1 3/4" ID Circulating Pump Hose for Mercruiser Stern Drives

1 3/4" ID Circulating Pump Hose for Mercruiser Stern Drives

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Fulfilled by Vendor, typically 2-3 weeks.

Vendor Shipping Details

This item will be fulfilled from the vendor. Delivery time varies – typically 2–3 weeks.

Restrictions: This item does not ship to a PO Box, APO, FPO, DPO or international address. Expedited shipping is not available.

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Model # 6936728 Mfg # 18-71337
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Pre-molded hose takes the struggle out of installation

Cooling hose routing can be challenging. Space restrictions and tight bends make using conventional hose impossible without constricting water flow and skinning knuckles. Molded hoses designed for specific applications are the solution. Sierra offers a selection of hoses engineered to match manufacturer specifications and make installation easy.

This molded hose is designed for use on circulating pumps on 4.3L, 5.0L and 5.7L engines. Pre-molded bends allow for maximum water flow and end alignment takes the struggle out of connecting to pump and engine ports. To take the frustration out of hose installation, use a Sierra molded hose.

Key Features

  • Pre-molded to simplify installation
  • Allows for maximum water flow while making tight bends
  • Compatible with 4.3L, 5.0L and 5.7L engines as well as some outboards; see the list below or our Engine Parts Selector to confirm this part is right for your engine.
  • Backed by SeaStar Solutions Limited Two-Year Warranty

The Sierra Engine Parts Selector

In addition to circulating hoses, we offer a wide variety of other engine parts manufactured by Sierra. To see if we have the part you need, see ourĀ Engine Parts Selector, where you can search by engine make, serial number and model or year of manufacture.

Application OEM Part Number
Johnson/Evinrude Outboard 312781
Mallory 9-44052
MerCruiser Sterndrive 32-33189, 32-33189A1
OMC Inboard 312781
OMC Sterndrive 312781
Compatibility Mercruiser Stern Drive , OMC Inboard , OMC Stern Drive, Mercury Marine 32-33189,32-87108
Type Hoses