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Technical Specification
PRODUCT NUMBER 12384N13381N-7G13625N13922N13998N20008N20803N21346N21480N21906N23344N23914N11134N11234N11305N
Voltage 121212121212121212121212121212
Output Current 1509012014018018090140200150140125220
Design IR/IFIR/IFIR/IFIR/IFIR/IFIR/IFIR/IFIR/IFIR/IFIR/IFIR/IFIR/IFIR/IF
Manufacturer BoschBoschBoschBoschBoschBoschBoschBoschBoschBoschBoschBoschBoschBoschBosch
Pulley SC6S7S6SC6SC6SC6S6SC6S6SC6SC6S6Groove Pulley
Rotation CWCWCWCCWCWCWCWCWCWCWCWCW

Q 1. Which Bosch OE alternator numbers does the WAI 23777N replace?

A. The WAI 23777N replaces Bosch original-equipment alternators under the following references: 0 124 425 039, 0 124 425 069, 0 124 425 106, and 0 124 425 107 — all four Bosch references listed for this part are covered. Use the selection widget or search our cross-referenced catalogue by OEM number to confirm fitment for your application, and check the Fit Guarantee applies to your vehicle.

Q 2. What vehicle does the WAI 23777N fit?

A. Based on the fitment data published for this part, it is confirmed for the Renault Clio III (2005–2010), covering 1 Renault application in total. To verify the exact engine variant and build date for your vehicle, use the selection widget on this listing or search by model and engine. Every fitment shown is backed by our Fit Guarantee.

Q 3. Is this a brand-new alternator or a remanufactured exchange unit?

A. The WAI 23777N is supplied brand new — it is not a remanufactured or reconditioned exchange part. There is no core charge and no used-unit return required.

Q 4. What does the IR/IF design mean, and does it need an external regulator?

A. IR/IF stands for internal regulator, internal fan. The voltage regulator is built into the alternator body, so no separate external regulator is needed and no additional wiring is required beyond the standard OE harness connections.

Q 5. What pulley type does this alternator use, and will it fit my existing drive belt?

A. The WAI 23777N uses an S7 pulley and clockwise (CW) rotation, matching the OE Bosch specification. This ensures direct compatibility with the existing drive belt and tensioner arrangement on confirmed applications without modification.

Q 6. How do I confirm this part fits my vehicle or machine?

A. Use the selection widget to match your make, model and engine, or search our cross-referenced catalogue by OEM number, machine model or equivalent part across brands. If your vehicle is not listed, ask Simon. Every fitment shown is backed by our Fit Guarantee.

Q 7. Can I ask questions about this product before ordering?

A. Yes — ask Simon, or WhatsApp our team on 07754 288583 with any questions about specifications, suitability, or compatibility.

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