E-Line 19-Row Stacked Plate Oil Cooler with Dual High Performance Fans | 13″ x 5.75″ x 2″ OGEN.STP.104 | Dual High Performance Fans Same Premium 19-Row Core. Add Forced Airflow. Stop Worrying About Temperatures. Everything that makes the OGEN.STP.100 a strong choice applies here — premium E-Line stacked plate construction built to the same standard as other premium coolers on the market, and the right fit for transmission, rear end, and power steering cooling. The difference is the dual high performance fans, which make this cooler effective regardless of vehicle speed, mounting location, or how little ram air reaches the cooler. If the cooler is going somewhere with limited airflow — tucked behind a bumper, mounted in a wheel well, or anywhere it won’t see consistent ram air — the fan-equipped version removes the variable entirely. The dual fans deliver a combined 630 cfm (315 cfm each), ensuring the cooler is working at full capacity whether you’re sitting in traffic or moving at speed. Engineered to withstand pressures up to 250 psi. At 13″ × 5.75″ × 2″ the core is identical to the STP.100 — compact, clean, and easy to mount in tight spaces. The dual fans add depth to the overall package but keep the footprint the same. -10 AN ORB fittings. Specs: 13″ × 5.75″ × 2″ | 19-row | BTU Rating: 27,000–37,000 | -10 AN ORB ports | Dual high performance fans, 315 cfm each (630 cfm total) | Best suited for transmission, rear end, power steering