01Custom engine builds
Purpose-driven assemblies, turbo systems, and build details shaped around the vehicle and the owner’s goal.
CALDWELL DIESEL / PERFORMANCE / REPAIR
Built past stock.
Built past stock.
Repaired beyond guesswork.
Custom diesel builds, advanced diagnostics, and serious repair work from the Caldwell shop for customers across Boise, Nampa, Meridian, Eagle, and the Treasure Valley.
20+YEARS HANDS-ON EXPERIENCE
CustomBUILDS & PERFORMANCE WORK
CaldwellSHOP SERVING THE TREASURE VALLEY
01CUSTOM
THE WORK COMES FIRST
Proof in the metal.
JBJ’s custom diesel work deserves more than a line in a service list. Engine builds, turbo systems, precision components, and finished details have room to lead.
See JBJ Diesel custom builds and shop projects →
02CAPABILITY
WHAT JBJ IS BUILT TO HANDLE
Explore all diesel repair services →One shop. Three serious lanes.
01
02Advanced diesel repair
A hands-on path from symptoms and diagnostics through engine, air, fuel, and supporting-system repair.
03Heavy-duty capability
Shop space and equipment for demanding platforms, with the repair scope confirmed before work begins.
03SERVICE AREA
ONE CALDWELL SHOP / REGIONAL REACH
Diesel work for the Treasure Valley.
JBJ Diesel is based in Caldwell and works with diesel owners, project vehicles, and commercial platforms from Boise, Nampa, Meridian, Eagle, and communities across the Treasure Valley. Start with a call so the shop can confirm the vehicle, the goal, and the right next step.
CaldwellBoiseNampaMeridianEagleTreasure Valley
REAL WORK / REAL SHOP / REAL EXPERIENCE04EXPERIENCE
20+Years of hands-on diesel experience.
Experience matters most when the job is unusual, the failure is hard to isolate, or the build has to work as a complete system—not a pile of parts.
Start a project conversation →05SHOP FEED
FROM @JBJDIESEL
The feed already tells the story.
06VIDEO
FEATURED SHOP VIDEO / INSTAGRAMSee what goes into the build.
Watch a selected JBJ Diesel shop video directly on the page, or open the original post on Instagram for the full caption and conversation.
JBJ DIESEL / FEATURED VIDEOCustom work in motion.The Instagram player loads only after you choose to watch.
HAVE A BUILD OR A PROBLEM?
Show the Caldwell shop what you’re working with.
Tell JBJ Diesel about the vehicle, its current setup, and the result you need. Customers from across the Treasure Valley can start with the same direct project-fit conversation.