Gates 51464 lower radiator coolant hose for the 2015-2016 Chevrolet Silverado 2500 HD V8 6.6L and other vehicles carries engine coolant between the radiator and the engine. This Gates molded coolant hose is a modular assembly made with OEM-exact hose components.
- Materials engineered to resist collapse under vacuum
- Engineered to resist electrochemical degradation, the leading cause of hose failure
- EPDM tube with synthetic fiber knit reinforcement and a heat-, ozone- and chemical coolant-resistant EPDM cover
- Two branches and a female quick connector come built into the hose
- Meets SAE 20R3 EC Class D1 under 25 mm (1 in.) ID and SAE 20R4 EC Class D1 at 25 mm (1 in.) ID and over
- Temperature range: -40 °F to +257 °F (-40 °C to +125 °C)
Quick facts
- Part: Gates 51464 radiator coolant hose
- Fits: 2015-2016 Chevrolet Silverado 2500 HD V8 6.6L and other vehicles
- Position: Lower
- Material: EPDM, plastic, steel
- Condition: New
A worn hose can show as coolant drips, a cracked or swollen hose, or a soft spot you notice with the engine cool. Before you replace it, rule out a loose clamp or a leaking radiator connection, since coolant loss has more than one source. The lower position takes one hose per vehicle.
Fits
The 2015-2016 Chevrolet Silverado 2500 HD V8 6.6L, the 2015-2016 Chevrolet Silverado 3500 HD V8 6.6L and the 2015-2016 GMC Sierra 2500 HD V8 6.6L all take this hose, and so do other vehicles. If yours isn't named here, look up its year and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: Lower
- Quantity per vehicle: 1
- Centerline length: 52.41 in (1331 mm)
- End 1 inside diameter: 0.72 in (18 mm)
- End 2 inside diameter: 0.72 in (18 mm)
- End 3 inside diameter: 1.97 in
- End 4 inside diameter: 2.35 in (60 mm)
Build and materials
- Construction: molded modular hose, no spring
- Material: EPDM, plastic, steel
- Condition: New
- Country of origin: United States
In the box
One radiator coolant hose with two branches and one female quick connector.
Installation notes
- Replace the clamps each time a new coolant hose is installed.
- Do not use this hose for fuel or oil transfer.
Interchange: 27370X · F10379 · 23428265 · 84036271
This part cross-references / interchanges with the following part numbers:
27370X, F10379, 23428265, 84036271, 51464
Frequently Asked Questions
Does this Gates coolant hose fit the 2015-2016 GMC Sierra 2500 HD V8 6.6L?
Yes. Gates 51464 is a lower radiator coolant hose for the 2015-2016 GMC Sierra 2500 HD V8 6.6L, and that engine takes one.
Does this Gates radiator coolant hose come with its quick connector and branches?
Yes. This modular hose comes with two branches and a female quick connector already built in.
Is the Gates lower radiator hose molded, or does it have a spring inside?
Gates 51464 is molded and contains no spring. It has an EPDM tube, synthetic fiber knit reinforcement and an EPDM cover.
What size are the ends on the Gates 51464 coolant hose?
Ends 1 and 2 are 0.72 in (18 mm) inside diameter, end 3 is 1.97 in and end 4 is 2.35 in (60 mm). Centerline length is 52.41 in (1331 mm).
Should I replace the clamps when installing this radiator coolant hose?
Yes. Replace the clamps whenever a new coolant hose is installed. This hose is not for fuel or oil transfer.
