Starter Motor Shield. Double Insulated. Heavy Duty for Racing or Extreme Use Size 7” (175mm) x 21.5” (545mm). This heavy-duty cover, is double-insulated to offer superior reduction in radiant heat transfer. HP Starter Shield™ prevents starter failure caused by excessive heat exposure. Using an HP Starter Shield™ also protects the solenoid and starter from starter heat lock. Prevents starter heat soak so you are not stranded. Easy installation, starter removal is not necessary. Made in the USA. Rated at 593⁰C Continuous and 1093⁰C Intermittent.Our HP Starter Shield™, part no. 500025, is recommended in applications where there is less than 1-inch air space between the starter and heat source.