Enterprise Automotive Catalog & B2B Architecture on BigCommerce
Year-Make-Model vehicle lookup, tiered wholesale price lists, high-SKU inventory sync across regional distribution warehouses, and LTL pallet freight routing.

Client Background
About ARB 4x4 Accessories
ARB is a global leader in premium 4x4 accessories, expedition equipment, and aftermarket automotive hardware, serving retail off-road enthusiasts as well as commercial fleet and dealer networks worldwide.
Operational Friction
The Business & Industry Challenge
The automotive aftermarket space is plagued by high return rates caused by fitment errors—customers ordering bumpers, suspension systems, or roof racks that do not fit their specific vehicle chassis. Furthermore, ARB needed a unified platform capable of serving both direct retail consumers and high-volume commercial wholesale trade dealers who demand contract-specific pricing, Net-30 invoicing, tax exemption, and multi-warehouse inventory visibility across thousands of SKUs.
Specific Industry Bottlenecks Solved:
In automotive parts, fitment mistakes represent up to 25% of returns, costing tens of thousands in return freight for 100+ lb steel bumpers and suspension kits.
Dealers required contracted wholesale discount tiers and Net-30 checkout, while retail consumers needed standard MAP pricing and credit card payment—all on one shared domain.
Stock levels across regional distribution warehouses had to be accurately shown in real time without causing page latency or exceeding platform API limits.
Heavy steel equipment cannot ship via parcel carriers; dynamic quoting for commercial loading docks, liftgates, and local depot pickup was mandatory.
Engineering Execution
The Technical Solution
Northstar deployed an enterprise BigCommerce B2B Edition architecture featuring a custom Year-Make-Model vehicle fitment engine, multi-tier wholesale account management, custom REST API ERP middleware for multi-warehouse routing, and automated LTL freight quoting.
Deep-Dive Solutions
How We Solved Specific Automotive Parts & 4x4 Equipment Operational Headaches
Year-Make-Model (YMM) Fitment Engine with 'My Garage' Storage
Implemented an instant vehicle selector where buyers select their Year, Make, Model, and Trim once. The entire store filters strictly to compatible parts with visual 'Guaranteed Fit' badges, and the selected vehicle saves to the customer's account.
Gated Wholesale Dealer Portals with Tiered Contract Pricing
Leveraged BigCommerce B2B Edition to assign trade accounts into custom price tiers (Jobber, Wholesale, Master Distributor). Authorized dealers log in to see their specific net prices and Net-30 purchase order workflows.
Multi-Warehouse Routing & High-SKU Middleware Sync
Built custom REST API middleware that connects BigCommerce to ARB's warehouse management system. Inventory is routed dynamically to ship from the nearest regional distribution center with stock.
Automated LTL Pallet Freight & Commercial Depot Quoting
Engineered intelligent freight quoting that identifies whether an order requires freight pallet dispatch, calculates freight terminal pickup vs business dock delivery, and handles commercial tax exemptions automatically.
Key Architecture & Engineering Deliverables
- ACES/PIES compliant Year-Make-Model vehicle lookup engine integrated with catalog search
- BigCommerce B2B Edition implementation with multi-tier customer group pricing matrices
- Company account hierarchy with buyer permissions and quote-to-order approval workflows
- Custom REST API middleware connecting BigCommerce to regional ERP warehouse management
- Automated LTL pallet freight quoting with commercial dock vs residential liftgate options
- Bulk SKU quick-order entry pad and CSV upload for high-volume commercial fleet buyers
“In the 4x4 equipment industry, getting vehicle fitment right is everything. Northstar delivered a bulletproof Year-Make-Model search and B2B wholesale portal that handles our massive catalog and dealer network effortlessly.”
Questions Automotive Parts & 4x4 Equipment Store Owners Ask
Real architectural and operational considerations addressed by our senior engineering team.
The fitment database differentiates between strict chassis-specific components (bull bars, suspension lifts) and universal gear (recovery straps, tire deflators, camp fridges). Universal products remain visible across all vehicle filter views, while vehicle-specific parts require an exact match.
Yes. Retail shoppers see public MAP pricing and standard checkout. When approved wholesale dealers log in, the storefront dynamically switches to their contracted price list, displays real-time warehouse inventory, and provides Net-30 PO checkout.
Yes. We integrated a bulk Quick Order Pad where B2B buyers can either type in multiple part numbers and quantities or upload an Excel/CSV file to populate a 100-line order in seconds.
We integrated real-time LTL freight APIs that automatically classify items by freight class, calculate commercial loading dock vs residential liftgate delivery fees, and give customers the option to pick up at their nearest regional freight depot to save on shipping costs.
We integrated automated tax-exemption verification (Avalara/Vertex) within the B2B registration and checkout flow. Verified wholesale accounts are exempted from sales tax automatically upon resale certificate validation.
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