HomeBelts and Cooling > Thermostat and HousingMotorad 1001-221 Engine Coolant Thermostat Housing Assembly
Part #: 1001-221

Motorad 1001-221 Engine Coolant Thermostat Housing Assembly

Integrated Housing Thermostat
⚙️ 3 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Integrated Housing Thermostat
🚗Fitment: Volkswagen, Phaeton
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Overview of Motorad Integrated Housing Thermostat 1001-221

The Motorad Integrated Housing Thermostat 1001-221 is engineered for precise temperature regulation in Volkswagen Phaeton engines. Designed to maintain optimal coolant flow, this thermostat housing assembly supports engine efficiency and longevity.

  • Compatible with Volkswagen Phaeton models
  • Integrated thermostat with a 221°F opening temperature
  • Constructed from durable aluminum, stainless steel, and copper materials
  • Includes a rubber gasket for reliable sealing
  • Features a bleeder hole and jiggle pin for effective air release
  • Seven bolt holes for secure mounting (bolts not included)
  • Three outlet ports with varying diameters (0.63 in, 1.32 in, 1.51 in)

Product Line: Motorad Integrated Housing Thermostat

The Integrated Housing Thermostat line by Motorad combines the thermostat and housing into a single assembly, simplifying installation and improving cooling system reliability. This design reduces potential leak points and ensures consistent temperature control, tailored specifically for applications like the Volkswagen Phaeton.

Detailed Product Description

This engine coolant thermostat housing assembly (part number 1001-221) is crafted from a combination of aluminum, stainless steel, and copper to provide strength and corrosion resistance. The integrated thermostat opens at 221 degrees Fahrenheit, allowing coolant to flow through three outlet ports of different diameters to optimize engine temperature management. The included rubber gasket ensures a tight seal, preventing leaks. Additionally, the housing features a bleeder hole and jiggle pin to facilitate air removal from the cooling system, enhancing overall performance. The assembly mounts securely with seven bolt holes; however, mounting hardware and bolts are not included.

Common Applications and Issues Addressed

  • Regulates engine temperature in Volkswagen Phaeton vehicles
  • Prevents engine overheating by controlling coolant flow
  • Eliminates coolant leaks with integrated gasket sealing
  • Reduces air pockets in the cooling system via bleeder hole and jiggle pin
  • Replaces worn or damaged thermostat housing assemblies

Installation Notes and Tips

  • Ensure the engine is cool before beginning installation
  • Use the included rubber gasket to prevent coolant leaks
  • Verify bolt hole alignment with the vehicle’s mounting points
  • Bleed the cooling system properly to remove trapped air using the bleeder hole and jiggle pin
  • Note that bolts and mounting hardware are not included and must be sourced separately

Quality Assurance

Motorad’s Integrated Housing Thermostat assemblies are manufactured to meet OEM specifications for fit and function. The use of high-quality materials such as aluminum, stainless steel, and copper ensures durability and corrosion resistance. This part is designed specifically for Volkswagen Phaeton models, providing reliable temperature control. Warranty information is available through the original manufacturer or authorized distributors.

BrandMotorad
Part Number1001-221
PositionIntegrated Housing Thermostat
Bleeder HoleYes
Bolts IncludedNo
ColorBlack, Silver
Gasket or Seal includedYes
Gasket/Seal MaterialRubber
Gasket/Seal MaterialRubber
Hardware includedNo
Installation Tool IncludedNo
Jiggle Pin IncludedYes
MaterialAluminum, Stainless Steel, Copper
Mounting Hardware IncludedNo
Number Of Bolt Holes7
Number Of Outlet Ports3
Number Of Seals1
Opening Temperature221
Outlet Diameter0.63 in, 1.32 in, 1.51 in
Start to Open Temperature221 Deg. F
Temperature221 Deg. F
Temperature (Degree)221

This part fits 3 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006VolkswagenPhaeton6.0LW12N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2005VolkswagenPhaeton6.0LW12N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2004VolkswagenPhaeton6.0LW12N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

07D121111AP1001-221101213479751010902-586991001221HT1001-221NIP10121TM9105

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.