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| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £4.99 | 1 to 2 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 5 to 7 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 7 to 10 working days |
Product Number: 18977N
The WAI 18977N is a brand-new 12V 1.0kW starter motor. It is built to the Denso OSGR (Overrunning Sprag Gear Reduction) design, cross-referenced directly against Denso original-equipment numbers 128000-7760, 128000-7761 and 128000-7762, as well as Iseki reference 6281-100-005-00 and Massey Ferguson references 3757-882-M91 and 3757882M91.
The OSGR design positions the reduction gear set within the starter housing, keeping the unit compact whilst delivering efficient cranking torque — a layout well suited to the agricultural and plant machinery applications associated with these OE references. Clockwise rotation and a 15-tooth pinion are specified, both matching the original Denso geometry to ensure correct engagement with the ring gear.
Supplied as a complete, ready-to-fit unit in brand-new condition, the 18977N requires no core exchange and arrives ready for direct installation. Six OE cross-references are catalogued for this part; use the cross-referenced catalogue or ask Simon to confirm suitability against your machine's original part number before ordering.
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PartsForMachines is a premier e-commerce platform, founded in 2019 in Warwickshire, UK, specializing in aftermarket parts and services for construction, agriculture, and industrial machinery. We offer an extensive catalog of over 500,000 products. Standard delivery: 1–3 working days within UK mainland. We are proud to be an authorised distributor, giving customers extra confidence when purchasing genuine products from us. In addition, we provide a 30-day return policy for eligible items.
| Type | Starter Motor |
|---|---|
| Manufacturer | Denso |
| Design | OSGR |
| Voltage | 12V |
| Power | 1.0kW |
| Rotation | CW |
| Teeth | 15 |
| Condition | Brand New |
| Engine Parts | Product Number | Product Name | Recommended Units | Product Price |
|---|
Exploring the WAI Starter Motor and Alternator at Partsformachines.com Introduction: In the Plant and Agriculture sector, a starter motor and alternator are parts that ensure a machine runs smoothly. At Partsformachines.com we have partnered with WAI, a global manufacturer of auto and plant machinery parts to off...
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| Technical Specification | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PRODUCT NUMBER | 17793N | 30236N | 30403N | 32893N | 33217N | 17737N | S6004 | S6007 | S6039 | S6045 | S6046 | S6055 | S6055PR | S6061 | S6072 |
| Voltage | 12 | 12 | 12 | 24 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| Design | OSGR | PMGR | PMGR | OSGR | OSGR | OSGR | |||||||||
| Manufacturer | Denso | Denso | Denso | Denso | Denso | Denso | |||||||||
| Power | 1.2 | 1.5 | 1.6 | 4.5 | 2.7 | 1.2 | 2.0 | 2.2 | 1.6 | 1.0 | 1.4 | 1.8 | 1.8 | 1.3 | 1.4 |
| Rotation | CW | CCW | CW | CW | CW | CW | CW | CW | CW | CW | CW | CW | CW | CW | CW |
| Teeth | 9 | 13 | 9 | 12 | 11 | 9 | 9 | 9 | 9 | 9 | 9 | 12 | 12 | 9 | 9 |
A. Yes. The WAI 18977N is cross-referenced against all three Denso original-equipment numbers — 128000-7760, 128000-7761 and 128000-7762 — along with Iseki 6281-100-005-00 and Massey Ferguson 3757-882-M91 / 3757882M91, giving six OE references in total. To confirm the right fit for your machine, search our cross-referenced catalogue by OEM number or ask Simon.
A. The WAI 18977N carries Massey Ferguson references 3757-882-M91 and 3757882M91, and Iseki reference 6281-100-005-00, so it is catalogued as a direct replacement for those OE part numbers. Vehicle application data beyond these references is not published for this part. Search our cross-referenced catalogue by OEM number or machine model, or ask Simon — every fitment shown is backed by our Fit Guarantee.
A. It is a 12V, 1.0kW unit built to the Denso OSGR (Overrunning Sprag Gear Reduction) design, with clockwise rotation and a 15-tooth pinion. It is supplied brand new — no core exchange required.
A. OSGR stands for Overrunning Sprag Gear Reduction. It describes a design in which a planetary reduction gear set sits inside the starter housing, allowing a smaller, lighter motor to deliver the torque needed to crank the engine. The overrunning sprag clutch disengages the pinion once the engine fires, protecting the motor from being back-driven.
A. Yes — ask Simon, or WhatsApp our team on 07754 288583 with any questions about specifications, suitability, or compatibility.
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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