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New Replacement Power Steering Gear Box for 2002-2022 GM Trucks, SUVs, and Vans
The Yukon Gear ZSG8418 is a brand-new power steering gear box engineered as a direct replacement for a wide range of 2002-2022 GM 1500, 2500, and 3500 trucks, SUVs, and vans. If your steering has become vague, wandering, hard to center, or requires constant correction on the highway, the ZSG8418 restores confident, precise steering response with a 3.2 turns lock-to-lock ratio that matches factory steering geometry. This is a new unit, not a remanufactured or refurbished core, so no core return is required. The ZSG8418 is a bolt-on replacement that does not require modifications to the steering shaft, drag link, or mounting points, and it is backed by a 3-year warranty from Yukon Gear.
Key Features
- Brand New Unit — not remanufactured, no core charge or return required
- 3.2 Turns Lock-to-Lock — matches factory steering ratio for natural feel
- Bolt-On Installation — direct replacement, no modifications required
- Engineered for GM GMT800/GMT900 Platforms — covers Silverado, Sierra, Suburban, Yukon XL, and Express/Savana commercial applications
- 3-Year Warranty — backed by Yukon Gear manufacturer coverage
- Restores Steering Precision — eliminates looseness, wandering, and center-return issues caused by worn gear sets
| Specification | Detail |
|---|---|
| Part Number | ZSG8418 |
| Brand | Yukon Gear / USA Standard Gear |
| Type | Power Steering Gear Box |
| Turns Lock-to-Lock | 3.2 |
| Unit Condition | New (not remanufactured) |
| Core Return Required | No |
| Warranty | 3 Years |
| UPC | 883584152491 |
What's Included
- 1x Complete power steering gear box assembly (ZSG8418)
This Part Fits
| Year | Make | Model |
|---|---|---|
| 2002-2004 | Chevrolet | Silverado 2500 |
| 2001-2006 | Chevrolet | Silverado 1500 HD |
| 2002-2006 | Chevrolet | Silverado 3500 |
| 2007-2010 | Chevrolet | Silverado 3500 HD |
| 2001-2010 | Chevrolet | Silverado 2500 HD |
| 2002-2006 | Chevrolet | Avalanche 2500 |
| 2002-2013 | Chevrolet | Suburban 2500 |
| 2002-2004 | GMC | Sierra 2500 |
| 2001-2006 | GMC | Sierra 1500 HD |
| 2002-2006 | GMC | Sierra 3500 |
| 2007-2010 | GMC | Sierra 3500 HD |
| 2001-2010 | GMC | Sierra 2500 HD |
| 2002-2013 | GMC | Yukon XL 2500 |
Frequently Asked Questions
-
Q: Is the ZSG8418 a new unit or remanufactured?
A: It is a brand-new power steering gear box. No core return is required, and no core charge applies. -
Q: Does this fit my 2500 HD or 3500 HD truck?
A: Yes. The ZSG8418 fits 2001-2010 Chevrolet Silverado 2500 HD and 3500 HD, as well as the equivalent GMC Sierra 2500 HD and 3500 HD platforms. It also covers 2002-2013 Chevrolet Suburban 2500 and GMC Yukon XL 2500. Verify your specific model year against the fitment table. -
Q: Will a worn power steering box cause steering wander?
A: Yes. A worn gear box develops internal play that makes the steering feel vague, wander on the highway, and return slowly to center. Replacing the gear box with the ZSG8418 restores factory precision and feedback. -
Q: Do I need a wheel alignment after replacing the steering gear box?
A: A steering gear box replacement does not directly change alignment angles, but a post-installation alignment check is always recommended to verify the steering is centered and the vehicle tracks straight. -
Q: What power steering fluid should I use after installation?
A: Use GM-approved power steering fluid or a compatible synthetic equivalent meeting GM specification. Flush and replace the fluid in the system during installation to avoid contaminating the new gear. -
Q: Is professional installation recommended?
A: Professional installation is strongly recommended. Steering system work requires proper torque on all attachment points, bleeding of the power steering system, and a final road test to verify correct function and alignment. -
Q: What is the warranty on the ZSG8418?
A: Yukon Gear backs the ZSG8418 with a 3-year warranty against manufacturing defects from date of purchase. -
Q: Will this fit my Express or Savana van?
A: The ZSG8418 is engineered for the GMT800/GMT900 full-size truck and SUV platforms. Verify your van's specific application against the fitment table or contact us with your VIN before ordering.
Installation Notes
- Disconnect the battery before beginning steering gear removal
- Mark the position of the steering shaft coupler on the input shaft before disassembly to preserve steering wheel centering
- Torque all mounting bolts to factory specification; do not use air tools for final torque on steering gear fasteners
- Flush the power steering reservoir and refill with fresh fluid after installation
- Bleed the power steering system by cycling the steering lock-to-lock several times with the engine running before road testing
- Perform a post-installation alignment check to confirm the vehicle tracks straight
California Prop 65 Warning
WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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