2005 GMC Sierra 2500HD Thermostats

26 products listed as compatible with this vehicle by the retailer feed.

• All 2005 parts
• Coolant Hoses
• Cooling Gaskets
• Cooling Fans
• Water Pumps
• Radiators

• 

  Dorman Thermostat Bypass Pipe, 902-901

  DormanMPN 902-901New

  Out of stock

  $55.99$25.75

  Listed as compatible with this vehicle by the retailer feed.

  Check price
• 

  Carquest Standard Thermostat: With Seal, 160 Degrees, 267-160

  Carquest PremiumMPN 267-160New

  Out of stock

  $14.99

  Listed as compatible with this vehicle by the retailer feed.

  Check price

This site contains affiliate links. We may earn a commission if you buy through them. We do not sell these products or guarantee merchant inventory. Compatibility is listed by the retailer feed for this vehicle; it is not an OEM confirmation. Catalog snapshot: Aug 15, 2026.