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    Dayco 81011 ( Filler Tank ) Radiator Coolant Hose
    • Free shipping

          Dayco 81011 ( Filler Tank ) Radiator Coolant Hose

          SKU: 580|81011
          Dayco Radiator Coolant Hose — OE-grade replacement for reliable performance. Fits multiple vehicles.
          0.0
          Dayco
          Vehicle Specific
          Check if this part fits your vehicle.
          • $23.00
          In stock (2 items available)
          OR
          1-year warrantyAll parts covered
          Secure checkoutSSL encrypted
          Free returns30-day no hassle
          Same-day shippingOrder before 3 PM EST

          Dayco 81011 ( Filler Tank ) Radiator Coolant Hose

          Key Specifications

          • Brand: Dayco
          • Manufacturer Part Number: 81011
          • Part Type: Radiator Coolant Hose
          • Position: Filler Tank
          • Condition: New
          • Warranty: 1 Year

          Vehicle Compatibility

          Position: Filler Tank

          Fits select vehicle applications. Please ener your vehicle or check the Fitment section below to confirm compatibillity.

          Always verify vehicle compatibility using the fitment chart below before ordering.

          Address coolant leaks, swelling, and overheating concerns with this Dayco Radiator Coolant Hose. It is designed to provide secure coolant flow and dependable sealing, helping support stable engine temperatures.

          Why replace this part?Aging hoses can crack, swell, soften, or leak, leading to coolant loss and overheating. Replacing worn hoses helps restore reliable coolant circulation and reduces the risk of roadside failure.

          Key Features & Benefits

          • OE-style fit - designed to match original routing and connection points
          • Heat and pressure resistance - built for demanding cooling system conditions
          • Secure sealing - helps maintain consistent coolant flow and leak-free performance
          • Application-specific design for proper installation
          Product Overview

          Build Quality & Materials

          • Constructed with materials selected for temperature, pressure, and chemical resistance.
          • Manufacturing controls help maintain consistent wall thickness and fit.
          • Designed to resist aging, cracking, and softening over time.

          Installation Notes

          • Replace clamps if worn and clean connection points before installation.
          • Refill and properly bleed the cooling system per service procedures.
          • Inspect for leaks after reaching operating temperature.

          Why Choose Dayco?

          Dayco is a trusted global supplier of belts, hoses, and engine system components, known for OE-level engineering and dependable performance. Choosing Dayco means proven quality, reliable fit, and long service life in real-world driving conditions.

          • OE-level engineering and quality standards
          • Designed for dependable fit, function, and durability
          • Broad coverage for domestic and import applications
          • Trusted by professional technicians

          Dayco Engineering Advantage

          Dayco products are developed using advanced engineering, material science, and validation testing to help ensure precise fit and consistent performance. Continuous design improvements focus on durability, noise reduction, and real-world reliability.

          Product Information

          Interchange Part Numbers

          • 31608
          • 500
          • 549
          • RH13
          • C6402
          • 1107
          • 25249
          • C6402
          • 1719996
          • FH9
          • 81011
          • A9AZ-8260-A
          • 1107
          • 25249
          • 26402
          • 52007
          • 5007
          • 2350-15-185
          • 2350-15-186
          • 2350-15-187
          • 5M7
          • BH601
          • KA074
          • FM01
          • NA000470
          • 507
          • 102
          • 1107
          • 1082A64H01
          • 5007
          • 5008
          • FC500
          • 1107
          • 972F2-37
            • SKU
              580|81011
            • Weight
              1 lbs
          • Brand
            Dayco
          • Manufacturer
            Dayco
          • MPN
            81011
          • EAN
            0038244142552
          • Fitment Type
            Direct Replacement
          • Part Type
            Radiator Coolant Hose
          • Interchange Part Number
            31608; 500; 549; RH13; C6402; 1107; 25249; C6402; 1719996; FH9; 81011; A9AZ-8260-A; 1107; 25249; 26402; 52007; 5007; 2350-15-185; 2350-15-186; 2350-15-187; 5M7; BH601; KA074; FM01; NA000470; 507; 102; 1107; 1082A64H01; 5007; 5008; FC500; 1107; 972F2-37
          • Mfr Label
            Flex Radiator Hose

          Shipping Policy – DTautoparts

          We ship all orders from our U.S. warehouses with USPS, UPS, or FedEx.

          Processing Time

          • Orders placed before 3 PM EST ship the same day

          • Others ship next business day

          Transit Time

          • Standard shipping: 2–5 business days

          • Expedited shipping: 1–3 business days (optional at checkout)

          Shipping Rates

          • Free standard shipping on all orders

          • Expedited options available at checkout

          Tracking

          All orders include tracking information, emailed automatically once shipped.

          Lost Packages

          If a package is lost in transit, we will:

          • Start an investigation with the carrier

          • Resend the order or issue a full refund if confirmed lost

          Incorrect Addresses

          If the address is incorrect when the order ships:

          • Carrier may return the package

          • We can resend (buyer pays reship fee) or refund the order

          Return Policy – DTautoparts

          At DTautoparts, we want every customer to be fully satisfied with their purchase.
          If an item does not fit your vehicle or you are not fully satisfied, we offer hassle-free returns.

          Return Window

          • Returns accepted within 30 days of delivery.

          • Items must be returned in their original condition unless the item was defective or damaged on arrival.

          Free Returns

          • If the part doesn’t fit, or arrives damaged, we provide a free return shipping label.

          Customer-Responsibility Returns

          (used, installed, incorrect item ordered, changed mind)

          • Buyer pays return shipping.

          • Item must be unused, uninstalled, and in original packaging.

          Incorrect / Defective Parts

          If the part is faulty, damaged, or the wrong item was sent:

          • We will provide a free return label

          • And issue a full refund OR send a replacement

          Refund Time

          Refunds are processed within 2–3 business days after the returned item is received and inspected.

          Customer reviews
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          We accept the following payment methods:

          Accepted payment methods


          Warranty

          All parts sold by DTautoparts LLC are backed by a 1-year warranty.

          What’s Covered

          • Manufacturing defects

          • Premature failure

          • Broken components not caused by external damage

          What’s Not Covered

          • Normal wear and tear

          • Improper installation

          • Damage from accidents or abuse

          • Modified or altered parts

          How to Request a Warranty Claim

          Please contact us with:

          • Order number

          • Description of the issue

          • Photos or videos of the problem

          We will:

          • Review the claim in 24–48 hours

          • Provide a replacement or refund if approved

          • Fitment Type
            Vehicle Specific
          YearMakeModelSubmodelNotes
          1971Fiat124Base (1.6L L4)FITMENT NOTES: [Position: Lower - Radiator To Thermostat; ]
          1971Fiat124Spider (1.6L L4)FITMENT NOTES: [Position: Lower - Radiator To Thermostat; ]
          1971MazdaR100Base (1.1L R2)FITMENT NOTES: [Position: Upper; ]
          1971Mazda1200Base (1.2L L4)FITMENT NOTES: [ Position: Lower ] OR FITS: [ Position: Upper ]
          1972Audi100 SeriesBase (1.9L L4 OHV)FITMENT NOTES: [Position: Lower - Pipe To Radiator; ]
          1972Audi100 SeriesBase (1.9L L4)FITMENT NOTES: [Position: Lower - Pipe To Radiator; ]
          1972Audi100 SeriesGL (1.9L L4 OHV)FITMENT NOTES: [Position: Lower - Pipe To Radiator; ]
          1972Audi100 SeriesGL (1.9L L4)FITMENT NOTES: [Position: Lower - Pipe To Radiator; ]
          1972Audi100 SeriesLS (1.9L L4 OHV)FITMENT NOTES: [Position: Lower - Pipe To Radiator; ]
          1972Audi100 SeriesLS (1.9L L4)FITMENT NOTES: [Position: Lower - Pipe To Radiator; ]
          1972Fiat124Base (1.6L 97cid L4)FITMENT NOTES: [Position: Lower - Radiator To Thermostat; ]
          1972Fiat124Base (1.6L L4)FITMENT NOTES: [Position: Lower - Radiator To Thermostat; ]
          1972Fiat124Spider (1.6L 97cid L4)FITMENT NOTES: [Position: Lower - Radiator To Thermostat; ]
          1972Fiat124Spider (1.6L L4)FITMENT NOTES: [Position: Lower - Radiator To Thermostat; ]
          1972MazdaR100Base (1.1L R2)FITMENT NOTES: [Position: Upper; ]
          1973Fiat124Base (1.6L 97cid L4)FITMENT NOTES: [Position: Lower - Radiator To Thermostat; ]
          1973Fiat124Base (1.6L L4)FITMENT NOTES: [Position: Lower - Radiator To Thermostat; ]
          1973Fiat124Spider (1.6L 97cid L4)FITMENT NOTES: [Position: Lower - Radiator To Thermostat; ]
          1973Fiat124Spider (1.6L L4)FITMENT NOTES: [Position: Lower - Radiator To Thermostat; ]
          1973Mercedes-Benz280Base (2.8L L6)FITMENT NOTES: [Position: Lower - Pipe To Water Pump; ]
          1973Mercedes-Benz280CBase (2.8L L6)FITMENT NOTES: [Position: Lower - Pipe To Water Pump; ]
          1975Audi100 SeriesLS (1.9L L4)FITMENT NOTES: [Position: Lower - Pipe To Radiator; ]
          1976Audi100 SeriesLS (1.9L L4)FITMENT NOTES: [Position: Lower - Pipe To Radiator; ]
          1977Audi100 SeriesLS (1.9L L4)FITMENT NOTES: [Position: Lower - Pipe To Radiator; ]
          1981Saab900Base (2.0L L4 )FITMENT NOTES: [w/A.C.; Position: Upper - Pipe To Radiator; ]
          1981Saab900S (2.0L L4 )FITMENT NOTES: [w/A.C.; Position: Upper - Pipe To Radiator; ]
          1981Saab900Turbo (2.0L L4 GAS Turbocharged)FITMENT NOTES: [w/A.C.; Position: Upper - Pipe To Radiator; ]
          1982Saab900Base (2.0L L4 )FITMENT NOTES: [EngineVIN: 3; Position: Upper - Pipe To Radiator; ]
          1982Saab900S (2.0L L4 )FITMENT NOTES: [EngineVIN: 3; Position: Upper - Pipe To Radiator; ]
          1982Saab900Turbo (2.0L L4 GAS Turbocharged)FITMENT NOTES: [EngineVIN: 4; w/A.C.; Position: Upper - Pipe To Radiator; ]
          1983Saab900Base (2.0L L4 )FITMENT NOTES: [w/A.C.; Position: Upper - Pipe To Radiator; ]
          1983Saab900S (2.0L L4 )FITMENT NOTES: [w/A.C.; Position: Upper - Pipe To Radiator; ]
          1983Saab900Turbo (2.0L L4 GAS Turbocharged)FITMENT NOTES: [w/A.C.; Position: Upper - Pipe To Radiator; ]
          1985IsuzuImpulseBase (1.9L L4)FITMENT NOTES: [Position: Lower - Pipe To Engine; ]
          1985IsuzuImpulseBase (2.0L L4 Turbocharged)FITMENT NOTES: [Position: Lower - Pipe To Engine; ]
          1985Saab900Base (2.0L L4 )FITMENT NOTES: [w/A.C.; Position: Upper - Pipe To Radiator; ]
          1985Saab900S (2.0L L4 )FITMENT NOTES: [w/A.C.; Position: Upper - Pipe To Radiator; ]
          1985Saab900Turbo (2.0L L4 GAS Turbocharged)FITMENT NOTES: [w/A.C.; Position: Upper - Pipe To Radiator; ]
          1986IsuzuImpulseBase (1.9L L4)FITMENT NOTES: [Position: Lower - Pipe To Engine; ]
          1986IsuzuImpulseBase (2.0L L4 Turbocharged)FITMENT NOTES: [Position: Lower - Pipe To Engine; ]
          1986Saab900Base (2.0L L4 )FITMENT NOTES: [EngineVIN: J; w/A.C.; Position: Upper - Pipe To Radiator; ]
          1986Saab900S (2.0L L4 )FITMENT NOTES: [EngineVIN: J; w/A.C.; Position: Upper - Pipe To Radiator; ]
          1986Saab900S (2.0L L4)FITMENT NOTES: [EngineVIN: J; w/A.C.; Position: Upper - Pipe To Radiator; ]
          1987IsuzuImpulseBase (2.0L L4 Turbocharged)FITMENT NOTES: [Position: Lower - Pipe To Engine; ]
          1987Saab900Base (2.0L L4 )FITMENT NOTES: [EngineVIN: J; w/A.C.; Position: Upper - Pipe To Radiator; ]
          1987Saab900S (2.0L L4)FITMENT NOTES: [EngineVIN: J; w/A.C.; Position: Upper - Pipe To Radiator; ]
          1988IsuzuImpulseBase (2.0L L4 Turbocharged)FITMENT NOTES: [Position: Lower - Pipe To Engine; ]
          1988Saab900Base (2.0L L4 )FITMENT NOTES: [EngineVIN: J; w/A.C.; Position: Upper - Pipe To Radiator; ]
          1988Saab900S (2.0L L4)FITMENT NOTES: [EngineVIN: J; w/A.C.; Position: Upper - Pipe To Radiator; ]
          1991ToyotaMR2Turbo (2.0L 122cid L4 GAS Turbocharged)FITMENT NOTES: [Position: Upper - Pipe To Radiator; ]
          1991ToyotaMR2Base (2.2L L4 )FITMENT NOTES: [ Position: Lower - Pipe To Pipe (Front) ] OR FITS: [ Position: Lower - Pipe To Pipe (Rear) ] OR FITS: [ Position: Upper - Pipe To Radiator ]
          1992ToyotaMR2Turbo (2.0L 122cid L4 GAS Turbocharged)FITMENT NOTES: [Position: Upper - Pipe To Radiator; ]
          1992ToyotaMR2Base (2.2L L4 )FITMENT NOTES: [ Position: Lower - Pipe To Pipe (Front) ] OR FITS: [ Position: Lower - Pipe To Pipe (Rear) ] OR FITS: [ Position: Upper - Pipe To Radiator ]
          1993ToyotaMR2Turbo (2.0L 122cid L4 GAS Turbocharged)FITMENT NOTES: [Position: Lower - Pipe To Pipe; ]
          1993ToyotaMR2Base (2.2L L4 )FITMENT NOTES: [ Position: Lower - Pipe To Pipe ] OR FITS: [ Position: Upper - Pipe To Radiator ]
          1993NissanAltimaGLE (2.4L L4)FITMENT NOTES: [ Position: Lower - Thermostat To Pipe ]
          1993NissanAltimaGXE (2.4L L4)FITMENT NOTES: [ Position: Lower - Thermostat To Pipe ]
          1993NissanAltimaSE (2.4L L4)FITMENT NOTES: [ Position: Lower - Thermostat To Pipe ]
          1993NissanAltimaXE (2.4L L4)FITMENT NOTES: [ Position: Lower - Thermostat To Pipe ]
          1997NissanAltimaGLE (2.4L L4)
          1997NissanAltimaGXE (2.4L L4)
          1997NissanAltimaSE (2.4L L4)
          1997NissanAltimaXE (2.4L L4)
          2000Land RoverDiscoverySeries II (4.0L V8)FITMENT NOTES: [Position: Upper - Engine To Tee; ]
          2001Land RoverDiscoverySeries II LE (4.0L V8)FITMENT NOTES: [Position: Upper - Engine To Tee; ]
          2001Land RoverDiscoverySeries II SD (4.0L V8)FITMENT NOTES: [Position: Upper - Engine To Tee; ]
          2001Land RoverDiscoverySeries II SE (4.0L V8)FITMENT NOTES: [Position: Upper - Engine To Tee; ]
          2002Land RoverDiscoverySeries II SD (4.0L V8)FITMENT NOTES: [Position: Upper - Engine To Tee; ]
          2002Land RoverDiscoverySeries II SE (4.0L V8)FITMENT NOTES: [Position: Upper - Engine To Tee; ]
          2002LexusIS300Base (3.0L L6)FITMENT NOTES: [Position: Upper; ]
          2002LexusIS300Sportcross (3.0L L6)FITMENT NOTES: [Position: Upper; ]
          2002MiniCooperS (1.6L L4 GAS Supercharged)FITMENT NOTES: [Position: Upper - Pipe To Radiator; ]
          2003Land RoverDiscoveryHSE (4.6L V8)FITMENT NOTES: [Position: Upper - Engine To Tee; ]
          2003Land RoverDiscoveryS (4.6L V8)FITMENT NOTES: [Position: Upper - Engine To Tee; ]
          2003Land RoverDiscoverySE (4.6L V8)FITMENT NOTES: [Position: Upper - Engine To Tee; ]
          2003LexusIS300Base (3.0L L6)FITMENT NOTES: [Position: Upper; ]
          2003LexusIS300Sportcross (3.0L L6)FITMENT NOTES: [Position: Upper; ]
          2003MiniCooperS (1.6L L4 GAS Supercharged)FITMENT NOTES: [Position: Upper - Pipe To Radiator; ]
          2004Land RoverDiscoveryHSE (4.6L V8)FITMENT NOTES: [Position: Upper - Engine To Tee; ]
          2004Land RoverDiscoveryS (4.6L V8)FITMENT NOTES: [Position: Upper - Engine To Tee; ]
          2004Land RoverDiscoverySE (4.6L V8)FITMENT NOTES: [Position: Upper - Engine To Tee; ]
          2004LexusIS300Base (3.0L L6)FITMENT NOTES: [Position: Upper; ]
          2004LexusIS300Sportcross (3.0L L6)FITMENT NOTES: [Position: Upper; ]
          2004MiniCooperS (1.6L L4 GAS Supercharged)FITMENT NOTES: [Position: Upper - Pipe To Radiator; ]
          2005LexusIS300Base (3.0L L6)FITMENT NOTES: [Position: Upper; ]
          2005LexusIS300Sportcross (3.0L L6)FITMENT NOTES: [Position: Upper; ]
          2005MiniCooperS (1.6L L4 GAS Supercharged)FITMENT NOTES: [Position: Upper - Pipe To Radiator; ]
          2006MiniCooperS (1.6L L4 GAS Supercharged)FITMENT NOTES: [Position: Upper - Pipe To Radiator; ]
          2008MiniCooperS (1.6L L4 GAS Supercharged)FITMENT NOTES: [Position: Upper - Pipe To Radiator; ]
          1994NissanAltimaGLE (2.4L L4)FITMENT NOTES: [ Position: Lower - Thermostat To Pipe ]
          1994NissanAltimaGXE (2.4L L4)FITMENT NOTES: [ Position: Lower - Thermostat To Pipe ]
          1994NissanAltimaSE (2.4L L4)FITMENT NOTES: [ Position: Lower - Thermostat To Pipe ]
          1994NissanAltimaXE (2.4L L4)FITMENT NOTES: [ Position: Lower - Thermostat To Pipe ]
          1994ToyotaMR2Base (2.2L L4 )FITMENT NOTES: [ Position: Lower - Pipe To Pipe ] OR FITS: [ Position: Upper - Pipe To Radiator ]
          1994ToyotaMR2Turbo (2.0L 122cid L4 GAS Turbocharged)FITMENT NOTES: [ Position: Lower - Pipe To Pipe ] OR FITS: [ Position: Upper - Pipe To Radiator ]
          1995NissanAltimaGLE (2.4L L4)FITMENT NOTES: [ Position: Lower - Thermostat To Pipe ]
          1995NissanAltimaGXE (2.4L L4)FITMENT NOTES: [ Position: Lower - Thermostat To Pipe ]
          1995NissanAltimaSE (2.4L L4)FITMENT NOTES: [ Position: Lower - Thermostat To Pipe ]
          1995NissanAltimaXE (2.4L L4)FITMENT NOTES: [ Position: Lower - Thermostat To Pipe ]
          1995ToyotaMR2Base (2.2L L4 )FITMENT NOTES: [ Position: Lower - Pipe To Pipe ] OR FITS: [ Position: Upper - Pipe To Radiator ]
          There are more vehicles this part is compatible with. Check if it fits your vehicle.

          Frequently Asked Questions

          Does this part fit my vehicle?

          Use the Year/Make/Model selector at the top of the page.
          If unsure, contact us — we respond within minutes.

          Is this part new or used?

          All parts are brand-new, factory-fresh, and never used.

          Does this include hardware?

          If included, it will appear in the product images or description.
          If not listed, assume hardware is not included.

          What if the part doesn’t fit?

          No problem — we offer free returns on items that do not fit your vehicle.

          What warranty does this part come with?

          Every part includes a 1-year warranty.

          How fast do you ship?

          Orders before 3 PM EST ship the same day.

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