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Description
The American Autowire Rubber Pass-Through Grommet (Part # 500183) is a heavy-duty, versatile hardware component designed to protect custom automotive wiring paths from structural damage. Specifically engineered to line raw, sharp sheet metal cutouts in firewalls, radiator core supports, and trunk bulkheads, this grommet provides a secure, weatherproof transition point for running wiring harnesses through your vehicle's metal body panels.
Smart Two-Wire Default Design
Pre-Molded Dual Openings: Out of the box, this grommet features a specialized internal face designed to seal tightly around a standard two-wire run, making it ideal for independent auxiliary circuits, battery charging leads, or isolated sensor pairs.
Drillable / Customizable Center: If you are running a larger, multi-conductor wiring harness or a thick battery cable, the high-density rubber center section can be easily drilled, sliced, or punched out to custom-fit a larger wire bundle diameter without compromising the outer sealing ring.
Vapor & Moisture Shield: The flexible automotive-grade rubber compound expands and conforms tightly around the insulation of your wires, creating a reliable barrier that keeps engine bay heat, toxic fumes, road grime, and moisture from seeping into your interior cabin.
Mechanical Fitment Specs
Standard 1-Inch Mounting: Engineered to snap-fit perfectly into a standard 1.0-inch round hole cutout stamped or drilled into your firewall or paneling.
Deep Retention Groove: Features a heavy-duty outer channel that locks tightly onto the raw sheet metal edge, ensuring the grommet stays firmly anchored in place and won't pop loose when the wiring bundle shakes or shifts during driving.
Technical Specification Matrix
Feature
Specification / Detail
Manufacturer
American Autowire
Part Number
500183
Material Composition
High-Density Automotive Grade Rubber
Panel Hole Cutout Size
1.0" (1 inch)
Default Configuration
Two-Wire Pass-Through Openings
Modification Capability
Center can be drilled or stepped up for larger bundles
Primary Utility
Bulkhead wire protection, abrasion defense, and vapor sealing
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Refund Policy
We offer a 30-day return policy, which means you have 30 days from the date you receive your item to request a return.
Eligibility for Returns
To be eligible for a return, your item must be:
In the same condition as received
Unworn or unused
With original tags attached
In its original packaging
You must also provide a receipt or proof of purchase.
How to Start a Return
To initiate a return, please contact us at jonathon@hotrodhardware.com. Once your return request is approved, you will be provided with the return address and, if applicable, an RMA (Return Merchandise Authorization) number.
Important: Items sent back without prior authorization will not be accepted.
If you have any questions regarding your return, feel free to contact us at the email above.
Damages and Issues
Please inspect your order upon delivery. If your item is defective, damaged, or if you received the wrong item, contact us immediately so we can evaluate the issue and resolve it promptly.
Exceptions / Non-Returnable Items
The following items are not eligible for return:
Custom or personalized products (including special orders)
Hazardous materials, flammable liquids, or gases
Sale items
Gift cards
If you are unsure whether your item qualifies, please contact us before initiating a return.
Exchanges
The fastest way to receive a replacement item is to return your original item (once approved) and place a new order separately.
Free Shipping Orders
Orders that qualified for free shipping are subject to deduction of the original outbound shipping cost if the item is returned.
Refunds
Once your return is received and inspected, we will notify you regarding the approval status of your refund.
If approved:
Refunds will be issued to your original payment method
Any applicable restocking fees will be deducted
Original shipping charges (if applicable) will be deducted
Return shipping costs (if arranged by Hot Rod Hardware) will be deducted
Please note:
Payment processing fees (including PayPal, Amazon Pay, or other merchant fees) are non-refundable
It may take additional time for your bank or credit card provider to process and post the refund
