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1996-2002 3rd gen toyota 4runner custom front winch bumper with auxiliary light pods  — 3/16" steel, built by 633 Fabrication
CUSTOM OFF-ROAD FABRICATION · LOOMIS, CA

Steel Bumpers, Rock Sliders & Headache Racks Designed and Built to Last

Hand-welded from high quality steel for Toyotas, Fords, Dodges, and Jeeps. Built in Loomis, California and ships anywhere in the US.

Built To Order

2-4 Week Lead Time

Ships Nationwide

Built In Loomis, CA

OUR CATALOG

Vehicles We Build For

We're a small shop and our catalog is still growing. We add new products almost every month. Here's what we've got so far.

Local to Loomis, CA? We do fully custom builds, just reach out and we'll make it happen.

TOYOTA

4Runner

1990-1995

Front Bumper

3D Scans

4Runner

1996-2002

Front Bumper

Sequoia

2001-2007

3D Scans

Dodge/Ram

Ram 1500-3500

1994-2002

Front Bumper

3D Scans

Ford

F-250 / F-350

1999-2004

Front Bumper

New vehicles added regularly — don't see yours? Reach out.

OUR STORY

About 633 Fabrication

My name is Ben. I started 633 Fabrication in 2023 building parts for my own truck in my parents' garage. It grew from there into a full-time custom fab shop here in Loomis, California.

Every bumper, slider, and rack that leaves this shop is still built the same way it started, by hand, one piece at a time. I have improved my process and now use a 3D scanner and CNC plasma table to make sure everything fits right, then weld it myself start to finish.​

The name comes from Matthew 6:33. I thank God for the opportunity to run this business and I try to bring Him glory with every order.

1999-2004 Ford F-250 custom front winch bumper bull bar for mounting auxiliary light pods  — 3/16" steel, built by 633 Fabrication
HOW IT'S MADE

The Build Process

3D scanning GMC Sierra rear end for custom steel bumper design

01

3D SCAN

We start by 3D scanning your vehicle's frame, mounts, and body lines. This gives us exact measurements. No guessing, no templates, no "close enough."

1984-2001 Jeep Cherokee XJ custom front bumper 3D CAD render — designed and built by 633 Fabrication Loomis CA

02

DESIGN

Scan data goes into CAD software where we design every bracket, plate, and gusset to fit your exact truck. You can even see a 3D model of your bumper before we cut a single piece of steel.

CNC plasma table cutting custom steel bumper parts for a Toyota 4Runner — 633 Fabrication Loomis CA

03

CNC PLASMA CUT

Every part is cut on our CNC plasma table using the design files directly, no hand tracing, no variation. Every hole, every edge, exactly where it needs to be.

MIG welding custom steel rear bumper mounts for a 2005 GMC Sierra — built by 633 Fabrication Loomis CA

04

WELD

Parts go together clean because they were cut to fit. Every bumper is MIG welded by hand. One builder, one standard, start to finish.

Hand grinding weld seams on a custom steel Jeep Cherokee XJ bumper — 633 Fabrication Loomis CA

05

GRIND

We grind, clean, and finish every weld so the final product looks as good as it performs. Ready for paint or powder coat

SHOP

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