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Motorcraft OEM Outlet To Thermostat EPDM Heater Hose KM-6844
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Motorcraft OEM Outlet To Thermostat EPDM Heater Hose KM-6844
Ford OEM fit — no trimming, no adapter fittings required
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Specifications
Frequently Asked Questions
We're always here to help. If you can't find your answer, ask Rydon - our AI assistant will help you out.
Is Motorcraft KH-337 / KH-536 a direct OEM replacement or will I need to trim or adapt it?
Motorcraft heater hoses are Ford OEM service parts — same part Ford dealers install. They are pre-formed to the factory routed length and shape for your specific application, so no trimming, splicing, or adapter fittings are needed.
Why does KH-536 have three end diameters while KH-337 only has two?
KH-536 is a branched (tee) hose with a Branch Quantity of 2, meaning it has two outlet ends plus the inlet — three connection points total. KH-337 is a straight or single-bend hose with one inlet and one outlet. Check your vehicle's routing diagram before ordering to confirm which configuration your system uses.
What does EPDM mean and is it better than the original rubber hose on my Ford?
EPDM (Ethylene Propylene Diene Monomer) is the same elastomer Ford specifies for factory heater hoses. It resists coolant chemistry, ozone, and heat better than older neoprene or plain rubber hoses, and it maintains flexibility at low temperatures. If your original hose is cracking or feels spongy, the Motorcraft EPDM replacement is the exact-spec upgrade.
What is the working pressure rating on these hoses and is that enough for a pressurized cooling system?
Both KH-337 and KH-536 are rated to 304.58 psi working pressure. A typical Ford pressurized cooling system runs 13–16 psi at the radiator cap, so these hoses are rated to more than 18× normal operating pressure — well within safe margin for a factory heater circuit.
Product Specifications
No specifications available
Tap to zoom1 / 2Part # KM-6844Motorcraft OEM Outlet To Thermostat EPDM Heater Hose KM-6844
Dealer charges $52.13SAVE 44%— You save $23.18
Motorcraft OEM Outlet To Thermostat EPDM Heater Hose KM-6844
Shipping calculated at checkout · Est. arrival Fri, Aug 14 to Fri, Aug 14
Ships To:Key Features
Motorcraft OEM Outlet To Thermostat EPDM Heater Hose KM-6844
Dealer charges $52.13SAVE 44%— You save $23.18
Motorcraft OEM Outlet To Thermostat EPDM Heater Hose KM-6844
Shipping calculated at checkout · Est. arrival Fri, Aug 14 to Fri, Aug 14Ships To:Key Features
About This HVAC Heater Hose
This Motorcraft automotive component is engineered to meet or exceed OEM specifications for reliable performance and long service life.
Key Features
- Meets or exceeds OEM specifications
- Direct-fit replacement design
- Rigorously tested for durability
- Professional-grade construction
- Backed by manufacturer warranty
Signs This Part Needs Replacement
- •Unusual noises from the component area
- •Decreased vehicle performance
- •Warning lights on dashboard
- •Visible wear or damage
- •Failed vehicle inspection
Motorcraft
Trusted Automotive Brand
Motorcraft is a trusted manufacturer of quality automotive parts.
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