My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Gates 33959 Heavy-Duty Engine Coolant Thermostat F - 180

Manufacturer

Picture for manufacturer Gates

Part Number

33959
18 reviews
Sale Price

$31.82

4 left at this price

delivery box

Usually delivered within 2 days

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Gates 33959 is a Green Stripe Heavy-Duty Engine Coolant Thermostat designed for commercial trucks, buses, tractors, and heavy equipment applications. Engineered to withstand extreme noise, vibration, and harshness conditions found in heavy-duty environments, this thermostat is calibrated to open at 180°F for precise engine temperature control.

Key Features:

  • Heavy-gauge brass and stainless steel construction for superior corrosion resistance
  • Factory-calibrated to 180°F opening temperature for accurate engine cooling
  • Jiggle pin for air venting to prevent air pockets in cooling system
  • Quality-controlled calibration ensures consistent valve response regardless of pressure changes
  • Temperature-sensitive heat motor provides smooth performance and precise engine cooling
  • Includes seal for complete installation

This OE-quality thermostat is designed for heavy-duty trucks including Freightliner, Kenworth, Peterbilt, Mack, Volvo, and many other commercial vehicle applications. The Gates Green Stripe series is built to deliver reliable performance in demanding commercial and industrial environments where cooling system failure is not an option.

Specifications: Depth from Flange: 1.15", Height from Flange: 2.19", Operating Temperature: 180°F

Cross-Reference Numbers: 30318, 501180

Products specifications

Flange Thickness (in)

.08

Type

Heavy-Duty Thermostat

Depth from Flange (in)

1.24

Flange Diameter (in)

2.86

Height from Flange (in)

2.08

Jiggle Pin

No

Number of Check Valves

0

Temperature (F)

181

Total Height (in)

3.39

Valve Diameter (in)

2.24

I won't know until the job is done

Products came on time sooner than expected

Didn’t know the Shipping and handling ahead of time! That’s important to me.

Good selection for my vehicle.

First time I've used your website - it worked out great! Thanks.

thank you for the order

Good price .easy ordering

Service was great. The Diamond Eye exhaust is high quality. 100% satisfied.

so far so good

quick and easy

So far so good. Fast, easy and no gimmicks.

just fine, appreciate your free services I am unable to tell if I am satisfied with product as of yet.. wwait till I pull all my hair out and I will tell you..

amazing

Easy to place my order and find the right parts that fit my vehicle.

Easy checkout with Amazon

nice clean site

Fast shipping and best price anywhere!

It was easy but shipping could be cheaper

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy