Across four manufacturing accounts, eight keywords that each got fewer than 100 impressions in 90 days produced 26 conversions for $232, about $9 per conversion. Across all their keywords, the same accounts average $70 to $250 per conversion. Terms like these usually show up in keyword research tools as 0–10 searches a month, if they show up at all, so most manufacturing accounts never add them.
That gap between reported search volume and actual value is the central problem in manufacturing paid search. Further, distributors often bid in the same auctions, and many of the people who search for manufacturing products are the wrong buyers. This article covers how to find the low-volume searches that matter, how to build campaigns that serve on them, how to handle distributor overlap, and how to filter out the wrong users.
Who searches for manufactured products
Manufacturing purchases rarely have one buyer. Each role in the purchase searches differently:
- Engineers and designers search by specification and application. They know the material, tolerance, load rating, or certification they need and are looking for a supplier that meets it.
- Procurement and purchasing search by part number, product name, and supplier. They often have a specification or a bill of materials in hand and want pricing, lead time, or a second source.
- Maintenance and MRO buyers search by the part number or model of the item that failed. They want a replacement that fits, usually quickly.
- Fleet and operations buyers search by product plus the vehicle or machine it fits. They know the equipment and need the matching component.
Most manufacturing keyword lists are built around category terms such as "industrial shelving" or "metal fabrication." Category terms have the most reported search volume, but none of the roles above typically type them at the point of purchase.
Five types of manufacturing searches
The following table shows the query types that produce most of the qualified demand in manufacturing accounts.
| Query type | What the buyer knows | Example search query |
|---|---|---|
| Part number or SKU | The exact item they need | ARKSPH170X |
| Fitment | The product and the vehicle or machine it fits | "[vehicle model] bulkhead divider" |
| Spec or application | The requirement, but not the supplier | "316 stainless fasteners for marine use" |
| Capability | The type of work, but not the vendor | "industrial welding company" |
| Competitor or cross-reference | A competing product they want to match or replace | "[competitor part number] equivalent" |
Fitment searches are the most distinctive pattern in manufacturing. Each fitment keyword gets very few searches, but a manufacturer with 40 products that fit 15 vehicle models can have over 600 of them.
Cross-reference searches are the least used. A buyer searching for a competitor's part number plus "equivalent" or "cross reference" has already specified the part and is actively looking for an alternative source.
Why a keyword with 20 searches a month can be your best term
The query carries the specification. A search for a part number or a product plus a vehicle model tells you what the buyer needs, what it fits, and that they're close to buying. A search for "industrial shelving" could come from a warehouse manager, a homeowner, a student, or a competitor. The specific query removes most of the qualification work that the category query leaves to your sales team.
Fewer advertisers bid on them. Category terms attract every manufacturer, distributor, and marketplace in the industry. Fitment and part number terms attract the few advertisers who have them in their keyword lists.
Keyword research tools undercount them. Keyword Planner reports volume in broad ranges, and third-party tools estimate volume from clickstream samples that rarely capture terms searched a few times a month. A keyword that a tool reports as 0–10 searches can still get 20 or 30 impressions a month in your account.
Don't use reported search volume as a filter when you build a manufacturing keyword list. Use it to estimate how much budget a keyword can absorb, not whether it belongs in the account.
How to build campaigns for part number and fitment searches
Build the keyword list from your catalog
Start with your product catalog or an ERP export instead of a keyword research tool. For each product line, list:
- Part numbers and SKUs, including common formatting variations (with and without dashes, with and without the manufacturer prefix).
- Every vehicle, machine, or system each product fits.
- Competitor part numbers you cross-reference to.
Combine products with fitments to generate fitment keywords. A spreadsheet with products in rows and fitments in columns produces the full list faster than any keyword tool.
Account for low search volume status
Google Ads assigns a Low search volume status to keywords with very little search history. Keywords with this status don't trigger ads until search activity increases. Many part number keywords will get this status as soon as you add them.
You can still reach those searches in three ways:
- Phrase match on the root. A phrase match keyword for a product family or a part number prefix can match the individual part numbers that won't serve as exact match keywords.
- AI Max for Search campaigns. With search term matching and final URL expansion turned on, AI Max can match searches to your product pages based on their content. If your catalog pages include part numbers and fitment details, Google can match queries to them without a keyword for each one. Use URL exclusions to keep traffic away from pages that don't convert, such as careers, blog, and investor pages.
- Search term mining. Review the search terms report weekly. When a part number or fitment query converts, add it as a keyword so you can control its bid and ad copy.
Group by product line, not by SKU
A campaign or ad group for each SKU splits a small amount of data across hundreds of units, and none of them get enough conversions for automated bidding to work. Group keywords by product line, and use the landing page to handle specificity.
Send each query to the most specific page
A search for a specific part number should land on that part's page, not on a category page or the homepage. The buyer has already narrowed down to one item, and a category page makes them repeat the search on your site. Use the landing page URL at the keyword level for high-value part numbers, and let AI Max final URL expansion cover the rest.
Watch for near-miss matches
Exact and phrase match keywords can match queries that Google considers close variants. For part numbers, a close variant can be a different part that differs by one or two characters. Check the search terms report for part numbers that aren't yours or that belong to a different product line, and add them as negative keywords.
Distributor channel conflict
You're bidding against your own sales channel
Distributors are separate advertisers, so their ads can appear alongside yours for your brand name, product names, and part numbers. Every additional bidder in an auction raises cost per click for everyone in it.
To see how much overlap you have, open Auction Insights for each non-brand campaign and look for known distributors. A distributor with a high overlap rate on your non-brand terms means part of your budget is spent competing with a partner who sells the same product.
Decide which product lines you sell direct
Decide this before you change any campaigns. It's a business decision, and the campaign structure follows from it. A common split:
- Direct: custom and engineered-to-order work, OEM and volume contracts, and national accounts.
- Channel: stock items, replacement parts, small quantities, and products that need local installation or same-day availability.
The split determines which searches you compete for and which you leave to distributors.
Assign keyword ownership by intent
After you set the product-line split, divide queries by what the buyer is trying to do:
- You own specification, application, capability, and engineering queries, where the buyer is still choosing a solution and a direct conversation adds value.
- The channel owns transactional queries on channel product lines: part numbers combined with "buy," "price," "in stock," or "near me," where the buyer has already chosen and wants to purchase.
Enforce the split with shared negative keyword lists in your campaigns. An informal agreement with distributors doesn't stop your campaigns from matching their queries.
Put paid search terms in distributor agreements
Many manufacturers include paid search terms in their distributor or dealer agreements. These terms typically cover:
- Whether distributors can bid on your brand terms.
- Whether distributors can use your trademarks in ad text.
- Whether distributors can target territories they don't serve.
Google's trademark policy lets you file a complaint that restricts use of your trademark in ad text, and then authorize specific advertisers, such as approved distributors, to use it. If you run a co-op advertising or market development funds (MDF) program, you can make compliance with your paid search terms a condition of funding.
Use geography where territories are exclusive
If a distributor has an exclusive territory, exclude that territory from direct campaigns for channel product lines, or lower bids there. Run direct campaigns at full strength in territories without distributor coverage.
Give the click two paths
For product lines you sell both direct and through distributors, send paid traffic to a page with two clear options:
- Request a quote, for custom, volume, and OEM buyers.
- Find a distributor, for everyone else.
Track clicks on the distributor locator, but set that conversion action as secondary. If distributor-locator clicks count as primary conversions, automated bidding optimizes toward buyers you're sending to the channel.
Check an existing account for channel conflict
- In Auction Insights, check overlap with known distributors on non-brand campaigns.
- In the search terms report, look for distributor names and for transactional modifiers on channel product lines.
- In conversion settings, confirm that distributor-locator clicks aren't primary conversions.
Filter for fit before the click
Manufacturing searches attract many people who can't buy from you: consumers, students, job seekers, and buyers who need one unit when your minimum is 500. Filter them before they click, where possible.
- State limits in ad copy. Include minimum order quantities, lead times, or the industries you serve. A headline such as "Custom fabrication, 100-unit minimum" costs you some clicks and saves you more in unqualified leads.
- Screen on the quote form. Ask for quantity, application, and material or specification. These fields qualify the lead and give your sales team what they need for the first call.
- Add negative themes by buyer type. Common themes for manufacturing accounts:
- Retail and DIY: "home depot," "lowes," "diy," "for home."
- Jobs: "jobs," "careers," "salary," "hiring."
- Education: "pdf," "diagram," "definition," "how does."
- Used equipment: "used," "salvage," "surplus," unless you sell refurbished products.
For the full approach to ad copy, form fields, negative keywords, and bidding goals in any B2B account, see Google Ads B2B lead generation.
Judge results on your sales cycle, not the first month
A quote request in manufacturing can take weeks to become a purchase order, and months for engineered-to-order work. During the first 60 to 90 days of a campaign, your cost per conversion reflects form fills, not revenue, and the revenue those form fills produce hasn't closed yet.
Set a review date based on your quote-to-order timeline before you launch, and set your budget so the campaign can run until that date without cuts. For why cost per acquisition looks worse early in long sales cycles and how to account for it, see the Attribution Debt framework.
Checklist: audit a manufacturing Google Ads account
- Part number, fitment, and cross-reference keywords are in the account, not only category terms.
- Keywords with Low search volume status are covered by phrase match roots or AI Max for Search.
- Campaigns are grouped by product line, not by SKU.
- Part number queries land on product pages, not category pages or the homepage.
- The search terms report is reviewed weekly for converting queries and near-miss part numbers.
- Auction Insights shows known levels of distributor overlap, and the overlap is intentional.
- Transactional queries on channel product lines are excluded with negative keywords.
- Distributor-locator clicks are secondary conversions.
- Ad copy states minimums or capability limits.
- The quote form asks for quantity and application.
Frequently asked questions
Is PPC worth it for manufacturers?
It depends on whether your buyers search for what you make. If engineers, procurement teams, or maintenance buyers search for your part numbers, product types, or capabilities, paid search reaches them when they're actively looking for a supplier. It works best when you target specific, low-volume searches instead of broad category terms, and when you judge results on your quote-to-order timeline instead of the first month's cost per lead.
What keywords should manufacturers target in Google Ads?
Start with the searches that carry a specification: part numbers, fitment searches (a product plus the vehicle or machine it fits), specification and application searches, capability searches, and competitor cross-reference searches. Build the list from your product catalog, not from a keyword research tool, because tools undercount low-volume terms.
Why do my part number keywords show "Low search volume"?
Google Ads assigns the Low search volume status to keywords with very little search history, and those keywords don't trigger ads until activity increases. To reach those searches anyway, use phrase match on the part number root or product family, turn on AI Max for Search so Google can match queries to your product pages, and add converting part numbers from the search terms report as keywords.
Should manufacturers bid on their own brand name?
Usually, yes. Brand clicks are inexpensive, and if you don't bid on your brand, distributors, marketplaces, and competitors can take the top ad position for searches that already name you. If your distributor agreements restrict brand bidding and Auction Insights shows little competition on your brand terms, you can test pausing brand campaigns and measure whether total leads from brand searches drop.
How do I stop distributors from bidding on my brand and part numbers?
Google Ads doesn't stop other advertisers from bidding on your brand terms, so the control comes from your distributor agreements. Add paid search terms that cover brand bidding, trademark use in ad text, and territory targeting. Google's trademark policy lets you restrict use of your trademark in ad text and then authorize approved distributors to use it. If you fund distributor advertising through co-op or MDF programs, make compliance a condition of funding.
How long does it take to see results from Google Ads in manufacturing?
Expect the first 60 to 90 days to show leads and quote requests, not revenue. Engineered-to-order and OEM work can take several months to move from quote to purchase order. Set your review date from your own quote-to-order timeline before launch, and budget so the campaign can run until that date.