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Ship a car part by cleaning off oil and grease, wrapping sharp edges, and using a double-walled box rated for the part's weight. Drain fluids first, bag small hardware with the part, and photograph everything before sealing the box.
Car parts break the usual packing rules in two ways: they are dense for their size, and they are often dirty, sharp, or oily. A heavy part in a light box will punch through the bottom. A greasy part will stain everything it touches. And a part with a sharp flange can cut through its own wrapping and the box wall. Handle those three problems and the rest is ordinary packing.
Clean the part as well as you reasonably can. Wipe off loose grease and dirt with rags and degreaser, and let it dry. A part that still weeps oil should go in a sealed plastic bag, with a second bag around the first if the first feels thin. Drain all fluids: oil, coolant, and fuel residue must come out before shipping, since carriers refuse parcels that leak and can hold a sender liable for damage to other parcels.
Remove or secure anything that sticks out. A mirror arm, a sensor tab, or a mounting bracket that juts out will snap or punch through the box. If it unbolts, remove it and bag it with the part. If it cannot come off, pad it with extra foam and position the part so the projection points into filler, not at a box wall.
Use a double-walled box for anything heavy, and check the box maker's weight rating, which is printed on the bottom flap stamp. Single-walled grocery boxes fail under dense parts: the bottom splits, or the hand holes tear out when a handler lifts it. For very heavy parts, like a brake rotor or an engine block piece, reinforce the bottom with an extra sheet of cardboard inside, taped flat, and tape the bottom seams in an H pattern.
Size the box so the part sits in the middle with filler on all sides, not wedged tight against the walls. A part that touches a wall transmits every knock straight into the metal. For oddly shaped parts, like an exhaust manifold, a custom fit helps: cut cardboard to brace the shape, or fill the gaps with crumpled paper packed hard.
| Part type | Box choice | Key packing step |
|---|---|---|
| Light trim, mirrors, lights | Single or double-walled box, bubble wrap | Protect lenses and painted faces from scratches |
| Brake parts, suspension arms | Double-walled box, H-taped bottom | Wrap sharp edges, bag to contain grease |
| Engine parts, transmissions pieces | Double-walled box or crate for the heaviest | Drain fluids fully, brace the shape with cardboard |
| Body panels, bumpers | Oversize box or wrapped panel with edge guards | Edge guards on every corner, face protection |
Some car parts cannot go by ordinary parcel post at all. Airbags and seatbelt pretensioners contain explosives and are classed as hazardous goods, with strict shipping rules. Lead-acid batteries are heavy, corrosive, and restricted. Parts soaked in fuel, or shipped with fuel in them, are refused by most carriers. If your part falls in one of these groups, check the carrier's hazardous-goods rules before you pack anything, or use a specialist freight or parts shipper.
Small lithium batteries, like those in key fobs or some sensors, have their own rules too: installed batteries usually ship more easily than loose ones, and loose lithium batteries face tight limits. When in doubt, ask the carrier counter before you buy a label.
Yes. Put bolts, clips, and small brackets in a sealed bag taped to the part or tucked into the top of the box, so they cannot wander loose and dent the part. Include a note with the part name, the vehicle it fits, and your contact details. If the part is used, note its condition honestly: a buyer who finds undisclosed damage is a return waiting to happen, and the return trip doubles your shipping cost.
Photograph the part from several angles before packing, then photograph the packed box and the label. Keep the tracking receipt until delivery is confirmed. For high-value parts, consider insurance and a signature on delivery, so the parcel cannot be left on a porch. A photo trail settles most "it arrived damaged" disputes fast, since it shows the part's condition when it left you.
Only within the service limits. LetterAgent provides Canada Post Xpresspost shipping labels for parcels within Canada, up to 5 kg. You ask your AI assistant for a label, approve the exact quoted price, pay once through Stripe, and receive a label PDF. Many car parts pass 5 kg on their own, and oversize panels may exceed parcel size limits too, so weigh and measure the finished parcel first. Heavier, larger, or hazardous parts need a carrier counter or freight service instead.
Ready to ship it? Get a shipping label with LetterAgent: describe it to your AI assistant, approve the exact quoted price, and get your label.
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