HomeBelts and Cooling > Hoses and PipesDayco 70949 Radiator Coolant Hose - Lower, Lower - Pipe To Radiator or Upper
Part #: 70949

Dayco 70949 Radiator Coolant Hose - Lower, Lower - Pipe To Radiator or Upper

Curved Radiator Hose, Lower
28 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$30.12Free 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
Curved Radiator Hose, Lower
Fitment: Chevrolet, Mitsubishi, Nissan, Isuzu, Triumph, and Buick, Camaro, Diamante, Stanza, Impulse, Trooper, Pickup, LUV, TR7, Century, and Regal
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Durable Radiator Coolant Hose for Select Buick and Chevrolet Models

The Dayco Curved Radiator Hose 70949 is engineered to provide reliable coolant flow for various Buick, Chevrolet, Isuzu, and Mitsubishi vehicles. Designed with precision, this radiator coolant hose ensures proper fitment and performance for models like the Camaro, Century, and Regal.

  • Constructed from high-quality EPDM material for heat and chemical resistance
  • Black color with a curved design to match specific engine layouts
  • Consistent 1 1/4 inch inside diameter on both ends for uniform coolant flow
  • Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Single inside diameter hose type with a trunk height of 15 1/2 inches

About the Dayco Curved Radiator Hose Product Line

The Curved Radiator Hose line by Dayco focuses on delivering hoses that conform to specific engine configurations requiring curved coolant pathways. This product line emphasizes durability and precise fitment, reducing the risk of leaks and coolant loss. The 70949 part number is part of this line, designed to meet stringent SAE standards and provide consistent performance in demanding automotive cooling systems.

Product Details and Specifications

This radiator coolant hose is made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids. The hose features a uniform 1 1/4 inch inside diameter on both ends, ensuring compatibility with corresponding radiator and engine fittings. The black color and curved shape allow it to fit neatly within the engine bay without interfering with other components. It does not include a heat shield or protective sleeve, which is typical for this hose type. The hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive cooling applications.

Compatible Vehicles and Common Applications

  • Buick Century and Regal models requiring a curved radiator hose
  • Chevrolet Camaro and Pickup trucks with matching hose specifications
  • Isuzu Trooper and LUV models needing reliable coolant hose replacement
  • Mitsubishi Diamante and Impulse vehicles with specific radiator hose requirements

Installation Notes and Tips

  • Ensure the hose diameter matches the radiator and engine fittings (1 1/4 inch inside diameter)
  • Inspect hose routing to avoid contact with sharp edges or moving parts
  • Use appropriate clamps to secure the hose ends firmly
  • Replace any worn or damaged clamps during installation for optimal sealing
  • Verify coolant system pressure and check for leaks after installation

Quality Assurance and Warranty Information

Dayco manufactures the Curved Radiator Hose 70949 to meet industry SAE specifications, ensuring consistent quality and durability. While specific warranty details are not provided here, Dayco products typically come with manufacturer-backed warranties covering defects in materials and workmanship. Using this hose helps maintain the integrity of the cooling system in compatible Buick, Chevrolet, Isuzu, and Mitsubishi vehicles.

BrandDayco
Part Number70949
PositionCurved Radiator Hose, Lower
ColorBlack
End 1 Inside Diameter1 1/4
End 2 Inside Diameter1 1/4
Hose TypeSingle I.D. Hose
MaterialEPDM
SAE SpecificationSAE J20R4 Class D-1, SAE J1684 Type EC
Trunk Height15 1/2

This part fits 28 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2015ChevroletCamaro3.6LV6LowerCurved Radiator Hose
2014ChevroletCamaro3.6LV6LowerCurved Radiator Hose
2013ChevroletCamaro3.6LV6LowerCurved Radiator Hose
2012ChevroletCamaro3.6LV6LowerCurved Radiator Hose
2011ChevroletCamaro3.6LV6LowerCurved Radiator Hose
2010ChevroletCamaro3.6LV6LowerCurved Radiator Hose
1996MitsubishiDiamanteUpperCurved Radiator Hose
1995MitsubishiDiamanteUpperCurved Radiator Hose
1994MitsubishiDiamanteUpperCurved Radiator Hose
1993MitsubishiDiamanteUpperCurved Radiator Hose
1992MitsubishiDiamanteUpperCurved Radiator Hose
1987IsuzuImpulse1.9LL4UpperCurved Radiator Hose
1985IsuzuTrooperUpperCurved Radiator Hose
1984IsuzuPickup1.9LL4UpperCurved Radiator Hose
1984IsuzuTrooper1.9LL4UpperCurved Radiator Hose
1983IsuzuPickup1.9LL4UpperCurved Radiator Hose
1982ChevroletLUV1.8LL4UpperCurved Radiator Hose
1982IsuzuPickup1.8LL4UpperCurved Radiator Hose
1981ChevroletLUVUpperCurved Radiator Hose
1981IsuzuPickup1.8LL4UpperCurved Radiator Hose
1979BuickCentury5.7LV8Lowerw/A.C., Axial Long Body Comp.; Curved Radiator Hose
1979BuickCentury5.7LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1979BuickCentury5.0LV8Lowerw/A.C., Axial Long Body Comp.; Curved Radiator Hose
1979BuickRegal5.0LV8Lowerw/A.C., Axial Long Body Comp.; Curved Radiator Hose
1978BuickCentury5.7LV8Lowerw/A.C., Axial Long Body Comp.; Curved Radiator Hose
1978BuickCentury5.7LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1978BuickCentury5.0LV8Lowerw/A.C., Axial Long Body Comp.; Curved Radiator Hose
1978BuickRegal5.0LV8Lowerw/A.C., Axial Long Body Comp.; Curved Radiator 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:

20534S24124L

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