


Peterbilt 379 Fender Step | Driver Side (LH) | PBM-574L
PBM-574L
Replace your worn or damaged Peterbilt 379 fender step with this direct-fit aftermarket sand-cast aluminum step from DuraBuilt. Engineered for the 1987–2007 Peterbilt 379, this driver side (LH) step features pre-drilled holes matching OE mounting points for a straightforward installation. Sand-cast aluminum construction — not injection molded — for superior strength and durability.
Key Features
- Direct OEM Replacement: Replaces OEM part numbers L82-6003P and L82-6003R-P with precise fitment
- Sand-Cast Aluminum Construction: Stronger than injection-molded alternatives for long-term durability
- Pre-Drilled OE Mounting Holes: Bolt-on installation using factory mounting points
- Driver Side (LH): Left-hand side fitment — verify your application before ordering
- 1987–2007 Peterbilt 379 Fitment: Engineered specifically for this application
- New Aftermarket: Meets or exceeds OEM specifications without the dealer markup
⚠️ MUST VERIFY FITMENT BEFORE ORDERING. Confirm your OEM part number and side (Driver/Passenger) before purchasing. Questions? Call or text our technical team at 260-440-2101.
| SKU # | PBM-574L |
| Make | Peterbilt |
| Model | 379 |
| Year | 1987–2007 |
| Side | Driver Side (LH) |
| OEM Part # | L82-6003P |
| Condition | New Aftermarket |
| Material | Sand-Cast Aluminum (Not Injection Molded) |
| Mounting | Pre-Drilled OE Mounting Holes |
| Ship Weight | 20 lbs |
Frequently Asked Questions
Q: Will this fender step fit my Peterbilt 379?
A: This step is designed for the 1987–2007 Peterbilt 379, replacing OEM part numbers L82-6003P. This is the driver side (LH) version. Verify your OEM part number and side before ordering. Call or text 260-440-2101 for fitment verification.
Q: What is the difference between sand-cast and injection-molded aluminum?
A: Sand-cast aluminum is poured into a sand mold, producing a denser, stronger part with better structural integrity. Injection-molded parts are made under pressure and can be thinner and more prone to cracking under heavy use. Sand-cast is the preferred method for heavy-duty truck steps.
Q: Do I need the driver side or passenger side?
A: This listing is for the driver side (LH). If you need the passenger side (RH), call or text 260-440-2101 and we can help you find the correct part.
Q: How quickly can this step ship?
A: Most orders ship within 1–2 business days. This step ships ground freight at 20 lbs. Call or text 260-440-2101 for shipping costs and delivery estimates.
Original: $105.00
-65%$105.00
$36.75Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
PBM-574L
Replace your worn or damaged Peterbilt 379 fender step with this direct-fit aftermarket sand-cast aluminum step from DuraBuilt. Engineered for the 1987–2007 Peterbilt 379, this driver side (LH) step features pre-drilled holes matching OE mounting points for a straightforward installation. Sand-cast aluminum construction — not injection molded — for superior strength and durability.
Key Features
- Direct OEM Replacement: Replaces OEM part numbers L82-6003P and L82-6003R-P with precise fitment
- Sand-Cast Aluminum Construction: Stronger than injection-molded alternatives for long-term durability
- Pre-Drilled OE Mounting Holes: Bolt-on installation using factory mounting points
- Driver Side (LH): Left-hand side fitment — verify your application before ordering
- 1987–2007 Peterbilt 379 Fitment: Engineered specifically for this application
- New Aftermarket: Meets or exceeds OEM specifications without the dealer markup
⚠️ MUST VERIFY FITMENT BEFORE ORDERING. Confirm your OEM part number and side (Driver/Passenger) before purchasing. Questions? Call or text our technical team at 260-440-2101.
| SKU # | PBM-574L |
| Make | Peterbilt |
| Model | 379 |
| Year | 1987–2007 |
| Side | Driver Side (LH) |
| OEM Part # | L82-6003P |
| Condition | New Aftermarket |
| Material | Sand-Cast Aluminum (Not Injection Molded) |
| Mounting | Pre-Drilled OE Mounting Holes |
| Ship Weight | 20 lbs |
Frequently Asked Questions
Q: Will this fender step fit my Peterbilt 379?
A: This step is designed for the 1987–2007 Peterbilt 379, replacing OEM part numbers L82-6003P. This is the driver side (LH) version. Verify your OEM part number and side before ordering. Call or text 260-440-2101 for fitment verification.
Q: What is the difference between sand-cast and injection-molded aluminum?
A: Sand-cast aluminum is poured into a sand mold, producing a denser, stronger part with better structural integrity. Injection-molded parts are made under pressure and can be thinner and more prone to cracking under heavy use. Sand-cast is the preferred method for heavy-duty truck steps.
Q: Do I need the driver side or passenger side?
A: This listing is for the driver side (LH). If you need the passenger side (RH), call or text 260-440-2101 and we can help you find the correct part.
Q: How quickly can this step ship?
A: Most orders ship within 1–2 business days. This step ships ground freight at 20 lbs. Call or text 260-440-2101 for shipping costs and delivery estimates.






















