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Guaranteed Fitment
Always the correct part
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In-House Experts
We know our products
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Added Value
Mounting, Balancing
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Fast Delivery
Estimated delivery: 7–15 business days
Product overview
Designed as a direct replacement for the Audi A4 B8 and A5 families, this new fuel pump assembly is referenced to OE numbers 8K0919051AJ and 8K0919051AS. It suits a wide range of TFSI petrol variants and is a sensible fix for symptoms such as poor starting, power loss or fuel pressure fault codes.
Inside the tank, the assembly supplies fuel to the high-pressure system of the TFSI engine. When it starts to fail, owners may notice longer cranking, hesitation under acceleration, a humming noise from beneath the rear seat or warning lights.
Vehicle compatibility
The listed fitment table includes 84 entries. A selection:
- Audi A4 B8 and A4 B8 Avant 2.0 TFSI and 2.0 TFSI quattro – 2009 to 2015
- Audi A4 Allroad B8 2.0 TFSI quattro – 2013 to 2016
- Audi RS4 quattro B8 Avant – 2012 to 2015
- Audi A5, A5 Sportback and A5 Convertible 1.8 TFSI and 2.0 TFSI, front-drive and quattro – 2009 to 2017
- Audi RS5 quattro Convertible – 2012 to 2015
Many more engine and date combinations are covered than shown here; contact us to check yours.
Key features
- Assembly-type pump for a simpler in-tank replacement
- Referenced to two Audi OE numbers
- Extensive coverage across sedan, Avant, Allroad, coupe, Sportback and convertible bodies
- New condition replacement part
Technical specifications
| Part type | Fuel pump assembly |
| OE-reference numbers | 8K0919051AJ, 8K0919051AS |
| Condition | New |
| Sold per | Piece |
| Approx. packed dimensions | 15 x 10 x 15 cm |
| Approx. packed weight | 1.3 kg |
Installation requirements
We advise professional installation. The pump is reached via the access panel beneath the rear seat. Relieve fuel pressure, disconnect the battery and keep any spark or flame well away. Fit a new seal if the existing one is hard or damaged, then check for leaks and clear fault codes.
Allow the system to prime before the first start.
Fitment checks before ordering
B8-platform Audis use several pump assemblies depending on engine and drivetrain. Match the number on your existing unit and confirm by VIN before ordering.
Package inclusions
1 x fuel pump assembly. Lock ring and seal are not included unless stated.
Shipping information
Shipped from China to customers in Australia and New Zealand. Freight is calculated at checkout based on your delivery address, and actual freight is confirmed at the time of order.
Special Order Item
This product is a special-order item sourced specifically for your vehicle. Please allow an estimated lead time of 3-4 weeks for sourcing and delivery. Lead times are estimates and may vary depending on supplier availability, order processing, and international shipping. We recommend confirming availability before placing your order.