SHIRE / Relays & controllers
Automotive relays for wholesale: compare function, voltage and terminals
Compare three 24V catalog relay records with different functions and pin counts. Prepare a line-by-line bulk RFQ without treating them as substitutes.
A request for a 24V automotive relay still leaves the part unidentified. SAP-S124 is a headlamp-relay record with 8P, SAP-S150 a wiper-relay record with 7P, and SAP-S155 a wiper-relay record with 6P. All three have 24V catalog notes. Voltage narrows the discussion; it does not make their functions or connections equivalent.
Use the complete record
S124 lists 1504270 and 1401788. S150 lists 1387022, 1475750 and 1543806. S155 lists 1523612 and 1741091. Keep the complete original reference beside the proposed SKU and relay function. Do not merge those OE lists into a general Scania relay entry. The table below gives catalog references, not a replacement approval.
Pin count does not supply a circuit diagram
Ask for the terminal identification and relevant specification for the exact proposed unit. A 6P or 7P description says nothing by itself about which terminal does what, contact rating or control logic. Confirm these with the supplier and qualified technical personnel; this guide does not provide wiring instructions or guessed pin assignments.
Make different offers comparable
Use one quotation line per required reference, with quantity, candidate SKU, confirmed function and voltage. Ask for front/rear and marking photos where identification remains open. Record sample requirements and packaging separately. An offer that only says 24V relay has not answered a version-specific inquiry.
Carry the approval into the repeat order
Retain the accepted sample or specification reference and require proposed changes to be listed before shipment. Ask for updated availability, price and lead time for the actual quantity. The linked products are procurement examples, not a claim of stock or universal fitment.
Purchasing guidance, not installation or diagnostic instructions. Confirm compatibility and specifications with the supplier and a qualified technician.
Catalog examples — not confirmed substitutes
SAP-S124
Headlamp relay
OE references: 1504270 / 1401788
Catalog specifications ↗
SAP-S150
Wiper relay
OE references: 1387022 / 1475750 / 1543806
Catalog specifications ↗
SAP-S155
Wiper relay
OE references: 1523612 / 1741091
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 note: this purchasing guide was prepared with AI assistance using the supplied catalog and document-coordination scenarios. It is not a product test, technical approval or a promise of SHIRE order terms.
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