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Gates® 33963 Engine Coolant Thermostat

Manufacturer #33963

Gates® 33963 Engine Coolant Thermostat

Manufacturer #33963

$14.58

~~$20.41~~

Save $5.83 (29%)

(73) In Stock

Get it between Wed, Aug 20 - Fri, Aug 22, 2025

E.P.A. Compliant Converters are not legal for sale or use in California or Colorado. Restrictions apply in New York and Maine.

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SKU	ZO33963
Brand	Gates®
Part Name	Engine Coolant Thermostat
Part	# 33963
Quantity Per Vehicle	1
Pack of	1
Condition	New

+ Chevrolet
+ Gmc
+ Saab
+ Workhorse

Green Stripe Heavy-Duty Engine Coolant Thermostat
Heavy-gauge brass and stainless steel construction for corrosion resistance
Green Stripe Heavy-Duty Thermostats are designed to withstand noise, vibration, and harshness found under the hood on heavy-duty truck, bus, tractors and heavy equipment applications.
Quality-controlled factory calibration assures accuracy of opening and closing, regardless of pressure changes
Temperature sensitive heat motor provides consistent valve response for smooth performance and precise engine cooling
Jiggle pins for air venting, seals and gaskets make these thermostats equivalent to the original equipment parts

California Proposition 65	Warning: cancer and reproductive harm - www.p65warnings.ca.gov.
Type	Heavy-duty thermostat
Start to Open Temperature (FA)	187
Start to Open Temperature (CE)	86
Design	Bottom by-pass
Material	Steel, brass, copper
Height (IN)	2.7
Sealing Flange Outside Diameter (IN)	2.13
Bypass Flange Diameter (IN)	1.58
Flange Height (IN)	.9
Height Between Flanges (IN)	1.8
Jiggle Pin Weep Hole	Yes
Jiggle Pin Check Valve Quantity	1
Gasket Quantity	0
Seal Quantity	1
Seal Type	O-ring
Installation Tool Included	No

Shipping Policy

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Return Policy

We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund.

Warranty Policy

Right parts, guaranteed. If you find any defects, simply notify us within the warranty period, and we’ll take care of it. Check out our Warranty Policy for more details.