Mahle GS33500A Fuel Injector Seal Kit

Mahle Fuel Injector Seal Kit GS33500A

Mahle GS33500A is an OEM-standard fuel injector seal kit built for reliable sealing at the injector interface. It uses fluoroelastomer O-rings and includes a fuel injector washer to support proper sealing on service work for select Chevrolet Silverado HD and GMC Sierra HD applications.

Key Features

• OEM-standard fuel injector seal kit for service repairs
• Fluoroelastomer O-rings for fuel-system sealing performance
• Includes fuel injector washer
• Pintle cap not required for this application
• Support ring not required for this application
• Mahle GS33500A for direct-fit service on listed GM trucks

Detailed Description

Mahle GS33500A is a fuel injector seal kit engineered for injector service where sealing integrity matters. Mahle supplies sealing products used by OEMs and technicians worldwide, and this kit follows an OEM-standard specification for the listed applications. It is a practical choice when servicing injector seals on 2001-2004 Chevrolet Silverado 2500 HD, 2001-2004 Chevrolet Silverado 3500, 2001-2004 GMC Sierra 2500 HD, and 2001-2004 GMC Sierra 3500. This part cross-references FEL-PRO ES73186 for the same application.

What It Helps Fix

• Fuel seepage around the injector seal area
• Hard starting caused by poor injector sealing
• Fuel odor from worn injector seals
• Injector service issues on Chevrolet Silverado 2500 HD and Silverado 3500 models
• Injector service issues on GMC Sierra 2500 HD and Sierra 3500 models

Installation Notes and Tips

Install GS33500A during injector service whenever the original seals show wear, flattening, or contamination. Clean the injector and mating surfaces before assembly, and verify the seal seats fully before returning the vehicle to service. For fitment, this part fits 2001-2004 Chevrolet Silverado 2500 HD, N/A; fits 2001-2004 Chevrolet Silverado 3500, N/A; fits 2001-2004 GMC Sierra 2500 HD, N/A; and fits 2001-2004 GMC Sierra 3500, N/A.

Quality Assurance

Mahle sealing products are used in OEM and professional repair environments, and GS33500A is built to OEM-standard requirements for the listed GM truck applications. Part number GS33500A is the reference to verify before ordering.