Truck caps
SmartCap EVO Sport
Steel cap with glass Gullwing side doors and vent windows.
Request a quote →Triangle Truck Parts / Azusa, California
BUILT FOR WORK.
READY FOR MORE.
Custom ladder boxes. SmartCap campers. APT tools. Equipment for the workday and the way out, backed by a real parts counter.
Work trucks. Weekend builds. Real people behind both.
Equipment spotlight
Workday to weekendSmartCap EVO Sport
Family owned since 1960Custom ladder boxesSmartCap campersAPT air tools
Featured equipment
Real equipment. Ready for your build.
Explore SmartCap truck caps, professional air tools and off-road lighting. View listed prices or request a quote for your setup.
Purpose-built equipment
Built around your truck.
Custom storage. Pickup builds. Professional tools. Explore equipment selected for the way you work and get away.
01 / On the job
Custom ladder boxes
Ladder-box solutions for bucket trucks, scoped around your vehicle and storage needs.
Plan your ladder box02 / Beyond the jobsite
SmartCap campers
Explore a SmartCap setup for your pickup, daily work and time off the pavement.
Find your setup03 / In the shop
APT air tools
Looking for APT tools? Send us the model or application and we’ll confirm options, pricing and availability.
Explore APT tools04 / The finishing touches
More utility & off-road
Have a specific accessory or unusual application in mind? Let’s work through it together.
Explore specialty equipmentTwo ways to order
Shop online. Or build a quote.
A clear next step for every product, with real people ready to help.
Lighting & accessories
Choose a product, review its price and availability, then use the product page to continue to online checkout when available.
Shop lighting & accessories →SmartCap, APT & custom ladder boxes
Send the model or application and your truck or tool details. Our team will review fitment, confirm price and availability, and discuss the next step before you order.
Start an equipment quote →Need to discuss timing? Call (626) 334-0271. Delivery and installation arrangements are confirmed with your quote.
Family owned since1960
Azusa, California
Independent. Experienced. Local.
Real people. Real truck knowledge.
Family owned since 1960, Triangle Truck Parts brings parts-counter experience to your next work truck or weekend build. Tell us what you’re building. We’ll help work through the fitment, equipment and sourcing.
Talk to our teamFor contractors & fleet buyers
Commercial truck equipment.
Built around the work.
Custom storage, pneumatic tools and lighting for your work-truck application. Share your vehicle, quantities and equipment needs with our Azusa parts team.
Let’s build your quote
Your next build starts here.
Have a truck, a tool or an idea in mind? Let’s work through it together.
Practical buying guides
A better starting point for your build.
Compare the details, understand the application and know what to ask before ordering.
SmartCap buying guide
SmartCap EVO Sport vs. Adventure: What to Compare
Compare side access, storage needs and fitment before choosing your truck cap.
Read the guide →
APT tool buying guide
How to Choose an APT Pneumatic Tool for Your Job
Match the application, air supply and tool configuration before requesting an APT quote.
Read the guide →PLAN.
BUILD.
Commercial truck storage
Custom Ladder Boxes: What to Measure Before You Order
A practical quote checklist for work-truck ladder storage, access and mounting requirements.
Read the guide →The Truck Journal