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How to buy parts for your car

Buying the right car part comes down to five steps: pin down the exact part (by VIN and build date) → pick a source → check it fits your car → check its condition and your return rights → buy. Your cheapest options are usually used/recycled parts from an auto wrecker or a salvage donor vehicle; new genuine parts from a dealer cost more but guarantee fit. Take extra care with anything safety-related — brakes, steering, suspension, seatbelts and airbags — and never buy airbags or seatbelt pretensioners used.

General guidance for Australia. Safety-part rules, warranty terms and consumer rights vary by seller and state — confirm with a licensed mechanic and the seller before you rely on a part, especially for anything that affects safety.

1. Pin down the exact part

Most wrong-part purchases happen because "year and model" isn't precise enough. The same model can use different parts depending on its build date, series and variant. Get these before you shop:

  • VIN — the 17-character number found in several places: the build/compliance plate, the lower corner of the windscreen, stamped on the firewall or a chassis rail, a door-jamb label, and on your rego papers. (Cars built before 1989 use a shorter chassis number.) It identifies the exact build.
  • Build date — month and year of manufacture, not just the model year. A "2016" car built in late 2015 can differ from one built in mid-2016.
  • Series / variant / trim — e.g. the facelift, the engine size, 2WD vs 4WD, the trim level. These change bumpers, lights, looms and more.
  • The part number — most genuine parts are stamped or labelled with a manufacturer part number. Matching it is the surest way to get the right part.
  • Engine and transmission codes — essential when buying an engine, gearbox or driveline part.

2. Where to buy parts in Australia

  • Auto recyclers & wreckers (used genuine parts) — usually the cheapest for panels, doors, lights, interior trim and many mechanical parts. Australia has a large, established dismantling industry; many recyclers list stock online and will quote on a VIN.
  • A salvage donor vehicle — for a big repair or a hard-to-find part, buying a damaged car of the same make and model at a salvage auction and parting it out can be cheapest overall. See buying salvage cars for parts.
  • New genuine (OEM) from a dealer — the priciest, but guaranteed to fit and brand-new. Worth it for safety parts and anything you can't risk getting wrong.
  • Aftermarket (new, non-genuine) — cheaper than genuine and fine for many consumables and panels; check the brand's quality and that it meets any Australian Design Rule (ADR) requirement for that part.
  • The Auction Intel parts marketplace — recycled parts listed against their donor vehicle, so you can match by make, model and donor VIN.

3. New vs aftermarket vs used — which to choose

  • Used / recycled — best value for panels, body parts, lights, glass, trim and lower-wear mechanical parts. Check condition and history.
  • Aftermarket — good for low-risk consumables (filters, wiper blades) and common panels; quality varies by brand. For braking, steering or engine-timing parts, make sure the aftermarket part meets the correct specification/ADR and is fitted by a qualified mechanic.
  • New genuine — for safety-critical parts, electronics that must be coded to your car, and anything where a wrong or worn part isn't worth the risk.

4. Check it actually fits

Before you pay, confirm the part is right for your exact build — give the seller your VIN and ask them to confirm fitment, or match the part number against your old part. Watch for parts that look identical but differ by series, drivetrain, engine, or left/right side. Some parts interchange across several model years; a good recycler will tell you the compatible range.

5. What to check before you buy

  • Condition & wear — for mechanical parts, ask about the donor's kilometres and why it was dismantled. Inspect photos closely.
  • Returns & consumer rights — parts bought from a business generally come with Australian Consumer Law guarantees (for second-hand parts, judged against their age and price), and reputable recyclers offer a warranty or return window. A genuine private (person-to-person) sale carries none. Auctions sit in between — when a business sells through an auction some guarantees still apply, and a "sold as is" sign can't remove the ones that do. Confirm the seller's status and the return/warranty policy in writing before paying, and check current ACCC guidance if unsure.
  • Safety & airbag (SRS) parts — treat brakes, steering, suspension, seatbelts and airbags with real caution and have them fitted by a qualified mechanic. Airbags and seatbelt pretensioners are single-use devices: replace them with new or certified units, never used ones — a used SRS part can be spent, damaged, or from a recalled batch (such as the compulsory Takata recall) and can't be verified safe by inspection. SRS work is regulated in some states; if in doubt, buy safety parts new.
  • ADR & roadworthy compliance — a safety part (lights, glass, seatbelts, brakes) must meet the relevant standard whether it's new, aftermarket or used. Check with a licensed mechanic or your state's roadworthy authority before relying on it.
  • Stolen-parts risk — buy from established sellers who can show where a part came from; be wary of major components offered cheap with no history.

6. Buying parts to repair a write-off

If the parts are going into a repairable write-off you intend to re-register, keep every receipt and note the donor vehicle's VIN for major used components — the identity inspection in most states wants to see where structural and major parts came from. Our full buy, repair & register guide covers the documentation trail.

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