K-Tuned Billet Firewall Grommet
SKU: 52644037020

K-Tuned Billet Firewall Grommet

Sale price$56.92 Regular price$63.24
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Ships within 48 hours · Estimated delivery Jul 5 - Jul 10

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Description

K-Tuned Billet Firewall GrommetThe K Tuned Firewall Grommet is designed specifically for the K Tuned 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. If you are using a K Tuned engine harness w integrated power wire you will have to open the hole up slightly to clear the larger harness. This will cover holes between 1. 05" to 1.

The K-Tuned Firewall Grommet is designed specifically for the K-Tuned 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. If you are using a K-Tuned engine harness w/integrated power wire you will have to open the hole up slightly to clear the larger harness.

This will cover holes between 1.05" to 1.25".

General 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.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 52644037020

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Dmytro Sushynskyi
Bozeman, US
★★★★★ 5
Great filter!
Excellent filter! Fits my 2017 BMW X5 f15. Eliminates all external odors from the street.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 23, 2025
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Verified Purchase
Shahida M Parveen
Port Orchard, US
★★★★★ 4
Fits bmw x5 35i 2015
Installation was pretty easy. Works as designed. Will update.
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Reviewed in the United States on July 16, 2023
M
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MLG
Alexandria, US
★★★★★ 5
Great price
I love Mann filters. Great for the price and great quality. I was surprised how cheap they were ( my car takes 2 filters and two come in the box). They fit like a glove and now I am enjoying fresh air
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Reviewed in the United States on March 30, 2026
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Erik Pontes
Draper, US
★★★★★ 5
Can’t beat MANN quality
Bought to replace the filters on my 2015 bmw x5 as there was a musty smell from ac. Old filters were another junk company that fit very loosely. I was impressed by the quality and how secure the MANN filters locked into the housing; musty smell all gone now! Easy 10min replacement job, comes with VERY detailed instructions for the less mechanically inclined
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Reviewed in the United States on April 12, 2024
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Kody A.
Belleville, US
★★★★★ 5
Great product
Fits our 2012 X5d perfectly. Do yourself a favor and youtube the process for replacing these. You'll see it's well worth doing yourself rather than paying a shop that charges a BMW premium on everything. Also something I learned recently... this is a low cost high charge item at the mechanic. A lot of times when they suggest replacing these it's because they just tick the box and don't actually look at them. We had our mechanic admit this on a recent service where it was suggested to replace, when we had just done it ourselves in April.
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Reviewed in the United States on July 23, 2023

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