HomeBelts and Cooling > Thermostat and HousingDorman 902-5048 Engine Coolant Thermostat Housing
Part #: 902-5048

Dorman 902-5048 Engine Coolant Thermostat Housing

N/A
⚙️ 9 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$26.68Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Honda, Prelude
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Dorman Engine Coolant Thermostat Housing 902-5048

The Dorman 902-5048 engine coolant thermostat housing is designed specifically for Honda Prelude models. Crafted from durable metal with a natural finish, this thermostat housing ensures reliable performance and proper engine temperature regulation.

  • Constructed from high-quality metal for durability
  • Includes a gasket for a secure, leak-free seal
  • Features a 1.188-inch outlet port diameter
  • Equipped with an air vent (bleeder valve) for efficient coolant flow
  • Two mounting holes with 0.313-inch diameter for secure installation
  • Housing neck angled at 30 degrees for precise fitment
  • Thermostat not included, bolts not included

Detailed Product Description

The Dorman 902-5048 thermostat housing is engineered to meet the exact specifications of Honda Prelude vehicles. Its metal construction provides strength and resistance to heat and corrosion, essential for maintaining engine cooling system integrity. The included gasket ensures a tight seal between the housing and engine block, preventing coolant leaks. The 1.188-inch outlet port diameter and 30-degree housing neck angle are designed to match the original equipment, facilitating proper coolant flow and system compatibility. Additionally, the built-in air vent (bleeder valve) helps remove trapped air from the cooling system, improving overall efficiency.

Compatible Vehicles and Common Applications

  • Compatible with Honda Prelude models requiring part number 902-5048
  • Replaces worn or damaged thermostat housings causing coolant leaks
  • Addresses overheating issues related to faulty thermostat housing seals
  • Resolves coolant flow restrictions due to cracked or corroded housings
  • Suitable for maintenance or repair of engine cooling system components

Installation Notes and Tips

When installing the Dorman 902-5048 thermostat housing on a Honda Prelude, ensure the mating surfaces are clean and free of old gasket material. Use the included gasket to prevent leaks and tighten mounting bolts evenly to the manufacturer's torque specifications. Note that bolts are not included with this part, so reuse existing hardware or source appropriate replacements. Bleed the cooling system properly to remove air pockets using the built-in air vent valve for optimal performance.

Quality Assurance and Warranty Information

Dorman manufactures this thermostat housing to meet or exceed OEM standards for fit, form, and function. The metal construction and included gasket contribute to long-lasting durability. While specific warranty details are not provided here, Dorman products typically come with a limited warranty against defects in materials and workmanship. Verify warranty terms with the product documentation or supplier.

BrandDorman
Part Number902-5048
Air Vent (Bleeder Valve)Yes
Bolts IncludedNo
ColorNatural
Gasket Or Seal IncludedYes
Housing Neck Angle (┬░)30
MaterialMetal
Mounting Hole Diameter0.313
Mounting Hole Quantity2
O Rings IncludedNot Required
Outlet Port Diameter1.188
Package ContentsThermostat Housing with Gasket
Thermostat IncludedNo

This part fits 9 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
2001HondaPrelude2.2LL4N/AEngine coolant thermostat housing for cooling system.
2000HondaPrelude2.2LL4N/AEngine coolant thermostat housing for cooling system.
1999HondaPrelude2.2LL4N/AEngine coolant thermostat housing for cooling system.
1998HondaPrelude2.2LL4N/AEngine coolant thermostat housing for cooling system.
1997HondaPrelude2.2LL4N/AEngine coolant thermostat housing for cooling system.
1996HondaPreludeVTEC2.2LL4N/AEngine coolant thermostat housing for cooling system.
1995HondaPreludeVTEC2.2LL4N/AEngine coolant thermostat housing for cooling system.
1994HondaPreludeVTEC2.2LL4N/AEngine coolant thermostat housing for cooling system.
1993HondaPreludeVTEC2.2LL4N/AEngine coolant thermostat housing for cooling system.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

19311P1300081561085212CH6048

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.