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Technical Specification
PRODUCT NUMBER 12145N12163N12130N12148N22617N12159N12366N12224N12192N12140NA9374S
Voltage 12121224121212121212
Output Current 955555459555659055
Design IR/EFIR/EFIR/EFIR/EFIR/EFIR/EFIR/EFIR/IFIR/EF
Manufacturer BoschBoschMagnetonBoschLetrikaBoschMagnetonBoschDensoMagnetonLetrika
Pulley Without PulleyGroove PulleyGroove PulleyWithout PulleyGroove PulleyGroove PulleyWithout PulleyGroove PulleyGroove Pulley
Rotation CWCWCWBi-directionalCWCWCW

Q 1. Does this replace Bosch number 0 120 488 205 or 0120488205?

A. Yes. The WAI 12161N directly replaces Bosch 0 120 488 205 and 0120488205, along with a further 19 Bosch references in the cross-reference data for this part — including 0 120 488 285, 0 120 488 293, 0 120 489 475, 9 120 060 040, and others. In total there are 110 OE cross-references across all brands. Search our catalogue by any of these numbers to confirm, or use the selection widget to match by machine model. Every OE reference is backed by our Fit Guarantee.

Q 2. Will this alternator replace my Delco Remy or Iskra unit?

A. Yes — the WAI 12161N cross-references to Delco Remy DRA0019 and DRB0290, and to Iskra / Letricka tech 11201935 and 11204382. If your machine currently carries one of these units, this alternator is the confirmed replacement. Search by your existing reference number in our catalogue to verify, or ask Simon if you need further assistance.

Q 3. What machines does the WAI 12161N fit?

A. This alternator covers 194 confirmed applications across Case, John Deere, Thermo King, Ingersoll Rand, Bell, Atlas Copco, Caterpillar Ag. & Ind., and others. Specific models include the Case 1150H, Case 1835C, Atlas Copco XAS175, Bell 310SG, and Bell 315SG. Use the selection widget to match your exact make, model, and engine, or search by OEM number. Every fitment shown is backed by our Fit Guarantee.

Q 4. Which Case and John Deere models does this alternator cover?

A. Case accounts for 118 of the 194 confirmed applications, and John Deere for 50. Confirmed Case models include the 1150H, 1550, 1818, 1835B, and 1835C. Use the selection widget on this listing to filter by your specific Case or John Deere model and engine variant to confirm fitment before ordering.

Q 5. Is this alternator supplied with a pulley?

A. No — the WAI 12161N is supplied without a pulley. You will need to transfer the original pulley from the unit being replaced during installation. This is standard practice for this type of replacement alternator and keeps the charging circuit geometry consistent with the original Bosch IR/EF design.

Q 6. What is the rotation direction and output of this alternator?

A. The WAI 12161N produces 65 amps at 12 volts and rotates clockwise (CW). The IR/EF (internal regulator / external fan) design matches the original Bosch layout, ensuring compatibility with the existing wiring and charging circuits on the machines listed.

Q 7. 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 8. Is this part covered by your 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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