Used vs Aftermarket vs Genuine Car Parts

When your car needs a new part, you typically have three options: used OEM from a wrecker, aftermarket from a third-party manufacturer, or genuine new from the dealer. Each has trade-offs. Here's how to choose.

Quick Comparison

Used OEM Parts (From Wreckers)

Used OEM parts are genuine manufacturer parts removed from end-of-life or accident-damaged vehicles. A used Toyota alternator from a wrecker is the exact same part Toyota fitted at the factory — it just costs a fraction of the new price.

Best for:

• Expensive components — engines, gearboxes, ECUs
• Body panels and lights where colour and fitment must match exactly
• Older vehicles where aftermarket options are limited or don't exist
• Interior parts like dashboards, seats, and trim pieces

Aftermarket Parts

Aftermarket parts are manufactured by companies other than the original vehicle maker. Quality ranges dramatically — from premium brands that match or exceed OEM quality to budget options that may not fit properly or last as long.

Best for:

• Common wear items — brake pads, filters, spark plugs
• Performance upgrades — exhaust systems, suspension, intake
• Universal accessories — roof racks, bull bars, lighting upgrades

Watch out for:

• Poor fitment on budget brands — gaps, misalignment, or wrong mounting points
• Shorter lifespan on cheap electrical components
• Headlights and tail lights that look similar but don't seal properly, leading to moisture damage

Genuine New Parts (From the Dealer)

Genuine parts come directly from the vehicle manufacturer via the dealer network. They're brand new, come with a factory warranty, and guarantee perfect fitment. The downside? They're expensive. A genuine bumper can cost 3-5 times what a wrecker charges for the same part in good condition.

Best for:

• Safety-critical components — airbags, seat belts, crash sensors
• Vehicles still under warranty (to avoid any disputes)
• Rare or highly specific parts where used isn't available

Our Recommendation

For most repairs, used OEM parts from a verified wrecker offer the best balance of quality and value. You get genuine manufacturer quality without the genuine price tag. Save the dealer for safety-critical items and warranty-sensitive repairs.

On PartsClub, every wrecker is verified and most offer warranties. You can browse thousands of used OEM parts from wreckers across Australia, compare prices, and buy with confidence.

Frequently Asked Questions