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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: 21211N
The WAI 21211N is a brand-new 12V 100A alternator. It is built to the Delco 13SI design, replacing Remy 8600375 and Caterpillar original-equipment references 20R3598, 3218902, and CAT 321-8902. It is a direct OE-replacement unit for Caterpillar plant and agricultural machinery that originally carried a Delco 13SI charging system.
Constructed to the 13SI specification, the alternator delivers 100 amps of output at 12 volts with clockwise rotation, matching the electrical and mechanical envelope of the original Delco unit it replaces. Being supplied brand new — not remanufactured — means no core charge, no worn internals, and no uncertainty about service history.
The 13SI is a widely used Delco design across Caterpillar equipment, and the WAI 21211N is engineered to slot in as a direct replacement without modification.
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 | Alternator |
|---|---|
| Manufacturer | Delco |
| Design | 13SI |
| Voltage | 12V |
| Output | 100A |
| Rotation | CW |
| 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 | 8600310 | 7127-12R | A1029 | A1029PR | A1039 | 7127-SEN | 7127-SEN-100A1G | 7127-SEN-2G | 7256N | 7850N | 7853N-140A | 8030N | 8073N | 8718N | 12168N-DR |
| Voltage | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 24 | 12 | 12 | 12 | |
| Output Current | 63 | 100 | 100 | 140 | 63 | 100 | 63 | 90 | 100 | 140 | 70 | 130 | 160 | 160 | |
| Design | IR/EF | 10SI Series IR/EF | 10SI Series IR/EF | IR/EF | 30SI/TR Series IR/IF | 27SI/200 Series IR/EF | 15SI IR/EF | 21SI Series IR/EF | 22SI Series IR/EF | 24SI Series HP IR/IF | CS130D IR/IF | ||||
| Manufacturer | Delco | Delco | Delco | Delco | Delco | Delco | Delco | Delco | Delco | Delco | Delco | ||||
| Pulley | V1 | AFP | AFP | AFP | Groove Pulley | Groove Pulley | Groove Pulley | Without Pulley | Without Pulley | Groove Pulley | Without Pulley | Without Pulley | Without Pulley | Groove Pulley | |
| Rotation | CW | CW | CW | CW | CW | Bi-directional | CW | CW | CW | CW | CW | ||||
A. Yes. The WAI 21211N is cross-referenced to replace Remy 8600375 directly. It is verified against Remy OE data and backed by the Fit Guarantee. To confirm fitment for your specific machine, search our cross-referenced catalogue by OEM number or ask Simon.
A. The WAI 21211N replaces Caterpillar original-equipment references 20R3598 and 3218902, as well as CAT 321-8902. All four cross-references — including Remy 8600375 — are verified against manufacturer data. Search our catalogue by any of these OEM numbers, or ask Simon if you need to confirm fit for your machine.
A. This is a brand-new 12V, 100A alternator built to the Delco 13SI design with clockwise rotation. It is supplied new — not remanufactured — so there is no core charge and no worn internals to contend with.
A. It is brand new. The WAI 21211N is not a remanufactured or reconditioned unit — it is supplied as new old stock with no service history and no core charge requirement.
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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