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K-Tuned - Firewall Grommet (0.65")

K-Tuned - Firewall Grommet (0.65")


Category: Engine
Regular price $54.99
Regular price Sale price $54.99
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Applications: K-Tuned KTH-ENG-306 K-Tuned KTH-ENG-204 Note: * This will cover holes between 1.05" to 1.25"   Our Firewall Grommet is designed specifically for our engine harness (KTH-ENG-306) as a clean and simple way of putting the harness through your firewall. It has an inside hole size of 0.65" that can be used to pass anything that size or smaller through the firewall or other location.

If you are using KTH-ENG-204 (Engine Harness w/Integrated Power Wire) you will have to open the hole up slightly to clear the larger harness.   Instructions: Start by putting put painters tape on the area that you are working on. The tape will allow you to mark the area as needed and will also help keep your paint from being scratched. Also be sure you have selected an area with room for a drill to be used.

Determine the minimum size hole needed to pass your item through the firewall, (What is the largest piece that must go through) make sure it is smaller than the outside dimensions of the grommet (1.25" is maximum hole size recommended). When drilling is complete, you can remove the remaining tape. If you are using the grommet for a harness, we suggest that you put the largest connectors through the hole first and work down to the smallest.

Note that the black junction cover must be removed to fit it through the hole. Once the harness is through the firewall, you can install the first piece on the front and jam nut on the back. Now center the grommet and ensure it is covering the hole cleanly. Finish by installing the second piece of the front plate using the two small allen head bolts.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations. For international orders, please Contact Us. If you select US shipping rates and are shipping internationally, please be advised you will be contacted to compensate the difference in shipping fees.

Due to the high volume of orders for Black Friday, processing takes about 3 to 5 business days before your order ships. There may be shipping delays. We do not process or ship orders on weekends. If you order an item that's on backorder, we will reach out with an estimated arrival time. If you have any questions about shipping make sure to email us at or call our reps today at 732-638-5268.

If by any chance, your package that has been delivered by the carrier is lost/stolen, YOU (THE BUYER) are responsible for working with the carrier and us, Tri-State Motorsports to recover your package. You must contact us and the shipping company within 48 hours of delivery for lost/damage claims. You are covered by the basic insurance amount APPROVED by the shipping center. We DO NOT refund or reship product for claims that are denied by the shipping company.


When will my product ship out?

Processing on in-stock items takes about 2 to 4 days before your order ships. Some orders may take longer than usual to process and ship. If you order an item that's on backorder, we will reach out with an estimated arrival time. Refunds are subject to a 20% restocking fee. Cancellations are subject to 10% cancellation/processing fee under no exceptions.

What's the Warranty on our products?

Unless the product is manufactured by Tri-State Motorsports or TSM Race, ALL Warranties go through the Manufacturer directly. Please visit their official website and get in contact with them in regards to your warranty. We will supply you with any invoice or tracking information the manufacturer asks you for.

Do you offer any promotions?

One of our major promotions is the TSM Bucks Loyalty Program. You will earn 1 TSM point for every dollar you spend with us. These points can be redeemed for rewards when you reach certain thresholds. 

TSM Bucks Info

If you subscribe to marketing emails, you will be given a discount code for 5% off your order that you can use at any time. Our Instagram page also has a variety of weekly promotions in our stories and posts. Some restrictions may apply depending on MAP policies.

What payment methods are accepted?

Tri-State Motorsports accepts American Express, Discover, Mastercard, and Visa. You can also pay over time with Affirm and Klarna. Express checkout methods include:

  • Apple Pay
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  • Meta Pay
  • PayPal
  • Shop Pay
  • Venmo

How can I finance my purchase with Affirm?

Learn More On Affirm

How can I finance my purchase with Klarna?

Learn More On Klarna

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