A-Premium Thermostat Housing Assembly for Jeep Wrangler JK 2007–2011 3.8L V6 — OE-style Plastic Direct-Fit

The A-Premium thermostat housing assembly is a direct-fit replacement for Jeep Wrangler JK 2007–2011 3.8L V6 engines that controls coolant flow and helps maintain proper engine temperature.

Designed as an OE-style plastic housing, this assembly replaces worn or cracked thermostat housings to restore secure coolant routing and reduce leaks. It matches factory mounting points and outlet dimensions so installation is straightforward for technicians and experienced DIYers. Backed by a one-year unlimited-mile warranty from A-Premium, the part meets routine durability tests and is manufactured to consistent tolerances to fit the specified Jeep models.

How does this housing fit my Jeep Wrangler JK?

This housing is engineered to match the original equipment fit for Jeep Wrangler JK 2007–2011 with the 3.8L V6 engine. Bolt hole centers, mounting hole diameters, and outlet sizing mirror factory specifications so the component aligns without modification. Use factory gaskets or OEM-replacement seals when installing since a new gasket is not included.

• Bolt hole center-to-center: 2.35 in
• Bolt hole quantity: 2 with 0.29 in diameter
• Outlet inside diameter: 1.66 in; outlet outside diameter: 1.49 in
• Outlet tube length: 2.57 in for direct hose connection

What materials and specifications should I expect?

The housing is molded from durable automotive-grade plastic designed to resist heat cycling and coolant exposure. Its compact profile and measured dimensions provide a space-saving replacement while maintaining structural strength. Although mounting hardware and a gasket are not provided, the part’s geometry mirrors the original to accept factory fasteners and seals.

• Material: high-strength plastic
• Maximum height: 3.31 in for under-hood clearance
• Inside diameter (hose seat): 1.66 in for reliable hose fit
• Regular type housing, single outlet design

Will this part perform reliably and what testing does it pass?

A-Premium subjects this thermostat housing assembly to hardness and crush-testing protocols to verify its structural resilience under typical engine conditions. The manufacturing focus is on accurate dimensions and consistent wall thickness to reduce the risk of leaks and deformation. The part helps the cooling system maintain designed heat dissipation characteristics when paired with a functioning thermostat.

• Strict hardness and crush tests during production
• Precision-molded structure for predictable coolant routing
• Designed to work within intended engine temperature ranges
• Sold with a one-year unlimited-mile warranty from A-Premium

Who is this for? This thermostat housing is for owners and mechanics servicing Jeep Wrangler JK models (2007–2011) with the 3.8L V6 who need a dependable, direct-fit replacement housing. It is suited to routine maintenance, repair after coolant leaks, or preventive replacement when the original housing shows cracking or deformation. Choose this assembly if you want an OE-dimension part that installs using existing mounting points and hose connections, backed by a limited warranty to support peace of mind on the road.