Heavy-Duty Grease for Trucks, Trailers & Equipment

Grease isn’t just a lubricant—it’s your first line of defence against wear, corrosion and component failure in heavy-duty service trucks, trailers and equipment. At Custom Truck One Source we supply premium greases engineered specifically for fleet, vocational and equipment-body use—where high loads, extreme temperatures, and dirty environments are the norm.

Why the Right Grease Matters

Heavy-duty vehicles demand greases that can stand up to shock loading, high-speed bearings, water exposure and a wide range of temperatures. Industry guidance indicates that many fleets should use a grease meeting the GC-LB specification (for chassis and wheel bearings) or other OEM-recommended specs, typically in NLGI grade 2 for most heavy-duty points.  Using the wrong grease or a generic product can lead to premature bearing wear, increased maintenance costs and reduced uptime.

What to Look For

When specifying grease for your trucks or equipment bodies, key factors include thickener type (lithium complex, polyurea, etc.), consistency (based on NLGI grade), extreme pressure (EP) and water-wash resistance. For example, premium formulations describe themselves as “virtually waterproof, stands up to high temperatures and stays soft in very low temperatures.”  Choosing a grease that meets or exceeds OEM requirements ensures protection and longevity.

Designed for Fleet & Service Use

Whether you’re greasing fifth wheels, kingpins, wheel bearings, chassis lube points or service-body hinges, the right grease gives you fewer re-lubrication cycles, less downtime and stronger service intervals. Our supply includes heavy-duty lubricants suitable for Class 6-8 trucks, utility bodies, flatbeds, trailers and mixed-fleet operations.

Why Choose Custom Truck One Source

With decades of vocational vehicle experience and national inventory of chemicals, lubricants and service components, Custom Truck One Source offers more than just grease. You’ll get:

• Fleet-ready greases meeting heavy-duty specs and OEM compatibility

• Parts specialists familiar with truck body, trailer and equipment lubrication requirements

• Reliable availability and fast shipping to get your vehicles back into service

Ready to Select the Right Grease?

Browse our grease selection below and filter by application (wheel bearings, chassis, trailer, body lube points), thickener type, traffic load and environment. If you’re unsure which grease fits your build or fleet, contact our parts team with your vehicle make, model, duty cycle, ambient environment and lube points—we’ll help you match the correct solution.