Mahle GS33579 Fuel Injection Nozzle O-Ring

Fuel Injector Sealing for OE-Style Service

The Mahle GS33579 fuel injection nozzle O-ring is an OEM Standard sealing component for fuel injector service. Built with molded rubber, it helps restore a tight seal at the injector nozzle on select Suzuki Grand Vitara, Chevrolet Tracker, and Suzuki Vitara applications.

Mahle sealing products are used by OEMs and technicians worldwide for dependable fit and sealing performance. This GS33579 O-ring set is made for direct replacement service on compatible fuel delivery systems.

Key Features

• OEM Standard fuel injection nozzle O-ring
• Molded rubber construction for sealing performance
• Designed for air and fuel delivery sealing systems
• Mahle GS33579 replacement part number
• Cross-references Monroe Shocks & Struts 91172261 and 91176153 for the same application

Detailed Description

Mahle GS33579 is a fuel injector O-ring kit engineered for sealing the injector nozzle in compatible fuel injection systems. The molded rubber material supports a secure seal where fuel system leakage, hard starting, or injector seepage can occur when the original O-ring is worn or damaged. This part is a practical OE-style service item for 1999-2005 Suzuki Grand Vitara, 2001-2004 Chevrolet Tracker, and 2004 Suzuki Vitara applications. Use GS33579 when servicing fuel injectors on these vehicles and related engine configurations that call for this sealing design.

Common Issues This Part Can Address

• Fuel seepage around the injector nozzle
• Hard starting caused by poor injector sealing
• Fuel odor from a leaking injector seal
• Rough idle related to air or fuel leakage at the injector
• Service replacement for cracked, flattened, or hardened O-rings

Installation Notes and Tips

Inspect the injector bore and nozzle surfaces before installation. Clean all sealing surfaces thoroughly and replace any O-ring that shows cuts, flattening, or hardening. Lubricate the new seal with clean engine oil or approved fuel-system lubricant during assembly to reduce damage and help the injector seat correctly. Confirm the injector and fuel rail are fully aligned before tightening.

Quality Assurance

Mahle sealing products are supplied to OEM-level standards and are trusted by technicians for fuel system service. GS33579 is built as an OEM Standard replacement sealing part for consistent fitment and dependable sealing performance.