Sierra 18-3601 Gimbal Housing Water Feed Hose, Replaces Mercruiser 32-32461, 32-32461A1 - 5/8 in. X 13-7/8 in.

The Sierra 18-3601 is a Gimbal Housing Water Feed Hose built for Mercruiser I/O cooling systems where the thermostat housing connects to the port exhaust manifold. It is molded from rubber to handle continuous exposure to raw water and engine heat while routing coolant flow through the gimbal housing water feed circuit. The hose measures 5/8 inch in diameter and 13-7/8 inches in length, matching the original equipment dimensions so it installs as a direct fit without modification. Its white rubber construction resists the cracking, hardening, and leaking that commonly develop in aging OEM hoses from prolonged heat cycling and saltwater or freshwater exposure. As a Sierra replacement part, it is manufactured to meet or exceed the performance of the original equipment hose it replaces. This hose is a straightforward wear-item swap for boat owners and marine technicians performing cooling system maintenance, and it directly replaces Mercruiser part numbers 32-32461 and 32-32461A1. Keeping this hose in good condition is important, since a cracked or split water feed hose can allow air into the cooling system or let coolant escape, leading to overheating.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-3601
• Product Name: Gimbal Housing Water Feed Hose
• Diameter: 5/8 inch
• Length: 13-7/8 inches
• Material: Rubber
• Color: White
• Weight: 0.38 pounds
• OEM Cross Reference: 32-32461, 32-32461A1

Replaces (OEM)

• 32-32461
• 32-32461A1

Frequently Asked Questions

What does the Sierra 18-3601 hose connect? The Sierra 18-3601 is a gimbal housing water feed hose that routes from the thermostat housing to the port exhaust manifold on applicable Mercruiser I/O engines.

What size is the 18-3601 hose? It measures 5/8 inch in diameter and 13-7/8 inches in length.

Which OEM part numbers does the 18-3601 replace? It replaces Mercruiser part numbers 32-32461 and 32-32461A1.

Is the Sierra 18-3601 a direct OEM replacement? Yes, the 18-3601 is manufactured to meet or exceed the specifications of the original Mercruiser 32-32461 and 32-32461A1 hoses it replaces, so it installs in place of the OEM part without modification.

What material is the 18-3601 hose made from? The 18-3601 gimbal housing water feed hose is made from white rubber designed to withstand engine heat and continuous water exposure.

How much does the 18-3601 hose weigh? The Sierra 18-3601 weighs 0.38 pounds.

How do I know if my water feed hose needs replacing? Signs that the 18-3601 or a similar gimbal housing water feed hose needs replacement include visible cracking, hardening, soft spots, or coolant leaks around the thermostat housing to exhaust manifold connection.

Does the 18-3601 come with hose clamps? The 18-3601 listing covers the hose itself; clamps are not specified as included components.

Is this a genuine Sierra part or aftermarket? The 18-3601 is a genuine Sierra marine part manufactured to OEM-equivalent standards as a replacement for Mercruiser 32-32461 and 32-32461A1.

Where on the engine does the 18-3601 hose install? It runs from the thermostat housing to the port side exhaust manifold on applicable Mercruiser I/O cooling systems.