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Top DEF Distributor Long Island
Your Trusted Source for DEF Fluid, Oils, Lubricants & More in Long Island--DEF Warehouse
Welcome to DEF Warehouse, Long Island’s trusted supplier of Diesel Exhaust Fluid (DEF), motor oils, industrial lubricants, windshield washer fluid, antifreeze, and shop supplies. We proudly serve commercial fleets, automotive shops, municipalities, and equipment operators across Nassau County, Suffolk County, and the greater Long Island area—including Hempstead, Brookhaven, Islip, Huntington, Babylon, Oyster Bay, and more.
Whether you operate a large fleet in Smithtown, run a shop in Freeport, or manage heavy machinery in Riverhead, DEF Warehouse has the products and logistics to keep your business moving—quickly and affordably.
Premium DEF Fluid for Long Island Fleets and Shops
DEF Warehouse specializes in delivering high-purity, API-certified Diesel Exhaust Fluid to customers across Long Island. Our DEF meets all ISO 22241 specifications and is compatible with all SCR systems.
We offer:
• Bulk DEF delivery in Nassau and Suffolk Counties
• 330-gallon totes
• 55-gallon drums
• 2.5-gallon jugs and cases
From the highways of Hempstead to the industrial parks of Ronkonkoma and the marine yards in Port Jefferson, we supply DEF to trucking companies, bus depots, municipal garages, and agriculture businesses across Long Island.
Need emergency DEF delivery? We cover areas like Long Beach, Glen Cove, Massapequa, and Medford with fast turnaround times.
Engine Oils & Lubricants – Delivered Across Long Island
DEF Warehouse carries a wide range of engine oils and industrial lubricants, making us the go-to source for Long Island mechanics, contractors, and fleet operators. Our inventory includes:
• Heavy-duty diesel engine oils (CK-4, FA-4)
• Passenger car motor oils (SN, SP, GF-6)
• Hydraulic fluids
• Gear oils
• ATF & transmission fluids
• Grease (NLGI 1, 2, synthetic, and high-temp)
We proudly deliver to shops in Hicksville, Valley Stream, Bay Shore, Brentwood, Farmingdale, and Amityville, supplying premium brands as well as cost-effective private-label options.
Whether you’re maintaining a commercial fleet in Garden City or a construction crew in Holbrook, we help protect your equipment and reduce downtime.
Antifreeze & Windshield Washer Fluid – Year-Round Protection for Long Island Weather
Long Island’s climate demands year-round fluid readiness. That’s why DEF Warehouse stocks and delivers:
• All-season washer fluids
• Winter blend washer fluids (freeze protection to -20°F)
• Pre-mixed and concentrate antifreeze
• Extended-life coolants (heavy-duty & automotive)
Our delivery routes include Patchogue, West Babylon, Levittown, Selden, and East Meadow, ensuring your vehicles are equipped for cold winters and humid summers. We serve everything from car dealerships in Rockville Centre to DPWs in Hauppauge.
DEF Fluid Long Island
Best DEF Fluid Distributor Long Island
Shop Supplies for Garages, Fleets & Municipal Yards
Your shop can’t run without the right supplies. DEF Warehouse offers a large selection of essential shop and garage products, including:
• Absorbent pads and mats
• Spill response kits
• Drain pans, funnels, and pumps
• Rags, nitrile gloves, and PPE
• Degreasers, brake cleaners & industrial sprays
• Oil dry and waste containment supplies
We deliver across Lindenhurst, Oceanside, Riverhead, Manorville, and all throughout Long Island. Whether you’re a single-bay shop or a 50-truck fleet operation, we keep you stocked.
Fast, Reliable Delivery Throughout Long Island
We serve:
Nassau County:
• Oyster Bay
• Freeport
• Valley Stream
• Long Beach
• Mineola
• Glen Cove
• Garden City
• Levittown
• Rockville Centre
• Massapequa
Suffolk County:
• Islip
• Babylon
• Smithtown
• Brentwood
• Bay Shore
• Patchogue
• Ronkonkoma
• Port Jefferson
• Riverhead
From Manhattan to Montauk, we are ready to deliver the supplies you need—on time, every time.me.et your fluids and supplies without delay.
Industries We Serve on Long Island
We support a wide range of industries across Long Island, including:
• Trucking & Transportation Fleets
• Municipal Public Works & Transit Authorities
• Construction & Heavy Equipment
• Auto Repair Shops & Dealerships
• Farming & Landscaping Operations
• Waste Management & Recycling Fleets
• Marine & Port Service Providers
Whether you’re operating box trucks in Bay Shore, fire trucks in Hicksville, or fishing boats in Montauk, DEF Warehouse helps you meet fluid and maintenance demands.
Why Long Island Businesses Choose DEF Warehouse
Our customers stick with us because we deliver more than just fluids—we deliver value, reliability, and service. Here’s what sets us apart:
• Local Long Island delivery coverage
• Bulk order discounts
• Same-day or next-day delivery options
• Knowledgeable, friendly service
• Custom delivery scheduling
• Easy phone or online ordering
We work with fleets and facilities in Amityville, East Northport, Coram, Sayville, and Centereach, giving each client a tailored service experience.
Contact DEF Warehouse – Serving All of Long Island
Looking for a dependable supplier of DEF fluid, motor oils, lubricants, antifreeze, and shop supplies in Long Island? DEF Warehouse is here to help you stay stocked, compliant, and operational.
Request a Quote or Place an Order Today
• Phone: 855-228-9333
• Email: sales@defwarehouse.com
• Online Orders: www.defwarehouse.com
Let us know your location, volume needs, and preferred delivery window—we’ll handle the rest.
Serving Long Island with Pride
From Hempstead to Riverhead, from Freeport to Port Jefferson, DEF Warehouse is the name Long Island trusts for fast, affordable, and high-quality DEF fluid, oils, and shop supplies.
