CUSTOM RUBBER & SILICONE MANUFACTURING

Auto rubber grommet cable rubber grommet

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

An auto rubber grommet covers the edge where a cable crosses a compatible vehicle panel. The part should be inspected whenever work near that crossing moves the harness or disturbs the opening. A flange displaced during servicing can leave the jacket against the panel even though most of the rubber still appears in place.

Check the cutout condition before refitting. Paint buildup, a bent edge or debris can change the groove fit. Return the harness to its intended route so the grommet is not used to hold it against an incorrect approach angle.

ETOL can customize the profile and material for the mounting location. The selected compound needs to suit the exposure there; matching the old part's outline alone is not a complete replacement specification.

Once seated, inspect the flange around the full perimeter and check the less visible side with the panel accessible. Make sure any nearby clip supports the harness as intended. During the final movement check, watch for the grommet being drawn sideways as other components are repositioned. Address that strain before closing the area, and replace rubber that has been cut or permanently distorted during removal.

Material options
Custom rubber compound and color, selected for the contact conditions and required geometry.
Hardness range
30–90 Shore A for rubber. Assess the grade against this fit requirement: During the final movement check, watch for the grommet being drawn sideways as other components are repositioned.
Custom profile & fit
Check the cutout condition before refitting.
Assembly considerations
Paint buildup, a bent edge or debris can change the groove fit.
Design check
Once seated, inspect the flange around the full perimeter and check the less visible side with the panel accessible.

Photos illustrate structure or material only. The part should be inspected whenever work near that crossing moves the harness or disturbs the opening. 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

Round Grommet Size Catalog

Choose a profile to compare part numbers and dimensions. Inch and metric sizes are listed in separate tables.

Type D Round Grommets in Inches

274 entries for Type D round through-hole grommets. Original fractions are retained, and exactly equivalent standard inch fractions replace decimal values where possible. Other values remain decimal inches.

DIMENSION GUIDE
Type D Round Grommets in Inches: plan view on the left and section view on the right, with labels matching the dimension key.
Profile reference only. Use the dimensions listed for each part number.
PRODUCT APPEARANCE
Generated product visualization of a black rubber Type D grommet with two round flanges, a panel mounting groove and an open central bore.
Illustrative product rendering. Refer to the table for dimensions.
P/NID (C)GD (A)OD (D)GW (B)T (E)Unit
RG20017/645/321/43/3211/64inch
RG20027/645/321/43/6411/64inch
RG20035/327/329/323/327/32inch
RG20041/83/165/161/163/16inch
RG20059/641/45/165/641/4inch
RG20065/321/45/167/6413/64inch
RG20071/83/1611/321/167/32inch
RG20081/81/411/321/167/32inch
RG20091/81/411/323/321/4inch
RG20109/643/1611/321/163/16inch
RG20113/169/3213/323/325/16inch
RG20123/165/1613/321/167/32inch
RG20133/169/327/163/327/32inch
RG20143/165/167/161/163/16inch
RG20153/165/167/161/43/8inch

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].