CUSTOM RUBBER & SILICONE MANUFACTURING

Molded wire harness grommet/oval EPDM rubber grommets

A custom component for your assembly.

Define the mating surfaces, dimensions and working conditions. ETOL manufactures the part to the agreed design and material.

  • Factory direct
  • Made to order
  • Drawing & sample support

Share the part, its application and your estimated quantity.

Customize the fit, material and finish

Vulcanization workshop illustration with green molding presses and blue collection bins

Material & hardness

Selected for the contact, temperature and movement

Color & finish

Define the visible surfaces and intended color

Shape & dimensions

Develop holes, lips and walls around the mating parts

Mounting & fit

Match the attachment and installation method

Product Overview

Custom oval EPDM rubber grommets fit a wiring harness interface with an elongated outer profile. The shape should correspond to the panel cutout and the intended harness orientation. Its long axis can be positioned around the routing space available, while the passage and retaining section are dimensioned for the actual assembly.

Establish the harness route before neighboring panels or trim make the opening difficult to reach. The bundle should approach without forcing one curved end of the grommet away from its seat. Check the outer groove around the whole perimeter and confirm that the final harness supports do not rotate the rubber from its intended orientation.

Choose the EPDM formulation for the local exposure and maintenance conditions. The receiving edge should be finished before fitting, and the bore should remain free from debris as the harness is threaded. Following repair, inspect the hidden lip as well as the visible flange. A replacement should match the oval profile and groove width, since similar overall dimensions can still leave a different relationship with the panel thickness.

Material options
Custom EPDM formulation; tailor the geometry and color to the required interface and exposure.
Hardness range
30–90 Shore A for rubber. Assess the grade against this fit requirement: Check the outer groove around the whole perimeter and confirm that the final harness supports do not rotate the rubber from its intended orientation.
Custom profile & fit
The shape should correspond to the panel cutout and the intended harness orientation.
Assembly considerations
The bundle should approach without forcing one curved end of the grommet away from its seat.
Design check
Following repair, inspect the hidden lip as well as the visible flange.

Photos illustrate structure or material only. The long axis can be positioned around the routing space available, while the passage and retaining section are dimensioned for the actual assembly. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.

Choosing a material or hardness? Explore the selection guide →

FIND THE RIGHT FIT

Oval Grommet Size Catalog

Choose a through-hole or blind-hole profile, then compare the dimensions for your panel and cable arrangement.

Through-Hole Oval Grommets

133 sizes with an open passage for cables. Match the outside dimensions, opening, panel hole, panel thickness and overall thickness. Dimensions are in millimeters (mm).

DIMENSION GUIDE
Dimension diagram for Through-Hole Oval Grommets dimensions table 1; labels correspond to the corresponding table.
PRODUCT FORM
Representative oval profile for Through-Hole Oval Grommets dimensions table 1
Representative profile. Refer to the table for available dimensions.
P/NODIDGDGWT
OG900129×4920×4023×4348
OG900271.5×37.253.5×19.259.5×25.23.57.2
OG9003112×43.598.5×30101.5×333.57.2
OG900483×4071×2875×3226
OG900539×1932×1235×1525
OG900619.5×1013.5×415.5×625
OG900714×248×1810×2014
OG900814×248×1810×201.54.5
OG900914×248×1810×2025
OG901014×248×1810×202.55.5
OG901114×248×1810×2036
OG901214×248×1810×2047
OG901314×298×2310×2514
OG901414×298×2310×251.54.5
OG901514×298×2310×2525

Can't find the right size? Contact us for custom dimensions tailored to your requirements.

From part requirements to production

01

Define the part

Identify key dimensions, mating surfaces and quantity

02

Review material & tooling

Agree the compound and manufacturing approach

03

Evaluate the sample

Review the fit and agreed requirements in the assembly

04

Produce & inspect

Manufacture and check against the approved requirements

Review the intended assembly

Working conditions

Identify temperature, contact fluids and repeated movement.

Material and structure

Consider hardness together with wall thickness and support.

Installation

Check access, mating dimensions and the fitting sequence.

Ordering this custom component

Can the shape be adjusted to my mating parts?

Yes. Show the receiving opening, contact surfaces and clearance limits. We can review the dimensions and retaining features around the intended fit.

Which details should be agreed before tooling?

Agree the critical dimensions, material, hardness, visible surfaces and sample requirements. Explain how the part is installed and which interfaces control its function.

Can a sample help define the replacement?

A sample can help explain the structure. Compare it with the assembly because wear, swelling or compression may have changed its original dimensions.

How is the quotation for this part determined?

The material, part geometry, tooling, quantity and finishing affect the quotation. Include the intended batch size and delivery destination when describing your requirements.

DISCUSS THIS COMPONENT

Describe the part you need.

Share the fit, operating conditions and quantity with our manufacturing team.

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Send your requirements
and selected drawings

All files and photos you share with us are handled under strict confidentiality procedures and will not be disclosed to any third party.

DISCUSS THIS COMPONENT

Request a Custom Quote

You can also email us directly at [email protected].