Dayco 73015 Radiator Coolant Hose - Lower

Dayco Curved Radiator Hose for Mitsubishi Cooling Systems

Dayco Part Number 73015 is a curved radiator coolant hose built for lower cooling-system routing on select Mitsubishi applications. It uses EPDM construction with a black finish and a protective sleeve to support durability in demanding engine-bay conditions.

Compatible With Mitsubishi Lancer and Mitsubishi Outlander lower radiator hose applications, this Dayco curved radiator hose follows the fitment and dimensional requirements needed for direct replacement service. The Dayco 73015 is specified to SAE J20R4 Class D-1 and SAE J1684 Type EC standards.

Key Features

• EPDM rubber construction for coolant-hose service
• Black finish for OE-style appearance
• Protective sleeve included for added abrasion resistance
• Single I.D. hose design
• End 1 inside diameter: 1 11/32 in.
• End 2 inside diameter: 1 11/32 in.
• End 1 outside diameter: 1 3/4 in.
• End 2 outside diameter: 1 3/4 in.
• Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications

Product Details

This curved radiator hose is engineered for lower coolant flow routing where a formed hose is required to follow the vehicle’s original path. The EPDM material is commonly used in radiator hose applications because it handles heat and coolant exposure in engine cooling systems. For buyers searching for a Dayco 73015 radiator hose for Mitsubishi Lancer or Dayco 73015 for Mitsubishi Outlander, this part matches the listed lower-position applications and hose dimensions.

Dayco’s Curved Radiator Hose line focuses on formed replacement hoses that mirror the routing needs of specific vehicles. That makes this product line a practical choice when the original hose shape matters for clearance, alignment, and proper coolant transfer.

What This Hose Helps Address

• Coolant leaks from a cracked or aged lower radiator hose
• Softening, swelling, or deterioration of the original EPDM hose
• Improper hose routing caused by a misshaped replacement
• Cooling-system service on a Mitsubishi Lancer lower hose application
• Cooling-system service on a Mitsubishi Outlander lower hose application

Installation Notes and Tips

Verify the hose shape, inside diameter, and lower-position routing against the removed part before installation. Inspect adjoining clamps, radiator necks, and coolant pipes for wear or corrosion, and confirm the hose seats fully on both ends before refilling and bleeding the cooling system. This part fits 2008-2011 Mitsubishi Lancer, lower; 2017 Mitsubishi Lancer, lower; and 2008-2013 Mitsubishi Outlander, lower.

Quality Assurance

This Dayco radiator coolant hose is manufactured to meet SAE J20R4 Class D-1 and SAE J1684 Type EC requirements, supporting consistent material and performance standards for cooling-system replacement service.