Are you prepping injector service on your Powerstroke and want leak‑free sealing at every injector? The MAHLE GS34039 Fuel Injector O‑Ring Kit is designed to replace worn O‑rings and sealing components on your injectors, helping prevent fuel or air leaks that can cause rough idle, rail pressure loss, hard starts, or premature wear. Built to OE standards, this injector seal kit ensures a tight seal where the injector meets the fuel rail and cylinder head, a key factor in maintaining consistent fuel delivery and clean combustion. Perfect for diesel owners performing maintenance, repairs, or performance builds, this kit helps keep your fuel system operating reliably under high pressure and heat.

Manufactured using high‑temperature fluoroelastomer materials, the MAHLE GS34039 is engineered to withstand the extreme heat, pressure, and chemical exposure common in modern diesel common‑rail fuel systems. The precision‑formed O‑rings and seals compress evenly during installation to create a reliable barrier against leaks, helping maintain proper fuel pressure and injector performance. Designed as a direct‑fit replacement for 6.7L Ford Power Stroke applications. Simple to install with factory mounting locations and built to meet or exceed original equipment specifications, the GS34039 helps ensure long‑term sealing reliability for your diesel injectors.