inside diameters: 5/8 inch and 3/4 inch ends for versatile connection
  • Complies with SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
  • Black color for standard OEM appearance
  • Trunk height of 18 inches suitable for HVAC routing

Detailed Product Description

The Dayco Small I.D. Heater Hose 87902 is a dual inside diameter hose made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids. The hose features a 5/8 inch inside diameter on one end and a 3/4 inch inside diameter on the other, allowing it to connect different HVAC components efficiently. This hose does not include a heat shield or protective sleeve, focusing on straightforward, reliable performance within the heating system. It meets SAE J20R3 Class D-1 and SAE J1684 Type EC standards, which define requirements for coolant and heater hoses in automotive applications.

About the Small I.D. Heater Hose Product Line

The Small I.D. Heater Hose line from Dayco is tailored for HVAC applications requiring hoses with varying inside diameters to accommodate different connection points. This product line emphasizes compliance with SAE specifications and material quality, providing dependable service in heating systems for various GM vehicles. The 87902 part is a representative example, designed to fit specific Buick, Chevrolet, and Pontiac models.

Compatible Vehicles and Common Applications

  • Buick LaCrosse HVAC heater hose replacement
  • Chevrolet Impala heater hose repair
  • Pontiac Grand Prix and Monte Carlo heating system maintenance
  • Buick Allure HVAC hose connection
  • Chevrolet Monte Carlo heater hose replacement

Installation Notes and Tips

  • Verify hose diameters match the vehicle’s HVAC fittings before installation
  • Ensure the hose routing does not interfere with moving parts or sharp edges
  • Use proper clamps to secure hose ends and prevent leaks
  • Inspect surrounding components for wear or damage during replacement

Quality Assurance

Dayco manufactures the Small I.D. Heater Hose 87902 to meet stringent SAE standards, ensuring consistent quality and performance. The EPDM material provides resistance to heat and automotive fluids, contributing to the hose’s longevity. While specific warranty details are not provided, Dayco products typically adhere to industry quality controls for HVAC components.

BrandDayco
Part Number87902
PositionSmall I.D. Heater Hose, Heater To Engine (Upper)
MaterialEpdm
ColorBlack
End 1 Inside Diameter5/8
End 2 Inside Diameter3/4
Contains Heat ShieldN
Contains Protective SleeveN
Hose TypeDual i.d. hose
SAE SpecificationSae j20r3 class d-1, sae j1684 type ec
Trunk Height18

This part fits 19 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2009BuickAllure3.8LV6Heater To Engine (Upper)Small I.D. Heater Hose
2009BuickLaCrosse3.8LV6Heater To Engine (Upper)Small I.D. Heater Hose
2008BuickAllure3.8LV6Heater To Engine (Upper)Small I.D. Heater Hose
2008BuickLaCrosse3.8LV6Heater To Engine (Upper)Small I.D. Heater Hose
2008PontiacGrand Prix3.8LV6Heater To Engine (Upper)Small I.D. Heater Hose
2007BuickAllure3.8LV6Heater To Engine (Upper)Small I.D. Heater Hose
2007BuickLaCrosse3.8LV6Heater To Engine (Upper)Small I.D. Heater Hose
2007PontiacGrand Prix3.8LV6Heater To Engine (Upper)Small I.D. Heater Hose
2006BuickAllure3.8LV6Heater To Engine (Upper)Small I.D. Heater Hose
2006BuickLaCrosse3.8LV6Heater To Engine (Upper)Small I.D. Heater Hose
2006PontiacGrand Prix3.8LV6Heater To Engine (Upper)Small I.D. Heater Hose
2005BuickAllure3.8LV6Heater To Engine (Upper)Small I.D. Heater Hose
2005BuickLaCrosse3.8LV6Heater To Engine (Upper)Small I.D. Heater Hose
2005ChevroletImpala3.8LV6Heater To Engine (Upper)Small I.D. Heater Hose
2005ChevroletMonte Carlo3.8LV6Heater To Engine (Upper)Small I.D. Heater Hose
2005PontiacGrand Prix3.8LV6Heater To Engine (Upper)Small I.D. Heater Hose
2004ChevroletImpala3.8LV6Heater To Engine (Upper)Small I.D. Heater Hose
2004ChevroletMonte Carlo3.8LV6Heater To Engine (Upper)Small I.D. Heater Hose
2004PontiacGrand PrixHeater To Engine (Upper)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:

18314L

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.