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Mahle GS33435 Fuel Injector O-Ring KitOE Quality 60-Day Returns
Part #: GS33435

Mahle GS33435 Fuel Injector O-Ring Kit

40 vehicles fit this part
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Fitment: Chevrolet, Oldsmobile, Pontiac, Saturn, and Toyota, 4Runner, Alero, Cavalier, Classic, FJ Cruiser, Grand Am, L100, L200, L300, LW200, Sunfire, Tacoma, and Tundra
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Mahle Fuel Injector O-Ring Kit for OE-Style Sealing

The Mahle GS33435 fuel injector O-ring kit is built for OE-standard sealing performance in fuel system service. It uses fluoroelastomer O-rings, a material selected for fuel resistance and stable sealing in demanding engine environments.

Compatible with select Toyota 4Runner, FJ Cruiser, Tacoma, and Tundra applications, as well as several Chevrolet, Pontiac, Oldsmobile, and Saturn models, this kit supports precise injector sealing during maintenance or repair. Mahle GS33435 is a direct-fit service part for technicians replacing worn injector seals.

Key Features

  • Fuel injector O-ring kit for service and repair work
  • OE Standard item grade for factory-style fit and sealing
  • Fluoroelastomer O-ring material for fuel system durability
  • Mahle sealing products are used by OEMs and technicians worldwide
  • Cross-reference: FEL-PRO ES 70599
  • Cross-reference: General Motors 12574292

Detailed Description

Mahle GS33435 is an OEM-standard fuel injector O-ring kit designed to restore sealing at the injector interface. The fluoroelastomer construction helps maintain a secure seal in fuel delivery systems, where resistance to fuel exposure and heat is important. For drivers and shops servicing a 2003-2009 Toyota 4Runner, 2005-2009 Toyota Tacoma, or 2005-2009 Toyota Tundra, this part supports accurate injector resealing without changing the original fuel system layout.

This part number, GS33435, also cross-references common service applications such as FEL-PRO ES 70599 and General Motors 12574292. It is a practical choice for injector seal replacement on vehicles including the Toyota FJ Cruiser, Chevrolet Classic, Pontiac Grand Am, Oldsmobile Alero, and Saturn L-series models listed in the fitment data.

What It Helps Address

  • Fuel odor caused by leaking injector seals
  • Hard starting related to injector seal leakage
  • Fuel seepage around injector bodies
  • Idle quality issues tied to vacuum or fuel leaks at the injector seal
  • Service-time replacement of worn injector O-rings during fuel system repair

Installation Notes and Tips

Clean the injector and rail sealing surfaces before installation. Inspect the injector body and fuel rail for wear, scoring, or contamination that could affect sealing. Use proper fuel-system service procedures and verify the injector seats fully after installation. Confirm vehicle-specific fitment for the exact engine application before ordering, especially on Toyota 4Runner, Tacoma, and Tundra models with multiple engine configurations.

Quality Assurance

Mahle sealing products are trusted by OEMs and technicians around the globe. GS33435 is an OE-standard service part built for fuel injector sealing applications and consistent repair results.

BrandMahle
Part NumberGS33435
Additional Package ContentsNone
Item GradeOem standard
O-Ring MaterialFluoroelastomer
Package Quantity8

This part fits 40 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2009Toyota4Runner4.0LV6N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2009ToyotaFJ Cruiser4.0LV6N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2009ToyotaTacoma4.0LV6N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2009ToyotaTundra4.0LV6N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2008Toyota4Runner4.0LV6N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2008ToyotaFJ Cruiser4.0LV6N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2008ToyotaTacoma4.0LV6N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2008ToyotaTundra4.0LV6N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2007Toyota4Runner4.0LV6N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2007ToyotaFJ Cruiser4.0LV6N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2007ToyotaTacoma4.0LV6N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2007ToyotaTundra4.0LV6N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2006Toyota4Runner4.0LV6N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2006ToyotaTacoma4.0LV6N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2006ToyotaTundra4.0LV6N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2005ChevroletClassic2.2LL4N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2005PontiacGrand Am2.2LL4N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2005Toyota4Runner4.0LV6N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2005ToyotaTacoma4.0LV6N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2005ToyotaTundra4.0LV6N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2004ChevroletClassic2.2LL4N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2004OldsmobileAlero2.2LL4N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2004PontiacGrand Am2.2LL4N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2004SaturnL3002.2LL4N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2004Toyota4Runner4.0LV6N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2003OldsmobileAlero2.2LL4N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2003PontiacGrand Am2.2LL4N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2003SaturnL2002.2LL4N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2003SaturnLW2002.2LL4N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2003Toyota4Runner4.0LV6N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2002ChevroletCavalier2.2LL4N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2002OldsmobileAlero2.2LL4N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2002PontiacGrand Am2.2LL4N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2002PontiacSunfire2.2LL4N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2002SaturnL1002.2LL4N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2002SaturnL2002.2LL4N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2002SaturnLW2002.2LL4N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2001SaturnL1002.2LL4N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2001SaturnL2002.2LL4N/AFuel Injector O-Ring Kit fits various engine models and sizes.
2001SaturnLW2002.2LL4N/AFuel Injector O-Ring Kit fits various engine models and sizes.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

ES 70599

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

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