Description

THESE SHOULD BE AVAILABLE IN MARCH 2026

ALUMINUM BOTTOM REPLACEMENT STEP FOR PETERBILT DPF BOX

**This is a direct replacement; Simply unbolt the old step and bolt on this new step**

  • Price is for one (1) step, brackets sold separately.
  • Fits all 2018 and newer Peterbilt models, including 389, 567, 579, 589
  • Same quality and material as genuine Paccar part - for half the price!
  • Choose from 2 different sizes:
  • L 41-1/8" x W 7-1/2" x H 2-1/2" - Peterbilt part # M82-6143
  • L 44-1/8" x W 7-1/2" x H 2-1/2" - Peterbilt part # M82-6144
  • Heavy Duty version includes a 3/16" aluminum reinforcement plate riveted to the front edge for maximum strength and durability
  • Reuses your existing factory hardware
  • Brackets for 38X models available here

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Product form

PETERBILT DPF Box Step - New Models

$250.00

THESE SHOULD BE AVAILABLE IN MARCH 2026 ALUMINUM BOTTOM REPLACEMENT STEP FOR PETERBILT DPF BOX **This is a direct replacement;... Read more Read more

Out of stock

SKU: DPF18-41

Description

THESE SHOULD BE AVAILABLE IN MARCH 2026

ALUMINUM BOTTOM REPLACEMENT STEP FOR PETERBILT DPF BOX

**This is a direct replacement; Simply unbolt the old step and bolt on this new step**

  • Price is for one (1) step, brackets sold separately.
  • Fits all 2018 and newer Peterbilt models, including 389, 567, 579, 589
  • Same quality and material as genuine Paccar part - for half the price!
  • Choose from 2 different sizes:
  • L 41-1/8" x W 7-1/2" x H 2-1/2" - Peterbilt part # M82-6143
  • L 44-1/8" x W 7-1/2" x H 2-1/2" - Peterbilt part # M82-6144
  • Heavy Duty version includes a 3/16" aluminum reinforcement plate riveted to the front edge for maximum strength and durability
  • Reuses your existing factory hardware
  • Brackets for 38X models available here

Frequently Asked Questions

Here are the most common questions and answers about our products. Call or text if you have another question not listed here.

What is the difference between standard and heavy duty?

Heavy duty steps are reinforced with a 3/16" thick aluminum plate riveted to the front edge. This makes the steps significantly stronger. We always recommend the heavy duty steps - unless they're for light use, like on the passenger side.

What is the difference between standard and heavy duty?
Is this part in stock? When can you ship it?

Yes, all of our parts are in stock and ship from our Reno, NV shop within 1 to 2 days.

Can I return this if it doesn't fit?

Yes. You are responsible for the cost of return shipping, so read the full description and double check the part numbers, measurements, and photos to ensure you are ordering the correct part.

Do you make the products on your website?

Yes. We make the products we sell - in Reno, NV, with high-quality American-made materials. Even the rivets we use on our steps are made in the USA.

Do you offer express shipping?

Yes, except on a few oversize items. You can select 2-day express shipping at checkout. Keep in mind that does not include our processing time of 1-2 days. So express shipping will take 3+ business days after you order.

Can I call to place an order over the phone?

You can, but honestly, the website is the easiest and fastest way to place your order.

Reviews

What customers think about our products

  • David M Rotterdam

    Reliable, intuitive, and surprisingly affordable. I use Fleetassist for my personal car and it’s been a game changer. Trip overviews are crystal clear and the app works flawlessly.

  • Sophie L Utrecht

    I run a small delivery business and needed a system that’s both tax-compliant and easy to manage. Fleetassist delivers exactly that. The installation was quick, and the live tracking is spot-on.

  • Jamal K Canada

    As a self-employed electrician, I’m on the road a lot. With Fleetassist, I no longer have to think about logging my trips — it’s all done automatically. And the customer support? Top-notch.

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