Throttle Body Gasket 97-16 Chevy LS

The Throttle Body Gasket 97-16 Chevy LS is an OEM-specification seal that bridges the intake manifold and throttle body on all fifth and sixth-generation LS platform engines. This gasket is essential for maintaining a vacuum-tight seal at the throttle body interface, preventing unmetered air leaks that compromise idle quality, fuel mixture calibration, and engine control module (ECM) readings. Whether you're rebuilding a stock 5.3L, resurrecting a 6.0L stroker, or fine-tuning a high-boost LS swap, this MAHLE Original component ensures your fuel injection system operates as intended.

Manufactured by MAHLE Original—a Tier-1 OEM supplier to General Motors—this gasket features precision-molded elastomer construction designed to withstand continuous thermal cycling and maintain its sealing integrity across the entire 97–16 model year range. The ultra-thin profile (0.005 inches) allows for proper throttle body fitment without requiring additional spacers or adapter rings, while the exact dimensional tolerances (5 × 8 inches) ensure perfect contact against both the manifold face and throttle body flange. MAHLE's engineering guarantees consistent performance under boost, nitrous, and high-heat engine bay conditions that would compromise inferior aftermarket alternatives.

This gasket is mandatory for anyone performing throttle body removal, intake manifold gasket replacement, or carb-to-EFI conversions on LS-powered vehicles. OEM-equivalent sealing is non-negotiable in modern LS builds—a failed throttle body gasket introduces vacuum leaks that trigger check-engine codes, rough idle, and erratic fuel trim correction. Installation is straightforward: replace during any manifold-off service to avoid repeat disassembly. The minimal weight (0.065 lbs) and compact dimensions make this gasket the standard choice for professional engine builders and weekend enthusiasts alike.