Alternative part detail / Vanquish
Rear diffuser assembly
Public compatibility, sourcing and modification information for this alternative part.
Unverified0 approved owner verificationsOnly moderated owner submissions count towards this total.
Reported compatibility
- Vanquish
- Yes
- Vanquish S
- Yes
Part numbers
- Original part number
- 1R12-185742-AA
- Alternative part number
- Not stated
Modification required
What needs to change
Catalogue research, 14 September 2026: Exact reference identified as diffuser assembly.
Sources:
https://astonmartinbits.com/products/1r12-185742-aa
Confirm the original part, vehicle specification and installation requirements before ordering.
Sourcing information
- Manufacturer / supplier
- Not stated
- Indicative cost
- Not stated
Information review
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Owner fitment reports
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- Detailed installation and modification comments
- The model, year and variant attached to each report
- Supporting fitment photographs when supplied