Design Engineering Dei Engine Mount Heat Shield

Why Engine Mount Heat Shields Matter

Engine mounts sit in one of the most thermally hostile zones in any vehicle. Positioned near exhaust manifolds, headers, and hot pipe runs, rubber and polyurethane mounts are continuously exposed to radiant heat that accelerates wear, softens the mount compound, and eventually leads to premature failure. A properly fitted engine mount heat shield acts as a thermal barrier — deflecting radiant energy away from the mount and reducing the ambient temperature in its immediate environment. The result is a longer-lasting mount, more predictable engine positioning, and a reduction in heat-related underhood component degradation. Browse the full Engine Mount Heat Shield category to see all available options.

Design Engineering DEI: Built Around Thermal Science

Design Engineering, Inc. (DEI) has spent over 30 years engineering solutions for exactly these kinds of underhood heat problems. Founded with a mission to address power-robbing heat issues faced by racers and performance drivers, DEI has grown into one of the most recognized names in thermal management — supplying products across automotive, powersports, marine, and industrial markets worldwide.

What separates DEI in the engine mount heat shield space is the quality of the materials science behind their products. Rather than relying on stamped sheet metal alone, DEI incorporates advanced barrier materials into their shielding lineup:

• Titanium LR Technology — DEI's proprietary lava-rock fiber construction, woven in a diagonal weave for durability, features an outer layer of pulverized and stranded lava rock with a high-temperature silica-blend inner layer capable of withstanding significantly more heat than standard glass fiber.
• Stainless Steel Pad Shields — DEI's universal stainless heat shield pads are constructed from durable 306 stainless steel with a silica insulation core and welded seams for strength. The dual-layer construction withstands radiant temperatures, while integrated grommets and standoff mounting hardware create an air gap for improved cooling and heat dissipation.
• Form-A-Shield — Manufactured from dimpled aluminum bonded to a high-temperature Basalt thermal barrier material, Form-A-Shield can be shaped to fit irregular geometries around engine mounts and hard-to-reach underhood areas — a major practical advantage when factory mount configurations leave little room for rigid shields.

Application-Specific Protection for Street, Track, and Trail

DEI engine mount heat shields are engineered to fit a wide range of applications. Whether you're managing heat on a turbocharged performance build where exhaust temperatures are extreme, or simply replacing a worn factory shield on a daily driver, DEI offers solutions sized and constructed for the task. DEI's products are built for the street, track, and trail, and the majority are made in the USA — reflecting the brand's commitment to quality and performance verification.

For any build where engine mounts are in proximity to hot exhaust runners or manifolds, a DEI engine mount heat shield is one of the most cost-effective upgrades available. The protection it provides to a relatively expensive mount — and to adjacent hoses, wiring, and sensors — makes it a practical necessity rather than an optional accessory. Explore the complete lineup in our Engine Mount Heat Shield category or browse the full Design Engineering DEI catalog.