Spark plug manufacturers
Coordinate spark plug manufacturers questions against a cross-reference and batch-identifier checklist. Sparkroute Sourcing organizes supplier replies for manufacturing plants and trading exporters; it does not produce the plug.
Define the coordination scope
| Decision point | Buyer / supplier question |
|---|---|
| Requirements review | Buyer supplies vehicle year, make and model, engine code, OE reference for identification only, cylinder-position quantities and order unit. Also record thread diameter, reach, seat type, heat range, gap and electrode construction. Missing terminal style or resistor notes are treated as open questions, not defaults. |
| Supplier questions | Ask spark plug manufacturers for a drawing revision, heat-range designation with the manufacturer’s own coding convention, delivered-gap statement and a contents list that states boots or wires if bundled. Request a supplier declaration that names the exact plug reference, not a family brochure. Cross-reference tables must show the source used for any suggested match. |
| Quote comparison | Separate unit cost, packing unit, freight, taxes and service costs before comparing. A nickel piece and an iridium set cannot share one unit price. Minimum order quantity, sample approval cost and box piece counts stay visible so a USD per-piece budget is not mixed with a total-order figure. |
| Order handoff | Record the approved sample identifier, the batch check that will be repeated and each party’s delivery responsibility under the named Incoterms. Warranty scope is copied from the supplier document. Sparkroute Sourcing does not convert an approved sample into a claim that every later lot is already accepted. |
Use the spark plug gap quote review when delivered gap is priced separately. Continue on the request form when drawings still need to be collected.
What to send
Thread, reach, seat, heat range, gap, electrode material, quantity and destination for the spark plug manufacturers you want compared.