Rein CHR0721 Radiator Coolant Hose - Upper

Brand Rein CHR0721
Position Upper
Application Type Applicationspecific
Bullet Point 1 Reduces installation time.
Bullet Point 2 No cutting, refitting or adjusting the hose.
Bullet Point 3 Prevents leaks and comebacks from reusing old quick connectors an
Bullet Point 4 Resistant to heat, salt, road debris, oil and other contaminants.
Color Black
Container Type Bg
Country of Origin Tr
Heat Shield Inc No
Hose Type Single
Item Height 3.0000
Item Length 19.0000
Item Level GTIN 888544108921
Item Qty 1
Item Quantity Size 1
Item Quantity Size UOM Ea
Item UOM Ea
Item Weight Unit UOM Lb
Item Width 7.0000
Product Desc Extended 240 Rein oe quality radiator hoses are designed to be direct replacem
Product Desc Invoice 40 Rein radiator hose
Product Desc Long 80 Rein oe quality radiator hose
Product Desc Short 20 Radiator hose
Protective Shield Inc No
Warranty Distance 24000
Warranty Time 24
Fits Mercedes-Benz · 15 vehicles

OE direct replacement. Matches OE hoses and assemblies for a straightforward install.

Thermoplastic quick connects. Built to match the original fittings and branch shape.

Heat and debris resistant. Stands up to salt, oil, road debris, and other contaminants.

Cross-references 1645010682 for the same application. See all 1.

$48.80Free 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 β€” free returns if it doesn't
Step 2 — Quantity
Order total $48.80
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

OE Radiator Hose for Mercedes-Benz Upper Cooling Service

The Rein CHR0721 radiator coolant hose is an OE-quality replacement for select Mercedes-Benz upper cooling system applications. It is built to match the original hose shape and branch sizing, with thermoplastic quick-connect fittings that support a direct replacement installation on the specified vehicles.

  • Direct replacement for OE radiator hose assemblies
  • Reduces installation time
  • No cutting, refitting, or adjusting the hose
  • Helps prevent leaks and repeat repairs from reused quick connectors and O-rings
  • Resistant to heat, salt, road debris, oil, and other contaminants
  • Black single-hose construction

Fitment and Application Details

Compatible with 2007-2012 Mercedes-Benz GL450, upper; 2008-2012 Mercedes-Benz GL550, upper; and 2008-2011 Mercedes-Benz ML550, upper. The Rein CHR0721 is shaped for the original routing and connection points, making it a practical choice when replacing a worn upper radiator coolant hose on these Mercedes-Benz models.

This part cross-references Mercedes-Benz OE number 1645010682 for the same application.

Common Cooling System Issues It Can Address

  • Coolant seepage at aged hose connections
  • Cracked or softened hose material from heat cycling
  • Leaks caused by worn quick-connect fittings or O-rings
  • Fitment problems from trimming or adapting a universal hose
  • Repeat cooling system repairs after reusing old connectors

Installation Notes

Verify the vehicle application and upper hose routing before installation. Because this hose is application-specific, it is designed to install without cutting or refitting the hose. Inspect mating surfaces, quick connectors, and sealing points during service so the replacement can seat correctly and maintain a proper seal.

Quality Assurance

Rein Automotive OE-quality hoses are built to match original equipment dimensions and connector style for European vehicles. Part number CHR0721 is backed by a 24-month or 24,000-mile warranty.

This part fits 15 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2012Mercedes-BenzGL4504.7LV8Upper—
2012Mercedes-BenzGL5505.5LV8Upper—
2011Mercedes-BenzGL4504.7LV8Upper—
2011Mercedes-BenzGL5505.5LV8Upper—
2011Mercedes-BenzML5505.5LV8Upper—
2010Mercedes-BenzGL4504.7LV8Upper—
2010Mercedes-BenzGL5505.5LV8Upper—
2010Mercedes-BenzML5505.5LV8Upper—
2009Mercedes-BenzGL4504.7LV8Upper—
2009Mercedes-BenzGL5505.5LV8Upper—
2009Mercedes-BenzML5505.5LV8Upper—
2008Mercedes-BenzGL4504.7LV8Upper—
2008Mercedes-BenzGL5505.5LV8Upper—
2008Mercedes-BenzML5505.5LV8Upper—
2007Mercedes-BenzGL4504.7LV8Upper—
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
1645010682