Product Overview
Reliable custom rubber parts for industrial applications
Quick Answer
This engine coolant water pump outlet hose connector is a molded EPDM sleeve with a wide mounting flange, a smooth inner bore and 3–4 circumferential sealing ribs. It is designed for press-fit sealing at water-pump outlets, cylinder-block ports, radiator hose connections and heater-circuit branches. Custom dimensions and rib profiles are available.
Product Overview
The engine coolant water pump outlet hose connector is a molded EPDM sleeve designed to seal the interface between a metal coolant outlet port and the connected hose. Its wide top flange seats against the housing face and provides axial retention. The outer wall includes 3–4 raised circumferential ribs that compress against the metal bore during press-fit installation. Each rib creates an independent sealing line, helping maintain contact around the full circumference of the port. The smooth inner bore supports coolant flow through the connection. The connector dimensions, rib geometry and flange profile should be matched to the housing bore, hose interface and cooling-system requirements.
Key Features
- Precision-molded EPDM rubber connector for engine coolant outlet ports.
- Wide flat mounting flange provides axial retention at the housing face.
- Outer body includes 3–4 circumferential raised ribs for pressure-fit sealing.
- Multi-rib structure creates multiple sealing lines around the metal bore.
- Smooth inner bore helps reduce unnecessary flow restriction at the connection interface.
- Designed for press-fit installation without a separate O-ring groove.
- Specified operating temperature range: -40°C to +130°C.
- Custom ID, OD, height, rib count and flange dimensions are available according to the application drawing.
Product Specifications
| Specification | Details |
|---|---|
| Product Name | Engine Coolant Water Pump Outlet Hose Connector |
| Material | EPDM (Ethylene Propylene Diene Monomer) |
| Hardness | 60–70 Shore A |
| Color | Black |
| Manufacturing Process | Rubber molding |
| Top Feature | Wide flat mounting flange |
| Sealing Feature | 3–4 circumferential raised sealing ribs |
| Inner Bore | Smooth internal flow path |
| Installation | Press-fit installation; separate O-ring groove is not required for the specified multi-rib design |
| Operating Temperature | -40°C to +130°C |
| Pressure Rating | Up to 2.0 bar for the specified design |
| Coolant Compatibility | Ethylene glycol, OAT, HOAT and propylene glycol antifreeze formulations |
| Application | Water-pump outlets, cylinder-block coolant ports, radiator hose connections and heater-circuit branches |
| Customization | Inner diameter, outer diameter, overall height, flange diameter, flange thickness, rib count, rib geometry, Shore A hardness, dimensional tolerance, packaging and inspection requirements can be reviewed according to the drawing and application conditions. |
| MOQ | Contact us for details |
| Tooling | Tooling cost depends on the drawing and product structure |
| Sample Availability | Available upon request |
| Lead Time | Available upon request |
| Compliance Options | Available upon request |
Applications
The engine coolant water pump outlet hose connector can be used in pressurized cooling-system assemblies where a rubber sleeve must seal between a metal outlet port and a connected hose. Typical installation points include water-pump outlets, cylinder-block or cylinder-head coolant ports, radiator hose connections and heater-core circuit branches. The wide flange supports axial retention at the housing face, while the raised outer ribs create radial contact with the mating bore. The final connector specification should be confirmed according to the port diameter, hose dimensions, system pressure, coolant formulation, temperature range and installation method.
Customization Options
Custom EPDM coolant outlet hose connectors can be developed according to a 2D drawing, 3D model or physical sample. Buyers can specify the inner diameter, outer diameter, body height, flange diameter, flange thickness, rib count, rib profile, rib spacing, housing-bore interference, Shore A hardness and dimensional tolerance. Please provide the engine application, installation position, mating-port dimensions, hose dimensions, coolant formulation, operating temperature, pressure requirement, required quantity and estimated annual volume. Tooling cost depends on the drawing and product structure.
What Information Should Buyers Provide for a Quote?
- Product drawing or physical sample
- Engine make, model and year
- Installation position
- Housing bore diameter
- Hose inner diameter
- Connector inner diameter and outer diameter
- Overall height and flange dimensions
- Sealing rib quantity and profile
- Dimensions and tolerances
- Rubber material
- Shore A hardness
- Operating temperature
- Coolant formulation
- System pressure
- Required quantity
- Estimated annual volume
- Compliance requirements
- Packaging requirements
FAQ
What is an engine coolant water pump outlet hose connector used for?
This connector seals the interface between a coolant-system outlet port and a connected hose. It can be used at water-pump outlets, cylinder-block ports, radiator hose connections and heater-circuit branches where a molded EPDM sleeve is required.
How does the multi-rib pressure-fit seal work?
The outer wall includes 3–4 raised circumferential ribs. During installation, the ribs compress against the metal bore and create multiple sealing lines around the port. The flange seats against the housing face and helps retain the connector axially.
Is a separate O-ring required?
A separate O-ring groove is not required for the specified multi-rib connector design. The raised EPDM ribs form the radial sealing interface. The housing bore, rib dimensions and installation interference should still be confirmed according to the technical drawing.
Is EPDM suitable for engine coolant applications?
EPDM is specified for this connector because the application involves engine coolant exposure. The stated coolant compatibility includes ethylene glycol, OAT, HOAT and propylene glycol antifreeze formulations. The complete coolant specification and operating temperature should be provided for review.
Can the connector dimensions and rib geometry be customized?
Yes. Inner diameter, outer diameter, height, flange dimensions, rib count, rib diameter and rib spacing can be reviewed according to the mating housing and hose design. Please provide a drawing or physical sample for technical evaluation.
How should the connector be installed?
The mating bore should be cleaned before installation. The connector should be aligned with the bore and pressed in evenly at the flange face until the flange seats against the housing. The connected hose should then be installed and secured according to the assembly requirements.
Request a Custom Quote
Send your 2D drawing, 3D model or physical sample for a technical review of your engine coolant water pump outlet hose connector. Please include the housing-bore diameter, hose dimensions, flange profile, rib geometry, coolant formulation, pressure requirement, order quantity and estimated annual demand.
