DEF Fluid, Oils, Lubricants & Fleet Supplies – Monticello, NY | DEF Warehouse

Serving Sullivan County with Bulk & Packaged DEF, Oils, Antifreeze & Shop Supplies – Free Local Delivery

Need a trusted source for Diesel Exhaust Fluid (DEF) and automotive service products in Monticello, NY? DEF Warehouse is your go-to partner for fast, reliable delivery of DEF fluid, motor oils, lubricants, antifreeze, washer fluid, and essential shop supplies—serving fleets, municipalities, contractors, and repair shops throughout Sullivan County.

Whether you’re operating in transit, public works, construction, or commercial fleet services, we deliver the products you depend on—quickly and affordably, with free shipping in Monticello and surrounding areas.

Our DEF is API-certified and ISO 22241-compliant, delivered in your preferred format:

   •    Bulk DEF pump-in service

   •    330-gallon DEF totes

   •    55-gallon drums

   •    2.5-gallon jugs (case-packed)

Our DEF supports diesel-powered buses, trucks, construction equipment, and government vehicles to help meet emissions regulations and keep engines running clean.

 Our full product line of lubricants keeps engines, hydraulics, and drivetrains running strong:

   •    Diesel engine oil (CK-4, FA-4, 15W-40, 10W-30)

   •    Gasoline motor oil (SP, GF-6, 5W-30, 0W-20)

   •    Hydraulic fluid, gear oil, ATF

   •    Grease (multi-purpose, high-temp, HD)

Bulk delivery or packaged containers available for commercial or industrial use.

We offer top-tier antifreeze solutions to meet all seasonal needs:

    •    Conventional green antifreeze

    •    Extended-life coolants (ELC)

    •    OAT/HOAT formulas

    •    Concentrates & pre-mixed options

💧 Windshield Washer Fluid

Year-round visibility starts with dependable washer fluids:

    •    Freeze-resistant winter blends

    •    All-season formulas

    •    Available in drums, totes, and case quantities

Ideal for diesel and gasoline fleets operating in the cold, hilly terrain of Sullivan County.

Your shop can’t run efficiently without the basics—we deliver them all:

   •    Absorbents, spill kits, floor dry

   •    Brake cleaner, degreasers, solvents

   •    PPE, nitrile gloves, shop towels

   •    Funnels, DEF hoses, drum pumps, and accessories

DEF Warehouse delivers directly to:

    •    Monticello

    •    Liberty

    •    Fallsburg

    •    Wurtsboro

    •    Rock Hill

    •    White Lake

    •    Woodridge

    •    Bethel

    •    Livingston Manor

Whether you’re just off Route 17 or servicing routes around the Catskill Mountains, we’re ready to support your operations with prompt service and zero delivery fees.

   •    Trucking and port logistics

   •    Municipal DPWs and sanitation

   •    Auto repair and quick lube shops

   •    School bus and transit depots

   •    Warehousing and distribution centers

   •    Contractors, paving, and marine operations

    •    ✅ Free delivery in Monticello & surrounding towns

    •    ✅ Bulk & packaged DEF, oils & fluids

    •    ✅ Trusted by municipalities, public works & fleets

    •    ✅ Easy ordering through our online catalog

    •    ✅ Professional support & competitive pricing

Get started with DEF Warehouse today for high-quality, competitively priced fluids and supplies—delivered straight to your facility.

    •    Phone: 855-228-9333

    •    Email: sales@defwarehouse.com

    •    Website: www.defwarehouse.com

Browse our online catalog and get the fluids and supplies you need delivered straight to your facility or garage in Monticello.