HomeBelts and Cooling > Thermostat and HousingMotorad 725-221 Engine Coolant Thermostat Housing Assembly - Upper
Part #: 725-221

Motorad 725-221 Engine Coolant Thermostat Housing Assembly - Upper

Integrated Housing Thermostat, Upper
⚙️ 39 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$56.75Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Integrated Housing Thermostat, Upper
🚗Fitment: Chevrolet, Pontiac, and Suzuki, Trax, Sonic, Cruze Limited, Cruze, Aveo, Aveo5, G3, G3 Wave, and Swift+
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Motorad Integrated Housing Thermostat 725-221

The Motorad Integrated Housing Thermostat 725-221 is designed for precise engine temperature regulation in select Chevrolet, Pontiac, and Suzuki models. This thermostat housing assembly ensures reliable coolant flow control, maintaining optimal engine performance and preventing overheating.

  • Engine coolant thermostat housing assembly with integrated thermostat
  • Compatible with Chevrolet Aveo, Aveo5, Cruze, Cruze Limited, Sonic, Pontiac G3, G3 Wave, and Suzuki Swift+, Trax
  • Constructed from durable aluminum, stainless steel, and copper materials
  • Silver color finish with a single outlet port of 1.33 inches diameter
  • Includes a rubber gasket/seal for secure installation
  • Operates at a precise opening temperature of 221°F
  • Features four bolt holes for secure mounting (bolts not included)

Detailed Product Description

The Motorad 725-221 thermostat housing assembly integrates the thermostat directly into the housing, streamlining the cooling system components for improved reliability. Made from a combination of aluminum, stainless steel, and copper, this assembly offers corrosion resistance and durability under high-temperature conditions. The silver finish complements the engine bay while the single outlet port with a 1.33-inch diameter ensures proper coolant flow. The thermostat opens at 221 degrees Fahrenheit, maintaining consistent engine temperature for efficient operation. The included rubber gasket provides a tight seal to prevent leaks, although mounting hardware and bolts are not included.

Integrated Housing Thermostat Product Line

The Motorad Integrated Housing Thermostat product line focuses on combining the thermostat and housing into a single assembly. This design reduces installation complexity and potential leak points compared to separate components. The 725-221 part number exemplifies this approach, offering a reliable solution for cooling system maintenance on compatible Chevrolet, Pontiac, and Suzuki vehicles.

Common Applications and Issues Addressed

  • Replacement for faulty or leaking thermostat housings in Chevrolet Aveo and Cruze models
  • Restores proper engine temperature regulation in Pontiac G3 and G3 Wave vehicles
  • Prevents engine overheating in Suzuki Swift+ and Trax by ensuring thermostat opens at correct temperature
  • Eliminates coolant leaks caused by worn or damaged seals
  • Improves cooling system efficiency by maintaining consistent coolant flow

Installation Notes and Tips

  • Ensure engine is cool before beginning installation to avoid burns
  • Use the included rubber gasket to create a proper seal; do not reuse old gaskets
  • Torque bolts evenly across the four mounting holes to manufacturer specifications (bolts not included)
  • Inspect surrounding hoses and connections for wear during installation
  • Verify thermostat operation after installation by monitoring engine temperature

Quality Assurance and Warranty

Motorad manufactures the 725-221 thermostat housing assembly to meet OEM standards for fit and function. The use of high-quality materials such as aluminum, stainless steel, and copper ensures durability and corrosion resistance. This part includes a rubber gasket for sealing integrity. While specific warranty details are not provided, Motorad products typically adhere to industry quality controls to support reliable vehicle operation.

BrandMotorad
Part Number725-221
PositionIntegrated Housing Thermostat, Upper
Bleeder HoleNo
Bolts IncludedNo
ColorSilver
Gasket or Seal includedYes
Gasket/Seal MaterialRubber
Gasket/Seal MaterialRubber
Hardware includedNo
Installation Tool IncludedNo
Jiggle Pin IncludedNo
MaterialAluminum, Stainless Steel, Copper
Mounting Hardware IncludedNo
Number Of Bolt Holes4
Number Of Outlet Ports1
Number Of Seals1
Opening Temperature221
Outlet Diameter1.33 in
Start to Open Temperature221 Deg. F
Temperature221 Deg. F
Temperature (Degree)221

This part fits 39 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2020ChevroletTrax1.8LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2019ChevroletTrax1.8LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2018ChevroletSonic1.8LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2018ChevroletTrax1.8LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2017ChevroletSonic1.8LL4UpperTemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2017ChevroletSonic1.6LL4UpperTemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2017ChevroletTrax1.8LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2016ChevroletCruze1.8LL4N/AIncludes thermostat, housing, sensor, and seal; Integrated Housing Thermostat
2016ChevroletCruze Limited1.8LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2016ChevroletSonic1.8LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2016ChevroletSonic1.6LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2016ChevroletTrax1.8LL4N/AIncludes thermostat, housing, sensor, and seal; Integrated Housing Thermostat
2015ChevroletCruze1.8LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2015ChevroletSonic1.8LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2015ChevroletSonic1.6LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2015ChevroletTrax1.8LL4N/AIncludes thermostat, housing, sensor, and seal; Integrated Housing Thermostat
2014ChevroletCruze1.8LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2014ChevroletSonic1.8LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2014ChevroletSonic1.6LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2014ChevroletTrax1.8LL4N/AIncludes thermostat, housing, sensor, and seal; Integrated Housing Thermostat
2013ChevroletCruze1.8LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2013ChevroletSonic1.8LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2013ChevroletSonic1.6LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2013ChevroletTrax1.8LL4N/AIncludes thermostat, housing, sensor, and seal; Integrated Housing Thermostat
2012ChevroletCruze1.8LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2012ChevroletSonic1.8LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2012ChevroletSonic1.6LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2011ChevroletAveo1.6LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2011ChevroletAveo51.6LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2011ChevroletCruze1.8LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2010ChevroletAveo1.6LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2010ChevroletAveo51.6LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2010ChevroletCruze1.8LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2010PontiacG31.6LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2009ChevroletAveo1.6LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2009ChevroletAveo51.6LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2009PontiacG31.6LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2009PontiacG3 Wave1.6LL4N/ATemperature rating of 221F, includes thermostat, housing, sensor, and seal, meets OE specifications.; Integrated Housing Thermostat
2009SuzukiSwift+1.6LL4N/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:

12T013F131-1834952255564891555784195559700857252725-2217252185992902-821969841049725221HT221-527P72521QRT19TM41105

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