BK Racing Cobalt-Style Modified Thermostat Housing – Threaded & T-Fitted for Optimal Cooling

Stay cooler and eliminate air pockets with the BK Racing Cobalt-Style Modified Thermostat Housing — the best modified thermostat housing for GM Ecotec engines, featuring Cobalt-style outlet positioning with added provisions for temperature sending unit and heater core bypass T. This precision-modified housing gets hot water out of the head (where as capping the heater core supply traps it) improves circulation, and reduces trapped air issues — trusted for Cobalt SS, Cavalier, Ion Redline, HHR SS, Solstice GXP, Saab 9-3, and performance builds.

CNC-modified from OEM-spec parts, this housing includes a threaded port for your temp sender/gauge and a built-in T-fitting to route heater core return directly into the radiator supply line — promoting quicker warm-up, better heat dissipation, and more consistent temperatures under boost or track conditions.

Key Features:

• Cobalt-style outlet orientation for improved header/exhaust clearance
• Threaded port for temperature sending unit or gauge sensor
• Integrated T-fitting to return heater core supply to radiator supply line
• Direct bolt-on with factory thermostat, gasket, and sensors
• High-quality aluminum construction for heat resistance and durability

Performance Benefits:

• Faster removal of hot water from the cylinder head for lower peak temps
• Reduces air pocket formation and improves overall coolant flow
• Cleaner routing for heater core bypass in race or simplified setups
• Essential for header installs, high-boost cooling, or custom configurations
• Pairs perfectly with BK Racing race headers, remote adapters, and oil coolers

Compatibility & Fitment:

• GM Ecotec engines:
  • 2.0L (LSJ supercharged, LNF/LHU turbo)
  • 2.2L (L61, LAP)
  • 2.4L (LE5, LE9, LAT)
• Chevrolet Cobalt (including SS) — direct replacement
• Chevrolet Cavalier/Sunfire — ideal for header clearance upgrades
• Chevrolet HHR, Malibu; Pontiac G5/Solstice; Saturn Ion/Vue; Saab 9-3; and custom swaps
• Works with stock or performance thermostats

Installation Note: Bolt-on with factory hardware. Heater core return can be routed via T or plugged for bypass. Professional coolant bleeding recommended to eliminate air.

Proudly modified by BK Racing Inc. — Ecotec specialists providing cooling solutions trusted for reliable performance and championship durability.

Get that hot water out and stay cool — upgrade to the BK Racing Cobalt-Style Modified Thermostat Housing today!