SKU: 35296986821

034Motorsport Radiator Upgrade - Audi / B9 / B9.5 / S4 / S5 / RS5 / C8 / S6 / S7

Sale price$372.60 Regular price$414.00
Save 10%

Pay in installments of $103.50 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 24 - Jul 29

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

034Motorsport Radiator Upgrade - Audi / B9 / B9.5 / S4 / S5 / RS5 / C8 / S6 / S7If you drive your B9 B9. 5 Audi S4 S5, RS4 RS5 & C8 S6 S7 on track, push it hard on backroads, or even during daily commutes in hot climates, the 034Motorsport Radiator Upgrade is the perfect solution to help regulate and maintain optimal engine coolant temperature. High performance driving, especially with added power, can push your engine to generate excessive heat that the factory main radiator may struggle to dissipate. This can lead to elevated

 

If you drive your B9/B9.5 Audi S4/S5, RS4/RS5 & C8 S6/S7 on track, push it hard on backroads, or even during daily commutes in hot climates, the 034Motorsport Radiator Upgrade is the perfect solution to help regulate and maintain optimal engine coolant temperature. High-performance driving, especially with added power, can push your engine to generate excessive heat that the factory main radiator may struggle to dissipate. This can lead to elevated coolant temperatures, reducing the effectiveness of your vehicle’s cooling system and potentially impacting performance. The 034Motorsport Radiator Upgrade is designed to address these challenges, ensuring your EA839 2.9TT or 3.0T stays cool no matter the conditions.

The 034Motorsport Radiator Upgrade is designed to replace your factory radiator with the larger and more efficient 034Motorsport Radiator, engineered in collaboration with the cooling experts at CSF Radiators. The 034Motorsport Radiator Upgrade utilizes an all-aluminum construction, engineered to be a drop-in replacement for the factory radiator. Featuring a thicker performance radiator core and re-engineered billet aluminum end tanks to improve the efficiency of coolant flow, the 034Motorsport Radiator Upgrade increases the coolant capacity by 40% and improves heat transfer from the coolant to the air. This improvement in capacity results in a 16% improvement in cooling capacity by allowing your vehicle to retain the optimal temperature during high-performance driving and mitigating temperatures from rising!

Not only is it larger, but the 034Motorsport Radiator Upgrade utilizes 65 individual 2-row B-tube technology cooling tubes that carry coolant across the radiator core to help disperse heat, significantly reducing recovery time between pulls! CSF’s “B-tubes” are carefully formed and seam-brazed for a stronger, more efficient design than traditional welded “O” tubes. This allows for thinner, lighter aluminum with improved cooling. The seam-brazed inlet increases heat transfer surface area by ~15%, delivering the efficiency of two smaller tubes within the same space. This improved tube design over the factory is integral to enhancing the cooling process of the 034Motorsport Radiator Upgrade.

034Motorsport Engineers extensively tested the 034Motorsport Radiator Upgrade on 034Motorsport's Development B9 S4 & RS5 on backroads and at multiple racetracks. Whether you’re looking to tackle backroad and track adventures or live in a higher-temperature climate, the Radiator Upgrade 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!

Additional Cooling Upgrades for B9/B9.5 Audi S4/S5:

When looking to further improve the cooling performance of your Audi B9 S4/S5, consider pairing the 034Motorsport Radiator Upgrade with the Auxiliary Radiator Upgrade Kit, which replaces the factory side-mounted radiator with an upgraded unit from CSF Radiators!

Features:

  • All Aluminum Construction
  • Billet Aluminum End Tanks With Machined Inlet & Outlet, and Mounting Provisions
  • 100% Tig Welded
  • Direct, Drop-In Installation, Compatible with OEM Accessories
  • 40% Increase in Radiator Coolant Capacity Over Factory Radiator
    • OEM: 2.5L Coolant Capacity
    • 034: 3.5L Coolant Capacity
  • Increased Core Thickness Over Factory Radiator
    • OEM: 35mm
    • 034: 42mm
  • 65 2-Row B-Tubes with 5mm Fin Height
  • 16% Increase in Cooling Capacity
  • Manufactured by CSF Specifically for 034Motorsport

OE Part Interchange:

  • 8W0 121 251 H
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: 35296986821

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.9 ★★★★★
Based on 23 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
M
Verified Purchase
MICHAEL R TUBBS
Lake Worth, US
★★★★★ 5
Comfortable feel
Easy connect. Works smoothly. Feels comfortable in the hand. Price is great. Good choice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026
J
Verified Purchase
Joe Watanabe
Los Angeles, US
★★★★★ 5
It works and is well priced.
This mouse works as well as much higher-priced brand-name items. It fits well in the hand. The durability is very good. Considering the price compared to other brand names, this is a very good value.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
M
Verified Purchase
Mark H. in the Garage
Louisville, US
★★★★★ 4
Solid Everyday Mouse with a Few Comfort Trade-Offs
I’ve been using this Amazon Basics 2.4 GHz wireless optical mouse as a simple, no-frills option, and overall it does exactly what it’s supposed to do. Setup was instant with the USB nano receiver, tracking is accurate, and the wireless connection has been reliable with no dropouts or lag during daily use. It’s lightweight and works well for general browsing and office tasks. Where it falls a bit short for me is ergonomics. Compared to my Logitech mouse, this one doesn’t feel quite as natural or contoured in the hand during longer sessions. It’s by no means uncomfortable, just not as refined in terms of hand fit. That said, for the price and simplicity, it’s a dependable mouse that gets the job done. A solid choice if you want something basic and reliable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 10, 2026
Y
Verified Purchase
Yaya
Belleville, US
★★★★★ 5
Works Perfect, No Installation Needed, Perfect Size, and Wonderful Price!
Several months ago when the keys on my laptop mouse pad started to go out, I was really irritated because I have gotten so used to using the mouse pad that I was worried that I wouldn't be able to work as efficiently using a wireless mouse. I knew that it would only be a few days before the keys got to the point that I wouldn't be able to use them and started looking on Amazon for a wireless mouse that I might possibly be able to stand using on a daily basis. I spotted the AmazonBasics Wireless Mouse and thought that it wouldn't be that great because it was way cheaper than most of the other wireless ones that I could find. I went ahead and placed my order because I needed something and thought that if it didn't work that well, I wouldn't be out of that much money. When it arrived, I was happy to see that it was a tad bit smaller than other ones that I have used with desktops in the past since I have small hands. I opened the package, popped in some batteries, plugged the nano receiver into my USB slot, and it was working instantly. I thought that it would take some time to install ( I did not read much on it when I purchased it honestly, I just needed one quick!), but was SO happy to see that it needed nothing to be installed. I have been using this wireless mouse for about a year and half now and I have recommended it to SO many people who were looking for one. I work at home on my laptop 7 days a week and anywhere between 12 - 18 hours a day. I only have to change the batteries about once every two months (sometimes it will go a little longer and sometimes a little bit less - not sure on why though). This mouse has worked flawlessly since the day of purchase and I was SO wrong to think that because it was cheaper than the others that it wouldn't work as well. There has never been a time where it disconnected from the computer or that there was any issue using it. A few times when it has needed the batteries changed and I wait a few days, there is a tiny lag - but that is all my fault. The AmazonBasics Wireless Mouse has a little red indicator light that lets you know when the batteries are getting low and need to be changed. I like that feature so that I'm always aware of when they need to be changed. Since I travel a lot, this mouse is great because it doesn't take up a lot of space in the laptop bag. I also never have to worry about losing the nano receiver because once you remove the little door to the battery area, there is actually a space that the nano receiver clicks into making it perfect for travel. If you are in the market for a great wireless mouse, I would recommend the AmazonBasics Wireless Mouse because it has been through over a year of my all day, everyday use and still works just like the day that I purchased it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 3, 2015
E
Verified Purchase
Esther Kushner
Fort Morgan, US
★★★★★ 5
Click
Great, cheap, practical, simple to use, what more can you ask for.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026

recommand products