Phone Phone 01926754100 Cart Cart
Fit guarantee icon
FIT GUARANTEE or Hassle-Free Returns
Quick delivery icon
QUICK DELIVERY On All Products Across UK
Customer support icon
GREAT SUPPORT 24/7 Support For Any Query
rating icon
TOP RATED Trusted by Our Customers
  • Ratings Standard Delivery: £4.99
  • Delivery Delivery Estimate: 1 to 2 working days
  • Save Extra Save Extra With 1 Offer
  • Ratings Compare With Similar Items
  • Use promo code "RMPK1" to get Additional 1% OFF
Compare with Similar products
WAI 17793N 12V 1.2kW Starter Motor DENSO OSGR

WAI 17793N 12V 1.2kW Starter Motor DENSO OSGR

£117.74 £115.43
2% OFF
WAI 32893N 24V 4.5kW Starter Motor DENSO OSGR

WAI 32893N 24V 4.5kW Starter Motor DENSO OSGR

£136.97 £134.28
2% OFF
WAI 33217N 12V 2.7kW Starter Motor DENSO OSGR

WAI 33217N 12V 2.7kW Starter Motor DENSO OSGR

£113.96 £111.73
2% OFF
WAI 17737N 12V 1.2kW Starter Motor DENSO OSGR

WAI 17737N 12V 1.2kW Starter Motor DENSO OSGR

£115.05 £112.79
2% OFF
AS-PL S6004 12V 2kW DENSO Type Starter Motor

AS-PL S6004 12V 2kW DENSO Type Starter Motor

£105.50 £103.43
2% OFF
AS-PL S6007 12V 2.2kW Starter Motor DENSO Type

AS-PL S6007 12V 2.2kW Starter Motor DENSO Type

£107.67 £105.56
2% OFF
AS-PL S6045 12V 1kW Starter Motor DENSO Type

AS-PL S6045 12V 1kW Starter Motor DENSO Type

£101.72 £99.73
2% OFF
AS-PL S6046 12V 1.4kW Starter Motor DENSO Type

AS-PL S6046 12V 1.4kW Starter Motor DENSO Type

£111.53 £109.34
2% OFF
AS-PL S6072 12V 1.4kW Starter Motor DENSO Type

AS-PL S6072 12V 1.4kW Starter Motor DENSO Type

£107.77 £105.66
2% OFF
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. Does this starter motor replace Denso 428000-3140 or New Holland 87040161?

A. Yes. The WAI 19855N is a direct replacement for Denso references 428000-3140 and 4280003140, as well as New Holland OE number 87040161. These are the only cross-references published for this part. To search by OEM number or confirm suitability for your machine, use the selection widget or search our cross-referenced catalogue — every match is backed by our Fit Guarantee.

Q 2. Which Case and New Holland machines does this starter motor fit?

A. The 19855N covers 17 applications across Case (12 models) and New Holland Industrial (5 models). Confirmed Case fitments include the 420, 420CT, 430, 435, 440, 440CT, 445 and 445CT (build years 2004–2012). Use the selection widget on this page to match your exact model and year, or search by OEM number to confirm fit. All fitments shown are backed by our Fit Guarantee.

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

A. The WAI 19855N is a 12V, 2.7kW starter motor in Denso OSGR (Off-Set Gear Reduction) design. It has a 10-tooth drive pinion and clockwise rotation. It is supplied brand new — no core exchange is required.

Q 4. What does OSGR mean, and why does it matter for my machine?

A. OSGR stands for Off-Set Gear Reduction. This design uses an internal gear set to multiply torque from a smaller, faster-spinning motor, producing strong cranking force in a compact unit. It is the design used in the original Denso starter fitted to the supported Case and New Holland Industrial equipment, so the 19855N is a like-for-like replacement.

Q 5. Is this starter motor supplied new, or is it a remanufactured unit?

A. The WAI 19855N is supplied brand new. It is not remanufactured or reconditioned, so there is no core charge and no old unit to return.

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. Can I ask questions about this product before ordering?

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

Get exclusive updates on offers & latest trends in construction industry

By sharing your email, you agree to our privacy policy & terms of service