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    Gates 34855 Engine Coolant Thermostat
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          Gates 34855 Engine Coolant Thermostat

          SKU: 123|34855
          GATES Engine Coolant Thermostat — OE-grade replacement for reliable performance. Fits multiple makes/models such as Jeep Grand Cherokee and Ram 1500.
          0.0
          Gates
          Vehicle Specific
          Check if this part fits your vehicle.
          • $163.00
          In stock (2 items available)
          OR
          1-year warrantyAll parts covered
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          Same-day shippingOrder before 3 PM EST

          GATES 34855 Engine Coolant Thermostat

          Verify fitment before purchase — please check the Fitment section below.

          Key Specifications

          • Brand: GATES
          • Manufacturer Part Number: 34855
          • Part Type: Engine Coolant Thermostat
          • Condition: New
          • Warranty: 1 Year

          Vehicle Compatibility

          Notes: 208 Degree; OE Temperature;

          Fits select vehicle applications. Please enter your vehicle or check the Fitment section below to confirm compatibility.


          Maintain optimal engine temperature with this Gates Engine Coolant Thermostat. Engineered to regulate coolant flow and ensure efficient heat transfer, it helps protect your engine from overheating and supports consistent performance under all driving conditions.

          Why replace this part? Cooling system wear can cause overheating, coolant circulation issues, or slow engine warm-up. Replacing worn cooling components helps restore proper coolant flow and temperature regulation, protecting the engine from heat-related damage and performance loss.

          Key Features & Benefits

          • Precise coolant flow — Helps regulate engine temperature for consistent performance.
          • Durable components — Built to resist wear and maintain reliable operation over time.
          • OE-style fit — Designed to match original mounting points and specifications.
          • Supports engine protection — Helps prevent overheating and ensures proper coolant circulation.
          Product Overview

          Build Quality & Materials

          • Constructed for long-lasting performance.
          • Precision-engineered to maintain consistent coolant flow and temperature regulation.
          • Corrosion-resistant surfaces and seals help ensure reliable operation over time.

          Installation Notes

          • Drain coolant and relieve system pressure before removing pumps or thermostats.
          • Clean and inspect mating surfaces to ensure proper sealing.
          • Refill coolant and check for leaks; ensure correct thermostat operation after installation.

          Why Choose Gates?

          Gates is a global leader in power transmission and fluid transfer solutions, delivering products that help keep engines running efficiently and reliably. With a focus on precision engineering and durability, Gates components support optimal performance under real-world driving conditions.

          • Proven expertise in belts, hoses, and engine components for over a century.
          • Products engineered to meet or exceed OEM specifications.
          • Durable materials and designs validated through rigorous testing for reliability.
          • Trusted by professional technicians and enthusiasts for dependable performance.

          Gates Engineering Advantage

          Gates continually innovates to improve engine performance and component longevity. Advanced design, material selection, and testing ensure Gates products provide consistent power transfer, fluid delivery, and long-term reliability across a wide range of vehicles.

          Shipping & Warranty

          • Fast U.S. shipping from our warehouse on business days.
          • Free returns if the part does not fit or you are not satisfied (see store policy for details).
          • 1-year warranty on this part from date of purchase.
          Product Information

          Item Specifics (Technical)

          • California Proposition 65: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
          • Type: Integrated Housing Thermostat
          • Start to Open Temperature: 208 FA / 98 CE
          • Outlet Inside Diameter: 1.36 IN
          • Outlet Outside Diameter: 1.68 IN
          • Bolt Hole Quantity: 2
          • Seal Quantity: 0
          • Includes Jiggle Pin Check Valve: No
          • Jiggle Pin Check Valve Quantity: 0
          • Electric: No
          • Grade Type: OE Performance

          Interchange Part Numbers

          • 50092
          • 68211186AA
          • 68253514AA
          • 86199
          • 902-3040
          • 945-208
          Fitment

          Vehicle Compatibility

          Notes: 208 Degree; OE Temperature;

          • Jeep Gladiator
            • 2021-2022 Jeep Gladiator - Engine: 3.0L V6 DIESEL;
          • Jeep Grand Cherokee
            • 2014-2018 Jeep Grand Cherokee - Engine: 3.0L V6 DIESEL;
          • Jeep Wrangler
            • 2020-2022 Jeep Wrangler - Engine: 3.0L V6 DIESEL;
          • Ram 1500
            • 2014-2018 Ram 1500 - Engine: 3.0L V6 DIESEL;
            • 2020-2022 Ram 1500 - Engine: 3.0L V6 DIESEL;
          • Ram 1500 Classic
            • 2019 Ram 1500 Classic - Engine: 3.0L V6 DIESEL;
            • SKU
              123|34855
            • Weight
              1 lbs
            • Barcode
              0072053395730
            • Manufacturer Part #
              34855
          • Brand
            Gates
          • Manufacturer
            Gates
          • MPN
            34855
          • EAN
            0072053395730
          • Fitment Type
            Engine: 3.0L V6 DIESEL;
          • Part Type
            Engine Coolant Thermostat
          • Interchange Part Number
            50092, 68211186AA, 68253514AA, 86199, 902-3040, 945-208
          • Mfr Label
            Integrated Housing Thermostat

          Shipping Policy – DTautoparts

          We ship all orders from our U.S. warehouses with USPS, UPS, or FedEx.

          Processing Time

          • Orders placed before 3 PM EST ship the same day

          • Others ship next business day

          Transit Time

          • Standard shipping: 2–5 business days

          • Expedited shipping: 1–3 business days (optional at checkout)

          Shipping Rates

          • Free standard shipping on all orders

          • Expedited options available at checkout

          Tracking

          All orders include tracking information, emailed automatically once shipped.

          Lost Packages

          If a package is lost in transit, we will:

          • Start an investigation with the carrier

          • Resend the order or issue a full refund if confirmed lost

          Incorrect Addresses

          If the address is incorrect when the order ships:

          • Carrier may return the package

          • We can resend (buyer pays reship fee) or refund the order

          Return Policy – DTautoparts

          At DTautoparts, we want every customer to be fully satisfied with their purchase.
          If an item does not fit your vehicle or you are not fully satisfied, we offer hassle-free returns.

          Return Window

          • Returns accepted within 30 days of delivery.

          • Items must be returned in their original condition unless the item was defective or damaged on arrival.

          Free Returns

          • If the part doesn’t fit, or arrives damaged, we provide a free return shipping label.

          Customer-Responsibility Returns

          (used, installed, incorrect item ordered, changed mind)

          • Buyer pays return shipping.

          • Item must be unused, uninstalled, and in original packaging.

          Incorrect / Defective Parts

          If the part is faulty, damaged, or the wrong item was sent:

          • We will provide a free return label

          • And issue a full refund OR send a replacement

          Refund Time

          Refunds are processed within 2–3 business days after the returned item is received and inspected.

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          We accept the following payment methods:

          Accepted payment methods


          Warranty

          All parts sold by DTautoparts LLC are backed by a 1-year warranty.

          What’s Covered

          • Manufacturing defects

          • Premature failure

          • Broken components not caused by external damage

          What’s Not Covered

          • Normal wear and tear

          • Improper installation

          • Damage from accidents or abuse

          • Modified or altered parts

          How to Request a Warranty Claim

          Please contact us with:

          • Order number

          • Description of the issue

          • Photos or videos of the problem

          We will:

          • Review the claim in 24–48 hours

          • Provide a replacement or refund if approved

          • Fitment Type
            Vehicle Specific
          YearMakeModelSubmodelNotes
          2014JeepGrand CherokeeLimited (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2014JeepGrand CherokeeOverland (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2014JeepGrand CherokeeSummit (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2014Ram1500Big Horn (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2014Ram1500Laramie (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2014Ram1500Laramie Limited (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2014Ram1500Laramie Longhorn (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2014Ram1500Lone Star (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2014Ram1500Outdoorsman (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2014Ram1500SLT (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2014Ram1500Tradesman (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2015JeepGrand CherokeeLimited (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2015JeepGrand CherokeeOverland (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2015JeepGrand CherokeeSummit (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2015Ram1500Big Horn (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2015Ram1500Laramie (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2015Ram1500Laramie Limited (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2015Ram1500Laramie Longhorn (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2015Ram1500Limited (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2015Ram1500Lone Star (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2015Ram1500Outdoorsman (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2015Ram1500SLT (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2015Ram1500Tradesman (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2016JeepGrand CherokeeLimited (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2016JeepGrand CherokeeOverland (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2016JeepGrand CherokeeSummit (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2016Ram1500Big Horn (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2016Ram1500HFE (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2016Ram1500Laramie (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2016Ram1500Laramie Longhorn (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2016Ram1500Limited (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2016Ram1500Lone Star (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2016Ram1500Outdoorsman (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2016Ram1500SLT (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2016Ram1500Tradesman (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2017JeepGrand CherokeeLimited (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2017JeepGrand CherokeeOverland (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2017JeepGrand CherokeeSummit (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2017JeepGrand CherokeeTrailhawk (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2017Ram1500Big Horn (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2017Ram1500HFE (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2017Ram1500Laramie (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2017Ram1500Laramie Longhorn (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2017Ram1500Limited (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2017Ram1500Lone Star (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2017Ram1500SLT (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2017Ram1500Tradesman (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2018JeepGrand CherokeeHigh Altitude (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2018JeepGrand CherokeeLimited (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2018JeepGrand CherokeeOverland (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2018JeepGrand CherokeeSummit (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2018JeepGrand CherokeeTrailhawk (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2018Ram1500Big Horn (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2018Ram1500HFE (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2018Ram1500Laramie (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2018Ram1500Laramie Longhorn (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2018Ram1500Limited (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2018Ram1500Lone Star (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2018Ram1500SLT (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2018Ram1500Sport (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2018Ram1500Tradesman (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2019Ram1500 ClassicLaramie (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2019Ram1500 ClassicSLT (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2019Ram1500 ClassicTradesman (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2020JeepWranglerUnlimited Rubicon (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2020JeepWranglerUnlimited Sahara (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2020JeepWranglerUnlimited Sport (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2020JeepWranglerUnlimited Sport S (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2020Ram1500Big Horn (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2020Ram1500Laramie (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2020Ram1500Laramie Longhorn (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2020Ram1500Limited (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2020Ram1500Lone Star (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2020Ram1500Rebel (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2020Ram1500Tradesman (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2021JeepGladiator80th Anniversary (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2021JeepGladiatorHigh Altitude (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2021JeepGladiatorOverland (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2021JeepGladiatorRubicon (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2021JeepGladiatorSport (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2021JeepGladiatorSport S (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2021JeepGladiatorTexas Trail (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2021JeepGladiatorWillys (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2021JeepGladiatorWillys Sport (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2021JeepWranglerUnlimited 80th Anniversary (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2021JeepWranglerUnlimited Freedom (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2021JeepWranglerUnlimited High Altitude (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2021JeepWranglerUnlimited Islander (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2021JeepWranglerUnlimited Rubicon (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2021JeepWranglerUnlimited Sahara (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2021JeepWranglerUnlimited Sahara Altitude (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2021JeepWranglerUnlimited Sport (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2021JeepWranglerUnlimited Sport Altitude (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2021JeepWranglerUnlimited Sport S (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2021JeepWranglerUnlimited Willys (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2021JeepWranglerUnlimited Willys Sport (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2021Ram1500Big Horn (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2021Ram1500Laramie (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2021Ram1500Laramie Longhorn (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          2021Ram1500Limited (3.0L V6 DIESEL Turbocharged)208 Degree; OE Temperature;
          There are more vehicles this part is compatible with. Check if it fits your vehicle.

          Frequently Asked Questions

          Does this part fit my vehicle?

          Use the Year/Make/Model selector at the top of the page.
          If unsure, contact us — we respond within minutes.

          Is this part new or used?

          All parts are brand-new, factory-fresh, and never used.

          Does this include hardware?

          If included, it will appear in the product images or description.
          If not listed, assume hardware is not included.

          What if the part doesn’t fit?

          No problem — we offer free returns on items that do not fit your vehicle.

          What warranty does this part come with?

          Every part includes a 1-year warranty.

          How fast do you ship?

          Orders before 3 PM EST ship the same day.