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Dorman 34175 A/C Compressor Bypass PulleyOE Quality 60-Day Returns
Part #: 34175

Dorman 34175 A/C Compressor Bypass Pulley

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136 vehicles fit this part
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Fitment: Chevrolet, GMC, Oldsmobile, and Isuzu, Blazer, Jimmy, S10, Sonoma, Express 1500, Express 2500, Express 3500, G30, Silverado 1500, Silverado 2500 HD, Silverado 3500, Savana 1500, Savana 2500, Savana 3500, Sierra 1500, Sierra 2500 HD, Sierra 3500, Bravada, Hombre, and C1500
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Reliable A/C Compressor Bypass Pulley for Chevrolet and GMC Vehicles

The Dorman 34175 A/C Compressor Bypass Pulley is designed to provide a durable and efficient solution for your vehicle's HVAC system. Engineered with quality materials, this pulley is compatible with various Chevrolet, GMC, Isuzu, and Oldsmobile models, ensuring proper fit and function.

  • Constructed with an aluminum bracket for strength and corrosion resistance
  • Features a plastic pulley with a 110mm outside diameter
  • Includes mounting bracket and hardware for straightforward installation
  • Compatible with serpentine belt systems
  • Installation instructions included for ease of use
  • Designed for Ltr4 compressor types
  • Package contains one pulley and bracket

Durable Materials and Precise Fitment

The Dorman 34175 bypass pulley combines an aluminum bracket with a plastic pulley to balance durability and weight. The 110mm outside diameter pulley is engineered to work seamlessly with serpentine belt systems, commonly found in Chevrolet Silverado 1500, GMC Sierra 2500 HD, and Isuzu Hombre models. This part is specifically designed for Ltr4 compressor types, ensuring compatibility and reliable operation within the HVAC system. The included mounting hardware and bracket simplify the replacement process, while the detailed installation instructions help technicians and DIY enthusiasts complete the job efficiently.

Compatible Vehicles and Applications

This A/C compressor bypass pulley is compatible with a range of vehicles, including Chevrolet Blazer, Silverado 1500, and S10; GMC Sierra 1500, Sierra 3500, and Savana 2500; Isuzu Hombre and Bravada; as well as Oldsmobile models like the Jimmy and C1500. The Dorman 34175 is designed to maintain proper belt tension and pulley alignment, which is critical for the HVAC system's performance and longevity.

Common Issues Addressed by the Bypass Pulley

  • Worn or damaged pulley causing belt slippage or noise
  • Failure of the original compressor clutch pulley affecting A/C operation
  • Corroded or weakened mounting bracket compromising pulley stability
  • Misalignment leading to premature belt wear
  • Replacement during compressor removal or bypass situations

Installation Notes and Tips

  • Verify compressor type (Ltr4) before installation to ensure compatibility
  • Use the included mounting hardware and bracket for secure fitment
  • Follow the provided installation instructions carefully to maintain proper belt tension
  • Inspect serpentine belt condition and replace if worn during installation
  • Ensure pulley alignment to prevent belt noise and premature wear

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The 34175 A/C Compressor Bypass Pulley undergoes quality checks to ensure fit and function. Installation instructions are included to support proper setup. Please refer to Dorman's warranty policy for specific coverage details.

BrandDorman
Part Number34175
Belt TypeSerpentine
Compressor TypeLtr4
Installation Instructions IncludedYes
MaterialAluminum Bracket
MaterialPlastic Pulley
Mounting Bracket IncludedYes
Mounting Hardware IncludedYes
Number of Pulleys Included1
Outside Diameter110
Package ContentsPulley and Bracket

This part fits 136 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2005ChevroletBlazerN/A
2005GMCJimmyN/A
2004ChevroletBlazerN/A
2004ChevroletS104.3LV6N/A
2004GMCJimmyN/A
2004GMCSonoma4.3LV6N/A
2003ChevroletBlazerN/A
2003ChevroletS104.3LV6N/A
2003GMCJimmyN/A
2003GMCSonoma4.3LV6N/A
2002ChevroletBlazerN/A
2002ChevroletExpress 15004.3LV6N/A
2002ChevroletExpress 15005.7LV8N/A
2002ChevroletExpress 15005.0LV8N/A
2002ChevroletExpress 25006.5LV8N/A
2002ChevroletExpress 25004.3LV6N/A
2002ChevroletExpress 25005.7LV8N/A
2002ChevroletExpress 25005.0LV8N/A
2002ChevroletExpress 35006.5LV8N/A
2002ChevroletExpress 35008.1LV8N/A
2002ChevroletExpress 35005.7LV8N/A
2002ChevroletG304.3LV6N/A
2002ChevroletS104.3LV6N/A
2002ChevroletSilverado 15004.3LV6N/A
2002ChevroletSilverado 2500 HD6.6LV8N/A
2002ChevroletSilverado 35006.6LV8N/A
2002GMCJimmyN/A
2002GMCSavana 15004.3LV6N/A
2002GMCSavana 15005.7LV8N/A
2002GMCSavana 15005.0LV8N/A
2002GMCSavana 25006.5LV8N/A
2002GMCSavana 25004.3LV6N/A
2002GMCSavana 25005.7LV8N/A
2002GMCSavana 25005.0LV8N/A
2002GMCSavana 35006.5LV8N/A
2002GMCSavana 35008.1LV8N/A
2002GMCSavana 35005.7LV8N/A
2002GMCSierra 15004.3LV6N/A
2002GMCSierra 2500 HD6.6LV8N/A
2002GMCSierra 35006.6LV8N/A
2002GMCSonoma4.3LV6N/A
2001ChevroletBlazerN/A
2001ChevroletExpress 15004.3LV6N/A
2001ChevroletExpress 15005.7LV8N/A
2001ChevroletExpress 15005.0LV8N/A
2001ChevroletExpress 25006.5LV8N/A
2001ChevroletExpress 25004.3LV6N/A
2001ChevroletExpress 25005.7LV8N/A
2001ChevroletExpress 25005.0LV8N/A
2001ChevroletExpress 35006.5LV8N/A
2001ChevroletExpress 35008.1LV8N/A
2001ChevroletExpress 35005.7LV8N/A
2001ChevroletG304.3LV6N/A
2001ChevroletS104.3LV6N/A
2001ChevroletSilverado 15004.3LV6N/A
2001ChevroletSilverado 2500 HD6.6LV8N/A
2001ChevroletSilverado 35006.6LV8N/A
2001GMCJimmyN/Aw/Compressor Type HT6
2001GMCSavana 15004.3LV6N/A
2001GMCSavana 15005.7LV8N/A
2001GMCSavana 15005.0LV8N/A
2001GMCSavana 25006.5LV8N/A
2001GMCSavana 25004.3LV6N/A
2001GMCSavana 25005.7LV8N/A
2001GMCSavana 25005.0LV8N/A
2001GMCSavana 35006.5LV8N/A
2001GMCSavana 35008.1LV8N/A
2001GMCSavana 35005.7LV8N/A
2001GMCSierra 15004.3LV6N/A
2001GMCSierra 2500 HD6.6LV8N/A
2001GMCSierra 35006.6LV8N/A
2001GMCSonoma4.3LV6N/A
2001OldsmobileBravadaN/A
2000ChevroletBlazerN/A
2000ChevroletExpress 1500N/Aw/Compressor Type HT6
2000ChevroletExpress 2500N/Aw/Compressor Type HT6
2000ChevroletExpress 3500N/Aw/Compressor Type HT6
2000ChevroletS104.3LV6N/A
2000ChevroletSilverado 15004.3LV6N/A
2000GMCJimmyN/A
2000GMCSavana 1500N/Aw/Compressor Type HT6
2000GMCSavana 2500N/Aw/Compressor Type HT6
2000GMCSavana 3500N/Aw/Compressor Type HT6
2000GMCSierra 15004.3LV6N/A
2000GMCSonoma4.3LV6N/A
2000IsuzuHombre4.3LV6N/A
2000OldsmobileBravadaN/A
1999ChevroletBlazerN/A
1999ChevroletC15004.3LV6N/A
1999ChevroletC1500N/AV6 262CID 4.3L (4300cc)
1999ChevroletExpress 1500N/A
1999ChevroletExpress 2500N/A
1999ChevroletExpress 3500N/A
1999ChevroletS104.3LV6N/A
1999ChevroletSilverado 15004.3LV6N/A
1999GMCJimmyN/A
1999GMCSavana 1500N/A
1999GMCSavana 2500N/A
1999GMCSavana 3500N/A
1999GMCSierra 15004.3LV6N/A
1999GMCSonoma4.3LV6N/A
1999IsuzuHombre4.3LV6N/A
1999OldsmobileBravadaN/A
1998ChevroletExpress 1500N/A
1998ChevroletExpress 2500N/A
1998ChevroletExpress 3500N/A
1998ChevroletS104.3LV6N/Aw/Original Compressor No. 1136521
1998GMCSavana 1500N/A
1998GMCSavana 2500N/A
1998GMCSavana 3500N/A
1998GMCSonoma4.3LV6N/Aw/Original Compressor No. 1136521
1998OldsmobileBravadaN/Aw/Original Compressor No. 1136521
1997ChevroletExpress 1500N/A
1997ChevroletExpress 2500N/A
1997ChevroletExpress 3500N/A
1997GMCSavana 1500N/A
1997GMCSavana 2500N/A
1997GMCSavana 3500N/A
1996ChevroletExpress 15004.3LV6N/A
1996ChevroletExpress 15005.0LV8N/A
1996ChevroletExpress 1500N/A
1996ChevroletExpress 25006.5LV8N/A
1996ChevroletExpress 25004.3LV6N/A
1996ChevroletExpress 25005.0LV8N/A
1996ChevroletExpress 2500N/A
1996ChevroletExpress 35006.5LV8N/A
1996ChevroletExpress 3500N/A
1996GMCSavana 15004.3LV6N/A
1996GMCSavana 15005.0LV8N/A
1996GMCSavana 1500N/A
1996GMCSavana 25006.5LV8N/A
1996GMCSavana 25004.3LV6N/A
1996GMCSavana 25005.0LV8N/A
1996GMCSavana 2500N/A
1996GMCSavana 35006.5LV8N/A
1996GMCSavana 3500N/A

* 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:

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

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