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SKU: 2026-180
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- Description
- Fitment
- Warranty and Refund
- Reviews
The Motorad 2026-180 High Flow Thermostat is built to OEM specifications and processes by an OE supplier, giving you a dependable replacement for demanding cooling systems. Its copper case and wax compound design deliver a rapid response to changing coolant temperatures, helping your engine maintain proper operating range. Stainless steel and copper construction adds strength for long-term durability, while the offset design and air relief valve support proper airflow and installation accuracy. OEM style seals are included where applicable, simplifying the replacement process. Rated to open at 180 degrees, this thermostat fits a range of 1965-1985 Cadillac and International vehicles, including Eldorado, DeVille, Fleetwood, Seville, and Cargostar models. Whether you're maintaining a classic Cadillac or a vintage International truck, this thermostat is engineered to help your cooling system perform the way it was designed to.
Features
- Copper case and wax compound provide rapid response to coolant temperature changes for consistent engine operation
- Stainless steel and copper construction adds increased strength and durability for long-term reliability
- Offset design and air relief valve support proper coolant flow and simplified installation
- OEM style seals included where applicable, helping ensure a proper fit against the housing
- Manufactured to OEM specifications and processes by an OE supplier for dependable replacement performance
Application Summary
1965-1968 International CO4000 Transtar 6.6L 6572CC 401CID V8 U/K 16 Valve Naturally Aspirated GAS1965-1968 International CO4000 Transtar 7.8L 7834CC 478CID V8 U/K 16 Valve Naturally Aspirated GAS
1965-1968 International CO4000 Transtar 9.0L 8998CC 549CID V8 U/K 16 Valve Naturally Aspirated GAS
1968-1969 Cadillac Eldorado 7.7L 7735CC 472CID V8 OHV 16 Valve Naturally Aspirated GAS
1968-1974 Cadillac Calais 7.7L 7735CC 472CID V8 OHV 16 Valve Naturally Aspirated GAS
1968-1974 Cadillac Commercial Chassis 7.7L 7735CC 472CID V8 OHV 16 Valve Naturally Aspirated GAS
1968-1974 Cadillac DeVille 7.7L 7735CC 472CID V8 OHV 16 Valve Naturally Aspirated GAS
1968-1974 Cadillac Fleetwood 7.7L 7735CC 472CID V8 OHV 16 Valve Naturally Aspirated GAS
1970-1974 Cadillac Eldorado 8.2L 8193CC 500CID V8 OHV 16 Valve Naturally Aspirated GAS
1972-1974 Cadillac Eldorado 8.2L 8195CC 500CID V8 OHV 16 Valve Naturally Aspirated GAS
1975-1976 Cadillac Calais 8.2L -CC 500CID V8 OHV 16 Valve Naturally Aspirated GAS
1975-1976 Cadillac Commercial Chassis 8.2L -CC 500CID V8 OHV 16 Valve Naturally Aspirated GAS
1975-1976 Cadillac DeVille 8.2L -CC 500CID V8 OHV 16 Valve Naturally Aspirated GAS
1975-1976 Cadillac Eldorado 8.2L -CC 500CID V8 OHV 16 Valve Naturally Aspirated GAS
1975-1976 Cadillac Fleetwood 8.2L -CC 500CID V8 OHV 16 Valve Naturally Aspirated GAS
1977-1978 Cadillac Eldorado 7.0L -CC 425CID V8 OHV 16 Valve Naturally Aspirated GAS
1977-1979 Cadillac Commercial Chassis 7.0L -CC 425CID V8 OHV 16 Valve Naturally Aspirated GAS
1977-1979 Cadillac DeVille 7.0L -CC 425CID V8 OHV 16 Valve Naturally Aspirated GAS
1977-1979 Cadillac Fleetwood 7.0L -CC 425CID V8 OHV 16 Valve Naturally Aspirated GAS
1979 Cadillac DeVille 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated DIESEL
1979 International 1724 7.3L 7310CC 446CID V8 U/K 16 Valve Naturally Aspirated GAS
1979-1981 International 1824 6.6L 6622CC 404CID V8 U/K 16 Valve Naturally Aspirated GAS
1979-1981 International 1824 7.3L 7310CC 446CID V8 U/K 16 Valve Naturally Aspirated GAS
1979-1981 International F1924 6.6L 6622CC 404CID V8 U/K 16 Valve Naturally Aspirated GAS
1979-1981 International F1924 7.3L 7310CC 446CID V8 U/K 16 Valve Naturally Aspirated GAS
1979-1982 International 1724 6.6L 6622CC 404CID V8 U/K 16 Valve Naturally Aspirated GAS
1979-1982 International 1924 S 6.6L 6622CC 404CID V8 U/K 16 Valve Naturally Aspirated GAS
1979-1982 International 1924 S 7.3L 7310CC 446CID V8 U/K 16 Valve Naturally Aspirated GAS
1980 Cadillac Seville 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1980 International 2275 9.0L 9031CC 551CID V8 U/K 16 Valve Naturally Aspirated DIESEL
1980 International S1723 6.6L -CC 404CID V8 U/K U/K Valve Naturally Aspirated GAS
1980 International S1724 6.6L -CC 404CID V8 U/K U/K Valve Naturally Aspirated GAS
1980 International S1823 6.6L -CC 404CID V8 U/K U/K Valve Naturally Aspirated GAS
1980 International S1823 7.3L -CC 446CID V8 U/K U/K Valve Naturally Aspirated GAS
1980 International S1824 6.6L -CC 404CID V8 U/K U/K Valve Naturally Aspirated GAS
1980 International S1824 7.3L -CC 446CID V8 U/K U/K Valve Naturally Aspirated GAS
1980 International S1924 6.6L -CC 404CID V8 U/K U/K Valve Naturally Aspirated GAS
1980 International S1924 7.3L -CC 446CID V8 U/K U/K Valve Naturally Aspirated GAS
1980 International S1925 6.6L -CC 404CID V8 U/K U/K Valve Naturally Aspirated GAS
1980 International S1925 7.3L -CC 446CID V8 U/K U/K Valve Naturally Aspirated GAS
1980-1981 Cadillac DeVille 6.0L -CC 368CID V8 OHV 16 Valve Naturally Aspirated GAS
1980-1981 Cadillac Eldorado 6.0L -CC 368CID V8 OHV 16 Valve Naturally Aspirated GAS
1980-1981 Cadillac Seville 6.0L -CC 368CID V8 OHV 16 Valve Naturally Aspirated GAS
1980-1981 International 1925 S 6.6L 6622CC 404CID V8 U/K 16 Valve Naturally Aspirated GAS
1980-1981 International 1925 S 7.3L 7310CC 446CID V8 U/K 16 Valve Naturally Aspirated GAS
1980-1982 International 1654 9.0L 9031CC 551CID V8 U/K 16 Valve Naturally Aspirated DIESEL
1980-1984 Cadillac Commercial Chassis 6.0L -CC 368CID V8 OHV 16 Valve Naturally Aspirated GAS
1980-1984 Cadillac Fleetwood 6.0L -CC 368CID V8 OHV 16 Valve Naturally Aspirated GAS
1980-1984 International 1754 9.0L 9031CC 551CID V8 U/K 16 Valve Naturally Aspirated DIESEL
1981-1983 International Cargostar 5.7L -CC 345CID V8 U/K U/K Valve Naturally Aspirated GAS
1981-1983 International S1853 9.0L -CC 551CID L6 U/K U/K Valve Turbocharged DIESEL
1981-1983 International S1854 9.0L -CC 551CID L6 U/K U/K Valve Turbocharged DIESEL
1981-1985 International S1754 9.0L -CC 551CID L6 U/K U/K Valve Turbocharged DIESEL
Part Numbers: 2026-180
Specifications
- Brand: Motorad
- Part Number: 2026-180
- Part Type: Engine Coolant Thermostat
- UPC: 055644202686
- GTIN: 00055644202686
- Item Dimensions: 2.2500 x 2.2500 x 2.2500 IN
- Package Dimensions: 2.2500 x 2.2500 x 2.2500 IN
- Package Weight: 0.1300 PG
- Package Quantity: 1 EA
- Material: Stainless Steel
- Material: Copper
- Gasket or Seal Pre-Installed: No
- Sealing Flange Outside Diameter: 2.12
- Sealing Flange Outside Diameter: 53.85
- Height Between Flanges: 1.24
- Height Between Flanges: 31.50
- MAP Controlled: No
- Grade Type: OEM
Interchange
- ACDelco: 12TP01D
- CST: 15458
- Parts Master: 65268
- Motorad: 2026-180
- FVP Caps & Thermostats: 2026-180
- Duralast: 15458BP
- Worldparts: 92026180
- Pep Boys: 2026-180
- Pronto: 2026-180
- Federated: 2026-180
- Mighty Distributing System: 15458
- Parts Plus: P15458
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.