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WAI 31644N 12V Starter Motor HITACHI

WAI 31644N 12V Starter Motor HITACHI

£108.13 £106.01
2% OFF
AS-PL S2007 12V 2kW Starter Motor HITACHI Type

AS-PL S2007 12V 2kW Starter Motor HITACHI Type

£103.02 £101.00
2% OFF
Technical Specification
PRODUCT NUMBER 18279N17927N18328N31644NS2001S2003S2005S2007S2008S2019S2027S2031S2041S2043S2044
Voltage 121212121224121224121212121212
Design PMGRPMGRPMGR
Manufacturer HitachiHitachiHitachiHitachi
Power 1.41.71.41.43.52.52.04.00.91.40.82.32.32.5
Rotation CWCWCWCWCWCWCWCCWCWCWCCWCWCWCW
Teeth 91011139991181189915

Q 1. What does the WAI 18209N replace — which original Hitachi part numbers does it cross-reference?

A. The WAI 18209N replaces Hitachi original-equipment starter motors, with verified cross-references including Hitachi S114-303, Hitachi S114-303A, Hitachi S114303, and Hitachi S114303A. In total there are 14 OE cross-references on file for this part, also covering Bosch, Yanmar, Remy, Universal, DRI, Hella, and Unipoint numbers. Search our cross-referenced catalogue by your existing OE number to confirm fitment, or ask Simon if you are unsure.

Q 2. Does this starter motor replace the Yanmar 128170-77010?

A. Yes — YANMAR 128170-77010 and YANMAR 128170-77010D (also listed as Yanmar 12817077010 and Yanmar 12817077010D) are all included in the 14 verified cross-references for the WAI 18209N. Match your existing part number against the full reference list in the catalogue, or ask Simon to confirm.

Q 3. Is this the right replacement for a Bosch SR5052N or Remy RS41147 starter?

A. Yes — Bosch USA SR5052N and Remy RS41147 are both among the 14 OE cross-references verified for the WAI 18209N. If your machine currently carries either of those part numbers, the 18209N is the matched replacement. Use the cross-referenced catalogue to verify against your full OE number, and every fitment shown is backed by our Fit Guarantee.

Q 4. What are the key specifications of the WAI 18209N?

A. The 18209N is a direct-drive (DD) starter motor rated at 12V and 1.0kW, with clockwise (CW) rotation and a 9-tooth pinion. It is supplied brand new — not reconditioned or remanufactured — and is built to Hitachi design specification.

Q 5. What does 'DD' mean on a starter motor, and does it matter for fitment?

A. DD stands for direct-drive, meaning the starter pinion engages the ring gear directly rather than through a reduction gearset. This affects the physical design and mounting of the unit, so it is important to match like-for-like: the WAI 18209N should replace a DD-type starter only. Confirm by matching your original OE part number against the 14 cross-references listed, or ask Simon.

Q 6. Is this starter motor brand new or reconditioned?

A. The WAI 18209N is supplied brand new. It is not a remanufactured or reconditioned unit.

Q 7. Can I ask questions about this starter motor before I order?

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

Q 8. Is this part covered by your Fit Guarantee?

A. Yes. Every OE cross-reference shown for the WAI 18209N 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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