SHIRE / Heating control valves
What to ask when a heater-valve catalog line has no specification note
Blank catalog fields should become named questions, not invented specifications.
The current entries for SAP-D300, SAP-D303, SAP-S301 and SAP-S303 contain OE and application information but no remark in the specification field. Blank means the supplied catalog did not state it. It does not mean universal, standard, identical or specification-free.
Turn the blank into a short data request
Ask for the proposed part’s hose-port arrangement, mounting views, actuator and electrical connector details, overall dimensions and readable markings where relevant. Request a drawing or measured photograph when dimensions affect the decision. Do not derive voltage, diameter, material or pressure rating from the catalog picture.
Keep DAF and SCANIA requests on their own lines
D300 and D303 are DAF catalog records with different OE lists; S301 and S303 are SCANIA records with their own OE references. Brand text is a catalog application label, not evidence that every vehicle or year is covered. Preserve the original requested OE and the candidate SKU separately.
Make “to confirm” visible in the quotation
List each missing point in a dedicated pending column. The supplier can then answer, attach evidence or leave it unresolved. A blank copied forward through quotation, PI and order looks like agreement when it is only missing data; a named open question is much harder to overlook.
Purchasing guidance, not installation or diagnostic instructions. Confirm compatibility and specifications with the supplier and a qualified technician.
Catalog examples — not confirmed substitutes
SAP-D300
Heater control valve
OE references: 2233032 / 1605827 / 5001833356
Catalog specifications ↗
SAP-D303
Heater control valve
OE references: 1450740
Catalog specifications ↗
SAP-S301
Heater control valve
OE references: 1787393
Catalog specifications ↗
SAP-S303
Heater control valve
OE references: 1868457 / 1789068
Catalog specifications ↗Compare the actual catalog records
These are current catalog examples, not an approved substitution list. OE references and remarks below are reproduced from the supplied records; they do not establish compatibility, stock or electrical performance.
Editorial basis: this guide uses the current SHIRE catalog records shown above. AI assisted the multilingual wording; model, OE and catalog-note fields were checked against the supplied records. No physical product test was performed.
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