Browse our inventory of used OEM Audi parts sourced from US-based salvage facilities. Every component is a genuine factory-original part inspected for condition and listed with full vehicle compatibility details. Audi's Volkswagen Group platform architecture means many Audi structural and drivetrain components cross-reference with VW, SEAT, and Skoda equivalents — expanding the available donor pool significantly. Free shipping on all US orders. VIN and chassis code fitment confirmed before dispatch.
New OEM Audi parts carry some of the highest dealer pricing in the mainstream European segment. Used OEM from accident-damaged low-mileage donors delivers the same factory engineering — Audi's precision manufacturing, quattro drivetrain tolerances, and aluminium-intensive construction — at 50–65% less. The Volkswagen Group's shared platform architecture means that for many components, equivalent parts from VW Passat, VW Tiguan, and Porsche Cayenne donors expand availability beyond what Audi-only donors provide.
Audi Models & VW Group Platform Cross-Reference
| Audi Model |
VW Group Platform / Cross-Reference |
Notes |
| Audi A4 / S4 (B5) |
VW Passat B5 (PL45 platform) |
B5 A4/S4 and VW Passat B5 share front suspension and subframe architecture — always confirm quattro vs. FWD before ordering structural components |
| Audi A4 / A5 / Q5 (B8/B8.5) |
MLB platform — Audi-specific; some overlap with VW Touareg (2nd gen) and Porsche Cayenne (2nd gen) on drivetrain |
B8 platform uses extensive aluminium construction — front spindle knuckles and suspension components are highly model and trim-specific; always match by OEM part number |
| Audi A6 (C6/C7) |
MLB platform — Audi-specific longitudinal quattro architecture |
A6 structural and drivetrain components are predominantly Audi-specific; front spindle knuckle assemblies (A4/A5/A6/Q5) cross-reference within the B8/C7 generation |
| Audi Q5 (8R) |
MLB platform — shares suspension geometry with A4 B8 and A5 |
Front spindle knuckle assemblies cross-reference between Q5, A4, A5, and A6 within the same MLB platform generation — confirm by OEM part number |
| Audi Q7 (4L) |
PL71 platform — VW Touareg (1st gen), Porsche Cayenne (1st gen) |
Transfer case and drivetrain components cross-reference with VW Touareg and Porsche Cayenne of the same generation — a much larger combined donor pool |
Important Fitment Notes for Audi Parts
Always Order by OEM Part Number on Audi Applications
Audi produces more variants of each component within a single model year than almost any other mainstream brand. Quattro and FWD variants use different front subframes. S-line, Sport, and base trim levels use different suspension and steering specifications. Left-hand drive (US market) and right-hand drive variants differ on many components. The OEM part number stamped on your existing unit is the most reliable fitment reference — always provide it when ordering any Audi structural or suspension component.
Quattro AWD Components Require Exact Specification Matching
Audi's quattro system — whether Torsen, crown gear, or Haldex — uses transfer case and rear differential specifications that are unique to each model, drivetrain generation, and engine combination. Always specify your exact quattro variant (quattro, S tronic quattro, ultra quattro) and confirm the rear axle ratio before ordering any drivetrain component.
VCDS Coding Required on Most Electronic Components
The majority of Audi electronic modules — ABS units, steering racks with variable assist, adaptive cruise control modules, and infotainment systems — require coding using VCDS (VAG-COM Diagnostic System) or Audi factory diagnostic software after installation. This is a calibration procedure that must be performed by a qualified installer with the appropriate VW Group diagnostic equipment.
⚠️ Audi Variant Complexity — Always Provide Full VIN
Audi's option and variant system means two A4 B8s of the same year and engine can use different subframes, different spindle knuckle castings, and different transfer case ratios depending on trim, transmission, and quattro generation. Always provide your full 17-digit VIN — and the OEM part number from your existing component where possible — before ordering any Audi structural, suspension, or drivetrain part.
Need a Used OEM Audi Part?
Send us your VIN and OEM part number if available — we'll confirm platform compatibility, quattro variant, and current stock before anything ships.
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