HomeBelts and Cooling > Hoses and PipesDayco 70158 Radiator Coolant Hose
Part #: 70158

Dayco 70158 Radiator Coolant Hose

Curved Radiator Hose, Lower - Radiator To Tee
⚙️ 45 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Curved Radiator Hose, Lower - Radiator To Tee
🚗Fitment: Audi, Volkswagen, Renault, Triumph, DeSoto, and Chrysler, A3, A3 Quattro, GTI, TT Quattro, Eos, Passat, Golf, Jetta, TT, Alliance, Encore, Stag, Adventurer, Firedome, Fireflite, Imperial, New Yorker, Newport, Town & Country, and Saratoga
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Overview of Dayco Curved Radiator Hose 70158

The Dayco Curved Radiator Hose 70158 is designed to provide reliable coolant flow for select Audi, Chrysler, and Volkswagen models. Constructed from durable EPDM material, this black radiator coolant hose ensures consistent performance under typical engine operating conditions.

  • Material: EPDM for heat and chemical resistance
  • Color: Black
  • End 1 Inside Diameter: 1 1/4 inches
  • End 2 Inside Diameter: 1 1/4 inches
  • Hose Type: Single inside diameter hose
  • Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Trunk Height: 5 inches
  • Does not include heat shield or protective sleeve

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on delivering hoses with precise bends to fit specific engine layouts, reducing stress and improving coolant flow efficiency. The 70158 part is engineered to meet stringent SAE standards, ensuring compatibility and durability for vehicles requiring a curved radiator coolant hose with a 1 1/4 inch inside diameter on both ends.

Detailed Product Description

This radiator coolant hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals, making it suitable for long-term use in automotive cooling systems. The hose’s black color and single inside diameter design simplify installation and replacement. It is designed without a heat shield or protective sleeve, which is typical for applications where additional protection is not required. The hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring it meets industry requirements for coolant hoses.

Compatible Vehicles and Common Applications

  • Compatible with Audi A3 and A3 Quattro models
  • Fits Chrysler Imperial, New Yorker, Newport, and Town & Country
  • Suitable for Volkswagen Eos, Golf, GTI, Jetta, Passat, TT, and TT Quattro
  • Used in radiator coolant systems requiring a curved hose with 1 1/4 inch diameter ends
  • Addresses coolant hose wear, cracking, and leaks in specified vehicles

Installation Notes and Tips

  • Ensure the hose diameter matches the radiator and engine fittings (1 1/4 inch inside diameter)
  • Inspect surrounding components for wear before installation
  • Use proper clamps to secure the hose and prevent leaks
  • Verify hose routing to avoid kinks or contact with hot engine parts
  • Replace coolant and bleed the system after installation to prevent air pockets

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 70158 to meet SAE specifications, ensuring consistent quality and performance. While specific warranty details are not provided, Dayco products typically adhere to industry standards for durability and reliability in automotive cooling applications.

BrandDayco
Part Number70158
PositionCurved Radiator Hose, Lower - Radiator To Tee
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 Height5

This part fits 45 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersPositionNotes
2009AudiA32.0LL4Lower - Radiator To TeeCurved Radiator Hose
2009AudiA3 Quattro3.2LV6Lower - Radiator To TeeCurved Radiator Hose
2009VolkswagenGTILower - Tee To RadiatorCurved Radiator Hose
2008AudiA3 Quattro3.2LV6Lower - Radiator To TeeCurved Radiator Hose
2008AudiTT QuattroLower - Radiator To TeeCurved Radiator Hose
2008VolkswagenEos3.2LV6Lower - Radiator To TeeCurved Radiator Hose
2008VolkswagenGTILower - Tee To RadiatorCurved Radiator Hose
2008VolkswagenPassatAutomatic2.0LL4Upper - Radiator To TeeCurved Radiator Hose
2007AudiA3 Quattro3.2LV6Lower - Radiator To TeeCurved Radiator Hose
2007VolkswagenEos3.2LV6Lower - Radiator To TeeCurved Radiator Hose
2007VolkswagenPassatAutomatic2.0LL4Upper - Radiator To TeeCurved Radiator Hose
2006AudiA3 Quattro3.2LV6Lower - Radiator To TeeCurved Radiator Hose
2006VolkswagenGolfAutomatic1.8LL4Upper - Tee-1 To Tee-2Curved Radiator Hose
2006VolkswagenPassatAutomatic2.0LL4Upper - Radiator To TeeCurved Radiator Hose
2005VolkswagenGolfAutomatic1.8LL4Upper - Tee-1 To Tee-2Curved Radiator Hose
2005VolkswagenJettaAutomatic1.8LL4Upper - Tee-1 To Tee-2Curved Radiator Hose
2004AudiTTUpper - Tee-1 To Tee-2Curved Radiator Hose
2004VolkswagenGolfAutomatic1.8LL4Upper - Tee-1 To Tee-2Curved Radiator Hose
2004VolkswagenJettaAutomatic1.8LL4Upper - Tee-1 To Tee-2Curved Radiator Hose
2003VolkswagenGolf2.8LV6Lower - Radiator To TeeFitment note: without Quick Connect; Curved Radiator Hose
2003VolkswagenGolfAutomatic1.8LL4Upper - Tee-1 To Tee-2Curved Radiator Hose
2003VolkswagenJetta2.8LV6Lower - Radiator To TeeFitment note: without Quick Connect; Curved Radiator Hose
2003VolkswagenJettaAutomatic1.8LL4Upper - Tee-1 To Tee-2Curved Radiator Hose
2002VolkswagenGolf2.8LV6Lower - Radiator To TeeFitment note: without Quick Connect; Curved Radiator Hose
2002VolkswagenGolfAutomatic1.8LL4Upper - Tee-1 To Tee-2Curved Radiator Hose
2002VolkswagenJetta2.8LV6Lower - Radiator To TeeFitment note: without Quick Connect; Curved Radiator Hose
2002VolkswagenJettaAutomatic1.8LL4Upper - Tee-1 To Tee-2Curved Radiator Hose
2001VolkswagenGolf2.8LV6Lower - Radiator To TeeFitment note: without Quick Connect; Curved Radiator Hose
2001VolkswagenGolfAutomatic1.8LL4Upper - Tee-1 To Tee-2Curved Radiator Hose
2001VolkswagenJetta2.8LV6Lower - Radiator To TeeFitment note: without Quick Connect; Curved Radiator Hose
2000VolkswagenGolf2.8LV6Lower - Radiator To TeeFitment note: without Quick Connect; Curved Radiator Hose
2000VolkswagenGolfAutomatic1.8LL4Upper - Tee-1 To Tee-2Curved Radiator Hose
2000VolkswagenJetta2.8LV6Lower - Radiator To TeeFitment note: without Quick Connect; Curved Radiator Hose
1999VolkswagenJetta2.8LV6Lower - Radiator To TeeFitment note: without Quick Connect; Curved Radiator Hose
1954ChryslerImperial5.4LV8N/ACurved Radiator Hose
1954ChryslerNew Yorker5.4LV8N/ACurved Radiator Hose
1953ChryslerImperial5.4LV8N/ACurved Radiator Hose
1953ChryslerNew Yorker5.4LV8N/ACurved Radiator Hose
1953ChryslerNewport5.4LV8N/ACurved Radiator Hose
1953ChryslerTown & Country5.4LV8N/ACurved Radiator Hose
1952ChryslerImperial5.4LV8N/ACurved Radiator Hose
1952ChryslerNew YorkerN/ACurved Radiator Hose
1952ChryslerNewport5.4LV8N/ACurved Radiator Hose
1952ChryslerTown & Country5.4LV8N/ACurved Radiator Hose
1951ChryslerNew YorkerN/ACurved 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:

20260S

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