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Technical Specification
PRODUCT NUMBER 17793N30236N30403N32893N33217NS6004S6007S6039S6045S6046S6055S6055PRS6061S6072S6096
Voltage 121212241212121212121212121212
Design OSGRPMGRPMGROSGROSGR
Manufacturer DensoDensoDensoDensoDenso
Power 1.21.51.64.52.72.02.21.61.01.41.81.81.31.42.0
Rotation CWCCWCWCWCWCWCWCWCWCWCWCWCWCWCW
Teeth 91391211999991212999

Q 1. Which DENSO original-equipment numbers does the WAI 17737N replace?

A. The WAI 17737N is a direct replacement for DENSO 228000-6310 and DENSO 228000-6313 — the two OE references listed for this part. These are the only cross-references published for this motor; if you are matching by OE number, search our cross-referenced catalogue or ask Simon to confirm your reference is covered.

Q 2. Will this starter motor fit a Toyota Corolla?

A. Yes — fitment data confirms this motor is listed for the Toyota Corolla (1998–2002), which is the one Toyota application recorded for this part. To verify your specific engine variant and build date, use the selection widget or search by model, or ask Simon. Every fitment shown is backed by our Fit Guarantee.

Q 3. What are the key specifications of this starter motor?

A. The WAI 17737N runs on 12V and delivers 1.2kW of cranking power. It uses an OSGR (Over-running Starter Generator Reduction) design with a 9-tooth pinion and clockwise rotation. The Lester cross-index reference is 17737 and the unit is supplied brand new.

Q 4. Is this a new or remanufactured starter motor?

A. This is a brand-new unit. The WAI 17737N is not reconditioned or remanufactured — it is supplied new, built to match the original DENSO specification.

Q 5. What does OSGR mean, and why does it matter when choosing a replacement?

A. OSGR stands for Over-running Starter Generator Reduction. It is a compact, high-torque design in which an internal reduction gear multiplies motor torque before it reaches the pinion, allowing a smaller, lighter motor to crank the engine effectively. When replacing a starter, the design type must match the original — fitting a non-OSGR unit in place of an OSGR will result in incorrect dimensions and mounting. The WAI 17737N is the correct OSGR design for the applications listed.

Q 6. What does the Lester number 17737 mean for this part?

A. The Lester number (17737) is a widely used industry cross-index reference for starter motors and alternators. Factors and trade buyers often look up parts by Lester number rather than OE reference. The WAI 17737N corresponds to Lester 17737, which can help you cross-check across catalogues and confirm you have the correct replacement.

Q 7. 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.

Q 8. 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.

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