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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: 3872N
The WAI 3872N is a brand-new 24V starter motor. It is built to the Delco 50MT DD design, engineered as a direct replacement for Remy and Caterpillar original-equipment units across a range of heavy industrial and agricultural machines. With 26 verified OE cross-references spanning Remy and Caterpillar part numbers, this unit is a well-documented replacement for ageing or failed starters on demanding plant and dozer applications.
Constructed to the 50MT DD specification, the 3872N features a 12-tooth drive pinion and clockwise rotation, matching the geometry and engagement characteristics of the original Delco units it replaces. Being supplied brand new rather than remanufactured means there is no core charge and no uncertainty about prior service history — the motor arrives ready to fit straight from the box.
Fitment covers 8 Caterpillar agricultural and industrial applications, including the D7E, D8K (1974–1982), D9G (1969–1974), D9H (1974–1982), 583H, 583K, 594, and 594H — machines that operate in demanding site and field conditions where starter reliability is critical.
About PartsForMachines:
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 | Delco |
| Design | 50MT DD |
| Voltage | 24V |
| Rotation | CW |
| Teeth | 12 |
| 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...
Standard Delivery: £4.99
Delivery Estimate: 1 to 2 working days
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| Technical Specification | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PRODUCT NUMBER | 3510N | 4319N | S1009 | S1165S | S1170S | S1256S | S1262S | 3510N-PG | 4162N | 4525N | 6278N | 6356N | 6360N | 6370N | 6571N |
| Voltage | 12 | 12 | 24 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 24 | 12 | 24 | 24 | 12 |
| Design | 10MT DD | DD | PG260M PMGR | 10MT DD | 10MT DD | 37MT Series | 42MT DD | 42MT DD | 42MT DD | 28MT OSGR | |||||
| Manufacturer | Delco | Delco | Delco | Delco | Delco | Delco | Delco | Delco | Delco | Delco | |||||
| Power | 1.5 | 9.0 | 0.8 | 1.8 | 2.0 | 1.8 | 1.4 | 1.4 | 7.8 | ||||||
| Rotation | CW | CW | CW | CCW | CW | CW | CW | CW | CW | CW | CW | CW | CW | CW | CW |
| Teeth | 9 | 10 | 11 | 8 | 9 | 11 | 11 | 11 | 9 | 10 | 10 | 11 | 12 | 11 | 12 |
A. The WAI 3872N fits 8 Caterpillar agricultural and industrial applications, including the 583H, 583K, 594, 594H, D7E, D8K, D9G, and D9H — covering production years from 1969 through to 1985. Use the selection widget to match your exact machine model and serial range, or search our cross-referenced catalogue by model. Every fitment shown is backed by our Fit Guarantee.
A. Yes. The WAI 3872N cross-references 13 Remy part numbers, including Remy 10478862, Remy 1109497, Remy 1109632, Remy 1109757, Remy 1109779, Remy 1109792, Remy 1109849, Remy 1109949, Remy 1990232, Remy 1990240, Remy 1990247, Remy 1993781, and Remy 63158. In total there are 26 verified OE references across Remy, Caterpillar, and AC Delco for this part.
A. The WAI 3872N replaces 11 Caterpillar original-equipment numbers including Caterpillar 0R5214, Caterpillar 1P9162, Caterpillar 1P9182, Caterpillar 374458, Caterpillar 3S4458, Caterpillar 3T2781, Caterpillar 3T3430, Caterpillar 3T8950, Caterpillar 7N8604, Caterpillar 8S9524, and Caterpillar 8S9542. Search our catalogue by any of these numbers to confirm the match.
A. It is a brand-new 24V unit built to the Delco 50MT DD design, with a 12-tooth drive pinion and clockwise (CW) rotation. Being brand new — not remanufactured — means no core charge and no prior service history to factor in.
A. The WAI 3872N is brand new. It is not a remanufactured or exchange unit, so there is no core return required and no need to factor in previous wear or service.
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.
A. Yes — ask Simon, or WhatsApp our team on 07754 288583 with any questions about specifications, suitability, or compatibility.
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