Keller Heartt Company

06/15/2026

Your gearbox lubricant might be the most overlooked food safety risk in your facility.

Because when auditors inspect a gearbox, they’re not just looking at the equipment. They’re looking at what’s inside it.

If the lubricant isn’t NSF H1 registered? That can become your non-conformance, even if no leak ever occurred.

We put together a practical guide on:

✅ Food-grade gear oil certifications
✅ Selecting the right viscosity grade
✅ Preventing wear, corrosion, and washdown damage
✅ Mineral vs. synthetic oils
✅ Top options from favorite brands

A solid resource for maintenance, reliability, and QA teams:

What is food-grade gear oil? Learn why NSF H1 and ISO 21469 certification matters, how to pick the right food-grade gear oil, and shop FUCHS and CASSIDA brands.

06/10/2026

Have questions? We’re here to help.

Our FAQ page covers many of the most common questions we hear—from ordering and shipping to product selection. And if you don’t see what you’re looking for, our team is always ready to provide clear, straightforward answers.

Visit our FAQ page here:
https://hubs.li/Q04hY8P90

Your questions help us serve you better—don’t hesitate to reach out.

06/04/2026

Quality fluids and lubricants—trusted since 1929.

From coolants to cutting oils and hydraulic fluids, we supply the metalworking products manufacturers rely on for precision, performance, and uptime.

✔ Proven quality
✔ Broad product selection
✔ Free shipping on every order

When your operation depends on consistency, start with fluids you can trust.

Check out our video: https://hubs.li/Q04hSZ5x0

Or explore our metalworking products: https://hubs.li/Q04hSLhy0

Welcome to the official YouTube channel of Keller Heartt.Explore o...

06/01/2026

At Keller-Heartt, we offer premium commercial trucking supplies at competitive prices—without cutting corners.

From Blue DEF® to TRUEGARD® and Shell®, our extensive catalog is designed to keep your fleet running smoothly. And with free shipping on every order, you get dependable products without added costs.

Explore our commercial truck supplies here: https://hubs.li/Q04hS_Kh0

05/28/2026

The wrong hydraulic fluid can quietly damage your pump—and lead to expensive downtime.

Here’s the quick breakdown to help you choose the right one:

• AW 32 — Best for light-duty hydraulics and forklifts
• AW 46 — Ideal for most industrial equipment, loaders, and presses
• AW 68 — Built for high-load systems and high-temperature environments

AW 46 is the most popular choice because it delivers reliable performance across the widest range of applications.

Watch the full YouTube short here: https://hubs.li/Q04hXRRz0

Not all hydraulic oils are the same—and choosing the right one matt...

05/26/2026

Real results from a real shop. 🏭

One of our customers was struggling with cutting oil that couldn't keep up on stainless steel — running slow, burning through inserts, and losing time on every job.

After switching to Truegard SWISS #148, they're now getting full-shift tool life on 304 and 316 SS — and cutting cycle times almost in half. It even handles brass and copper without staining.

The right lubricant isn't just a supply line item. It's a productivity decision.

05/06/2026

SCR system faults don’t usually start as major failures.
They start as small issues that get ignored: Low-quality DEF, contamination, or early-stage crystallization.

Then the warning lights show up.
Then the derates.
Then the downtime.

For fleets and diesel techs, an SCR system fault isn’t just a nuisance—it directly impacts uptime, emissions compliance, and operating costs. And in many cases, the root cause traces back to DEF handling and quality.

The teams that avoid these issues aren’t reacting to fault codes; they’re preventing them. They understand how SCR systems work, how DEF impacts performance, and how to catch problems before they escalate.

We put together a practical guide breaking down what an SCR system fault actually means, the most common causes, and how to fix and prevent it.

Worth a read if you’re responsible for keeping trucks on the road.

What is an SCR system fault? Learn the most common causes, how to fix SCR system faults, and how to prevent costly downtime with proper DEF handling.

05/05/2026

Keep your diesel engines running stronger, longer with Shell Rotella T6 5W‑40, a full synthetic heavy-duty engine oil built for tough conditions.

Featuring Triple Protection Plus™ technology, this oil fights wear, minimizes deposits, resists heat breakdown, and helps improve fuel economy compared to 15W-40 oils. It’s designed for trucks, delivery fleets, off-road machinery, and more.

✔ Heavy-duty diesel protection
✔ Excellent performance in extreme hot and cold conditions
✔ Helps keep engines clean and durable
✔ Meets or exceeds key API and OEM specs

Ideal for maintaining uptime and lowering overall operating costs.

Learn more about this product here: https://hubs.li/Q04dzBvV0

04/30/2026

If your diesel is idling for hours, it’s doing more than burning fuel. It’s accelerating wear.

Modern diesel engines can handle idling—but not without consequences.

If idling is part of your operation, protection matters.

Using a full synthetic like Shell Rotella T6 5W-40 helps maintain performance, resist fuel dilution, and control deposits under real-world conditions.

We break it all down here: https://hubs.li/Q04dzLYy0

Is idling bad for a diesel engine? Learn the real effects of diesel idling, common myths, and how to prevent wear, fuel loss, and carbon buildup.

04/29/2026

Brake jobs going sideways? It might not be your parts.

It might be what you’re cleaning them with. 👈

A lot of shops still treat carb cleaner and brake cleaner like they’re interchangeable. They’re not. And using the wrong one can lead to contaminated pads, reduced stopping power, and damaged components.

The difference between carb cleaner vs. brake cleaner comes down to formulation, residue, and purpose—and it directly impacts safety and your shop’s reputation. If you’ve ever grabbed the wrong can in a rush, our new article is worth a quick read.

Check out the full breakdown to make sure your team is using the right cleaner.

Wondering what the differences are between carb cleaner vs. brake cleaner? Our experts break down when to use each and how to avoid costly mistakes.