SKU: 9444535909

034 Motorsport Auxiliary Side Mount Radiator Upgrade Kit - Audi / 3.0T / B9 / B9.5 / S4 / S5

$388.80 $432.00
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Ships within 48 hours · Estimated delivery Aug 19 - Aug 24

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Description

034 Motorsport Auxiliary Side Mount Radiator Upgrade Kit - Audi / 3.0T / B9 / B9.5 / S4 / S5If you drive your B9 B9. 5 S4 S5 on track or hard on backroads, or simply during daily commutes in hot climates, the 034Motorsport Auxiliary Side Mount Radiator Upgrade Kit is the perfect upgrade to help regulate and maintain optimal engine coolant temperature. While high performance driving can push your engine to higher coolant temperatures, doing so with added power can generate excessive heat that the factory side mounted radiator can struggle to

If you drive your B9/B9.5 S4/S5 on track or hard on backroads, or simply during daily commutes in hot climates, the 034Motorsport Auxiliary Side Mount Radiator Upgrade Kit is the perfect upgrade to help regulate and maintain optimal engine coolant temperature. While high-performance driving can push your engine to higher coolant temperatures, doing so with added power can generate excessive heat that the factory side-mounted radiator can struggle to dissipate. This can lead to elevated coolant temperatures, reducing the effectiveness of your vehicle’s cooling system and potentially impacting performance.

The Auxiliary Side Mount Radiator Upgrade Kit is designed to replace your factory side mount radiator with the larger and more efficient CSF Radiator. This upgrade increases cooling capacity and enhances the reliability of your cooling system. Whether you’re looking to tackle backroad and track adventures or live in a higher-temperature climate, this upgraded side mount radiator provides the cooling performance you need to keep your engine running at its best, lap after lap, mile after mile, regardless of the ambient temperature!

The Auxiliary Side Mount Radiator Upgrade Kit is designed specifically as an upgrade for vehicles equipped with the OE auxiliary radiator, ensuring compatibility and seamless integration with your vehicle’s existing cooling system. Before purchasing, please inspect your vehicle to see if it is equipped with the factory driver-side auxiliary radiator. You can do this by opening your hood and visually identifying this factory auxiliary radiator that lives in the front driver-side fender well underneath your headlight. If you do not have the factory driver-side auxiliary radiator, you can easily retrofit the necessary mounting provisions and hoses to install the Auxiliary Side Mount Radiator Upgrade Kit utilizing the OEM components listed below.

034Motorsport Engineers extensively tested the Auxiliary Side Mount Radiator Upgrade Kit on 034Motorsport's Development B9 S4s on backroads and at multiple racetracks and found it to greatly improve the cooling capacity over the factory auxiliary side mount radiator.

Features:

  • Increased Cooling Capacity
  • Utilizes CSF #8132 Radiator
    • Quadruple Pass Design
    • CNC Machined Inlet/Outlet Connections
    • 215mm x 185mm x 42mm
      • OE: 195mm x 185mm x 26mm
    • Front Surface Area: 397.75 cm^2
      • OE Front Surface Area: 360.75 cm^2
      • ~10% Increase Over OE
    • Physical Volume: 1,591 cm^3
      • OE Physical Volume: 937.95 cm^3
      • 69.6% Increase Over OE
  • Precision Bent Stainless Steel Mounting Bracket
  • Retains OE Air Duct
  • CNC Machined Billet Aluminum Adapters to Retain OE Shrouding
  • Crucial Upgrade to Keep Coolant Temperatures in Check on Tracks, Drag Strips, Back Roads, or Higher-Temperature Environments

OE Part Interchange:

  • 8W0 121 251 H

What’s Included:

  • CSF #8132 Radiator
    • Removable Metal Rock Guard
  • x2) Billet Aluminum Adapters
  • x1) Stainless Steel Mounting Bracket

Retrofit Components:

This is a list of components needed to retrofit the 034Motorsport Auxiliary Side Mount Radiator Upgrade Kit. This list is specifically for vehicles that are not equipped with the factory driver’s side auxiliary radiator.

  • 8W0 122 101 AM - Coolant Inlet Hose w/ Divorced Fitting
    • 8W0 122 049 A - Aux Cooler to Inlet Fitting
    • N 906 870 01 - Spring Band Clamp
  • 8W0 122 055 Q - Coolant Outlet Hose w/ Divorced Fitting
    • 8W0 121 471 B - Aux Cooler to Coolant Hardline
    • 8W1 121 070 - Coolant Hardline to Outlet Fitting
    • N 906 870 01 - Spring Band Clamp
    • N 906 869 02 - Spring Band Clamp (x2)
  • 4D0 317 867 A - Rubber Bushing for Rad Bracket (x3)
  • 8W0 121 333 A - Air Guide for Aux Radiator
  • N 911 335 01 - M6x1.25x18mm Flanged Hex Bolt (x1)
    • Or Generic M6x1.25 Bolt
  • N 911 893 02 - M6x1.25 Flanged Nut (x3)
    • Or Generic M6x1.25 Nuts
  • N 902 259 01 - Retaining Washer for Rubber Grommet (x2)
    • Or Generic M5x15 Washer
  • N 107 214 01 - M6x16 Screw to Secure Coolant Hardline (x2)
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: 9444535909

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4.7 ★★★★★
Based on 26 reviews
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S
Verified Purchase
Sandy Oiler
San Leandro, US
★★★★★ 5
You need these if you have dry mouth
Flavor Name: Slightly Sweet, Size: 100 Count (Pack of 1)
I have a real problem with dty mouth due to medications I take. These last at least an hour. They stick well to you gum and they keep your mouth moist, better than any other products for dry mouth. You can even use them when you go to sleep. I use 2 at a time, 1 on each side. Sometimes I just use one. I recommend if you are bothered by dry mouth. They are sugar free.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 29, 2026
A
Verified Purchase
A Davis
Dallas, US
★★★★★ 5
Dry Mouth...BE GONE!!
Flavor Name: Slightly Sweet, Size: 100 Count (Pack of 1)
These are a fabulous product! I have been using them for years. As a CPAP patient, dry mouth during the night is a big issue. Xylimelts solves this completely. Each tablet has a concave side. After you moisten them in your mouth you stick the concave side onto your gums below your teeth, or inside of your cheek. There they stay firmly in place and slowly melt, keeping your mouth perfectly moist all night. My magic bullet is one on each side of my lower jaw and one stuck to the roof of my mouth. They last all night. Xylimelts come in several flavors. Slightly sweet is my favorite, because the mint is a little too strong for me. I cannot live without this product! My daughter does not have a CPAP machine but suffers with sinus congestion. She uses these every night to combat dry mouth associated with mouth breathing during sleep. PRO TIP: once you have them firmly in place, do not try to move them. They are solidly glued down and you can cause irritation by prying them up.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 28, 2025
J
Verified Purchase
Jersey Girl
Pawtucket, US
★★★★★ 5
Xylimelts work! Don't leave home without them!
I love the mint free version of Xylimelts. The mint flavored ones are also good but I'm not a fan of mint. As far as working to alleviate dry mouth, they work. I'm able to use 1 Xylimelt per night and get about 6 hours of comfort. That is sufficient for my needs. The instructions say that you can use 2 Xylimelts at a time, if you need them. Properly moistened before holding in place on your gum, they will adhere tightly. There are certain products that make my life better and Xylimelts are one of them. While not mentioned in the literature, my experience is that using these over the last two years, I've experienced zero cavities. For me, this makes sense as the Xylimelts help prevent bacteria from adhering. Since dry mouth also encourages cavities, using them regularly give you a leg up at preventing cavities while keeping you comfortable all night. I've never used them in the daytime but they are unobtrusive and were certainly help with chronic dry mouth. Definitely works for me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2019
M
Verified Purchase
Mrs. Hill
Cuba, US
★★★★★ 5
Sleep-aid
I've used Oracoat XliMelts for years at night time. I usually only need one for overnight. Keeps my throat dry so I don't keep waking up with a dry mouth.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 8, 2026
L
Verified Purchase
La Milanese
Lowell, US
★★★★★ 5
Finally A Product that Works For Me
I have severe dry mouth. It's due to medication which I need. It was so bad my tongue would stick to the roof of my mouth and I couldn't open it again. I had really bad gun problems and lots of dental work from the infections that developed. Eventually I had to give Up a valuable medication. That was the last century and toothpaste and mouthwash weren't enough. I am.now taking medication that I wouldn't be able to if it weren't for Xylimelts. I found keeping up with the right mouthwash and using this does the trick. I do need some squirts of Biotene spray. That's instant saliva. Keeping this pouches against the gum has been a game changer. It doesn't show. I don't feel it except when it runs out, gets tiny and crumbles into my mouth. That is about two hours. A friend used it and it lasts four hours. I dont remember if I felt it after the first couple of days. It's curved design makes it undetectable. I think the first day of two I kept checking it stayed in place. It does. It doesn't need any particular placement. I put It on the tip of my finger and wherever it goes is fine. This really works. Finally a product that does work for very dry mouth. At night I put two in and they're still there in the morning. I m a mouth breather so the dry mouth was really hard on me comfort-wise. People try to be kind and suggest you have a drink of water. They don't know it's not thirst. I will say taking sips of whatever you like helps. But in the last century I had to give up a valuable medication because my tongue stuck to the roof of my mouth so badly I couldn't open it again. Really embarrassing. It wasn't healthy for my gums either. This does it for me. I hope this helps other people who suffer from bad dry mouth or need it less often
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 17, 2019

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