HomeBelts and Cooling > Thermostat and HousingGates 34149 Engine Coolant Thermostat
Part #: 34149

Gates 34149 Engine Coolant Thermostat

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Reliable Cooling Control with Gates Heavy-Duty Thermostat 34149

The Gates Heavy-Duty Thermostat 34149 is engineered to maintain optimal engine temperature for a variety of vehicles, including popular makes and models requiring precise coolant regulation. Designed with durable materials and a Weir-stat design, this thermostat ensures consistent performance under demanding conditions.

  • Constructed from stainless steel, steel, and copper for durability and corrosion resistance
  • Heavy-duty Weir-stat design for reliable temperature control
  • Start to open temperature at 190°F (88°C) for accurate engine warm-up
  • O-ring seal type for secure sealing without gaskets
  • Valve diameter of 2.27 inches and flange thickness of 0.16 inches
  • Height from flange measures 1.6 inches, with overall height of 3.22 inches

Product Line Overview: Gates Heavy-Duty Thermostat

The Gates Heavy-Duty Thermostat line is designed to meet the rigorous demands of commercial and heavy-duty vehicles. This product line focuses on robust construction and precise temperature regulation to support engine longevity and efficiency. The 34149 thermostat exemplifies these qualities with its stainless steel, steel, and copper materials and Weir-stat design, making it suitable for vehicles requiring dependable cooling system components.

Detailed Product Description

The Gates Heavy-Duty Thermostat 34149 features a Weir-stat design that provides consistent coolant flow regulation, helping maintain engine temperature within optimal ranges. Its stainless steel, steel, and copper construction offers resistance to corrosion and wear, essential for heavy-duty applications. The thermostat opens at 190°F (88°C), ensuring the engine reaches operating temperature efficiently while preventing overheating. The O-ring seal type eliminates the need for additional gaskets, simplifying installation and reducing potential leak points. With a valve diameter of 2.27 inches and a flange thickness of 0.16 inches, this thermostat fits securely within the cooling system housing.

Common Applications and Issues Addressed

  • Prevents engine overheating by regulating coolant flow
  • Ensures timely engine warm-up for improved fuel efficiency
  • Reduces risk of coolant leaks with O-ring seal design
  • Supports heavy-duty vehicle cooling system reliability
  • Replaces faulty or worn thermostats in compatible makes and models

Installation Notes and Tips

When installing the Gates Heavy-Duty Thermostat 34149, ensure the O-ring seal is properly seated to prevent leaks. Verify the thermostat orientation matches the vehicle manufacturer’s specifications. Although no installation tool is included, standard tools for thermostat replacement are sufficient. Inspect the housing and coolant passages for debris before installation to maintain optimal flow.

Quality Assurance and Warranty

Gates manufactures the Heavy-Duty Thermostat 34149 to meet industry standards for durability and performance. The use of high-quality materials such as stainless steel, steel, and copper contributes to long service life. While specific warranty details are not provided, Gates products typically come with manufacturer-backed quality assurance to support reliable operation in heavy-duty applications.

BrandGates
Part Number34149
MaterialStainless steel, steel, copper
Sealing Flange Outside Diameter3.2
Height Between Flanges1.46
DesignWeir-stat
TypeHeavy-duty thermostat
Height3.22
Gasket Quantity0
Jiggle Pin Weep HoleNo
Seal TypeO-ring
Start to Open Temperature190
Start to Open Temperature88
Installation Tool IncludedNo
Flange Thickness.16
98102.27
98411
98520
99071.6
DesignWeir-stat
Flange Thickness (in).16
Height from Flange (in)1.6
Includes Installation ToolNo
MaterialStainless steel, steel, copper
Number of Gaskets0
Number of Jiggle Pins/Check Valves0
Number of Seals1
Valve Diameter (in)2.27

This part fits 0 vehicles. Search below:

YearMakeModelPositionNotes

* 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:

150081500928827573157831579333555034148341493531235738008380094061-804061-90431819743189474319847433665949522044973373497337461418061419075017533796406447W0371

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