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BMW Billet AC Service Port Caps

…
$24.99
  • Fitment verified for YOUR exact year/model/trim
  • Not sure? Email support@k2-industries.com for a real specialist to help you order
  • Got install questions? Text a tech who's actually installed this part before, even after it arrives
Only 4 left in stock - Usually ships in 3-5 days
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Race German  |  SKU: RG-AC-SERVICE-CAP

Wrong fit or arrives damaged? Free replacement available

30,000+ Happy Customers30,000+ Happy Customers
30-Day Returns30-Day Returns
One Year WarrantyOne Year Warranty
LIVE NOW: Automatic entries into the E90 Giveaway!
Every $1 Spent = Entries into our E90 Giveaway

Details

Looking to dress up your engine bay?  Look no further.  Our billet aluminum air conditioning service port cabs are CAD designed and machined out of one block of aluminum.  We then anodize them blue, to not only dress up the engine bay, but to easily find your ac service ports.  These caps are completely plug and play and slide over the original plastic caps.  They are held in place by a small set screw. A simple but elegant solution. 

Replaces BMW PN 64538387438 & 64538387437

Fitment:

E36, E46, E60, E9x, Z4, E8x, E53

1' E81 (02/2006 - 12/2011)
1' E87 (02/2003 - 02/2007)
1' E87 LCI (01/2006 - 06/2011)
1' E88 (11/2006 - 10/2013)
1' E82 (11/2006 - 10/2013)
1' F20 (07/2010 - 02/2015)
1' F20 LCI (05/2014 - 02/2018)
1' F21 (07/2010 - 02/2015)
1' F21 LCI (05/2014 - 02/2018)
2' F22 (10/2012 - 06/2017)
2' F22 LCI (09/2016 - 02/2018)
2' F87 M2 (11/2014 - 06/2017)
2' F87 M2 LCI (09/2016 - 02/2018)
2' F23 (03/2014 - 06/2017)
2' F23 LCI (09/2016 - 02/2018)
2' F45 Active Tourer (11/2013 - 02/2018)
2' F45 Active Tourer LCI (04/2017 - 12/2017)
2' F46 Gran Tourer (07/2014 - 02/2018)
2' F46 Gran Tourer LCI (05/2017 - 01/2018)
3' E36 (11/1989 - 08/2000)
3' E46 (03/2000 - 08/2006)
3' E90 (02/2004 - 09/2008)
3' E90 LCI (07/2007 - 12/2011)
3' E91 (02/2004 - 08/2008)
3' E91 LCI (07/2007 - 05/2012)
3' E92 (05/2005 - 02/2010)
3' E92 LCI (11/2008 - 06/2013)
3' E93 (09/2005 - 02/2010)
3' E93 LCI (11/2008 - 10/2013)
3' F30 (02/2011 - 07/2015)
3' F30 LCI (09/2014 - 02/2018)
3' F80 M3 (04/2012 - 06/2015)
3' F80 M3 LCI (01/2015 - 02/2018)
3' F31 (07/2011 - 07/2015)
3' F31 LCI (09/2014 - 02/2018)
3' F34 GT (07/2012 - 06/2016)
3' F34 GT LCI (09/2015 - 02/2018)
4' F32 (11/2012 - 02/2017)
4' F32 LCI (05/2016 - 02/2018)
4' F82 M4 (02/2013 - 02/2017)
4' F82 M4 LCI (05/2016 - 02/2018)
4' F33 (03/2013 - 02/2017)
4' F33 LCI (05/2016 - 02/2018)
4' F83 M4 (06/2013 - 02/2017)
4' F83 M4 LCI (05/2016 - 02/2018)
4' F36 Gran Coupé (07/2013 - 03/2017)
4' F36 Gran Coupé LCI (05/2016 - 02/2018)
5' E60 (12/2001 - 12/2009)
5' E60 LCI (10/2005 - 12/2009)
5' E61 (10/2002 - 02/2007)
5' E61 LCI (11/2005 - 05/2010)
5' F07 GT (09/2008 - 06/2013)
5' F07 GT LCI (08/2012 - 02/2017)
5' F10 (01/2009 - 10/2016)
5' F10 LCI (08/2012 - 10/2016)
5' F11 (01/2009 - 06/2013)
5' F11 LCI (08/2012 - 02/2017)
5' G30 (10/2015 - 02/2018)
5' F90 M5 (01/2016 - 02/2018)
5' G31 (03/2016 - 02/2018)
6' E63 (05/2002 - 07/2010)
6' E63 LCI (04/2006 - 07/2010)
6' E64 (09/2002 - 07/2010)
6' E64 LCI (04/2006 - 07/2010)
6' F06 Gran Coupé (05/2011 - 03/2015)
6' F06 Gran Coupé LCI (05/2014 - 02/2018)
6' F12 (10/2009 - 02/2015)
6' F12 LCI (05/2014 - 02/2018)
6' F13 (03/2010 - 02/2015)
6' F13 LCI (05/2014 - 10/2017)
6' G32 GT (09/2016 - 02/2018)
7' E38 (07/1993 - 07/2001)
7' E65 (02/2000 - 07/2008)
7' E66 (06/2000 - 07/2008)
7' E67 (10/2002 - 06/2008)
7' F01 (06/2007 - 06/2012)
7' F01 LCI (05/2011 - 05/2015)
7' F02 (07/2007 - 06/2012)
7' F02 LCI (05/2011 - 05/2015)
7' F03 (04/2008 - 05/2012)
7' F03 LCI (01/2012 - 03/2015)
7' F04 Hybrid (10/2008 - 06/2012)
7' G11 (10/2014 - 02/2018)
7' G12 (10/2014 - 02/2018)
i3 I01 (01/2013 - 10/2017)
8' E31 (07/1989 - 05/1999)
i3 I01 LCI (01/2017 - 02/2018)
i8 I12 (02/2013 - 02/2018)
i8 I12 LCI (11/2016 - 11/2017)
i8 I15 (01/2017 - 01/2018)
X1 E84 (09/2008 - 06/2015)
X1 F48 (11/2014 - 02/2018)
X2 F39 (10/2016 - 02/2018)
X3 E83 (01/2003 - 07/2006)
X3 E83 LCI (02/2006 - 08/2010)
X3 F25 (06/2009 - 08/2017)
X3 G01 (09/2016 - 02/2018)
X4 F26 (05/2013 - 02/2018)
X5 E70 (02/2006 - 06/2013)
X5 E70 LCI (04/2009 - 06/2013)
X5 F15 (08/2012 - 02/2018)
X5 M F85 (04/2013 - 02/2018)
X6 E71 (01/2007 - 06/2014)
X6 F16 (09/2013 - 02/2018)
X6 M F86 (10/2013 - 02/2018)
Z4 E85 (01/2002 - 08/2008)
Z4 E86 (10/2005 - 08/2008)
Z4 E89 (01/2008 - 08/2016)

Our Guarantee

Warranty Assurance:

At K2 Industries, your satisfaction is our priority, and we stand behind the quality of our products. Here's a brief overview of our warranty:

Defect Coverage:
If you find a defect after receiving your order, get in touch with us. We're committed to resolving the issue, whether it involves a replacement, repair, or refund.

Installation Note:
Please inspect your purchase before installation. Unfortunately, damages post-installation are not covered, so ensure everything looks good beforehand.

Claims Made Simple:
Need to make a claim? Reach out to us at support@k2-industries.com. We're here to assist you. Just keep your original packaging and documentation handy.

Your Satisfaction Matters:
Your trust in K2 Industries is appreciated. We're dedicated to ensuring your satisfaction with our quality automotive parts.

Shipping & Returns

Shipping Information:

At K2 Industries, we strive to provide a seamless and efficient shopping experience for automotive enthusiasts like you. Our commitment is to deliver high-quality parts to your doorstep with the utmost care.

Fast and Reliable Shipping:
Many of our products are stocked in our local warehouse, ensuring swift processing and delivery. Orders placed for these items typically ship within 2-5 business days, allowing you to get your parts in no time.

Extended Selection, Global Reach:
To offer you a broader range of automotive parts, some items are sourced from trusted suppliers around the world. While these products might have a slightly longer processing time, we assure you that the wait is worth it for the exceptional quality and value they bring.

Shipping Transparency:
For products shipped internationally, we provide estimated delivery times on the product page. Rest assured, we are continually working to optimize our supply chain and minimize any potential delays.

Combined Shipments:
To streamline your shopping experience, if your order includes items from both our local warehouse and international suppliers, they may be shipped separately. You will receive separate tracking information for each shipment.

Questions or Concerns?
If you have any questions about shipping or would like assistance tracking your order, our dedicated customer support team is here to help. Feel free to reach out to us at support@k2-industries.com.

You can also track your order here

Thank you for choosing K2 Industries for your automotive needs. We appreciate your trust in us.

FAQs

How do I confirm this part fits my vehicle?

Use the vehicle selector at the top of this page to verify fitment. If anything's unclear, send us your year/model/trim (or VIN) via live chat or email support@k2-industries.com — we'll confirm fitment for free, before you commit.

How long until I get my order?

In-stock items typically process in 3-5 business days, then ship — most domestic orders arrive within 3-7 business days after that. Larger freight items take 3-10 days in transit. Some items are made-to-order (carbon fiber, aero kits) and require 10-25 business days of production before shipping — these are marked on the product page.

What if it arrives damaged?

Inspect your shipment when it arrives, take photos of any damage to the box and part, and reach out via live chat or support@k2-industries.com. For freight deliveries, note visible damage on the paperwork before signing. We handle the carrier claim and get you a replacement.

What if I want to return it?

You have 30 days from delivery. As long as the part is uninstalled and in original condition, you can choose between an exchange, store credit (no fees, never expires — our most popular option), or a refund. Drop us a message and we'll walk you through the easiest path.

Can I install this myself, or do I need a shop?

Depends on the part. Some are straightforward DIY, others are body shop or specialist work. Each product page indicates the recommended install path. If you're unsure, message us with your build details and we'll give you a real assessment.

What's the fastest way to reach you?

Live chat and email — typical response time is a few business hours, and you can reach out anytime. Chat with us on the site or email support@k2-industries.com. We resolve issues directly far faster than going through your bank or card processor.

The K2 Difference

  • • Built by enthusiasts who've made every fitment mistake you're afraid of. Now we verify parts for 30,000+ builds a year with zero wrong-part claims.
  • • Real specialists answer your questions in minutes, not chatbots reading scripts. We've built the same cars you're building.
  • • Freight damage, wrong parts, installation question, we handle it so you don't deal with suppliers or shipping companies.
Founder photo

Built By Someone Who's Been There

Max, the Owner, started in his garage making E36 M3 tail lights in his own oven.

  • • Started modifying cars before he could legally drive them
  • • Spent years hunting down parts that actually fit and don't suck
  • • Made the same fitment mistakes you're afraid of

You’re not buying from a warehouse. You’re buying from someone who builds cars just like you do.

Founder photo

What You Get With Every Order

Products Selected to Meet Quality & Fitment Standards we Stand Behind.
Products Selected to Meet Quality & Fitment Standards we Stand Behind.
Get Help From People Who Actually Understand Builds & Fitment.
Get Help From People Who Actually Understand Builds & Fitment.
Designed to Resist UV Exposure, Wear, and Everyday Use.
Designed to Resist UV Exposure, Wear, and Everyday Use.
Join Thousands of Builders Who Trust K2
Join Thousands of Builders Who Trust K2

What Sets K2 Industries Apart?

We don’t just sell parts. We actually care.
Pre-Order Fitment Verification
Damage Replacement
Real Experts Answer the Phone
Post-Purchase Installation Support
Curated Quality
30-Day Returns
K2 Industries
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K2 Industries
Other Brands
Pre-Order Fitment Verification
Damage Replacement
Real Experts Answer the Phone
Post-Purchase Installation Support
Curated Quality
30-Day Returns
Add to Cart
GuaranteePerfect fit guaranteed

Frequently Asked Questions

How do I know this will actually fit my car?

Every part listing shows compatible years, models, and trims. But here's the thing—trim packages and factory options can be confusing. If you're not 100% certain, text us at 772-277-2495 with your VIN or photos of your car. We'll verify fitment before you order so you're not stuck with an $800 part that doesn't fit. We've done this for 30,000+ builds. We've seen every weird trim combo and factory option. Takes us 2 minutes to verify, saves you weeks of headaches.

What if the part arrives damaged or is the wrong item?

We handle it. You don't fight with freight companies or file claims. Text us photos within 48 hours of delivery. If it's damaged or wrong, we ship a replacement immediately. You're not waiting 6 weeks for a freight claim to process. We eat the cost, not you. This is why we package everything like it's going to war. But if something slips through, we fix it ASAP. No forms, no back-and-forth, no "file a claim and wait." Just text us and we handle it.

Can I install this myself or do I need a shop?

Depends on the part. Emblems, front lips, some spoilers, bolt-on, DIY-friendly, you can do it in your driveway with basic tools. Full bumpers, hoods, wide-body kits, possible for experienced DIYers but most people take them to a shop for paint and install. Check the product description for installation difficulty. If you're unsure, text us. We'll be honest about whether you can handle it or if you should take it to a pro. We'd rather you know upfront than get frustrated halfway through.

What's your return policy if it doesn't fit or I don't like it?

30 days, unused parts in original packaging. You pay return shipping unless we sent the wrong part or it arrived defective. Once you install it, modify it, paint it, or mount it, we can't take it back. That's why we push so hard on verifying fitment BEFORE you order. We don't want you stuck with something you can't use. Text us before ordering if you're unsure. We'll confirm fitment so you never have to worry about returns.

Do you offer financing?

Yes. Affirm and Shop Pay available at checkout for orders over $50. Split payments over 3-12 months depending on order size. No hard credit check to see your options. Most people use this for big-ticket items like body kits, suspension setups, or wheel/tire packages. Rates vary based on credit. You see the monthly payment before you commit. Makes it easier to build now instead of waiting months to save up.

What if I have questions after I receive the part?

Text 772-277-2495. We don't disappear after you buy. Fitment questions, installation issues, "does this bolt go here" questions... we'll walk you through it. We've installed these parts ourselves or helped hundreds of people install them. You're not getting transferred to a call center in the Philippines. You're texting someone who's actually installed your part before. If we can't help remotely, we'll recommend a local shop that knows these parts.

Why should I buy from K2 instead of eBay/Amazon/other sites?

eBay and Amazon sellers don't answer fitment questions. They don't verify your VIN before shipping. They don't handle freight damage claims for you. If something goes wrong, you're filing disputes and waiting weeks. We're builders selling to builders. We verify fitment before you order. We handle damage claims same-day. We answer texts in minutes. We're not the cheapest, but you're not gambling $800 on whether a part fits. You're paying for support, verification, and someone who cares if your build goes sideways.

What does your warranty cover?

1 year against manufacturing defects: cracking, warping, paint peeling, hardware failure, fitment issues caused by the part being made wrong. Does NOT cover installation damage (you cracked it bolting it on), road damage (curb rash, rock chips), or normal wear. If it breaks because we made it wrong, we replace it free. If it breaks because you hit a parking block, that's on you. We're fair about it. Send photos and we'll tell you honestly if it's covered.

Shipping

Do you ship overseas?

Yes, we ship all over the world. Shipping costs will apply, and will be added at checkout. We run discounts and promotions all year, so stay tuned for exclusive deals.

How much does shipping cost and when will I see the total?

Depending on where you're located, small parts can ship free. Large parts like bumpers, hoods, and body kits require freight shipping. Uou'll see the exact cost at checkout before you pay. Freight usually runs $150-$300 depending on size and your location. We know it's expensive. We negotiate the best rates we can. If you're ordering multiple large parts, text us. We can sometimes combine shipping and save you money. We're not hiding fees in the final step. What you see at checkout is what you pay.

How long will it take to receive my order?

It depends on where you are. Orders processed here will take 5-7 business days to arrive. Overseas deliveries can take anywhere from 7-16 days. Delivery details will be provided in your confirmation email.

See Why Customers Love K2 Industries

Customer Reviews

Overall rating: 4.6 / 5 from 890 reviews.

Customer video review of Shipping Insurance

Product came quick and fit great. I love it.

Paul G. 5/5 Verified

Shipping Insurance

Customer photo review of Shipping Insurance

Roof rails a proper fit for my Ford Transit Connect - SWB. Some concern about the threaded connectors, wondering if rivnuts might offer stronger attachment.

Walt E. 5/5 Verified

Shipping Insurance

Customer video review of Shipping Insurance

GREAT EXPERIENCE SHIPPING WAS QUICK IM ENJOYING THE PRODUCT

Emperor A. 5/5 Verified

Shipping Insurance

Customer photo review of NTXGlow RGB Tail Lights (2015-2023 Ford Mustang)

Took 2 weeks to deliver with standard shipping. But well worth the wait. Install took 25 minutes with minimal tools and the lights look amazing. Fitment is perfect and the quality is excellent. Its kinda pricey but you get what you pay for with ntxglow products. Highly recommend!

Michael O. 5/5

NTXGlow RGB Tail Lights (2015-2023 Ford Mustang)

Customer photo review of Shipping Insurance

Wing came in perfect condition! No chip paint, no scratches. Amazing service!

Natalie P. 5/5 Verified

Shipping Insurance

Customer photo review of Spec-D Projector Headlights Ford F150 (04-08) Mark LT (06-08) Halo Black / Smoked / Chrome

They look amazing, and after using ChatGPT to help me understand how to install them (because the instructions were not very helpful whatsoever), I’m glad with how they turned out. My problems are that the lights aren’t too bright, the instructions weren’t helpful, and the arrival date was wrong, even if they arrived early.

Caleb B. 4/5 Verified

Spec-D Projector Headlights Ford F150 (04-08) Mark LT (06-08) Halo Black / Smoked / Chrome

Customer photo review of 1993-1997 Honda Del Sol Redclear Tail Light Lenses

This isn’t on K2, but the lenses came In which I was thrilled about. I’d already removed my OEM lenses from their housings. The passenger side lense fit well and mostly flush. The driver side, however, looks like it was slightly warped and caused poor fitment and what looks like a small dip in the red portion of the lense. I had no choice but to use them, as my OEM lenses were no longer usable. It can be very difficult to get replacement lenses in a timely manner for a Del Sol. I drive my car everyday, so I had to just go with it. Again, not a K2 issue but presumably the manufacturer.

Thom T. 2/5 Verified

1993-1997 Honda Del Sol Redclear Tail Light Lenses

Customer video review of 2003-2008 Nissan 350Z N4 Style Rear Bumper Cover - FRP

This rear bumper fits great the only thing is the trunk button on the bottom is cut a little to wide but that’s an easy fix it looks great and definitely makes the rear look more aggressive. I love it!

Donovan T. 5/5 Verified

2003-2008 Nissan 350Z N4 Style Rear Bumper Cover - FRP

Customer photo review of Upgraded VANOS Oil Supply Line – M52 / M54 Engines (E36, E46, E39, E60, X3, X5, Z3, Z4)

The box was a little crushed, but the line was packed well and it wasn't a problem. The instructions are 3 pages of color pictures and lots of explanations. Very nice. The line itself is a very nice bit of kit with a swivel AN line end that allows a No-tension install. No leaks so far and it looks great. It came with new banjo bolts and copper crush washers. The only criticism I have is that I would have liked this hose coated in black so it disappears like the original, but it does look good, so I don't mind.

Andrew H. 5/5 Verified

Upgraded VANOS Oil Supply Line – M52 / M54 Engines (E36, E46, E39, E60, X3, X5, Z3, Z4)

Customer photo review of Extend Protection Plan

These side window windows deflectors are durable and do their job perfectly

Cody P. 5/5 Verified

Extend Protection Plan

Customer photo review of Open Front Vents for GR Supra (A90/91)

Not a fan of how thick the sides are on these vent pieces. I feel as if they would have been fine if they kept the oem size on the sides and just made them.

Chad G. 4/5 Verified

Open Front Vents for GR Supra (A90/91)

Customer photo review of BMW Roundel Emblem Covers - Full Carbon Fiber

Roundels showed up good quality and fit perfect. Also, anyone with a G22 who cant find anything for the rear, after emailing to ask them I was told they could custom do the 100mm rear roundel with camera hole cut out but just didn't have it listed. Charged me same cost, mailed it out same day. Highly satisfied!

Benjamin G. 5/5 Verified

BMW Roundel Emblem Covers - Full Carbon Fiber

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