Pro Tips, News & Events

Diesel Engine Idling Rough: Causes and Fixes
Jun 4, 2026

Diesel Engine Idling Rough: Causes and Fixes

Exploring the most common rough idle causes for diesel machinery, from clogged fuel filters and bad injectors to low compression. Learn the signs like shaking or stalling and how to diagnose the problem, starting with simple fixes.

Mini, Small or Large? How Do I Choose CAT Excavator Sizes?
Jun 4, 2026

Mini, Small or Large? How Do I Choose CAT Excavator Sizes?

Caterpillar® excavators are versatile machines for construction, mining, landscaping applications and municipal works. Its lineup spans everything from compact minis to massive machines. With the right size and setup, a single machine can take on all kinds of tasks, saving you time, labor and fuel across the board. But with so many options, how do you choose the right one? This CAT excavator sizes guide helps you narrow the search and get to work faster.

10W-30 vs 15W-40: Which One for Diesel Equipment?
Jun 3, 2026

10W-30 vs 15W-40: Which One for Diesel Equipment?

Can 10W-30 replace 15W-40 in diesel equipment? The short answer is yes — but only under certain conditions. This guide explains when each grade makes sense, covering cold starts, heavy loads, oil pressure, fuel economy, and common mistakes. It also includes a quick comparison chart, service tips, and an FAQ for equipment owners and mechanics.

10W-30 vs 5W-30: What Is the Difference?
Jun 3, 2026

10W-30 vs 5W-30: What Is the Difference?

In the 10w30 vs 5w30 debate, the key difference is cold-start protection. 5W-30 oil is thinner at low temperatures, lubricating vital engine parts and turbos faster. While both perform identically once hot, choosing the right one is key.

Forklift Warning Lights Every Operator Needs to Know
Jun 3, 2026

Forklift Warning Lights Every Operator Needs to Know

Did you spot a flashing dashboard light on your forklift and wonder whether to keep moving or stop? Forklift warning light symbols are crucial for maintaining safety, efficiency and operational reliability. Only if you understand these lights can you prevent costly repairs and accidents. Let’s learn to read these symbols!

CK-4 vs CJ-4: Which Is Better for Heavy Equipment?
Jun 2, 2026

CK-4 vs CJ-4: Which Is Better for Heavy Equipment?

The FridayParts Team specializes in heavy equipment maintenance, diesel engine systems, and aftermarket replacement parts for construction, agricultural, mining, and industrial machinery. With extensive experience supporting excavators, loaders, bulldozers, generators, and other off-road equipment, the team provides practical maintenance insights to help equipment owners improve reliability, reduce downtime, and extend machine service life.

John Deere 325G Everything You Need to Know
Jun 2, 2026

John Deere 325G Everything You Need to Know

The John Deere 325G is a compact track loader manufactured by John Deere Construction since 2015. It blends the power of a larger machine with the nimbleness needed for tight spaces. Its rubber tracks, vertical lift design, smooth joystick controls and powerful hydraulics make it a versatile and stable performer on rough or sensitive terrains.

Common Signs of a Bad Torque Converter Solenoid
Jun 2, 2026

Common Signs of a Bad Torque Converter Solenoid

Recognizing the signs of a bad torque converter solenoid is crucial for preventing major transmission damage. A faulty solenoid can cause overheating, sluggish performance, and stalling. Learn what causes it to fail and how to test it.

Ford P1000 Code: Meaning, Causes & How to Fix It
Jun 1, 2026

Ford P1000 Code: Meaning, Causes & How to Fix It

Ford P1000 means the OBD-II readiness monitors have not completed their self-tests. Common causes include battery disconnection, recently cleared codes, incomplete drive cycles, and unresolved fault codes. Follow this guide to understand the code, complete the Ford drive cycle, and clear P1000 properly.

What’s the Difference Between GL-4 vs. GL-5 Gear Oil?
Jun 1, 2026

What’s the Difference Between GL-4 vs. GL-5 Gear Oil?

Choosing between GL-4 vs GL-5 gear oil is critical for your machinery’s health. GL-5 has twice the extreme pressure additives for hypoid gears, while GL-4 protects transmissions with sensitive brass or bronze parts. Learn which to use.

Fuel Rail Pressure Sensor Everything You Should Know
Jun 1, 2026

Fuel Rail Pressure Sensor Everything You Should Know

A fuel rail pressure sensor is also called a fuel pressure sensor or a high-pressure sensor. Its main function is to monitor the pressure inside the fuel rail. The fuel rail is a cylindrical or rectangular metal tube that connects the engine to the fuel system.

John Deere 4630 Specs and Parts Lookup
May 31, 2026

John Deere 4630 Specs and Parts Lookup

This guide provides a deep dive into the John Deere 4630 specs, covering its production history, innovative features like the Sound-Gard cab, and detailed technical data. Find everything you need to know to maintain this classic tractor.