Tesla Model 3 & Model Y aftermarket parts: catalogue data and OE coverage
Here are the numbers behind MapleV's Tesla parts catalogue, for estimators, journalists and anyone sizing up the aftermarket Tesla collision-parts market in Canada. The catalogue covers 287 Model 3 and Model Y collision and suspension parts, cross-referenced to 521 distinct Tesla OE part numbers across 355 base numbers in the published dataset (snapshot of 2026-08-29; the live OE lookup shows the numbers currently published).
Every primary OE number was checked against Tesla's official Canadian parts catalogue in August 2026. Of 282 eligible records: 49.6% returned the identical full OE string, a further 48.2% returned a different full number sharing the same seven-digit base, and six returned neither. The six are listed individually in our published audit file — two are carried by the catalogue under a different number we already cross-reference, two are pre-facelift Model 3 headlamps, one is a Highland Performance trim piece, and one is a seat switch whose number did not resolve. It's the kind of coverage that lets a body shop quote an aftermarket Tesla panel against a Mitchell or Audatex line without guessing at interchange.
The catalogue in numbers
287 parts across Tesla Model 3 (2017 onward, including the 2024 Highland refresh) and Model Y (2020 onward, including the 2025 Juniper refresh) — bumpers and fascias, fenders, hoods and front-end panels, headlamps and tail lamps, mirror covers, grilles and cooling, underbody shields, wheel liners, brackets, and front and rear suspension.
521 distinct Tesla OE part numbers are cross-referenced across those 287 parts — because a single physical part is often sold by Tesla under several numbers as it is revised, and because differing build configurations (for example, with or without park-assist sensor holes) each carry their own number.
Of 282 eligible primary OE records checked against Tesla's official Canadian parts catalogue: 49.6% returned the identical full string, 48.2% returned a different full number under the same seven-digit base, and six returned neither. The six are listed individually in our published audit file: two are carried by the catalogue under a different number that we already cross-reference, two are pre-facelift Model 3 headlamps, one is a Highland Performance trim piece, and one is a seat switch whose number did not resolve.
Why 116 parts carry multiple revision numbers
Tesla revises parts continuously, issuing a new revision letter (-A, -B, -C…) each time. In the MapleV catalogue, 116 part families carry two or more revision letters of the same base number — a single wheel liner spans -C, -D and -E; a rear aero shield spans -D through -F. Revision letters across the catalogue run all the way from A to L.
For a shop, the practical rule is: search on the 7-digit base number and treat the trailing letter as a version. Confirm the match against the vehicle and Tesla's EPC before ordering — a shared base is a search key, not proof of interchangeability. A fuller explanation is in our guide to reading Tesla part numbers.
Middle-code variants in the data
The catalogue also records the two characters that sit between the base and the trailing letter — we call them the middle code, for counting purposes only. Across the 521 globally deduplicated full OE numbers in the 2026-08-29 frozen snapshot: 428 use 00, 15 use S0, 12 use E0, 9 use SC and 9 use EC; eleven further codes account for the remaining 48. We report these observed values without assigning them Tesla-defined meanings — we have not been able to source a definition to Tesla documentation, so we do not guess at one.
A small number of entries also carry a -CN- code; we record that value without asserting what it denotes.
Look any of it up
All of this data is searchable free, with no login, through the MapleV OE lookup tool — type any Tesla Model 3 or Model Y OE number, with or without dashes or by its 7-digit base, to identify the part and see every cross-reference number. The full browsable table is on the cross-reference page.
Frequently asked
How many Tesla parts does MapleV catalogue, and for which models?
287 collision and suspension parts for the Tesla Model 3 (2017 onward, including 2024 Highland) and Model Y (2020 onward, including 2025 Juniper), cross-referenced to 521 distinct Tesla OE part numbers.
How accurate are the OE numbers?
Of 282 eligible primary OE records: 49.6% returned the identical full string in Tesla's official Canadian parts catalogue, 48.2% returned a different full number under the same seven-digit base, and six returned neither. The six that did not resolve are listed individually in our published audit file at maplev.ca/data/tesla-oe-epc-audit-2026-08-26.json.
Why does one part have several OE numbers?
Tesla revises parts and issues a new revision letter each time (-A, -B, -C…), and differing build configurations each carry their own number. Search on the 7-digit base number and treat the trailing letter as a version, then confirm against the vehicle and Tesla's EPC before ordering.