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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: 10940N
The WAI 10940N is a brand-new 12V 20A alternator. It is built to Kokusan Denki ER/EF specification, replacing Perkins original-equipment number 185046160 (also listed as 550185046160) and John Deere references CH15587 and MIA10312, as well as Kokusan Denki's own GP9150. It is a direct-fit replacement for John Deere 650 and John Deere 750 compact tractors (1981–1989 production).
Designed as a like-for-like replacement, the 10940N delivers a 20-amp output at 12 volts through a groove pulley drive — matching the original charging system specification without modification. Supplied brand new, it is ready to fit straight from the box with no reconditioning or core exchange required.
With five confirmed OE cross-references across Perkins, John Deere, and Kokusan Denki, this alternator is straightforward to verify against your existing part number or machine records. Buyers searching on GP9150 or Perkins 185046160 will find this the correct replacement.
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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 | Alternator |
|---|---|
| Manufacturer | Kokusan |
| Design | Denki ER/EF |
| Voltage | 12V |
| Output | 20A |
| Pulley | Groove Pulley |
| 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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Delivery Estimate: 1 to 2 working days
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| Technical Specification | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PRODUCT NUMBER | 14482N | 20539N | 21610N | 23853N | 21173N | 22155N | 23791N | 8440N | A4033 | A4058 | A4072 | A4084 | A4085 | A4103 | A9012 |
| Voltage | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| Output Current | 120 | 124 | 90 | 90 | 110 | 90 | 100 | 105 | 70 | 80 | 70 | 85 | 110 | ||
| Design | IR/IF | IR/IF | IR/IF | IR/IF | IR/IF | IR/IF | |||||||||
| Manufacturer | Marelli | Marelli | Electroprecizia | VISTEON | Marelli | Ford | Mando | Ford | |||||||
| Pulley | COUPLER | S6 | S6 | SC7 | S6 | AP | AP | AP | AP | AP | AP | ||||
| Rotation | CW | CW | CW | CW | |||||||||||
A. Yes — the WAI 10940N is the confirmed replacement for both Perkins OE references: 185046160 and 550185046160. It also crosses to John Deere CH15587 and MIA10312, and to the Kokusan Denki unit GP9150. All five references are verified against this part. To confirm fit by OE number or machine model, search our cross-referenced catalogue or ask Simon.
A. The 10940N fits the John Deere 650 (1981–1989) and John Deere 750 (1981–1988) — two applications in total. Use the selection widget to match your make, model, and engine variant, or search by OEM number. Every fitment shown is backed by our Fit Guarantee.
A. Yes. KOKUSANDEN GP9150 is one of the five OE cross-references confirmed for this part, meaning the WAI 10940N is the direct replacement for that Kokusan Denki unit. If GP9150 is the number on your existing alternator or parts record, this is the correct replacement.
A. The 10940N is a 12-volt alternator with a 20-amp output, driven via a groove pulley. It is built to Kokusan Denki ER/EF design specification and supplied brand new — no reconditioning or core return is required.
A. No modification is required. The 10940N is a like-for-like replacement matching the original Kokusan Denki ER/EF design, groove pulley included, so it fits directly in place of the OE unit on the confirmed John Deere applications.
A. There are five confirmed OE references for the 10940N: Perkins 185046160, Perkins 550185046160, John Deere CH15587, John Deere MIA10312, and KOKUSANDEN GP9150. You can search any of these numbers in our cross-referenced catalogue to verify fit, or ask Simon if you need further confirmation.
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.
A. Yes — ask Simon, or WhatsApp our team on 07754 288583 with any questions about specifications, suitability, or compatibility.
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