Oil Filter Heat Shield 4 Pack 4in-5in x 12in

The Oil Filter Heat Shield 4 Pack 4in-5in x 12in from THERMO-TEC is designed to protect engine compartments from excessive heat radiated by oil filters during high-performance driving and extended operation. This universal thermal management solution is engineered for mechanics, engine builders, and automotive enthusiasts who need reliable underhood heat control. The four-piece set ensures comprehensive coverage across multiple filter locations or allows for vehicle fleet applications, making it an economical choice for shops and serious DIY builders.

Each shield measures 4 to 5 inches in diameter and 12 inches in length, accommodating standard automotive oil filter housings while allowing airflow for cooling efficiency. Constructed from aluminized fiberglass, the material reflects radiant heat away from sensitive engine bay components—fuel lines, wiring harnesses, and intake manifolds—without adding significant weight at just 0.2 lbs per unit. The silver reflective finish maximizes thermal emissivity, reducing underhood temperatures by up to 50 degrees in active cooling zones and preventing heat-related failures in tightly packaged engine compartments or turbo-equipped vehicles.

These shields benefit street rodders, drag racers, off-road competitors, and high-horsepower street machines where temperature management directly impacts reliability and longevity. Installation is straightforward—the flexible fiberglass wraps securely around standard and oversized filters with no modifications required. The universal design fits both spin-on and cartridge-style filters measuring 4–5 inches in outer diameter, making them compatible with most domestic and imported vehicles. For engine bays prone to heat soak or where auxiliary cooling systems are space-constrained, this four-pack delivers professional-grade thermal protection at contractor-friendly pricing.