English specification desk How guides are written

Home / Auto Parts / How to specify a Body Kit

Auto Parts

How to specify a Body Kit

What to put on an RFQ for Body Kit: the ratings, documents, and constraints that change the quote.

25 Oct 2026 · 3 min read · Tradinor Desk

Specification points for Body KitTRADINOR · FIGUREWhat to lock for Body KitFitmentPerformanceSide and positionMaterial
Put these on the RFQ for Body Kit before you compare prices.

A buyer searching for Body Kit is usually trying to stop a bad substitute. A vehicle part is specified by the fitment, the performance limit, and whether it is a safety item. The notes below are selection criteria for a Body Kit. They are not a catalog promise. Confirm every rating on the current datasheet, drawing, or test report for the revision you will receive.

What has to be true of Body Kit

A vehicle part is specified by the fitment, the performance limit, and whether it is a safety item. For a Body Kit, start from the duty, then the interface to the rest of the machine or the room, then the document that proves the claim. A lower price that leaves one of those blank is a different product.

Body Kit is easy to confuse with Transmission Mount. If the quote could be read as either, add the line that separates them: the rating, the fitment, or the standard named below. Link the drawing number to that line so receiving inspection can reject the wrong one.

Numbers that change the quote

Line What to write for Body Kit
Fitment Vehicle, axle, or the dimensions that actually mate.
Performance The measurable limit: friction, load, flow, or electrical rating.
Side and position Left, right, front, rear, where that changes the part.
Material Compound, metal, or lining, if it changes life.
Standards Any type approval or test the market requires for that part.
Interchange The reference numbers you will accept, in writing.

How to compare two offers

Lay both quotes for Body Kit on one sheet and line up fitment, performance, and side and position. If a cell is empty, the offer is not finished. Ask for the missing line in writing. When those match, the honest difference is lead time, the test evidence, and who carries the warranty. Do not average a fully specified Body Kit with a cheaper line that omitted fitment.

Documents worth having before the deposit

Ask for a fitment statement, not only a photograph. The file should name Body Kit and the revision, not only the supplier’s homepage. A factory quality certificate such as ISO 9001 can sit beside that file. It does not replace it.

Failures that show up after delivery

  • Crossing a part number without checking side and sensor holes.
  • Treating a safety part as a cosmetic substitute.
  • Ignoring the electrical connector on a sensor.

On a Body Kit, the expensive version of the first mistake is discovering it after the goods are in the crate. Put the rejection condition in the purchase order while the supplier can still restate the offer.

A worked RFQ line

Use this shape, then replace the brackets with your duty: “Body Kit — State fitment, the performance number, side, and accepted references.” That sentence is a template, not a rating of any brand. If a supplier’s datasheet uses different units, convert them onto this sheet so the next offer can be compared.

Where words like IP67 belong

Searches often add a constraint to Body Kit: IP67, or RoHS / CE. Keep those on this page. IP67 is dust-tight plus a defined temporary immersion. It is not a rating for living underwater, and it says nothing about sunlight or salt. RoHS is a material limit. CE is a declaration that lists the rules relied on. Ask for the document that names this part number and revision. If you need a third constraint, add it as another line on the same drawing. A second URL that only swaps the adjective does not give a buyer a second fact.

Related in this section: how to specify Transmission Mount.

Questions buyers actually ask

What should an RFQ for Body Kit include?

State fitment, the performance number, side, and accepted references.

Is a cheaper Body Kit the same part?

Only if fitment, performance, and the documents match. A missing line is a different offer.

Do waterproof, OEM, or IP words need their own page?

No. For Body Kit they are extra lines on this specification. Ask for the test or the drawing that gives the word a value.