What Customers Send and What You Need
A maintenance planner or distributor typically sends a photo of a nameplate, a model number and a serial number, or just an old purchase order. Sometimes the unit is decades old and the serial is partially legible. To quote correctly you need the as-built bill of material for that serial: the impeller diameter actually installed, the seal arrangement, bearing frame, shaft material, gasket set and any field modification.
Without it, the counter person quotes the catalog standard and the customer receives parts that do not fit. Returns and expedited replacement then cost more than the margin on the original order.
Why As-Built Records Are Often Missing
Serialized as-built data exists only if the ERP captured it when the unit shipped. Many shops migrated systems years ago and left old serial records behind, or built products in earlier eras with only paper travelers. Others kept configuration data in an engineering folder rather than the ERP.
Typical gaps include impeller trims set at test but not recorded, field changes made by service, and part numbers that were later superseded. Recovering this knowledge is worth the effort: scan and index legacy travelers, backfill key fields for active families, and record any field changes at the time of service.
Superseded Parts, Kits and Interchangeability
Over a product's life, parts change. A seal is replaced by a newer design, a casting number is retired, a bearing supplier changes. The ERP should maintain supersession chains and interchangeability notes so a quote for an old part number returns the current one, with a flag when form, fit or function changed.
Kits help: pre-defined rebuild kits for a model and size, priced and stocked as a unit, reduce quote time and increase average order value. Track which parts are repeatedly quoted but not stocked, since those represent lost sales or long lead times.
- Supersession chain from old to current part number
- Interchangeability notes by serial range
- Rebuild kits by model, size and seal arrangement
- Stocking recommendations based on quote frequency
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Natural Language ERP Reporting Savings Calculator
Turn report volume, build time, and automation rate into the monthly hours and dollars saved by letting users ask ERP questions in plain English instead of building reports.
Faster Quoting With Natural-Language Lookup
A counter or inside-sales person can ask the system directly: show the as-built parts list for serial number X, what supersedes part Y, what is the current price and stock for this seal kit, and when will it ship. A natural-language layer over the ERP and engineering documents, running on your own servers, answers with source records and respects who is allowed to see pricing. It can also read a nameplate photo or an old PO and suggest matching records for a person to confirm.
Anything written back, such as a quote, still needs a person's approval.
When This Is Not Worth the Effort
If aftermarket is a small share of revenue, your products are simple and parts are cataloged by model with little variation by serial, a good catalog and a knowledgeable counter person may be enough. The work is justified when you have a large installed base, products with serial-specific variants, aftermarket revenue that is a meaningful share of the business, and a quote turnaround measured in days. Start with the top ten product families by installed base rather than trying to clean up the entire history.
Frequently asked questions
How can I identify parts for a pump when the serial number is unreadable?
Use the model number, the casting numbers on the casing, the impeller diameter measured on site and the shaft dimensions, then match them against drawings and past orders. Keep a lookup of casting numbers to families. If the unit was ordered through a distributor, the original purchase order is often the quickest route.
Should aftermarket parts be priced differently from OEM production?
Typically yes. Aftermarket parts carry higher margins because customers pay for availability, fit assurance and fast response, and volumes are small. Many manufacturers set separate price lists, with surcharges for obsolete or low-volume parts. Review pricing periodically against what competitors and non-OEM suppliers charge for the same parts.
What is a service kit and why does it help?
A service kit bundles the parts normally replaced at a given maintenance interval, for example gaskets, O-rings, seals and wear rings for a specific pump model and size, under one part number. It shortens quoting, reduces ordering errors, and encourages planned maintenance buying. Kits work best for high-installed-base models.
Netray can show a serial-number-to-parts-quote workflow running over your own ERP records and legacy documents, with a person approving every outbound quote.