Turbocharger K03 016 017 for Audi RS4 S4 2.7 L ASJ K04 025 K04 026 Turbo upgrade

  • * OEM-Quality. Direct Replacement
  • * Ductile Iron QT450-10 - High temperature resistance (up to 700℃)
  • * K418 Alloy - Stable & High Oxidation & Temperature Resistance(up to 900℃)
  • * Cast Aluminium Blade - Good Air Tightness & Corrosion Resistance
Stock In Stock

Combination offer

  • A
  • B
  • C
  • D
  • E
  • F
  • G


for AUDI      RS4 BI TURBO N/SIDE    2.7L P    ASJ/AZR    00 -
for AUDI      RS4 BI TURBO O/SIDE    2.7L P    ASJ/AZR    00 -
for AUDI      S4 BI TURBO N/SIDE    2.7L P    AGB/AZB    98 -
for AUDI      S4 BI TURBO O/SIDE    2.7L P    AGB/AZB    98 -
for AUDI      ALLROAD QUATTRO    2.7L P    AJK/ARE/BES/AGB    02 -
for AUDI      A6 2.7T QUATTRO    2.7L P    AJK    99 - 02


Turbo Model: K04 -025 K04-026
Turbo Part Number & OEM Number:
53049880025 & 53049880026; 53049700025 & 53049700026;
53039880016 & 53039880017; 53039700016 & 53039700017;
078145701M & 078145702M; 078145703M & 078145704M;
078145701H & 078145702H; 078145703H & 078145704H;
078145703MX & 078145704MX
078145703MV & 078145704MV
Bearing Type: Journal Bearing
Accessories: You will get exactly as shown in the picture above


- This is a pair of upgraded turbo for K03-016 turbo & K03-017 turbo, This K04-025 026 turbo can replace the k03 016 017 turbocharger, but you may need replace the intake hose of the cold side
- Please confirm your old turbo part number matches up with one of the part numbers above
- Professional installation is highly recommended (No Instruction Included)
- For any needs please contact us

OEM-quality and size with little modification
Turbine housing uses cast iron withstand temperatures up to 700℃
Steel Turbine Wheel made from the special K418 alloy to achieve high oxidation resistance and stability under high temperatures up to 900℃
Cast aluminium blades with good gas tightness and corrosion resistance

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We aim to provide you the good buying experience, 30 days return policy is offered in our store. Please follow our return policy before you return any item(s):
If you are unhappy with your purchase for any reason, you can return it to us in an unused condition in the original packaging within 30 days of purchase and we'll give you a refund or exchange. The refund/Exchange will not include postage costs. Please note you MUST contact us to obtain a Return Authorization and Return Address before returning any part. Any parcel without the Return Authorization will be rejected.
If your item is faulty or was incorrect, you must contact our sales representative before returning the parcel and we will endeavour to solve the problem effectively. Video or picture is required to show the item condition before we issue the Return Authorization.

Important notice

1. Any returned item(s) without Return authorization will be rejected.
2. Please return your item(s) in original packaging and ensure that all packages are securely wrapped
3. We will not accept responsibility for loss or damage of goods during transit, please ensure that the insurance cover option is taken where possible
4. Upon receipt, all products will be inspected at our discretion in 3-5 business days. Then, the updated result will be informed.
If you have made a mistake on purchase and wish to cancel the order before it is dispatched please contact us by email as quickly as possible.


1. We will ship your order in one business day once the payment is cleared.
2. Tracking number will be uploaded to your MXR customer account within 24 hours after shipment. Meanwhile, you will get the logistics notification mail.
3. Shipping time usually takes 3-7 business days when products available in local warehouses, and 5-25 business days to International addresses.
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6. Please understand that extra shipping fee may be needed for some International customers, especially buyers from affiliate islands of France, Italy, Portugal, Spain and so on.