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SKU: 4992KT
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- Description
- Fitment
- Warranty and Refund
- Reviews
The Motorad 4992KT is a complete engine coolant thermostat housing assembly built to OEM specifications for 1988-1996 Cadillac, Chevrolet, and GMC vehicles with 5.0L, 5.7L, or 6.5L diesel V8 engines. This kit takes the guesswork out of cooling system repair by including the housing, thermostat, gasket, and seal in one package, so you're not left hunting for individual components. The copper and stainless steel construction is designed to hold up under demanding cooling system conditions, while the disk-style valve and mechanical actuator open at 195°F to keep coolant flow responsive and consistent. An offset design and air relief valve support proper installation and function on applicable applications. Whether you're replacing a leaking or stuck thermostat housing on a Suburban, Blazer, C/K pickup, or Brougham, this assembly is built as a direct-fit OEM-style replacement to help restore reliable cooling system performance.
Features
- All-in-one kit includes housing, thermostat, gasket, and seal for a single-part repair
- Copper and stainless steel housing built to handle demanding cooling system conditions
- 195°F disk-type thermostat delivers consistent, precise coolant temperature regulation
- Offset design with air relief valve supports proper OEM-style installation
- Direct-fit design matches original equipment dimensions for straightforward replacement
Application Summary
1988-1989, 1994-1995 Chevrolet C1500 5.0L -CC 305CID V8 OHV 16 Valve Naturally Aspirated GAS1988-1989, 1994-1995 Chevrolet C1500 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1988-1995 Chevrolet C2500 5.0L -CC 305CID V8 OHV 16 Valve Naturally Aspirated GAS
1988-1995 Chevrolet C2500 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1988-1995 Chevrolet C35 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1988-1995 Chevrolet C3500 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1988-1995 Chevrolet K1500 5.0L -CC 305CID V8 OHV 16 Valve Naturally Aspirated GAS
1988-1995 Chevrolet K1500 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1988-1995 Chevrolet K2500 5.0L -CC 305CID V8 OHV 16 Valve Naturally Aspirated GAS
1988-1995 Chevrolet K2500 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1988-1995 Chevrolet K3500 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1988-1995 GMC C1500 5.0L -CC 305CID V8 OHV 16 Valve Naturally Aspirated GAS
1988-1995 GMC C1500 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1988-1995 GMC C2500 5.0L -CC 305CID V8 OHV 16 Valve Naturally Aspirated GAS
1988-1995 GMC C2500 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1988-1995 GMC C3500 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1988-1995 GMC K1500 5.0L -CC 305CID V8 OHV 16 Valve Naturally Aspirated GAS
1988-1995 GMC K1500 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1988-1995 GMC K2500 5.0L -CC 305CID V8 OHV 16 Valve Naturally Aspirated GAS
1988-1995 GMC K2500 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1988-1995 GMC K3500 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1989-1991 GMC Jimmy 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1989-1994 Chevrolet Blazer 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1990 Chevrolet Suburban 5.7L -CC -CID V8 U/K U/K Valve Naturally Aspirated GAS
1990-1992 Cadillac Brougham 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1990-1993 Chevrolet C1500 7.4L -CC 454CID V8 OHV 16 Valve Naturally Aspirated GAS
1991-1992 Cadillac Brougham 5.0L -CC 305CID V8 OHV 16 Valve Naturally Aspirated GAS
1991-1995 Chevrolet C3500HD 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1991-1995 GMC C3500HD 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1992 Cadillac Commercial Chassis 4.9L -CC 300CID V8 OHV 16 Valve Naturally Aspirated GAS
1992-1993 GMC G1500 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1992-1994 Chevrolet G30 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1992-1994 Chevrolet Suburban 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1992-1994 GMC G3500 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1992-1995 Chevrolet C1500 Suburban 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1992-1995 Chevrolet C2500 Suburban 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1992-1995 Chevrolet G10 5.0L -CC 305CID V8 OHV 16 Valve Naturally Aspirated GAS
1992-1995 Chevrolet G20 5.0L -CC 305CID V8 OHV 16 Valve Naturally Aspirated GAS
1992-1995 Chevrolet G20 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1992-1995 Chevrolet K1500 Suburban 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1992-1995 Chevrolet K2500 Suburban 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1992-1995 GMC C1500 Suburban 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1992-1995 GMC C2500 Suburban 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1992-1995 GMC G1500 5.0L -CC 305CID V8 OHV 16 Valve Naturally Aspirated GAS
1992-1995 GMC G2500 5.0L -CC 305CID V8 OHV 16 Valve Naturally Aspirated GAS
1992-1995 GMC G2500 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1992-1995 GMC K1500 Suburban 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1992-1995 GMC K2500 Suburban 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1992-1995 GMC P3500 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1992-1995 GMC Yukon 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1992-1996 Chevrolet P30 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1994 Chevrolet C1500 Suburban 6.5L -CC 395CID V8 OHV 16 Valve Turbocharged DIESEL
1994 Chevrolet K1500 Suburban 6.5L -CC 395CID V8 OHV 16 Valve Turbocharged DIESEL
1995 Chevrolet Silverado 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1995 Chevrolet Suburban 1500 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1995 Chevrolet Tahoe 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1995 Chevrolet W3500 Tiltmaster 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS
1995-1996 Chevrolet G30 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated CNG
1995-1996 GMC G3500 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated CNG
Part Numbers: 4992KT
Specifications
- Brand: Motorad
- Part Number: 4992KT
- Part Type: Engine Coolant Thermostat Housing Assembly
- UPC: 055644680309
- GTIN: 00055644680309
- Package Dimensions: 13.2 x 12.2 x 6.2 IN
- Package Weight: 5.91 LB
- Package Quantity: EA
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.