Build
Car parts eCommerce that sells by reg and fitment
Car parts eCommerce has one rule the rest of retail does not: the customer must know the part fits before they buy. We build parts stores on Shopify, WooCommerce and Magento where reg lookup, K-Type fitment and OE number search are native, trade customers get their own pricing, and stock syncs with eBay Motors and Amazon.
Who we do this for
- Car Parts Retailers
- Motor Factors & Distributors
- Breakers & Dismantlers
- Tuning & Performance
- 4x4 & Off-Road
- Aftermarket Manufacturers
Native data integrations
A generic Shopify theme with a car parts collection returns wrong parts, and wrong-part returns eat margin. The fix is data: every product mapped to the vehicles it fits (TecDoc K-Types, ACES/PIES, eBay compatibility or your own fitment table), every OE and cross-reference number searchable, and a reg lookup at the top of the page that filters the catalogue to the customer's car.
We have built parts stores since 2006. Kitspares sells kit car spares. Milner Off Road sells Japanese 4x4 parts by vehicle. Scorpion Exhausts runs a B2B store for its dealer network. Each has different fitment logic, different pricing rules and different marketplaces, and that is the point: parts eCommerce is not one product.
Platform choice follows the catalogue. Shopify for a clean, fast store with a few thousand SKUs and a marketplace channel. WooCommerce where WordPress content and SEO are the growth engine. Magento or Adobe Commerce for large catalogues, complex B2B pricing and ERP integration. We tell you which at scoping, and we have built on all three.
Sound familiar?
You probably need this if
- Customers ring to ask whether it fits before ordering, or order and send it back.
- Your eBay store outsells your website and the two stock levels are managed by hand.
- Trade customers phone the counter because the website cannot show their price or their account.
- Product data came from a supplier CSV and half the titles are just the part number.
- Search for an OE number returns nothing even though you have the part on the shelf.
- You are on a platform that cannot do fitment without a plugin that breaks every update.
Deliverables
What you get
- Store build on Shopify, WooCommerce or Magento with a fitment-first catalogue structure.
- Reg lookup (DVLA VES, UKVD or similar) that identifies the vehicle and filters the catalogue to what fits.
- Fitment mapping from TecDoc, ACES/PIES, eBay K-Type compatibility or your own data, with a year/make/model selector as fallback.
- OE number, cross-reference and supersession search.
- B2B trade portal: account pricing tiers, credit terms, quick order by part number, order history and rep views.
- Marketplace sync with eBay Motors and Amazon Automotive for stock, price and orders, via Linnworks, ChannelEngine or direct API.
- Product data enrichment: titles, attributes, images and fitment cleaned before import.
- Google Shopping feed with fitment-aware titles, plus the SEO groundwork for category and part pages.
B2B trade portals and motor factor ordering
Trade buyers do not browse; they order. A trade portal gives each account its own pricing, credit limit and delivery rules, quick order by part number or CSV, back-order visibility and a rep view for orders taken by phone. For motor factors we map the catalogue to TecDoc so a garage can order by reg and get the right part first time.
Marketplace sync: eBay Motors and Amazon Automotive
eBay Motors and Amazon are where UK parts buyers already are, and both punish stock errors. We sync stock, price and orders between the store and the marketplaces, push K-Type compatibility to eBay listings and fitment data to Amazon's Part Finder, and keep one stock figure across all channels.
Reg lookup and fitment as native features
Reg lookup is not a widget bolted to the header. It sets the customer's vehicle for the whole session, filters every category and search, tags the basket with the vehicle, and passes it to the order so returns can be traced to a fitment error and fixed in the data. That is how a parts store gets its returns rate down.
Go deeper
Car Parts eCommerce: specialisms
Build
Shopify Car Parts Store
A Shopify car parts store lives or dies on fitment.
Read moreBuild
WooCommerce Car Parts Store
WooCommerce car parts stores suit retailers who want to own their platform, their data and their hosting bill.
Read moreBuild
Magento Car Parts Store
Magento car parts stores are the right call when the catalogue is big, the customers are trade as well as retail, and one back end has to run several storefronts.
Read moreProcess
How we approach it
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Catalogue audit
We look at your product data, where fitment comes from (or does not), pricing rules, trade accounts and which marketplaces you sell on.
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Data design
Decide the fitment source (TecDoc, K-Type, own table), the identifiers (OE, MPN, EAN), and how stock flows between store, marketplaces and warehouse.
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Platform and build
Choose Shopify, WooCommerce or Magento, then build with fitment, reg lookup and trade features as core rather than add-ons.
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Data load and QA
Import the cleaned catalogue, test fitment against real regs and known-awkward vehicles, test trade pricing per account.
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Launch and sync
Redirects from the old store, marketplace channels connected, feeds validated in Merchant Center, order flow tested end to end.
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Grow
Handover to our SEO, Shopping and email teams, who already know the data because they helped build it.
Proof
Work like this
Kitspares · 2015
A parts store built for people who build their own cars
Milner Off Road · 2015
Best-seller landing pages for a 4x4 specialist that ships worldwide
Scorpion Exhausts · 2016
Dealer orders straight into Orderwise, with no re-keying
Car Parts eCommerce: common questions
Which platform is best for a car parts website?
Shopify for speed and simplicity up to a few thousand SKUs, WooCommerce when content and SEO drive the business, Magento or Adobe Commerce for large catalogues and complex B2B pricing. All three can do reg lookup and fitment properly if the data is built right.
Can customers search parts by number plate?
Yes. We integrate a VRM lookup that returns make, model, engine and year, match that to a K-Type or your own vehicle table, and filter the catalogue to parts that fit. The reg is remembered so the customer can browse the whole store for their car.
Where does fitment data come from?
TecDoc (TecAlliance) for mainstream aftermarket, ACES/PIES for US-origin data, eBay's K-Type compatibility lists, manufacturer catalogues, or your own knowledge captured into a fitment table. Most stores end up with a blend.
Can you sync stock with eBay and Amazon?
Yes. Stock, price and orders sync between your store and eBay Motors and Amazon Automotive, either through a multichannel tool such as Linnworks or ChannelEngine or direct via the marketplace APIs, with compatibility pushed to the listings.
Do you build B2B trade ordering portals?
Yes. Trade customers log in to see their price tier, credit terms and order history, order by part number or CSV upload, and your reps can order on their behalf. Scorpion Exhausts runs a B2B store built this way for its dealers.
Can you fix our product data before we go live?
Yes. Product data enrichment is a service in its own right: we clean titles, normalise attributes, cross-reference OE numbers and attach fitment before the import, so the store launches with searchable, sellable data.
Sectors
Who we do this for
Car Parts Retailers
Car parts marketing agency built on fitment: TecDoc K-Type, reg lookup, eBay and Amazon feeds on Shopify, WooCommerce or Magento.
View servicesMotor Factors & Distributors
Motor factor website and trade ordering portal with VRM lookup, TecDoc catalogue, MAM Autopart, branch stock and account pricing.
View servicesBreakers & Dismantlers
Breakers yard website with used parts listed by donor VRM and K-Type, in sync with Pinnacle and eBay, plus scrap-my-car leads.
View servicesTuning & Performance
A tuning company website that books dyno and remap slots and sells performance parts with hand-built fitment, written to ASA rules.
View services4x4 & Off-Road
4x4 parts website design with chassis-number fitment, international shipping and eBay sync for Land Rover and pickup specialists.
View servicesAftermarket Manufacturers
Aftermarket parts manufacturer marketing: TecDoc and PIES data distribution, where-to-buy locators, D2C stores and brand content.
View servicesRelated services
Build
Shopify Car Parts Store
A Shopify car parts store lives or dies on fitment.
Read moreBuild
WooCommerce Car Parts Store
WooCommerce car parts stores suit retailers who want to own their platform, their data and their hosting bill.
Read moreBuild
Magento Car Parts Store
Magento car parts stores are the right call when the catalogue is big, the customers are trade as well as retail, and one back end has to run several storefronts.
Read moreIntegrations
eBay Motors Integration
eBay Motors integration connects your parts store, yard management system or catalogue to eBay UK so listings, K-Type compatibility, stock and orders stay in sync.
Read moreTalk to the pit wall
Talk to us about car parts ecommerce
Tell us what you sell, fix, break or race and what is getting in the way. We will come back within one working day with a straight answer and, if it fits, a fixed-price scope.