Mercedes Sprinter Oil Cooler Upgrade Kit – Insane Diesel

Insane Diesel Oil Cooler Upgrade Kit — Cool Your Oil, Protect Your Engine

Upgrade your engine’s thermal management with the Insane Diesel Oil Cooler Upgrade Kit, engineered to reduce oil temps by 30–40 °F and improve overall performance and longevity.  Designed for use with any EXTREME bypass oil filter system, this cooler kit delivers serious protection under heavy loads, hot climates, or demanding duty cycles.

Performance & Protection Benefits

• Lower oil temperature: Reduces heat stress on oil, preserving viscosity and protecting seals and gaskets

• Extended oil health: Cooler oil slows degradation and oxidation, delivering cleaner protection between services

• Better engine durability: Reduces wear on turbo, bearings, and internal parts by minimizing thermal stress

• Seamless integration: Works in tandem with your existing bypass filter system to maintain optimum filtration and cooling

What’s Included

• Row-stacked plate cooler (13" × 5.75" × 2") with dual fans

• 180-degree thermostat with relay

• Two hose adapters (AN06-06FJ90 + EP6JF)

• 10 ft of 3⁄8" braided nylon hose (cut to fit)

• All necessary mounting hardware

• Compact design (5.7" × 13" × 2") for flexible mounting

Installation & Use

Mount the cooler in a high airflow location (e.g. ahead of radiator or behind grille). Connect to your bypass return line so oil flows through the cooler before returning to sump. The kit includes thermostat control to ensure operation only when needed. It's recommended to review Insane Diesel’s installation guides for detailed steps.