OE Quality
60-Day Returns

Dorman 594-203 Engine Harmonic Balancer
Overview of Dorman Engine Harmonic Balancer 594-203
The Dorman Engine Harmonic Balancer 594-203 is designed for reliable performance in select Lexus and Toyota vehicles. This regular grade harmonic balancer features a serpentine drive belt compatibility and includes degree markings for precise engine timing adjustments.
- Regular grade type for standard engine applications
- Single mounting hole for secure installation
- Compatible with serpentine drive belt systems
- Black finish for corrosion resistance
- Includes degree markings to assist with timing
- Package contains balancer and instruction sheet
Detailed Product Description
The Dorman 594-203 engine harmonic balancer is engineered to meet the specifications of various Lexus and Toyota models, including the 4Runner, GX470, Land Cruiser, LX470, Sequoia, and Tundra. Its regular grade construction ensures durability under normal operating conditions. The balancer is designed with a single mounting hole and is compatible with serpentine drive belt systems, which are common in these vehicles. The black finish provides protection against rust and wear, while the included degree markings allow for accurate engine timing during installation or maintenance. This part does not include bolts or washers, so those components must be sourced separately.
Compatible Vehicles and Applications
- Lexus GX470 and LX470
- Toyota 4Runner and Land Cruiser
- Toyota Sequoia and Tundra
This harmonic balancer is intended for use in engine systems requiring vibration dampening and timing accuracy, helping to maintain engine balance and reduce wear on crankshaft components.
Common Issues Addressed by This Harmonic Balancer
- Engine vibration and noise caused by crankshaft imbalance
- Wear and tear on crankshaft seals and bearings
- Inaccurate engine timing due to worn or damaged balancer
- Drive belt misalignment or slippage in serpentine belt systems
- Potential engine damage from harmonic resonance
Installation Notes and Tips
When installing the Dorman 594-203 harmonic balancer, ensure the engine is cool and the vehicle is securely supported. Use the included degree markings to verify proper timing alignment. Since bolts and washers are not included, use OEM or equivalent fasteners to secure the balancer. Follow the vehicle manufacturer’s torque specifications to avoid damage. Refer to the instruction sheet for detailed installation guidance.
Quality Assurance and Warranty
Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The 594-203 harmonic balancer undergoes quality inspections to ensure durability and performance. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.
| Brand | Dorman |
| Part Number | 594-203 |
| Bolt And Washer Included | No |
| Color/Finish | Black |
| Degree Markings | Yes |
| Drive Belt Type | Serpentine |
| Grade Type | Regular |
| Mounting Hole Quantity | 1 |
| Package Contents | Balancer; Instruction Sheet |
This part fits 53 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2009 | Lexus | GX470 | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2009 | Toyota | 4Runner | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2009 | Toyota | Sequoia | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2009 | Toyota | Tundra | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2008 | Lexus | GX470 | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2008 | Toyota | 4Runner | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2008 | Toyota | Sequoia | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2008 | Toyota | Tundra | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2007 | Lexus | GX470 | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2007 | Lexus | LX470 | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2007 | Toyota | 4Runner | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2007 | Toyota | Land Cruiser | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2007 | Toyota | Sequoia | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2007 | Toyota | Tundra | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2006 | Lexus | GX470 | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2006 | Lexus | LX470 | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2006 | Toyota | 4Runner | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2006 | Toyota | Land Cruiser | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2006 | Toyota | Sequoia | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2006 | Toyota | Tundra | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2005 | Lexus | GX470 | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2005 | Lexus | LX470 | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2005 | Toyota | 4Runner | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2005 | Toyota | Land Cruiser | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2005 | Toyota | Sequoia | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2005 | Toyota | Tundra | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2004 | Lexus | GX470 | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2004 | Lexus | LX470 | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2004 | Toyota | 4Runner | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2004 | Toyota | Land Cruiser | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2004 | Toyota | Sequoia | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2004 | Toyota | Tundra | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2003 | Lexus | GX470 | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2003 | Lexus | LX470 | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2003 | Toyota | 4Runner | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2003 | Toyota | Land Cruiser | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2003 | Toyota | Sequoia | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2003 | Toyota | Tundra | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2002 | Lexus | LX470 | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2002 | Toyota | Land Cruiser | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2002 | Toyota | Sequoia | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2002 | Toyota | Tundra | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2001 | Lexus | LX470 | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2001 | Toyota | Land Cruiser | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2001 | Toyota | Sequoia | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2001 | Toyota | Tundra | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2000 | Lexus | LX470 | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2000 | Toyota | Land Cruiser | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 2000 | Toyota | Tundra | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 1999 | Lexus | LX470 | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 1999 | Toyota | Land Cruiser | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 1998 | Lexus | LX470 | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
| 1998 | Toyota | Land Cruiser | 4.7L | V8 | N/A | Direct replacement harmonic balancer for engine. |
* 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.