What Is Parts Sourcing?

Parts sourcing: a definition

Parts sourcing is the process of locating a specific vehicle part that ordinary supply routes cannot deliver. A sourcing specialist identifies the exact manufacturer part number for one vehicle, then searches beyond a single distribution network — other markets, heritage programmes, specialists and new-old stock — until the part is found or ruled out.

Two words in that sentence do most of the work. Identification is establishing which part number actually fits the vehicle in front of you, which is a different question from what a catalogue returns for a model name. Search is what happens once the number is settled: checking availability across more than one supply network, because availability is a property of a network rather than of the part.

Everything else follows from those two. A sourcing job is finished when there is an answer — a part found, priced and on its way, or a clear statement that it no longer exists and what the realistic alternatives are. “We can't get it” from one screen is not an answer; it is the point at which sourcing starts.

Sourcing, procurement, purchasing: what the words mean in the trade

These words get used loosely, and in a workshop they usually describe who you ring rather than what happens. Separating them is worth two minutes, because they commit you to very different amounts of work.

• Purchasing, or buying, is placing an order for something already identified and known to be available. The decisions are made; the transaction is all that is left.
• Procurement is the wider commercial activity around that — supplier agreements, terms, account management and spend. It is a business function rather than a job on one vehicle.
• Sourcing is the step before either of them: establishing what exactly is needed and where in the world it can be obtained. On a routine service part it takes seconds and nobody calls it sourcing. On an obsolete panel for a fifteen-year-old vehicle it is the entire job.
• Factoring is stock-holding distribution. A motor factor buys in volume and sells from its own shelves, which is why it is quick on common lines and silent on rare ones.
• Brokering describes passing an order between buyer and seller without taking responsibility for identification. It is the thing a sourcing service is not — the identification is the service.

So when a workshop says a part needs sourcing, the honest translation is usually this: the normal route has returned nothing, and somebody now has to find out whether this part exists anywhere and under which number.

Where a parts sourcing specialist sits in the UK supply chain

UK competition law has already defined most of this, which is useful because it gives the trade a shared vocabulary. The Competition and Markets Authority's Guidance on Motor Vehicle Agreements explains the Motor Vehicle Block Exemption Order, and its definitions describe the ground a sourcing business stands on.

• A spare part is “a component of a motor vehicle which is, or is intended to be, installed in or on a motor vehicle to replace an original part”, and it “includes software”. That last clause matters more with every model year.
• An original part is “a component of a motor vehicle which is, or is intended to be, installed in or on a motor vehicle for the purpose of the initial assembly of a motor vehicle” — the part the car was built with, as distinct from the one replacing it.
• Aftermarket goods is the broader category: spare parts, the software needed to repair or replace a part or system, the codes needed to use that software, and the fluids a vehicle needs in order to work.
• An authorised distributor distributes those goods inside a manufacturer's own distribution system. An independent distributor distributes them for vehicles of that make from outside it. A parts sourcing specialist belongs in the second group.

That second category is a deliberate feature of how the aftermarket is regulated rather than a gap in it. The guidance treats restrictions on independent repairers' access to parts as a hardcore restriction, noting that independent repairers “may rely on the supply of such spare parts by independent wholesalers to have access to those parts on terms which do not place them at a disadvantage” against authorised repairers. It treats the identification data the same way: “the part code and any other information necessary to identify the correct motor vehicle supplier-branded spare part to fit a given individual motor vehicle” counts as repair and maintenance information, and “the independent operator should not have to purchase the spare part in question to be able to obtain this information”.

In plain terms: an independent workshop is entitled to the same genuine part under the same number as a franchised one, and a sourcing specialist is one of the routes by which it gets there.

What a parts sourcing specialist actually does

The visible part of the job — ringing round — is the smallest part of it. This is the order the work runs in.

1. Takes the brief properly. What the job needs, not what the catalogue heading calls it. A door skin, a door shell and a trimmed door are three different orders, and whether the part has to be painted, coded or calibrated afterwards changes what must be supplied with it.
2. Fixes the vehicle's identity. A registration gets the search started — the DVLA's public vehicle information service shows the basic record one holds — but the VIN resolves the exact build: model year, body style, market and running changes.
3. Resolves the part number and its supersession chain. Both numbers get recorded. The current number searches live stock; the original number searches new-old stock and used channels, where nothing has been renumbered.
4. Agrees which categories of part are acceptable before any searching starts. Genuine only, genuine or OE supplier, or a graded used genuine part. The answer decides which channels are worth opening at all.
5. Searches more than one network. UK stock first, then the markets where the number is still a stock line, then heritage programmes, marque specialists and new-old stock. How to source hard-to-find car parts sets out the full sequence and the nine supply channels the UK trade uses.
6. Comes back with a comparable offer — the part number being supplied, the category of part, where it is physically coming from, the condition grade if it is used, the lead time for that specific source and the return position.
7. Handles what comes after the order: import formalities where the part is coming from overseas, delivery to the workshop, and a straight answer if something changes in transit.

Step four is the one a buyer in a hurry skips, and it is the one that saves the most time. There is no point opening the used and remanufactured channels for a job whose repair method makes the component replace-only, and no point restricting a thirty-year-old restoration to new genuine parts that stopped being made two decades ago.

Parts sourcing compared with the other ways to buy a part

None of these replaces another. A workshop uses all of them in a normal week, and the skill is recognising which one the part in front of you belongs to.

That last line is worth stating plainly, because it is the honest limit of the service. Sourcing improves the odds and shortens the search; it does not conjure components. What it should always produce is an answer you can plan a repair around.

What parts sourcing is not

• It is not a shop or a catalogue. There is no browse-and-buy list, because the service starts from a vehicle rather than from a product page.
• It is not a cheaper way to buy common parts. For a filter, a set of pads or a current panel sitting in UK stock, your factor or dealer is faster and is the right call.
• It is not a manufacturer franchise. An independent sourcing business has no affiliation with or approval from any vehicle manufacturer; manufacturer names are used descriptively, to identify the vehicle a part belongs to.
• It is not a way of passing one category of part off as another. Genuine, OE supplier, reclaimed genuine and remanufactured are different things, and an offer should name which one it is — see genuine, OEM, OES and aftermarket parts.
• It is not retail. A trade-only service deals with workshops, which is what allows the conversation to begin at the VIN rather than at “what car is it?”

Why parts sourcing exists

Sourcing is less a gap in the supply chain than a consequence of how the supply chain is built. Five things create the work.

• The vehicle parc is getting older. The SMMT's 2026 Motorparc release reports the total UK fleet rising 1.4% to 42,549,649 vehicles, and that “the UK's cars are getting older, with the average age rising to 9.7 years, up from 9.5 in 2024” — with “a record 45.7% of all cars on the road” now “in service for more than a decade”. Those are the vehicles whose parts have left the busy end of the supply chain.
• Stock is held per market, not globally. The same number can be back-ordered in the UK and a routine stock line in Germany or Japan on the same day. See back-ordered parts and international parts sourcing.
• Numbers move. Supersessions, consolidations and kit changes mean the number on an old diagram, invoice or box is frequently not the number currently supplied — and a search for a retired number comes back empty.
• Some vehicles were never common. Low-volume models, special editions, converted and imported vehicles carry parts no UK stockist holds, because the demand has never justified holding them. See hard-to-find parts.
• Manufacturers withdraw lines market by market. A part listed as no longer available here can still be catalogued elsewhere, and heritage or classic programmes cover some older models and not others. See obsolete and discontinued parts.

Set against all of that is the CMA's observation that “spare parts make up a large percentage of the cost of the average repair” — which is why a part that cannot be found stops a job rather than merely delaying it.

When a garage or bodyshop needs a parts sourcing service

The trigger is nearly always the same — the usual route has returned nothing useful and the vehicle is still in the bay — but it arrives in a handful of recognisable shapes.

• A part shows as on national back order, with a date that keeps moving.
• A dealer screen reports the number as NLA, obsolete or discontinued.
• The vehicle is an import or a home-market specification, and the UK catalogue does not list what it needs. See European and German car parts.
• The vehicle is old enough to be out of the dealer system but not yet old enough for a specialist network to serve it properly.
• The part is option- or trim-dependent, and the catalogue keeps offering variants that do not match the car in the bay.
• An estimate contains several difficult lines, and somebody has to work them in parallel with the standard order so the key-to-key time holds.
• A restoration needs a running list of parts found over months rather than a single order. See restoration parts.

What to send with a sourcing request

A search is only ever as narrow as the information it starts from. You do not need the part number — establishing it is the specialist's job — but the identification details decide how quickly it gets settled.

• Registration or VIN, plus a photograph of the VIN or chassis plate for imports and specialist vehicles.
• What the part is and where it fits, in the words a technician would use rather than the catalogue heading.
• The part number, estimate line or diagram reference if you have one.
• Photographs of the part. Labels, casting numbers, connector types and the damaged area settle variants that no written description will.
• Which categories of part you will accept, and the date the vehicle actually has to move.
• What has already been tried, so the search does not repeat your afternoon.

Don't know the part number? No problem. Send us the registration or VIN and as much information as you have.

Our guide to finding car parts by VIN or registration covers what each identifier reveals and where the VIN sits on most vehicles.

How parts sourcing is priced

There is no price list, and a sourcing service that publishes one is pricing a catalogue rather than a search. The price of a sourced part is the price from the source that actually has it, which is why a quotation should name the source and the lead time rather than offer a general figure.

• The source market sets the base price. The same genuine number can cost different amounts in different markets, and the cheaper market is not always the quicker one.
• Imports carry duty, import VAT and handling. Rates depend on the commodity code and origin of the specific item; HMRC's Trade Tariff is the authority, and an overseas shelf price should never be quoted to a customer as the landed price. See international parts sourcing.
• Condition and category change the comparison. A reclaimed genuine assembly and a new genuine one are not the same product, and an offer that does not say which it is cannot be compared with one that does.
• Transport belongs in the quotation, not after it. Panels, screens and large assemblies cost more to move and are more exposed to damage in transit.

Trade buyers also have more protection than many realise. Where goods are sold in the course of a business, section 14 of the Sale of Goods Act 1979 implies a term “that the goods supplied under the contract are of satisfactory quality”, judged against “the standard that a reasonable person would regard as satisfactory, taking account of any description of the goods, the price (if relevant) and all the other relevant circumstances”. That implied term does not extend to defects “specifically drawn to the buyer's attention before the contract is made” — which is the legal reason a used or remanufactured part should always be described as exactly what it is.

How REMCAM works as a parts sourcing specialist

REMCAM Automotive Ltd is an independent, trade-only parts sourcing business working with garages, bodyshops, accident repair centres, restoration specialists and fleet workshops across the UK. You send the registration, VIN or part details; we confirm the correct manufacturer part number for that exact vehicle, search our UK and international supplier network, and come back with what we can supply, where it is coming from, the price and the lead time for that specific source. Nothing is ordered until you approve it.

Where a genuine part no longer exists we say so and set out the realistic alternatives — genuine new-old stock, a used genuine part or a remanufactured unit — each labelled for what it is, so you can put an honest option to your customer. We are not affiliated with, approved by or an authorised agent of any vehicle manufacturer; manufacturer names are used to identify the vehicles we source parts for. See parts sourcing for how the service works, or send the details through Request a Part. We supply the trade only — private owners should ask their garage, bodyshop or restorer to make the request.

Sources

• GOV.UK / CMA — Guidance on Motor Vehicle Agreements (Motor Vehicle Block Exemption Order), 5 June 2023
• SMMT — One in 22 vehicles now zero emission as UK fleet reaches record high (Motorparc data, 24 April 2026)
• SMMT — Motorparc: UK registered vehicles in use
• GOV.UK — Get vehicle information from DVLA
• GOV.UK — Trade Tariff: look up commodity codes, duty and VAT rates
• legislation.gov.uk — Sale of Goods Act 1979, section 14 (implied terms about quality or fitness)