DASH 8 Oil Cooler with Connections
DASH 8 Oil Cooler with Connections
DASH 8 Oil Cooler (AN8)
DASH 8 Oil Cooler (AN8): Thermal Stability & Oil Pressure Regulation for High-Performance Engines
Function and thermal relief provided by the DASH 8 oil cooler
In engines with increased power output and under high sustained thermal loads, the stock cooling system often reaches its limits. An external oil cooler with DASH 8 connections (AN8) ensures a targeted reduction in engine oil temperature by up to 40 °C. Since engine oil not only serves to lubricate but also plays a key role in heat dissipation from highly stressed components such as piston crowns, maintaining the optimal temperature range is essential.
By lowering the peak oil temperature, the viscosity of the lubricant remains stable. This prevents the lubricating film from breaking down under full load and ensures constant oil pressure. In addition, a controlled operating temperature protects the engine’s elastic seals from thermal hardening and premature wear.
Why choose the DASH 8 / AN8 connection system?
The DASH system (Dash Size / AN – Army-Navy Standard) defines standardized thread sizes and hose diameters for racing and performance-oriented vehicle construction. DASH 8 corresponds to an inner hose diameter of approximately 11.1 mm (thread: 3/4 - 16 UNF / JIC 37°).
DASH 8 Oil Cooler Kits with Thermostat Flange
The retrofit kits available at Turbo-parts.de are designed as coordinated complete systems. The centerpiece of the installation is the in-house developed oil cooler adapter flange with an integrated thermostat. This valve diverts the engine oil to the external cooler only once the defined operating temperature (e.g., 80 °C) has been reached. During the warm-up phase, the oil circulates exclusively within the engine’s internal circuit to prevent rapid wear caused by cold starts.
An overview of the system components in the DASH 8 kits:
Oil Cooler Core: Highly efficient aluminum cooling cores (plate-and-fin or bar-and-plate) in various row sizes (e.g., 13, 16, or 19 rows) with DASH 8 connections.
Thermostat Adapter Flange: Precision-machined aluminum flange for installation between the engine block and the oil filter.
Steel-braided hoses (AN8): Pre-assembled high-pressure hoses with crimped or screw-on DASH 8 fittings for leak-free connections.
Installation hardware: Includes mounting brackets and gaskets for a precise fit in the engine compartment.
Installation & Technical Support
Installing an external oil cooler requires proper placement in the airflow path as well as tension-free routing of the DASH 8 steel-braided hoses.
