FAST DELIVERY
100% ORIGINAL AND QUALITY
EASY RETURN
- Description
- Fitment
- Warranty and Refund
- Reviews
Keep your Hyundai or Kia's cooling system running the way the engineers intended with the Motorad 635-180 Engine Coolant Thermostat. Built by an OE supplier to OEM specifications, this thermostat features a copper case and wax compound designed to respond quickly to changing coolant temperatures, helping your engine reach and maintain proper operating temperature. Its offset design and integrated air relief valve support smooth installation and consistent airflow through the cooling system, while OEM-style seals are included where applicable to help support a proper seal at installation. Covering 109 verified applications across Hyundai and Kia models from 2006-2019, including Sonata, Santa Fe, Sorento, and Genesis, this thermostat is a straightforward choice for shops and DIYers looking to replace a worn or stuck thermostat with a component built to demanding cooling system standards.
Features
- Copper case and wax compound respond quickly to coolant temperature changes for consistent engine operation
- Offset design and air relief valve support smooth installation and proper cooling system airflow
- OEM-style seals included where applicable help support a secure, leak-resistant fit
- Manufactured by an OE supplier to OEM specifications for a dependable direct-fit replacement
- Verified fitment across 109 applications for Hyundai and Kia V6/V8 engines, 2006-2019
Application Summary
2006, 2008-2009 Hyundai Sonata 3.3L 3342CC -CID V6 DOHC 24 Valve Naturally Aspirated GAS2006-2007 Hyundai Azera 3.8L 3778CC 231CID V6 DOHC 24 Valve Naturally Aspirated GAS
2006-2010 Kia Sedona 3.8L 3778CC 231CID V6 DOHC 24 Valve Naturally Aspirated GAS
2007 Kia Sorento 3.8L 3778CC 231CID V6 DOHC 24 Valve Naturally Aspirated GAS
2007, 2010 Hyundai Sonata 2.4L 2359CC -CID L4 DOHC 16 Valve Naturally Aspirated GAS
2007-2009 Kia Amanti 3.8L 3778CC 231CID V6 DOHC 24 Valve Naturally Aspirated GAS
2007-2009, 2013-2014, 2016-2018 Hyundai Santa Fe 3.3L 3342CC -CID V6 DOHC 24 Valve Naturally Aspirated GAS
2007-2010 Hyundai Entourage 3.8L 3778CC 231CID V6 DOHC 24 Valve Naturally Aspirated GAS
2007-2012 Hyundai Veracruz 3.8L 3778CC 231CID V6 DOHC 24 Valve Naturally Aspirated GAS
2008-2009, 2014-2015, 2017 Kia Sorento 3.3L 3342CC -CID V6 DOHC 24 Valve Naturally Aspirated GAS
2008-2014, 2016-2017 Hyundai Azera 3.3L 3342CC -CID V6 DOHC 24 Valve Naturally Aspirated GAS
2009-2011 Kia Borrego 3.8L 3778CC 231CID V6 DOHC 24 Valve Naturally Aspirated GAS
2009-2016 Hyundai Genesis 3.8L 3778CC 231CID V6 DOHC 24 Valve Naturally Aspirated GAS
2010 Hyundai Santa Fe 2.4L 2359CC -CID L4 DOHC 16 Valve Naturally Aspirated GAS
2010, 2015-2016 Hyundai Genesis Coupe 3.8L 3778CC 231CID V6 DOHC 24 Valve Naturally Aspirated GAS
2011 Hyundai Equus 4.6L 4627CC -CID V8 DOHC 32 Valve Naturally Aspirated GAS
2011, 2016, 2018 Kia Sorento 2.4L 2359CC -CID L4 DOHC 16 Valve Naturally Aspirated GAS
2011-2012 Hyundai Santa Fe 3.5L 3470CC -CID V6 DOHC 24 Valve Naturally Aspirated GAS
2011-2012, 2014 Kia Sedona 3.5L 3470CC -CID V6 DOHC 24 Valve Naturally Aspirated GAS
2011-2014 Hyundai Genesis Coupe 2.0L 1998CC 122CID L4 DOHC 16 Valve Turbocharged GAS
2012-2013 Hyundai Equus 5.0L 5038CC -CID V8 DOHC 32 Valve Naturally Aspirated GAS
2012-2013 Kia Sorento 3.5L 3470CC -CID V6 DOHC 24 Valve Naturally Aspirated GAS
2014-2016 Kia Cadenza 3.3L 3342CC -CID V6 DOHC 24 Valve Naturally Aspirated GAS
2014-2019 Hyundai Santa Fe XL 3.3L 3342CC -CID V6 DOHC 24 Valve Naturally Aspirated GAS
2015-2019 Kia Sedona 3.3L 3342CC -CID V6 DOHC 24 Valve Naturally Aspirated GAS
2016 Kia K900 5.0L 5038CC -CID V8 DOHC 32 Valve Naturally Aspirated GAS
2017 Kia K900 3.8L 3778CC 231CID V6 DOHC 24 Valve Naturally Aspirated GAS
Specifications
- Brand: Motorad
- Part Number: 635-180
- Part Type: Engine Coolant Thermostat
- UPC: 055644635804
- GTIN: 00055644635804
- Item Dimensions: 3.0000 x 3.0000 x 3.2500 IN
- Package Dimensions: 3.0000 x 3.0000 x 3.2500 IN
- Package Weight: 0.1700 PG
- Package Quantity: 1 EA
- Material: Steel
- Material: Copper
- Gasket or Seal Pre-Installed: Yes
- Sealing Flange Outside Diameter: 2.5
- Sealing Flange Outside Diameter: 63.50
- Height Between Flanges: 1.66
- Height Between Flanges: 42.16
- MAP Controlled: No
- Grade Type: OEM
Interchange
- CST: 63580
- Omnicraft: QRT43
- Parts Master: 56358
- Hyundai: 255003C130
- Hyundai: 255003C100
- Motorad: 635-180
- FVP Caps & Thermostats: 635-180
- Kia: 255003C130
- Kia: 255003C100
- Murray Temperature Control: 63580
- Duralast: 63580BP
- Pronto: 635-180
- Federated: 635-180
- Mighty Distributing System: 63580
- Parts Plus: P63580
- MAHLE: TX14282D
- Beck/Arnley: 143-0848
- Canadian Tire: 635-180
- Renault: 635-180
- Worldparts: 9635180
Warranty
- Warranty Duration: 12 Months
Returns
30-Day Money-Back Guarantee
We want you to be completely satisfied with your purchase! If you are not happy for any reason, you may return the item within 30 days for a refund, minus shipping fees, provided that: The part is brand new, uninstalled, and undamaged in any way.
To initiate a return, please contact us or email support@mizumoauto.com for a Return Authorization Number (RMA) and the return shipping address. Returns without an RMA number will be refused and returned to you at your expense.
Return Requirements:
- Items must be securely packed in the original manufacturer's packaging.
- All original materials must be included, such as hardware, manuals, protective caps, wrapping, and instructions.
- You must obtain and retain the tracking number for your return.
Non-Returnable Items:
- Piston rings, main bearings, and rod bearings are non-returnable if the manufacturer’s seal or shrink-wrapped plastic has been opened. No exceptions—this ensures the integrity of the parts you receive.
We are not responsible for lost or damaged returns. If your return is lost or damaged during shipping, a refund cannot be issued, as the item cannot be resold or returned to the supplier. Please file a claim directly with your shipping carrier for reimbursement.
Refunds are processed within 1-2 business days after we receive and inspect the returned item. Please allow this processing time before inquiring about your refund status.
Warranty
Mizumo Auto provides a 90-day Limited Warranty against defects in workmanship and materials under normal service conditions, effective from the original delivery date.
This warranty is non-transferable and applies only to the original purchaser. Coverage is limited to the replacement or refund of defective products.
Exclusions:
The warranty does not cover labor costs, damage resulting from accidents, misuse, alterations, or unauthorized modifications, as well as additional expenses such as towing, fluids, oils, car rentals, and any other parts not included in the original purchase.
Warranty Claims Process:
- All warranty claims must be pre-authorized and returned prepaid to Mizumo Auto for inspection and approval.
- No exchanges will be made for products that have been damaged, misused, or improperly installed. We strongly recommend professional installation.
- The buyer assumes all risk of damage resulting from improper installation.
All disputes related to transactions shall be resolved by a court of competent jurisdiction in Los Angeles County, California.
Shipping
We offer Free UPS Ground or USPS Ground Advantage shipping within the continental U.S. (48 states).
Shipping to Other Locations:
A delivery surcharge applies to shipments to: Alaska, Hawaii, Puerto Rico, U.S. territories, APO/FPO addresses, Canada, and international destinations.
Order Processing & Tracking:
- Orders are shipped Monday through Friday, excluding holidays.
- Orders placed before 3:00 PM PST will ship the same day, unless unexpected delays occur.
- A tracking number will be emailed within one business day after shipping.
If you do not receive a tracking number, please:
- Check your spam/junk folder.
- If it's not there, contact us via phone or eBay message for assistance.
International Orders:
Import duties, taxes, and brokerage fees are not included in the shipping fee. Please check with your shipping carrier and local customs office regarding any applicable fees before placing your order.









