Muzzys

Muzzys A/C Hack Kit is an easy-to-install heater-core bypass that reduces warm-air bleed into the HVAC system on affected Ram 1500/2500/3500 trucks from 2019–2022. If your Ram's factory air conditioning blows warmer than expected, this kit addresses a common HVAC design issue without removing...

Muzzys upgraded heater core connector kit replaces worn OEM fittings with stronger nylon connectors and clamps for a reliable, leak-resistant heater hose connection. These two Muzzys 800-409 heater core connectors are designed as direct-fit upgrades for many General Motors trucks and SUVs from 1998–2014....

Durable stainless-steel heater core connector kit by Muzzys replaces worn plastic fittings and clamps on many 1998–2014 GM trucks and SUVs. If your vehicle is showing coolant leaks or the heater hoses have become loose at the firewall, this set delivers two upgraded stainless...

Muzzys Skip Shift Eliminator is a plug-in connector kit that prevents the transmission from forcing a 1→4 skip shift, restoring normal 1–2 shifting without setting a check engine light. This compact harness plugs inline at the transmission CAGS connector to block the computer-enforced 1st-to-4th...