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Dayco 87770 Heater Hose Inlet to Thermostat

(2001-2004 Chevrolet Silverado 2500 HD; 2004 Chevrolet Silverado 3500; 2001-2004 GMC Sierra 2500 HD; 2004 GMC Sierra 3500; 1997 Ford Escort; 1997 Mercury Tracer)

Manufacturer

Picture for manufacturer Dayco

Part Number

87770
5 reviews
Sale Price

$8.36

1 left at this price

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Usually delivered within 2 days

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Product Details

The Dayco 87770 is a premium heater hose designed to connect the heater inlet to the thermostat housing in your vehicle's cooling system. This OE replacement hose delivers reliable performance and durability for demanding engine bay environments.

Key Features:

  • All EPDM (Ethylene Propylene Diene Monomer) compound construction for superior heat and chemical resistance
  • Spiral reinforcement design provides exceptional burst strength and prevents collapse under vacuum
  • Excellent resistance to heat, ozone, and coolant degradation
  • Compatible with all common coolants and coolant additives including ethylene glycol and OAT formulations
  • Precision-engineered to match OE specifications for proper fit and function

This heater hose is built to withstand the thermal cycling and pressure fluctuations of modern cooling systems, ensuring long-lasting, leak-free performance. Dayco's proven EPDM material technology resists cracking, hardening, and swelling that can compromise inferior hoses over time. Each hose is sold individually as a direct OE replacement part.

Products specifications

Fits

2001-2004 Chevrolet Silverado 2500 HD; 2004 Chevrolet Silverado 3500; 2001-2004 GMC Sierra 2500 HD; 2004 GMC Sierra 3500; 1997 Ford Escort; 1997 Mercury Tracer

Best price on the internet for my parts. Shipped out the next morning.

Very fast shipping, always great prices.

I'll admit to being skeptical at first, but the price was worth the risk. Turned out to be one of the best online transactions I've experienced. Received item 3 days after purchaseing and the best price I found. And I looked hard! A+

Rather amazing and uneventful service in this day and age. Ordered a Thule bike rack for my Nissan Murano. It was in stock (unusual for high-end specialty products), shipped the next day, and was on my doorstep in a few days (excellent for a 60 lb. large box). I'd buy anything from these people without any reservation. AND, your order is insured - completely superfluous. Oh, and did I mention, the lowest price I could find ANYWHERE, and not by a few dollars - a lot.

Great experience, fast and easy.

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