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Dorman 594-121 Engine Harmonic BalancerOE Quality 60-Day Returns
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Part #: 594-121

Dorman 594-121 Engine Harmonic Balancer

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⚙️ 158 vehicles fit this part
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🚗Fitment: Workhorse, Chevrolet, GMC, and Cadillac, FasTrack FT1261, FasTrack FT1461, FasTrack FT1601, P30, FasTrack FT1061, FasTrack FT1801, FasTrack FT1802, Express 1500, Express 2500, Express 3500, Savana 1500, Savana 2500, Savana 3500, FasTrack FT1460, FasTrack FT1260, FasTrack FT1600, FasTrack FT1800, Escalade, C2500, C35, C3500, K2500, K3500, Silverado 2500, Tahoe, Yukon, C1500, C1500 Suburban, C2500 Suburban, K1500, K1500 Suburban, K2500 Suburban, and P3500
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Overview of Dorman Engine Harmonic Balancer 594-121

The Dorman 594-121 engine harmonic balancer is designed for reliable performance in select Cadillac, Chevrolet, and GMC vehicles. This component helps reduce engine vibration and maintain smooth operation for models such as the Silverado 2500, Tahoe, and Escalade.

  • Grade Type: Regular
  • Mounting Hole Quantity: 1
  • Drive Belt Type: Serpentine
  • Bolt and Washer Included for easy installation
  • Color/Finish: Black
  • Degree Markings for precise alignment
  • Package Contents: Balancer, woodruff key, instruction sheet

Detailed Product Description

The Dorman 594-121 engine harmonic balancer is engineered to meet the specifications required for various heavy-duty and passenger vehicles from Cadillac, Chevrolet, and GMC. Featuring a single mounting hole and designed for serpentine drive belts, this balancer ensures proper engine timing and reduces torsional vibration. The black finish provides corrosion resistance, while the included degree markings assist in accurate installation and alignment. The package includes a woodruff key and an instruction sheet to facilitate a straightforward replacement process.

Compatible Vehicles and Applications

This harmonic balancer is compatible with a range of models including the Chevrolet C1500, C2500, C3500, Silverado 2500, Tahoe, and GMC Yukon, as well as Cadillac Escalade and various Express and Savana series vans. It is specifically designed to work with engines requiring a serpentine belt drive system and a single mounting hole configuration.

Common Issues Addressed by This Harmonic Balancer

  • Engine vibration and noise caused by worn or damaged balancers
  • Misalignment of the crankshaft pulley affecting belt tension
  • Premature wear of serpentine belts due to imbalance
  • Engine timing inconsistencies impacting performance
  • Potential damage to crankshaft and related components

Installation Notes and Tips

Installation of the Dorman 594-121 harmonic balancer requires proper alignment using the degree markings provided. The included bolt and washer simplify mounting, and the woodruff key ensures secure positioning on the crankshaft. It is recommended to follow the instruction sheet carefully and verify belt tension after installation. Professional installation is advised for optimal results.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards. The 594-121 harmonic balancer undergoes rigorous quality control to ensure durability and fitment accuracy. This product includes a limited warranty covering defects in material and workmanship, providing confidence in its long-term reliability.

BrandDorman
Part Number594-121
Bolt And Washer IncludedYes
Color/FinishBlack
Degree MarkingsYes
Drive Belt TypeSerpentine
Grade TypeRegular
Mounting Hole Quantity1
Package ContentsBalancer; Woodruff Key; Instruction Sheet

This part fits 158 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2002ChevroletExpress 15005.7LV8N/A
2002ChevroletExpress 25005.7LV8N/A
2002ChevroletExpress 35005.7LV8N/A
2002ChevroletP305.7LV8N/A
2002GMCSavana 15005.7LV8N/A
2002GMCSavana 25005.7LV8N/A
2002GMCSavana 35005.7LV8N/A
2001ChevroletExpress 15005.7LV8N/A
2001ChevroletExpress 25005.7LV8N/A
2001ChevroletExpress 35005.7LV8N/A
2001GMCSavana 15005.7LV8N/A
2001GMCSavana 25005.7LV8N/A
2001GMCSavana 35005.7LV8N/A
2000CadillacEscalade5.7LV8N/A
2000ChevroletC2500N/AV8 350CID 5.7L
2000ChevroletC25005.7LV8N/A
2000ChevroletC355.7LV8N/A
2000ChevroletC35005.7LV8N/A
2000ChevroletExpress 15005.7LV8N/A
2000ChevroletExpress 25005.7LV8N/A
2000ChevroletExpress 35005.7LV8N/A
2000ChevroletK25005.7LV8N/A
2000ChevroletK35005.7LV8N/A
2000ChevroletSilverado 25005.7LV8N/A
2000ChevroletTahoe5.7LV8N/A
2000GMCC25005.7LV8N/A
2000GMCC35005.7LV8N/A
2000GMCK25005.7LV8N/A
2000GMCK35005.7LV8N/A
2000GMCSavana 15005.7LV8N/A
2000GMCSavana 25005.7LV8N/A
2000GMCSavana 35005.7LV8N/A
2000GMCYukon5.7LV8N/A
1999CadillacEscalade5.7LV8N/A
1999ChevroletC15005.7LV8N/A
1999ChevroletC1500 Suburban5.7LV8N/A
1999ChevroletC25005.7LV8N/A
1999ChevroletC2500 Suburban5.7LV8N/A
1999ChevroletC355.7LV8N/A
1999ChevroletC35005.7LV8N/A
1999ChevroletExpress 15005.7LV8N/A
1999ChevroletExpress 25005.7LV8N/A
1999ChevroletExpress 35005.7LV8N/A
1999ChevroletK15005.7LV8N/A
1999ChevroletK1500 Suburban5.7LV8N/A
1999ChevroletK25005.7LV8N/A
1999ChevroletK2500 Suburban5.7LV8N/A
1999ChevroletK35005.7LV8N/A
1999ChevroletP305.7LV8N/A
1999ChevroletTahoe5.7LV8N/A
1999GMCC15005.7LV8N/A
1999GMCC1500 Suburban5.7LV8N/A
1999GMCC25005.7LV8N/A
1999GMCC2500 Suburban5.7LV8N/A
1999GMCC35005.7LV8N/A
1999GMCK15005.7LV8N/A
1999GMCK1500 Suburban5.7LV8N/A
1999GMCK25005.7LV8N/A
1999GMCK2500 Suburban5.7LV8N/A
1999GMCK35005.7LV8N/A
1999GMCP35005.7LV8N/A
1999GMCSavana 15005.7LV8N/A
1999GMCSavana 25005.7LV8N/A
1999GMCSavana 35005.7LV8N/A
1999GMCYukon5.7LV8N/A
1998ChevroletC15005.7LV8N/A
1998ChevroletC1500 Suburban5.7LV8N/A
1998ChevroletC25005.7LV8N/A
1998ChevroletC2500 Suburban5.7LV8N/A
1998ChevroletC355.7LV8N/A
1998ChevroletC35005.7LV8N/A
1998ChevroletExpress 15005.7LV8N/A
1998ChevroletExpress 25005.7LV8N/A
1998ChevroletExpress 35005.7LV8N/A
1998ChevroletK15005.7LV8N/A
1998ChevroletK1500 Suburban5.7LV8N/A
1998ChevroletK25005.7LV8N/A
1998ChevroletK2500 Suburban5.7LV8N/A
1998ChevroletK35005.7LV8N/A
1998ChevroletP305.7LV8N/A
1998ChevroletTahoe5.7LV8N/A
1998GMCC15005.7LV8N/A
1998GMCC1500 Suburban5.7LV8N/A
1998GMCC25005.7LV8N/A
1998GMCC2500 Suburban5.7LV8N/A
1998GMCC35005.7LV8N/A
1998GMCK15005.7LV8N/A
1998GMCK1500 Suburban5.7LV8N/A
1998GMCK25005.7LV8N/A
1998GMCK2500 Suburban5.7LV8N/A
1998GMCK35005.7LV8N/A
1998GMCP35005.7LV8N/A
1998GMCSavana 15005.7LV8N/A
1998GMCSavana 25005.7LV8N/A
1998GMCSavana 35005.7LV8N/A
1998GMCYukon5.7LV8N/A
1997ChevroletC15005.7LV8N/A
1997ChevroletC1500 Suburban5.7LV8N/A
1997ChevroletC25005.7LV8N/A
1997ChevroletC2500 Suburban5.7LV8N/A
1997ChevroletC355.7LV8N/A
1997ChevroletC35005.7LV8N/A
1997ChevroletExpress 15005.7LV8N/A
1997ChevroletExpress 25005.7LV8N/A
1997ChevroletExpress 35005.7LV8N/A
1997ChevroletK15005.7LV8N/A
1997ChevroletK1500 Suburban5.7LV8N/A
1997ChevroletK25005.7LV8N/A
1997ChevroletK2500 Suburban5.7LV8N/A
1997ChevroletK35005.7LV8N/A
1997ChevroletP305.7LV8N/A
1997ChevroletTahoe5.7LV8N/A
1997GMCC15005.7LV8N/A
1997GMCC1500 Suburban5.7LV8N/A
1997GMCC25005.7LV8N/A
1997GMCC2500 Suburban5.7LV8N/A
1997GMCC35005.7LV8N/A
1997GMCK15005.7LV8N/A
1997GMCK1500 Suburban5.7LV8N/A
1997GMCK25005.7LV8N/A
1997GMCK2500 Suburban5.7LV8N/A
1997GMCK35005.7LV8N/A
1997GMCP35005.7LV8N/A
1997GMCSavana 15005.7LV8N/A
1997GMCSavana 25005.7LV8N/A
1997GMCSavana 35005.7LV8N/A
1997GMCYukon5.7LV8N/A
1996ChevroletC15005.7LV8N/A
1996ChevroletC1500 Suburban5.7LV8N/A
1996ChevroletC25005.7LV8N/A
1996ChevroletC2500 Suburban5.7LV8N/A
1996ChevroletC355.7LV8N/A
1996ChevroletC35005.7LV8N/A
1996ChevroletExpress 15005.7LV8N/A
1996ChevroletExpress 25005.7LV8N/A
1996ChevroletExpress 35005.7LV8N/A
1996ChevroletK15005.7LV8N/A
1996ChevroletK1500 Suburban5.7LV8N/A
1996ChevroletK25005.7LV8N/A
1996ChevroletK2500 Suburban5.7LV8N/A
1996ChevroletK35005.7LV8N/A
1996ChevroletP305.7LV8N/A
1996ChevroletTahoe5.7LV8N/A
1996GMCC15005.7LV8N/A
1996GMCC1500 Suburban5.7LV8N/A
1996GMCC25005.7LV8N/A
1996GMCC2500 Suburban5.7LV8N/A
1996GMCC35005.7LV8N/A
1996GMCK15005.7LV8N/A
1996GMCK1500 Suburban5.7LV8N/A
1996GMCK25005.7LV8N/A
1996GMCK2500 Suburban5.7LV8N/A
1996GMCK35005.7LV8N/A
1996GMCP35005.7LV8N/A
1996GMCSavana 15005.7LV8N/A
1996GMCSavana 25005.7LV8N/A
1996GMCSavana 35005.7LV8N/A
1996GMCYukon5.7LV8N/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:

102053102432718102432710DA3506P-GM350EPB1487NPC-1030

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

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