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33009S Thermostat

You Save : $16.64 (57%)
List Price : $29.13
Manufacturer #33009S
( Reviews)
Questions, Answers
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Quantity Sold:
Sold individually
Lifetime Gates limited warranty
Anticipated Ship Out Time:
Same day - 1 business day
Stainless Steel
Opening Temperature Rating:
195 degrees
Recommended Use:
OE Replacement
Gates OE Replacement

Vehicle Fitment Information

Vehicle Name
Fitment Information
1933-1935 Buick Series 50
8 Cyl 3.8L
GAS, 195 Degree
1933 Buick Series 60
8 Cyl 4.5L
GAS, 195 Degree
1933 Buick Series 80
8 Cyl 5.6L
GAS, 195 Degree
1933-1935 Buick Series 90
8 Cyl 5.6L
GAS, 195 Degree
1934-1935 Buick Series 40
8 Cyl 3.8L
GAS, 195 Degree
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Product Information


Backed by a manufacturer globally recognized for their meticulously crafted critical components and service solutions, Gates' OE replacement thermostats are guaranteed to deliver a perfect fit as well as reliable, enduring performance. Established in 1911, Gates is a leading automotive aftermarket manufacturer that specializes in belt drive, timing, fuel and cooling systems.

  • Made by prestigious manufacturer of critical power transmission and related components
  • Simple to install
  • Meticulously formed for perfect fitment and functionality
  • Durably crafted for enduring performance
Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 90 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy 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. Check out our Return Policy for more details.

Question and Answer

How do I know it's the thermostat that water   coolantis dripping out of the car?Jeff G.Jan 14, 2021
Best Answer:Hello! The best way is to use a pressure tester to be able to identify where leaks are coming from.
Mitchell D.STAFFJan 14, 2021
My thermostat is 63mm, due u have this thermostat for 1970 Ford f100 5.9 I have seen that was 54mm my thermostat is 63mm. ?LAWRENCE W.Mar 16, 2021
Best Answer:Hi Lawrence, You can reach our Sales Team at 1-866-529-0412 or chat with them thru the link below: <a href="" target="_blank"></a>
Arnel E.STAFFMar 16, 2021
does it come with gasket? Nov 04, 2020
Best Answer:Hi, No, the gasket is not included. It is sold separately, or you can check under the year, make, and model of the vehicle, if we offer a set with the gasket.
Grace G.STAFFNov 04, 2020

Customer Reviews

Sep 03, 2020
Does not fit F Code 5L GM block
Even though advertised as a "Direct Fit" the part was a smaller diameter (48mm compared to the 54mm original) and about 1/8th inch too tall for my application. It may fit an E code throttle body engine but not my 1991 F code fuel injected engine. Returning for refund.
Purchased on Dec 07, 2017
Jul 26, 2020
Never received
Rashaan Martin
Purchased on Jul 09, 2020
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