2017-2025 Audi Strut Tower Brace / Bar Left 8W0805645B

OEM Part #: 8W0-805-645-B (8W0805645B)

$19.49
Side: Left Used
Donor2025 Audi A5 SPORTBACK · 2.0L · 13k miles
SKU: 651947 · 30-Day Returns
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Strut Tower Brace / Bar 8W0805645B — Used (SKU 651947)
Genuine OEM Used SKU: 651947 Donor Vehicle: 2025 Audi A5 SPORTBACK · 2.0L · 13k miles 2 photos
$19.49
30-Day Returns
Strut Tower Brace / Bar 8W0805645B — Used (SKU 535918)
Genuine OEM Used SKU: 535918 Donor Vehicle: 2022 Audi A4 · 2.0L · 11k miles 2 photos
$20.49
30-Day Returns
Strut Tower Brace / Bar 8W0805645B — Used (SKU 555846)
Genuine OEM Used SKU: 555846 Donor Vehicle: 2018 Audi S5 SPORTBACK · 3.0L · 59k miles 2 photos
$20.49
30-Day Returns
Strut Tower Brace / Bar 8W0805645B — Used (SKU 514819)
Genuine OEM Used SKU: 514819 Donor Vehicle: 2019 Audi A5 · 2.0L · 25k miles 2 photos
$20.49
30-Day Returns
Strut Tower Brace / Bar 8W0805645B — Used (SKU 531295)
Genuine OEM Used SKU: 531295 Donor Vehicle: 2019 Audi A5 SPORTBACK · 2.0L · 50k miles 2 photos
$20.49
30-Day Returns
Strut Tower Brace / Bar 8W0805645B — Used (SKU 542922)
Genuine OEM Used SKU: 542922 Donor Vehicle: 2018 Audi S4 · 3.0L · 63k miles 2 photos
$20.49
30-Day Returns
Strut Tower Brace / Bar 8W0805645B — Used (SKU 545480)
Genuine OEM Used SKU: 545480 Donor Vehicle: 2018 Audi S5 SPORTBACK · 3.0L · 61k miles 2 photos
$20.49
30-Day Returns
Strut Tower Brace / Bar 8W0805645B — Used (SKU 610875)
Genuine OEM Used SKU: 610875 Donor Vehicle: 2021 Audi A5 SPORTBACK · 2.0L · 50k miles 2 photos
$20.49
30-Day Returns
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A used OEM Audi strut tower brace, OEM part number 8W0805645B, also superseding 8W0805645A and 8W0805645. This left-side strut tower bar (also called a strut brace) stiffens the front chassis on compatible A4, A5, S4, S5, and RS5 models with 2.0L, 2.9L, or 3.0L engines. When a brace loosens or fatigues, you may notice reduced steering precision or a clunk over bumps.

Specifications

Specifications for Strut Tower Brace / Bar 8W0805645B
Fits Vehicle ModelA4, A4 allroad, A5, RS5, S4, S5
Fits Vehicle MakeAudi
OEM Part No8W0-805-645-B (8W0805645B)
Compatible OEM Part No 8W0-805-645-A, 8W0-805-645
SideLeft
CategoryCore Support

Compatible Vehicles

Fits 74 vehicle configurations across 1 make, 2017-2025.

Check your specific vehicle before ordering. This list shows year, make, and model. Some years have multiple trims or engines that use different parts, and individual listings may have additional fitment notes (e.g. “with sunroof only”). Review the full variant list below, or message us with your VIN and we’ll confirm the match.

Audi

  • A4 2017-2025 · 13 variants 12 with notes
  • A4 allroad 2017-2025 · 9 variants 9 with notes
  • A5 2017-2025 · 16 variants 16 with notes
  • RS5 2018-2025 · 12 variants
  • S4 2018-2025 · 8 variants 7 with notes
  • S5 2017-2025 · 16 variants 16 with notes
View all 74 vehicle configurations — 60 with fitment notes
Full vehicle fitment list for Strut Tower Brace / Bar 8W0805645B
Year Make Model Trim Engine Note
2025 Audi A5 Hatchback 2.0L l4 Turbo For Vehicles with Production Date After 11/07/16
2025 Audi S5 Hatchback 3.0L V6 Turbo For Vehicles with Production Date After 11/07/16
2025 Audi RS5 Hatchback 2.9L V6 Turbo
2020 Audi A4 allroad Wagon 2.0L l4 Turbo 2017-25
2019 Audi A4 allroad Wagon 2.0L l4 Turbo 2017-25
2018 Audi A4 allroad Wagon 2.0L l4 Turbo 2017-25
2017 Audi A4 allroad Wagon 2.0L l4 Turbo 2017-25
2025 Audi S4 Sedan 3.0L V6 Turbo
2025 Audi A4 Quattro Sedan 2.0L l4 Turbo
2023 Audi A4 allroad Wagon 2.0L l4 Turbo 2017-25
2025 Audi A4 allroad Wagon 2.0L l4 Turbo 2017-25
2024 Audi A4 allroad Wagon 2.0L l4 Turbo 2017-25
2022 Audi A4 allroad Wagon 2.0L l4 Turbo 2017-25
2021 Audi A4 allroad Wagon 2.0L l4 Turbo 2017-25
2024 Audi A5 Quattro Coupe 2.0L l4 Turbo For Vehicles with Production Date After 11/07/16
2024 Audi A5 Hatchback 2.0L l4 Turbo For Vehicles with Production Date After 11/07/16
2024 Audi S5 Hatchback 3.0L V6 Turbo For Vehicles with Production Date After 11/07/16
2024 Audi S5 Coupe 3.0L V6 Turbo For Vehicles with Production Date After 11/07/16
2024 Audi RS5 Hatchback 2.9L V6 Turbo
2024 Audi RS5 Coupe 2.9L V6 Turbo
2024 Audi A4 Quattro Sedan 2.0L l4 Turbo For Vehicles with Production Date After 01/30/17
2020 Audi A4 Quattro Sedan 2.0L l4 Turbo For Vehicles with Production Date After 01/30/17
2020 Audi S4 Sedan 3.0L V6 Turbo For Vehicles with Production Date After 01/30/17
2019 Audi S4 Sedan 3.0L V6 Turbo For Vehicles with Production Date After 01/30/17
2020 Audi A4 Sedan 2.0L l4 Turbo For Vehicles with Production Date After 01/30/17
2019 Audi A4 Sedan 2.0L l4 Turbo For Vehicles with Production Date After 01/30/17
2018 Audi A4 Sedan 2.0L l4 Turbo For Vehicles with Production Date After 01/30/17
2018 Audi A4 Quattro Sedan 2.0L l4 Turbo For Vehicles with Production Date After 01/30/17
2017 Audi A4 Sedan 2.0L l4 Turbo For Vehicles with Production Date After 01/30/17
2017 Audi A4 Quattro Sedan 2.0L l4 Turbo For Vehicles with Production Date After 01/30/17
2019 Audi A4 Quattro Sedan 2.0L l4 Turbo For Vehicles with Production Date After 01/30/17
2018 Audi S4 Sedan 3.0L V6 Turbo For Vehicles with Production Date After 01/30/17
2019 Audi RS5 Coupe 2.9L V6 Turbo
2018 Audi RS5 Coupe 2.9L V6 Turbo
2019 Audi S5 Coupe 3.0L V6 Turbo For Vehicles with Production Date After 11/07/16
2022 Audi S4 Sedan 3.0L V6 Turbo For Vehicles with Production Date After 01/30/17
2024 Audi S4 Sedan 3.0L V6 Turbo For Vehicles with Production Date After 01/30/17
2023 Audi S4 Sedan 3.0L V6 Turbo For Vehicles with Production Date After 01/30/17
2021 Audi S4 Sedan 3.0L V6 Turbo For Vehicles with Production Date After 01/30/17
2019 Audi A5 Quattro Coupe 2.0L l4 Turbo For Vehicles with Production Date After 11/07/16
2020 Audi S5 Coupe 3.0L V6 Turbo For Vehicles with Production Date After 11/07/16
2020 Audi A5 Quattro Coupe 2.0L l4 Turbo For Vehicles with Production Date After 11/07/16
2017 Audi A5 Quattro Coupe 2.0L l4 Turbo For Vehicles with Production Date After 11/07/16
2017 Audi S5 Coupe 3.0L V6 Supercharged For Vehicles with Production Date After 11/07/16
2018 Audi A5 Quattro Coupe 2.0L l4 Turbo For Vehicles with Production Date After 11/07/16
2018 Audi S5 Coupe 3.0L V6 Turbo For Vehicles with Production Date After 11/07/16
2023 Audi S5 Coupe 3.0L V6 Turbo For Vehicles with Production Date After 11/07/16
2022 Audi A5 Quattro Coupe 2.0L l4 Turbo For Vehicles with Production Date After 11/07/16
2019 Audi A5 Hatchback 2.0L l4 Turbo For Vehicles with Production Date After 11/07/16
2021 Audi RS5 Hatchback 2.9L V6 Turbo
2023 Audi RS5 Coupe 2.9L V6 Turbo
2022 Audi A4 Quattro Sedan 2.0L l4 Turbo For Vehicles with Production Date After 01/30/17
2022 Audi RS5 Coupe 2.9L V6 Turbo
2021 Audi A4 Quattro Sedan 2.0L l4 Turbo For Vehicles with Production Date After 01/30/17
2023 Audi RS5 Hatchback 2.9L V6 Turbo
2022 Audi RS5 Hatchback 2.9L V6 Turbo
2023 Audi A4 Quattro Sedan 2.0L l4 Turbo For Vehicles with Production Date After 01/30/17
2019 Audi RS5 Hatchback 2.9L V6 Turbo
2021 Audi RS5 Coupe 2.9L V6 Turbo
2022 Audi A5 Hatchback 2.0L l4 Turbo For Vehicles with Production Date After 11/07/16
2023 Audi A5 Hatchback 2.0L l4 Turbo For Vehicles with Production Date After 11/07/16
2020 Audi A5 Hatchback 2.0L l4 Turbo For Vehicles with Production Date After 11/07/16
2021 Audi A5 Quattro Coupe 2.0L l4 Turbo For Vehicles with Production Date After 11/07/16
2021 Audi A5 Hatchback 2.0L l4 Turbo For Vehicles with Production Date After 11/07/16
2023 Audi A5 Quattro Coupe 2.0L l4 Turbo For Vehicles with Production Date After 11/07/16
2021 Audi S5 Coupe 3.0L V6 Turbo For Vehicles with Production Date After 11/07/16
2022 Audi S5 Coupe 3.0L V6 Turbo For Vehicles with Production Date After 11/07/16
2018 Audi A5 Hatchback 2.0L l4 Turbo For Vehicles with Production Date After 11/07/16
2023 Audi S5 Hatchback 3.0L V6 Turbo For Vehicles with Production Date After 11/07/16
2022 Audi S5 Hatchback 3.0L V6 Turbo For Vehicles with Production Date After 11/07/16
2021 Audi S5 Hatchback 3.0L V6 Turbo For Vehicles with Production Date After 11/07/16
2019 Audi S5 Hatchback 3.0L V6 Turbo For Vehicles with Production Date After 11/07/16
2020 Audi S5 Hatchback 3.0L V6 Turbo For Vehicles with Production Date After 11/07/16
2018 Audi S5 Hatchback 3.0L V6 Turbo For Vehicles with Production Date After 11/07/16

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