MapleV

CAPA vs OEM vs aftermarket Tesla parts: what's the difference?

Short answer: OEM = the automaker's own part; aftermarket = a third-party equivalent, where quality ranges from budget to excellent; CAPA-certified = an aftermarket part that an independent body (the Certified Automotive Parts Association) has tested to OEM fit, finish and materials standards; OEM-reman = a genuine part remanufactured back to working condition.

In practice the choice is made part by part. Tesla recommends genuine Tesla parts for every repair. In British Columbia, ICBC's repair standards accept aftermarket plastic bumper covers and trim of similar kind and quality to OEM, require CAPA or NSF certification on aftermarket sheet metal, bumper systems and structural parts, and ask repairers to use the most cost-effective part once delivery delays and loss of use are counted. The sections below quote both.

OEM

Made by, or for, the vehicle manufacturer — the same part fitted on a new car. Best guaranteed fit and the highest cost, and often the slowest to source if Tesla backorders it.

Aftermarket

Produced by third-party manufacturers, not the automaker. Quality varies widely — from budget panels to parts built to OEM tolerances — so the manufacturer and pre-shipment inspection matter. Typically priced well below OEM and available locally, which keeps a repair moving.

CAPA-certified

CAPA-certified parts are aftermarket parts that the Certified Automotive Parts Association — an independent, non-profit certifier — has tested against OEM standards for fit, materials and finish, with a traceable certification seal on each certified part. It is a quality benchmark within the aftermarket, not a separate manufacturer.

OEM-reman (remanufactured)

A genuine OEM part remanufactured back to working specification. Common on mechanical and electronic components; it pairs genuine-part fit with a lower price than new OEM.

What Tesla says

Tesla's service and collision repair manuals say only Tesla-approved parts should be used on Tesla repairs, and that Tesla does not support third-party replacement, used or recycled parts because it cannot confirm they won't affect vehicle safety. Those parts are not covered by Tesla's warranty, and a Tesla Approved Collision Center that doesn't follow the rule can lose its approval.

Tesla's own parts page also says spare parts for Tesla vehicles “can be sourced from Tesla, Tesla affiliates, or fully independent aftermarket producers” — and that because Tesla isn't involved in designing or testing aftermarket parts, it recommends Tesla Genuine Parts.

What ICBC's standards say in BC

ICBC's material damage procedures set the standard by part type. Aftermarket plastic bumper covers, valances, air dams, mechanical parts and other plastic components must be of similar kind and quality to OEM. Aftermarket bumper systems, structural parts and sheet-metal parts must be CAPA- or NSF-certified. Aftermarket lights must be SAE and/or DOT approved, and aftermarket ADAS components — parking sensors, cameras, radar — must be CAPA-certified.

ICBC also tells repairers to use the most cost-effective part with the net claim cost in mind, including delivery delays and any loss-of-use cost — so a part on a shelf in Metro Vancouver today can make the cheaper claim. And before estimating, the shop must confirm whether the owner has Replacement Cost Coverage or New Vehicle Replacement Plus: with those, ICBC repairs the car with new parts from the original manufacturer, if available.

How to choose, part by part

Structural repairs — rails, pillars, sills and other bonded body structure: follow Tesla's structural repair procedure with genuine new parts.

Bolt-on collision parts — bumper covers, valances, lamps, brackets, grilles, liners and trim: these make up most Tesla collision estimates, and a quality aftermarket part matched to the Tesla OE number is the usual lower-cost choice. On an ICBC claim, plastic covers and trim need to be similar kind and quality to OEM, and aftermarket lights need SAE/DOT approval.

Sheet metal and bumper systems — fenders, hoods, bumper beams and crush cans: on customer-pay work the shop and the owner choose; on an ICBC claim, an aftermarket version must be CAPA- or NSF-certified. OEM-reman hoods and fenders are another option on several models.

Cameras and parking sensors: if the repair touches one, follow Tesla's calibration steps afterwards, whichever part you fit — see our ADAS calibration guide.

How MapleV's line maps to these

MapleV supplies quality-inspected aftermarket and OEM-reman Tesla Model 3 and Model Y collision and suspension parts cross-referenced to Tesla OE numbers, with CAPA-certified options arriving on select part numbers and genuine ZF Lemförder OEM on key suspension links. Part selection for an insurance claim is made by your shop on the estimate.

Where Tesla lists the exact same OE number, MapleV's list prices add up to about half of Tesla's Canadian list prices (259 parts compared, September 2026); rough ranges by part type are in our price guide. Parts ship from stock in Metro Vancouver — same-day and next-day locally, by ground courier across Canada — and every shipment is inspected before dispatch.

Frequently asked

What does CAPA-certified mean?

It means an independent non-profit — the Certified Automotive Parts Association — has tested that aftermarket part against OEM standards for fit, materials and finish and issued a traceable certification. It's a quality benchmark, not a manufacturer.

Does Tesla allow aftermarket parts?

Tesla's manuals say only Tesla-approved parts should be used, and Tesla does not support third-party, used or recycled parts because it cannot confirm their effect on safety; Tesla Approved Collision Centers follow that rule. Tesla's parts page also notes that spare parts can come from Tesla, its affiliates or independent aftermarket producers. Outside Tesla's network, the shop and the owner choose — and on an ICBC claim, ICBC's standards apply.

Are aftermarket parts allowed on an ICBC claim?

Yes, when they meet ICBC's standards of performance — the certification rules are in the next answer. Your collision shop selects the parts on the estimate.

Which aftermarket parts does ICBC require to be certified?

Aftermarket bumper systems, structural parts and sheet-metal parts must be CAPA- or NSF-certified. Aftermarket lights must be SAE and/or DOT approved, and aftermarket ADAS components such as parking sensors and cameras must be CAPA-certified. Plastic bumper covers, valances, air dams and other plastic parts must be of similar kind and quality to OEM.

When does ICBC use new OEM parts?

When the owner has Replacement Cost Coverage (available on vehicles up to three model years old) or New Vehicle Replacement Plus (up to two model years old), ICBC repairs the car with new parts from the original manufacturer, if available. The shop confirms these coverages before writing the estimate.

Does MapleV sell CAPA-certified parts right now?

CAPA-certified options are arriving on select Model 3 / Model Y part numbers. Our current line is quality-inspected aftermarket and OEM-reman, cross-referenced to Tesla OE numbers.

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