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| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £4.99 | 1 to 2 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 5 to 7 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 7 to 10 working days |
Product Number: 13954N
The WAI 13954N is a brand-new 12V 120A alternator. It is built to replace Bosch original-equipment unit 0 124 515 088, as well as Valeo references 2542582B and SG12B062. Designed as an IR/IF (internal regulator, internal fan) unit with clockwise rotation and an SC7 single-claw pulley, it is engineered for direct fitment across Mercedes and Mercedes-Benz passenger car applications — 12 applications in total, spanning the C-Class, CLK, E-Class and SLK ranges from the early 2000s through to 2010.
The WAI brand is a specialist in rotating electrics, and the 13954N meets the same core performance parameters as the Bosch unit it replaces: 12-volt operating voltage and a 120-amp output rating. The IR/IF design means all regulation and cooling are handled internally, keeping the installation clean and straightforward. The SC7 pulley ensures correct belt engagement with the original drive system. Lester cross-reference numbers 11066 and 13954 provide an additional identification route for trade buyers sourcing by catalogue.
This alternator is supplied brand new — not remanufactured — and is categorised under Bosch design heritage, making it a reliable choice when an OE-quality replacement is required.
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| Type | Alternator |
|---|---|
| Voltage | 12V |
| Output | 120A |
| Rotation | CW |
| Design | IR/IF |
| Manufacturer | BOSCH |
| Pulley | SC7 |
| Lester | 11066, 13954 |
| Condition | Brand New |
| Engine Parts | Product Number | Product Name | Recommended Units | Product Price |
|---|
Exploring the WAI Starter Motor and Alternator at Partsformachines.com Introduction: In the Plant and Agriculture sector, a starter motor and alternator are parts that ensure a machine runs smoothly. At Partsformachines.com we have partnered with WAI, a global manufacturer of auto and plant machinery parts to off...
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| Technical Specification | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PRODUCT NUMBER | 12384N | 13381N-7G | 13625N | 13922N | 13998N | 20008N | 20803N | 21346N | 21480N | 21906N | 23344N | 23777N | 23914N | 11134N | 11234N |
| Voltage | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| Output Current | 150 | 90 | 120 | 140 | 180 | 180 | 90 | 140 | 200 | 120 | 150 | 140 | 125 | ||
| Design | IR/IF | IR/IF | IR/IF | IR/IF | IR/IF | IR/IF | IR/IF | IR/IF | IR/IF | IR/IF | IR/IF | IR/IF | IR/IF | ||
| Manufacturer | Bosch | Bosch | Bosch | Bosch | Bosch | Bosch | Bosch | Bosch | Bosch | Bosch | Bosch | Bosch | Bosch | Bosch | Bosch |
| Pulley | SC6 | S7 | S6 | SC6 | SC6 | SC6 | S6 | SC6 | S6 | S7 | SC6 | SC6 | S6 | ||
| Rotation | CW | CW | CW | CCW | CW | CW | CW | CW | CW | CW | CW | CW | |||
A. This alternator fits 12 Mercedes and Mercedes-Benz applications, including the C160 (2005–2008), C180 (2002–2004), C200 (2002–2008), CLK200 (2002–2006), E200 (2006–2010) and SLK200 (2004–2010), among others. Use the selection widget to match your exact make, model and engine variant, or search our cross-referenced catalogue by OEM number or model — every fitment is backed by our Fit Guarantee.
A. Yes. The WAI 13954N is a direct cross-reference replacement for Bosch OE number 0 124 515 088. It is also cross-referenced to Valeo 2542582B and Valeo SG12B062. If you are sourcing by OE number, you can search our catalogue by any of these references to confirm the match.
A. Yes — in addition to the Bosch reference, the 13954N cross-references to Valeo 2542582B and Valeo SG12B062. All three OE references are verified against manufacturer data.
A. The WAI 13954N is a 12V alternator rated at 120A output with clockwise (CW) rotation. It uses an IR/IF (internal regulator, internal fan) design, fitted with an SC7 single-claw pulley. Lester catalogue numbers are 11066 and 13954. It is supplied brand new.
A. IR/IF stands for Internal Regulator / Internal Fan. The voltage regulator is built into the alternator body rather than mounted externally, and the cooling fan is enclosed within the unit. This design is standard on modern alternators and means the replacement installs directly without the need to transfer or reconnect external regulator components.
A. The WAI 13954N is supplied brand new. It is not a remanufactured or reconditioned unit.
A. It uses an SC7 single-claw pulley, which is the correct specification to match the original belt drive arrangement on the Mercedes applications this unit serves.
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.
A. Yes. Every vehicle and OE cross-reference shown for this part is checked against manufacturer data and backed by our Fit Guarantee. If it is not right, our Fit Guarantee or hassle-free returns have you covered.
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