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OE Quality
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BBB IndustriesPart #: N503-0159
BBB Industries N503-0159 Steering Gear
92 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
New Steering Gear
Fitment: Cadillac, Chevrolet, and GMC, Escalade, Escalade ESV, Escalade EXT, Avalanche 1500, Silverado 1500, Suburban 1500, Tahoe, Sierra 1500, Yukon, and Yukon XL 1500
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Not what you need? See all Steering Gear options
Overview of BBB Industries New Steering Gear N503-0159
The BBB Industries New Steering Gear N503-0159 is designed for precise steering control in select GM trucks and SUVs. Engineered as a new electric steering gear, it offers reliable performance for vehicles like the Chevrolet Silverado 1500 and Cadillac Escalade.
- Output shaft diameter: 1.25 inches (31.75 mm)
- Input shaft diameter: 0.66 inches (16.76 mm)
- Electric power steering gear type
- Installation kit included for ease of replacement
- Three mounting holes for secure fitment
- Pressure and return port thread sizes: M18x1.50 and M16x1.50
- Turns lock to lock: 3.25
- Output shaft spline count: 32
Details on the New Steering Gear Product Line
The BBB Industries New Steering Gear line focuses on delivering brand-new steering components designed to meet or exceed OEM specifications. This product line emphasizes quality and fitment accuracy, ensuring compatibility with electric power steering systems found in various GM models. The N503-0159 is part of this line, providing a direct replacement solution with included installation hardware.
Technical Description and Fitment
This steering gear unit features an output shaft diameter of 1.25 inches (31.75 mm) and an input shaft diameter of 0.66 inches (16.76 mm), matching the specifications required for proper steering response. The electric power steering design supports modern vehicle systems, including pressure and return ports sized M18x1.50 and M16x1.50 respectively. With three mounting holes and a 32-tooth spline count on the output shaft, this part ensures a secure and precise fit. The 3.25 turns lock to lock ratio provides responsive steering feel for vehicles such as the GMC Yukon XL 1500 and Chevrolet Tahoe.
Compatible Vehicles and Common Applications
- Cadillac Escalade, Escalade ESV, Escalade EXT
- Chevrolet Avalanche 1500, Silverado 1500, Suburban 1500, Tahoe
- GMC Sierra 1500, Yukon, Yukon XL 1500
- Replacement for worn or leaking steering gear units
- Restores proper steering response and reduces play
- Addresses steering noise or stiffness issues
Installation Notes and Tips
The N503-0159 steering gear comes with an installation kit to facilitate a straightforward replacement process. Ensure all mounting bolts are torqued to manufacturer specifications and verify proper alignment of the input and output shafts. Bleed the power steering system as required after installation to prevent air pockets and maintain smooth operation. This part is designed for electric power steering systems, so confirm compatibility with your vehicle’s steering setup before installation.
Quality Assurance and Warranty
BBB Industries provides this New Steering Gear as a brand-new component manufactured to meet OEM standards. The inclusion of an installation kit supports proper fitment and function. While specific warranty details are not provided here, BBB Industries typically offers limited warranties on their steering components to cover defects in materials and workmanship. Consult the product documentation or BBB Industries directly for exact warranty terms.
| Brand | BBB Industries |
|---|---|
| Part Number | N503-0159 |
| Position | New Steering Gear |
| Inlet Size | M18X1.50 |
| Input Shaft Diameter | 0.66 |
| Input Shaft Diameter | 16.76 |
| Installation Kit Included | Yes |
| Manual or Power | Electric |
| New or Remanufactured | New |
| Number of Mounting Holes | 3 |
| Outlet Size | M16X1.50 |
| Output Shaft Diameter | 1.25 |
| Output Shaft Diameter | 31.75 |
| Output Shaft Spline Count | 32 |
| Pressure Port Thread Size | M18X1.50 |
| Return Port Thread Size | M16X1.50 |
| Turns Lock To Lock | 3.25 |
This part fits 92 vehicles. Search below:
| Year | Make | Model | Submodel | Body Type | Drive Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2006 | Cadillac | Escalade | AWD | N/A | Compatible with vehicles equipped with power steering.; New Steering Gear | ||
| 2006 | Cadillac | Escalade ESV | N/A | Compatible with vehicles equipped with power steering.; New Steering Gear | |||
| 2006 | Cadillac | Escalade EXT | N/A | Compatible with vehicles equipped with power steering.; New Steering Gear | |||
| 2006 | Chevrolet | Avalanche 1500 | 4WD | N/A | Compatible with vehicles equipped with power steering.; New Steering Gear | ||
| 2006 | Chevrolet | Silverado 1500 | Extended Cab Pickup | 4WD | N/A | Power Steering; w/ Luxury Edition Pkg (Y91), w/ Off Road Sales Pkg. (9G3) or w/ Sport Pkg. (B4U); New Steering Gear | |
| 2006 | Chevrolet | Silverado 1500 | Crew Cab Pickup | 4WD | N/A | Power Steering; w/ Luxury Edition Pkg. (Y91); New Steering Gear | |
| 2006 | Chevrolet | Silverado 1500 | Extended Cab Pickup | RWD | N/A | Power Steering; w/ High Output Pkg. (B4V) or w/ Spring Special (b2E); New Steering Gear | |
| 2006 | Chevrolet | Suburban 1500 | 4WD | N/A | Power Steering; 4-Bolt Housing; New Steering Gear | ||
| 2006 | Chevrolet | Suburban 1500 | AWD | N/A | Power Steering; 4-Bolt Housing; New Steering Gear | ||
| 2006 | Chevrolet | Tahoe | 4WD | N/A | Power Steering; 4-Bolt Housing; New Steering Gear | ||
| 2006 | GMC | Sierra 1500 | Crew Cab Pickup | 4WD | N/A | Power Steering; w/ Luxury Edition Pkg. (Y91); New Steering Gear | |
| 2006 | GMC | Sierra 1500 | Crew Cab Pickup | AWD | N/A | Power Steering; w/ Luxury Edition Pkg. (Y91); New Steering Gear | |
| 2006 | GMC | Sierra 1500 | Extended Cab Pickup | RWD | N/A | Power Steering; w/ High Output Pkg. (B4V) or w/ Spring Special (b2E); New Steering Gear | |
| 2006 | GMC | Sierra 1500 | Extended Cab Pickup | 4WD | N/A | Power Steering; w/ Luxury Edition Pkg (Y91), w/ Off Road Sales Pkg. (9G3) or w/ Sport Pkg. (B4U); New Steering Gear | |
| 2006 | GMC | Yukon | 4WD | N/A | Power Steering; 4-Bolt Housing; New Steering Gear | ||
| 2006 | GMC | Yukon | AWD | N/A | Power Steering; 4-Bolt Housing; New Steering Gear | ||
| 2006 | GMC | Yukon XL 1500 | 4WD | N/A | Power Steering; 4-Bolt Housing; New Steering Gear | ||
| 2006 | GMC | Yukon XL 1500 | AWD | N/A | Power Steering; 4-Bolt Housing; New Steering Gear | ||
| 2005 | Cadillac | Escalade | AWD | N/A | Compatible with vehicles equipped with power steering.; New Steering Gear | ||
| 2005 | Cadillac | Escalade ESV | N/A | Compatible with vehicles equipped with power steering.; New Steering Gear | |||
| 2005 | Cadillac | Escalade EXT | N/A | Compatible with vehicles equipped with power steering.; New Steering Gear | |||
| 2005 | Chevrolet | Avalanche 1500 | 4WD | N/A | Compatible with vehicles equipped with power steering.; New Steering Gear | ||
| 2005 | Chevrolet | Silverado 1500 | Extended Cab Pickup | 4WD | N/A | Power Steering; w/ Luxury Edition Pkg (Y91), w/ Off Road Sales Pkg. (9G3) or w/ Sport Pkg. (B4U); New Steering Gear | |
| 2005 | Chevrolet | Silverado 1500 | Extended Cab Pickup | AWD | N/A | Power Steering; w/ Luxury Edition Pkg (Y91), w/ Off Road Sales Pkg. (9G3) or w/ Sport Pkg. (B4U); New Steering Gear | |
| 2005 | Chevrolet | Silverado 1500 | Crew Cab Pickup | 4WD | N/A | Power Steering; w/ Luxury Edition Pkg. (Y91); New Steering Gear | |
| 2005 | Chevrolet | Silverado 1500 | Extended Cab Pickup | RWD | N/A | Power Steering; w/ High Output Pkg. (B4V) or w/ Spring Special (b2E); New Steering Gear | |
| 2005 | Chevrolet | Suburban 1500 | 4WD | N/A | Power Steering; 4-Bolt Housing; New Steering Gear | ||
| 2005 | Chevrolet | Tahoe | 4WD | N/A | Power Steering; 4-Bolt Housing; New Steering Gear | ||
| 2005 | GMC | Sierra 1500 | Crew Cab Pickup | 4WD | N/A | Power Steering; w/ Luxury Edition Pkg. (Y91); New Steering Gear | |
| 2005 | GMC | Sierra 1500 | Crew Cab Pickup | AWD | N/A | Power Steering; w/ Luxury Edition Pkg. (Y91); New Steering Gear | |
| 2005 | GMC | Sierra 1500 | Extended Cab Pickup | RWD | N/A | Power Steering; w/ High Output Pkg. (B4V) or w/ Spring Special (b2E); New Steering Gear | |
| 2005 | GMC | Sierra 1500 | Extended Cab Pickup | 4WD | N/A | Power Steering; w/ Luxury Edition Pkg (Y91), w/ Off Road Sales Pkg. (9G3) or w/ Sport Pkg. (B4U); New Steering Gear | |
| 2005 | GMC | Yukon | 4WD | N/A | Power Steering; 4-Bolt Housing; New Steering Gear | ||
| 2005 | GMC | Yukon | AWD | N/A | Power Steering; 4-Bolt Housing; New Steering Gear | ||
| 2005 | GMC | Yukon XL 1500 | 4WD | N/A | Power Steering; 4-Bolt Housing; New Steering Gear | ||
| 2005 | GMC | Yukon XL 1500 | AWD | N/A | Power Steering; 4-Bolt Housing; New Steering Gear | ||
| 2004 | Cadillac | Escalade | AWD | N/A | Compatible with vehicles equipped with power steering.; New Steering Gear | ||
| 2004 | Cadillac | Escalade ESV | N/A | Compatible with vehicles equipped with power steering.; New Steering Gear | |||
| 2004 | Cadillac | Escalade EXT | N/A | Compatible with vehicles equipped with power steering.; New Steering Gear | |||
| 2004 | Chevrolet | Avalanche 1500 | 4WD | N/A | Compatible with vehicles equipped with power steering.; New Steering Gear | ||
| 2004 | Chevrolet | Silverado 1500 | Extended Cab Pickup | 4WD | N/A | Power Steering; w/ Luxury Edition Pkg (Y91), w/ Off Road Sales Pkg. (9G3) or w/ Sport Pkg. (B4U); New Steering Gear | |
| 2004 | Chevrolet | Silverado 1500 | Extended Cab Pickup | AWD | N/A | Power Steering; w/ Luxury Edition Pkg (Y91), w/ Off Road Sales Pkg. (9G3) or w/ Sport Pkg. (B4U); New Steering Gear | |
| 2004 | Chevrolet | Silverado 1500 | Crew Cab Pickup | 4WD | N/A | Power Steering; w/ Luxury Edition Pkg. (Y91); New Steering Gear | |
| 2004 | Chevrolet | Silverado 1500 | Extended Cab Pickup | RWD | N/A | Power Steering; w/ High Output Pkg. (B4V) or w/ Spring Special (b2E); New Steering Gear | |
| 2004 | Chevrolet | Suburban 1500 | 4WD | N/A | Power Steering; 4-Bolt Housing; New Steering Gear | ||
| 2004 | Chevrolet | Tahoe | 4WD | N/A | Power Steering; 4-Bolt Housing; New Steering Gear | ||
| 2004 | GMC | Sierra 1500 | Crew Cab Pickup | 4WD | N/A | Power Steering; w/ Luxury Edition Pkg. (Y91); New Steering Gear | |
| 2004 | GMC | Sierra 1500 | Extended Cab Pickup | RWD | N/A | Power Steering; w/ High Output Pkg. (B4V) or w/ Spring Special (b2E); New Steering Gear | |
| 2004 | GMC | Sierra 1500 | Extended Cab Pickup | 4WD | N/A | Power Steering; w/ Luxury Edition Pkg (Y91), w/ Off Road Sales Pkg. (9G3) or w/ Sport Pkg. (B4U); New Steering Gear | |
| 2004 | GMC | Sierra 1500 | Extended Cab Pickup | AWD | N/A | Power Steering; w/ Luxury Edition Pkg (Y91), w/ Off Road Sales Pkg. (9G3) or w/ Sport Pkg. (B4U); New Steering Gear | |
| 2004 | GMC | Yukon | 4WD | N/A | Power Steering; 4-Bolt Housing; New Steering Gear | ||
| 2004 | GMC | Yukon | AWD | N/A | Power Steering; 4-Bolt Housing; New Steering Gear | ||
| 2004 | GMC | Yukon XL 1500 | 4WD | N/A | Power Steering; 4-Bolt Housing; New Steering Gear | ||
| 2004 | GMC | Yukon XL 1500 | AWD | N/A | Power Steering; 4-Bolt Housing; New Steering Gear | ||
| 2003 | Cadillac | Escalade | AWD | N/A | Compatible with vehicles equipped with power steering.; New Steering Gear | ||
| 2003 | Cadillac | Escalade ESV | N/A | Compatible with vehicles equipped with power steering.; New Steering Gear | |||
| 2003 | Cadillac | Escalade EXT | N/A | Compatible with vehicles equipped with power steering.; New Steering Gear | |||
| 2003 | Chevrolet | Avalanche 1500 | 4WD | N/A | Compatible with vehicles equipped with power steering.; New Steering Gear | ||
| 2003 | Chevrolet | Silverado 1500 | Extended Cab Pickup | 4WD | N/A | Power Steering; w/ Luxury Edition Pkg (Y91), or w/ Sport Pkg. (B4U); New Steering Gear | |
| 2003 | Chevrolet | Silverado 1500 | Extended Cab Pickup | AWD | N/A | Power Steering; w/ Luxury Edition Pkg (Y91), or w/ Sport Pkg. (B4U); New Steering Gear | |
| 2003 | Chevrolet | Suburban 1500 | 4WD | N/A | Power Steering; w/ Off Road Appearance Package (BPH), Luxury Edition package (Y91); New Steering Gear | ||
| 2003 | Chevrolet | Tahoe | 4WD | N/A | Power Steering; 4-Bolt Housing; New Steering Gear | ||
| 2003 | GMC | Sierra 1500 | Extended Cab Pickup | 4WD | N/A | Power Steering; w/ Luxury Edition Pkg (Y91), or w/ Sport Pkg. (B4U); New Steering Gear | |
| 2003 | GMC | Sierra 1500 | Extended Cab Pickup | AWD | N/A | Power Steering; w/ Luxury Edition Pkg (Y91), or w/ Sport Pkg. (B4U); New Steering Gear | |
| 2003 | GMC | Yukon | 4WD | N/A | Power Steering; 4-Bolt Housing; New Steering Gear | ||
| 2003 | GMC | Yukon | AWD | N/A | Power Steering; 4-Bolt Housing; New Steering Gear | ||
| 2003 | GMC | Yukon XL 1500 | 4WD | N/A | Power Steering; w/ Off Road Appearance Package (BPH), Luxury Edition package (Y91); New Steering Gear | ||
| 2003 | GMC | Yukon XL 1500 | AWD | N/A | Power Steering; w/ Off Road Appearance Package (BPH), Luxury Edition package (Y91); New Steering Gear | ||
| 2002 | Cadillac | Escalade | AWD | N/A | Compatible with vehicles equipped with power steering.; New Steering Gear | ||
| 2002 | Cadillac | Escalade EXT | N/A | Compatible with vehicles equipped with power steering.; New Steering Gear | |||
| 2002 | Chevrolet | Avalanche 1500 | 4WD | N/A | Compatible with vehicles equipped with power steering.; New Steering Gear | ||
| 2002 | Chevrolet | Silverado 1500 | Extended Cab Pickup | 4WD | N/A | Power Steering; w/ Luxury Edition Pkg (Y91), (2nd Design) (Exc. Production Code LM); New Steering Gear | |
| 2002 | Chevrolet | Suburban 1500 | 4WD | N/A | Power Steering; w/ Production Code LS; New Steering Gear | ||
| 2002 | Chevrolet | Tahoe | LS | 4WD | N/A | Power Steering; Production Code LS - 4-Bolt Housing; New Steering Gear | |
| 2002 | Chevrolet | Tahoe | LT | 4WD | N/A | Power Steering; Production Code LS - 4-Bolt Housing; New Steering Gear | |
| 2002 | GMC | Sierra 1500 | Extended Cab Pickup | 4WD | N/A | Power Steering; w/ Luxury Edition Pkg (Y91), (2nd Design) (Exc. Production Code LM); New Steering Gear | |
| 2002 | GMC | Sierra 1500 | Extended Cab Pickup | AWD | N/A | Power Steering; w/ Luxury Edition Pkg (Y91), (2nd Design) (Exc. Production Code LM); New Steering Gear | |
| 2002 | GMC | Yukon | SLE | 4WD | N/A | Power Steering; Production Code LS - 4-Bolt Housing; New Steering Gear | |
| 2002 | GMC | Yukon | SLT | 4WD | N/A | Power Steering; Production Code LS - 4-Bolt Housing; New Steering Gear | |
| 2002 | GMC | Yukon XL 1500 | 4WD | N/A | Power Steering; w/ Production Code LS; New Steering Gear | ||
| 2002 | GMC | Yukon XL 1500 | AWD | N/A | Power Steering; w/ Production Code LS; New Steering Gear | ||
| 2001 | Chevrolet | Silverado 1500 | Extended Cab Pickup | 4WD | N/A | Power Steering; w/ Luxury Edition Pkg (Y91), (2nd Design) (Exc. Production Code LM); New Steering Gear | |
| 2001 | Chevrolet | Suburban 1500 | 4WD | N/A | Power Steering; w/ Production Code LS; New Steering Gear | ||
| 2001 | Chevrolet | Tahoe | Base | 4WD | N/A | Power Steering; Production Code LS - 4-Bolt Housing; New Steering Gear | |
| 2001 | Chevrolet | Tahoe | LS | 4WD | N/A | Power Steering; Production Code LS - 4-Bolt Housing; New Steering Gear | |
| 2001 | Chevrolet | Tahoe | LT | 4WD | N/A | Power Steering; Production Code LS - 4-Bolt Housing; New Steering Gear | |
| 2001 | GMC | Sierra 1500 | Extended Cab Pickup | 4WD | N/A | Power Steering; w/ Luxury Edition Pkg (Y91), (2nd Design) (Exc. Production Code LM); New Steering Gear | |
| 2001 | GMC | Sierra 1500 | Extended Cab Pickup | AWD | N/A | Power Steering; w/ Luxury Edition Pkg (Y91), (2nd Design) (Exc. Production Code LM); New Steering Gear | |
| 2001 | GMC | Yukon | SLT | 4WD | N/A | Power Steering; Production Code LS - 4-Bolt Housing; New Steering Gear | |
| 2001 | GMC | Yukon | SLE | 4WD | N/A | Power Steering; Production Code LS - 4-Bolt Housing; New Steering Gear | |
| 2001 | GMC | Yukon XL 1500 | 4WD | N/A | Power Steering; w/ Production Code LS; New Steering Gear | ||
| 2001 | GMC | Yukon XL 1500 | AWD | N/A | Power Steering; w/ Production Code LS; New Steering Gear |
* 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:
150628331507653215173571151999001932140426102452261049492610695088965542
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.