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Peterbilt 579 Bumper Removal and Replacement: Installation Video Guide
Peterbilt 579 Bumper Replacement: Complete Installation Guide
The front bumper on a Peterbilt 579 takes a beating — from minor parking lot scrapes to road debris damage. Replacing the bumper is a straightforward job that most mechanics can complete in 1-2 hours with basic hand tools.
Bumper Options for Peterbilt 579
| Type | Weight | Price Range | Best For |
|---|---|---|---|
| Chrome Steel | 85-95 lbs | $$$$ | Show trucks, premium appearance |
| Painted Steel | 80-90 lbs | $$$ | Fleet trucks, color matching |
| Stainless Steel | 75-85 lbs | $$$$ | Corrosion resistance, longevity |
| Composite/Plastic | 35-45 lbs | $$ | Weight savings, budget-friendly |
Tools Required
- 15mm and 18mm socket set
- Impact wrench (recommended)
- Floor jack and jack stands
- Pry bar
- Torque wrench
- Anti-seize compound
Step 1: Support the Bumper
Before removing any bolts, support the bumper from below with a floor jack. Peterbilt 579 chrome bumpers weigh 85-95 lbs — you don't want this dropping on your feet. Have an assistant ready to help guide it off.
Step 2: Disconnect Fog Lights and Accessories
Unplug the fog light wiring harnesses on both sides. If equipped with a license plate light or air dam, disconnect those as well. Mark any connectors with tape for easy identification during reinstallation.
Step 3: Remove Mounting Hardware
The 579 bumper is typically secured with 6-8 bolts (15mm or 18mm depending on year). Remove the bolts from both bumper brackets. Apply penetrating oil to stubborn bolts — especially on trucks operating in salt-belt states.
Step 4: Remove the Old Bumper
With all hardware removed, carefully lower the bumper using the floor jack. Slide it forward and away from the truck. Inspect the mounting brackets for damage, corrosion, or misalignment.
Step 5: Install the New Bumper
Apply anti-seize to all bolt threads to prevent future corrosion. Lift the new bumper into position with the floor jack. Start all bolts hand-tight before torquing to spec (typically 75-85 ft-lbs for the main mounting bolts). Reconnect all wiring.
Step 6: Final Check
Verify bumper alignment by checking equal gaps on both sides. Test all fog lights and accessories. Take the truck for a short drive and re-check bolt torque after 50 miles.
Pro Tips from Our Shop
- Take photos before removal — especially of wiring routing and bracket positions
- Replace hardware: New stainless bolts are cheap insurance against seized fasteners next time
- Check for frame damage: If the old bumper was damaged in a collision, inspect the frame rails behind the brackets
- Apply clear coat to chrome: A UV-resistant clear coat extends chrome life significantly
Shop bumpers: Browse Peterbilt 579 bumpers at EverTrust — chrome, painted, and stainless options with direct-fit guarantee.