


⚙️ Drive Smooth, Drive Confident — The Balancer That Keeps You Ahead
The Dorman 594-220 Engine Harmonic Balancer is a direct OEM replacement designed for select Buick, Chevrolet, GMC, Isuzu, and Saab models. Featuring a stress-resistant rubber bond, it effectively absorbs engine vibrations to ensure smooth operation. Built with stringent quality standards and thoroughly tested for fit and durability, this 3.1-pound balancer offers a reliable, long-lasting solution backed by over a century of automotive expertise.





| Manufacturer | Dorman Products |
| Brand | Dorman |
| Model | Harmonic Balancer |
| Item Weight | 3.1 pounds |
| Product Dimensions | 8.5 x 8.5 x 3.3 inches |
| Item model number | 594-220 |
| Exterior | Ready To Paint If Needed |
| Manufacturer Part Number | 594-220 |
| OEM Part Number | 102231; PB1536N; 12564100; 12571619; 12574399; 12578069; 8125780690 |
| Hollander Number | 309-636 |
M**E
Good but might require second par
OEM look except the hub in the middle is a second design and requires Genuine GM 89017622 Crankshaft Oil Seal, Front for my 2003 Trailblazer with 4.2 L engine. The differences in the two harmonic balancers is that this one has a seal at the end and a step on the hub. The first design is a straight hub without a seal on the end. If you have a step on your original harmonic balancer then there is no need for a new seal. Not a big deal just adds another part to replace but it is a probable good to replace the seal anyways while you have everything torn down.
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4 days ago
2 weeks ago