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Technical Specification
PRODUCT NUMBER 17793N30236N30403N32893N33217N17737NS6004S6007S6039S6045S6046S6055S6055PRS6061S6072
Voltage 121212241212121212121212121212
Design OSGRPMGRPMGROSGROSGROSGR
Manufacturer DensoDensoDensoDensoDensoDenso
Power 1.21.51.64.52.71.22.02.21.61.01.41.81.81.31.4
Rotation CWCCWCWCWCWCWCWCWCWCWCWCWCWCWCW
Teeth 91391211999999121299

Q 1. Which Toyota models does this starter motor fit?

A. The WAI 16790N covers 69 Toyota applications, including the Toyota 2SG-7, 3FG-33, 3FG-35, 3FG-40, 3FG-45, 3FG-50, 3FG-60 and 3FGC-10, among others. Use the selection widget on this listing to match your exact model, or search our cross-referenced catalogue by machine model or OEM number. Every fitment shown is backed by our Fit Guarantee.

Q 2. Does this replace the Denso 028000-4510, 028000-4511 or 028000-4512?

A. Yes. The WAI 16790N cross-references to Denso 028000-4510, Denso 028000-4511 and Denso 028000-4512, along with Denso 028000-7550, Denso 028000-9270, Denso 128000-0620, Denso 128000-0621, Denso 128000-0622, Denso 128000-0623, Denso 128000-1250, Denso 128000-1251, Denso 128000-1252 and further Denso references — 18 Denso numbers in total. Search our catalogue by any of these numbers to confirm fit.

Q 3. Will this starter motor replace Bosch or Delco Remy part numbers?

A. Yes. This unit cross-references to Bosch Exchange 0986014451, Bosch USA SR112N, Bosch USA SR112X, Bosch USA SR3235N and Bosch USA SR3235X, as well as Delco Remy DRS3258 and Delco Remy DRS3389, among a total of 94 OE and aftermarket cross-references. If you are working from a Bosch or Delco Remy number on the old unit, search our catalogue by that number to verify the match.

Q 4. What are the key electrical and mechanical specifications of this starter motor?

A. The WAI 16790N operates at 12V with a 1.4kW power output. It is an OSGR (Off-Set Gear Reduction) design with a 9-tooth pinion and clockwise rotation. It is supplied brand new — not remanufactured.

Q 5. What does OSGR mean and why does it matter when replacing a starter motor?

A. OSGR stands for Off-Set Gear Reduction. In this design, a planetary gear set reduces the motor's rotational speed before it reaches the drive pinion, which increases torque output and reduces mechanical stress on the flywheel ring gear during engagement. When replacing a starter motor it is important to match the design type — OSGR must replace OSGR — and this unit replicates the original Denso specification precisely.

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. 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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