L.I. Diesel Guys

L.I. Diesel Guys Long Island Diesel Service & Repair. Servicing trucks, heavy equipment & more. We also service gas engines. Mobile service and repair available.

Precision that keeps you moving. ⚙️Every diagnosis, every repair, every part. Done right so your truck stays on the road...
09/24/2026

Precision that keeps you moving. ⚙️

Every diagnosis, every repair, every part. Done right so your truck stays on the road and earning.

That's the standard. That's LI Diesel Guys.

📞 631-823-1000
🌐 lidieselguys.com

Meet the guys behind LI Diesel Guys. First up: Jon. 👋Jon Guidi, Founder & CFO.Two decades of business and management exp...
09/22/2026

Meet the guys behind LI Diesel Guys. First up: Jon. 👋

Jon Guidi, Founder & CFO.

Two decades of business and management experience. During the pandemic, he teamed up with Mike to build the diesel shop Long Island didn't have yet.

The result? The area's go-to for diesel truck service and customization. 🔧

📞 631-823-1000

A big repair shouldn't have to wait. 💳We offer 6 months promotional financing with the Synchrony Car Care credit card, o...
09/19/2026

A big repair shouldn't have to wait. 💳

We offer 6 months promotional financing with the Synchrony Car Care credit card, on purchases of $199 or more.

✅ Fix your truck now
✅ Pay over time

Ask us how, or apply at lidieselguys.com

📞 631-823-1000

09/16/2026

Tracks off. Undercarriage exposed. 🔧

Heavy equipment doesn't scare us. When your machine goes down, we get it back to work. 🚜

📞 631-823-1000

New to LI Diesel Guys? Start here. 👇Your first visit includes:🔍 A comprehensive inspection of your truck🗺️ A long-term p...
09/15/2026

New to LI Diesel Guys? Start here. 👇

Your first visit includes:
🔍 A comprehensive inspection of your truck
🗺️ A long-term plan to keep it running right

No guesswork. No upsells. Just an honest look at where your truck stands.

Book your first visit today. 🔧

📞 631-823-1000

Factory trained. Dealer certified. ✅🔧 Ford Master Technician🏅 Ford Professional Service Network, Elite Status🔩 Ford Mast...
09/13/2026

Factory trained. Dealer certified. ✅

🔧 Ford Master Technician
🏅 Ford Professional Service Network, Elite Status
🔩 Ford Master Parts & Service Management
📋 NYS Registered Repair & Inspection Station
🚜 Kubota Authorized Engine Repair Center

Dealer-level expertise with small-shop trust, all under one roof.

📞 631-823-1000

09/10/2026

Cold weather is coming. Is your fuel ready? ❄️

Water in your diesel is a silent killer. 💧

As temps drop, moisture in the tank can wreck your injectors and fuel pump. And that gets expensive fast.

Can't remember your last fuel filter or water separator service?

It's due. Let's get ahead of it. 🔧

📞 631-823-1000

Truck down? Let's get you back to business. 🚛⏱️ Don't wait weeks for the dealer✅ Quick appointments, fast turnaround🔧 Al...
09/08/2026

Truck down? Let's get you back to business. 🚛

⏱️ Don't wait weeks for the dealer
✅ Quick appointments, fast turnaround
🔧 All Ford light, medium, and heavy duty

Small business or large fleet, we keep you moving.

Downtime costs money. Let's fix that.

📞 631-823-1000

09/04/2026

Diesel is what we do. 🛠️

Trucks, fleets, and equipment. Old or new, we've got it.

🔧 Factory-trained technicians
💻 Dealer-level diagnostics
🔩 OEM parts
✅ 2-year, unlimited-mileage warranty on most repairs

Long Island trusts us to keep them running. 🚛

📞 631-823-1000

Your diesel is trying to tell you something. 👂Swipe for the 5 signs it needs to be seen 👉⚠️ Warning light on🐢 Loss of po...
09/02/2026

Your diesel is trying to tell you something. 👂

Swipe for the 5 signs it needs to be seen 👉

⚠️ Warning light on
🐢 Loss of power
💨 Excess smoke
🔑 Hard starts
⛽ Filling up more than usual

Catch it early, save yourself the big repair.

Spot any of these? Let's take a look. 🔧

📞 631-823-1000

Address

7 15th Street
Bohemia, NY
11779

Opening Hours

Monday 7am - 4pm
Tuesday 7am - 4pm
Wednesday 7am - 4pm
Thursday 7am - 4pm
Friday 7am - 4pm
Saturday 8am - 1pm

Telephone

+16318231000

Website

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