SKU: 20816968533

034Motorsport Auxiliary Side Mount Radiator Upgrade Kit - Audi B9/B9.5 S4/S5 3.0T - 034-102-1007

Sale price$715.50 Regular price$795.00
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Description

034Motorsport Auxiliary Side Mount Radiator Upgrade Kit - Audi B9/B9.5 S4/S5 3.0T - 034-102-1007034 Motorsport Auxiliary Side Mount Radiator Upgrade Kit Audi B9 B9. 5 S4 S5 3. 0T 034 102 1007. If you drive your B9 B9. 5 S4 S5 on track or hard on backroads, or simply want to ensure your EA839 3. 0T stays cool no matter the temperature outside, the 034Motorsport Auxiliary Side Mount Radiator Upgrade Kit is the perfect upgrade to help regulate your engine's coolant temperature. The 034Motorsport Auxiliary Side Mount Radiator Upgrade Kit includes

034 Motorsport - Auxiliary Side Mount Radiator Upgrade Kit - Audi B9/B9.5 S4/S5 3.0T - 034-102-1007.

If you drive your B9/B9.5 S4/S5 on track or hard on backroads, or simply want to ensure your EA839 3.0T stays cool no matter the temperature outside, the 034Motorsport Auxiliary Side Mount Radiator Upgrade Kit is the perfect upgrade to help regulate your engine's coolant temperature.

The 034Motorsport Auxiliary Side Mount Radiator Upgrade Kit includes everything you need to replace your factory side mount radiator with the larger CSF Radiator. The Auxiliary Side Mount Radiator Upgrade Kit is designed specifically as an upgrade for vehicles equipped with the OE drivers-side 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.

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 H x 185mm W x 40mm T
      • OE: 195mm H x 185mm x 26mm T
    • Front Surface Area: 397.75 cm^2
      • OE Front Surface Area: 360.75 cm^2
      • ~10% increase over OE
    • Physical Volume: 1,671 cm^3
      • OE Physical Volume: 938 cm^3
      • 78.1% increase over OE
  • Precision Bent Stainless Steel Mounting Bracket
  • Retains OE Air Duct
  • CNC Machined Billet Aluminium 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 Aluminium 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)

Fitment:

Make Model Years Chassis Engine
Audi S4 2018-Present B9/B9.5 3.0 TFSI
Audi S5 Coupe & Sportback 2018-Present B9/B9.5 3.0 TFSI

 

The installation of your Auxiliary Side Mount Radiator Upgrade Kit, B9/B9.5 Audi S4/S5 3.0T is a straighforward process that will take approximately 1 hour to complete. You can access our detailed installation guide by clicking the link below.

Download the Auxiliary Side Mount Radiator Upgrade Kit, B9/B9.5 Audi S4/S5 3.0T Install Guide

Recommended product: Audi B9 S4 ECU Tuning
Recommended product: Audi B9 S5 ECU Tuning

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: 20816968533

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Yeni
Waukegan, US
★★★★★ 5
DEMEANOR men’s golf polo shirts offer a winning combination of comfort, style, and performance.
Color: Light Blue, Size: X-Large
DEMEANOR men’s golf polo shirts offer a winning combination of comfort, style, and performance. The fabric feels light, breathable, and moisture-wicking — perfect for sunny rounds on the course or casual weekend wear. The fit is tailored without being restrictive, and the variety of colors makes them easy to mix and match with golf pants or shorts. Durable stitching and quality materials mean these polos are built to last. A great addition to any golfer’s wardrobe!
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Reviewed in the United States on December 29, 2025
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Bob Shebaylo
Alexandria, US
★★★★★ 5
Great value for the price.
Color: White, Size: X-Large
Great material and XL Sizing was generous.
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Reviewed in the United States on January 6, 2026
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Just Chris
West Palm Beach, US
★★★★★ 5
Silky smooth fabric
This is a cool and comfortable polo shirt. It's made primarily of polyester with spandex as well to give it added stretch. It fits as expected in my regular size. The color and pattern appear like they did online. It falls somewhere in between casual and dressy and should be suitable for most settings. The fabric is smooth with a bit of sheen and feels cool to the touch. I've machine washed and dried it several times and it still looks great. I love that it doesn't wrinkle and I never need to iron it. Everything seems well put together and I think the quality is great.
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Reviewed in the United States on April 10, 2026
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Sean
Phoenix, US
★★★★★ 5
Nice breathable golf shirt
Color: Light Blue, Size: X-Large
Decent light weight golf shirt, and it does match the photo. The shirt is breathable, stretchy, and it fit as expected for the size.
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Reviewed in the United States on March 1, 2026
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perch98
Grantham, US
★★★★★ 5
This is THE BEST Polo-Style Shirt I Have EVER Seen!!
Color: Light Blue, Size: X-Large, Color: Light Blue, Size: X-Large
OH MAH GAWD this shirt is SO soft that I would call it slippery!! It fits PERFECTLY and true-to-size. The material is a lightweight 'satin' type feel to it that I have NEVER felt before!! Hubby just LOVES this shirt!! The color & print is just GORGEOUS with the subtle sleeve contrast at the 'cuff' (see pics)!! It is great quality with a style that will NEVER look "dated", since it is "Polo Reimagined" with the use of the slick-soft material! Given all of THAT... this is a GREAT value at this price!!
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Reviewed in the United States on January 7, 2026

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