Billet Firewall Coolant HVAC Fitting | 203830399664 The Failures occur simply for

The Failures occur simply for the fact that the OEM fitting is made from plastic that becomes brittle with age and heat cycling

there is a very commonly used solution to the problem (used by professional race car drivers over the past 30+ years) that our competitors will not tell you

"  We do not support removing or tampering with emissions devices or in factory vehicles

this connects the Engine Block to the Heater Core and small port to The Washer Fluid Heater

used to connect the Clutch Master Cylinder to Clutch Slave Cylinder on most Benz Manual transmission applications

Billet Firewall Coolant HVAC Fitting | 203830399664 The Failures occur simply forThis HVAC fitting is a very Common Failure point on many M112 113 V6 V8 W203 and W209 Chassis among others, this connects the Engine Block to the Heater Core and small port to The Washer Fluid Heater. The Failures occur simply for the fact that the OEM fitting is made from plastic that becomes brittle with age and heat cycling. Resulting in coolant loss directly into the windshield cowl area and possible overheating. To correct this, we designed this