Carbbia 807252Q5 Thermostat Kit 160° for Mercruiser & GM Engines – 1987+

Engineered for Mercruiser GM cooling needs

Upgrade your boat’s cooling reliability with CARBBIA’s 807252Q5 Thermostat Kit. This all‑in‑one package is designed for GM‑based cooling systems and Mercruiser V6 and V8 applications from 1987 onward. The centerpiece is a 160‑degree thermostat that works with standard cooling loops, helping you maintain a steady temperature range under varied conditions—from calm lakes to long runs in warm climates. The kit emphasizes durable gaskets and a protective plastic sleeve to support accurate assembly, seal integrity, and clean reinstall when replacing worn components. It’s a practical, ready‑to‑install solution that respects your engine’s cooling rhythm without making guarantees about performance in every scenario.

What’s included

• 1 x 160 Degree Thermostat (Merc Part # 808252) 8M0109441
• 1 x Cover Gasket (Merc # 27-48818-1)
• 1 x Plastic Sleeve (Merc # 23-806922)
• 1 x Cover Gasket (Merc # 27-33179-2)
• 1 x Cover Gasket (Merc # 27-47510)
• 1 x Housing Gasket (Merc # 27-53045-1)

Key benefits at a glance

• Broad compatibility: Mercruiser V6/V8 engines from 1987 onward and GM engines within the listed range
• 160‑degree thermostat: helps regulate engine temperature within typical cooling system parameters
• Comprehensive gasket set: supports reliable seals across critical interfaces
• Plastic sleeve included: aids assembly alignment and protection during installation

Why choose this CARBBIA kit?

Designed for ease of installation and cross‑brand compatibility, this kit offers a practical, ready‑to‑use solution for maintaining cooling system integrity. The included parts come from trusted suppliers and reflect the core components you’d expect in a complete thermostat kit. While actual performance can vary with hull configuration and operating conditions, the kit is positioned to support straightforward replacement when older parts show wear.

Installation tips

Ensure the engine is cool and the cooling system depressurized before starting. Inspect gasket surfaces for damage, clean mating faces, and verify part numbers match your model. Follow standard torque specs and recheck for leaks after the first run.