Dayco 82121GL Radiator Coolant Hose - Upper
OE Quality 60-Day Returns
Dayco

Dayco 82121GL Radiator Coolant Hose - Upper

Brand Dayco 82121GL
Position Upper
Fits —

Flex radiator hose. Built for coolant flow in a durable hose design.

Part of Dayco's Flex line for radiator hose applications.

Cross-references ACDelco 31712, CARQUEST 26513 and Euclid 107794 for the same application. See all 8.

$61.39Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $61.39
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Radiator Coolant Hose options

Dayco Flex Radiator Hose 82121GL

Dayco 82121GL is a Flex Radiator Hose for cooling system service, built for direct replacement use where a radiator coolant hose is required. It is part of Dayco’s Flex Radiator Hose line and is referenced by several aftermarket and OE-style cross numbers for the same application.

Key Features

  • Radiator coolant hose for engine cooling system routing
  • Dayco Flex Radiator Hose product line
  • Part number 82121GL for catalog lookup and ordering
  • Cross-references ACDelco 31712 and Gates 26513
  • Also referenced by CARQUEST 26513, NAPA FM127, and others

Product Details

This radiator coolant hose is used to carry coolant between engine and radiator connections in vehicles that require the Dayco 82121GL application. It is a practical replacement choice for cooling system repair on vehicles such as Chevrolet and GMC models where this hose number is listed in interchange data. The 82121GL designation helps match the correct hose during maintenance, repair, or cooling system restoration.

Dayco’s Flex Radiator Hose line is positioned for radiator hose replacement in cooling system service, with the part number 82121GL serving as the identifying reference across catalogs. This makes it easier to verify the correct hose when comparing Dayco 82121GL against interchange numbers during parts lookup.

What It Helps Address

  • Coolant leaks at a worn radiator hose
  • Cracking, hardening, or soft spots in an aging coolant hose
  • Overheating caused by restricted coolant flow through a damaged hose
  • Loss of cooling system pressure from hose deterioration
  • Replacement needs during radiator or engine cooling service

Installation Notes

Verify hose routing, diameter, and connection points against the original part before installation. Drain coolant as needed, inspect adjoining necks and clamps for wear, and confirm the hose seats fully before refilling and bleeding the cooling system. Use the vehicle’s service procedure for pressure testing after installation.

Quality Assurance

Dayco is a recognized name in belts and cooling components, and this hose is cataloged under the Dayco Flex Radiator Hose line for radiator coolant hose replacement. Cross-reference numbers include ACDelco 31712 and Gates 26513 for the same application.

Related reading

This part fits 0 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
Directly replaces or cross-references 8 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACDelco — 31712CARQUEST — 26513Euclid — 107794Galion — D68490Gates — 26513NAPA — FM127V&W — 2023HDV&W — 2033HD