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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: 21212N
The WAI 21212N is a brand-new 24V 85A alternator. It is built to the Delco 13SI IR/IF design, replacing Remy 8600366 and Caterpillar original-equipment references 3218932 and 321-8932. It is a direct-fit replacement for Caterpillar plant and agricultural machinery applications that originally carried Delco 13SI charging equipment.
The 13SI IR/IF design — Internal Regulator, Internal Fan — is a well-established Delco architecture widely used across heavy plant, construction, and agricultural equipment. The WAI 21212N delivers 85 amps of output at 24 volts, matching the original specification precisely. Clockwise rotation (viewed from the drive end) is built into the unit, so no modification is required on standard Delco 13SI installations.
Supplied brand new, this unit requires no core return or refurbishment exchange. WAI manufacture to OE-equivalent standards, making the 21212N a dependable choice where the original Delco alternator needs 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 | Delco |
| Design | 13SI IR/IF |
| Voltage | 24V |
| Output | 85A |
| 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...
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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. The WAI 21212N replaces Remy 8600366 and Caterpillar original-equipment references 3218932 (also listed as CAT 321-8932). These are the three OE cross-references published for this part. To confirm fit against your machine's existing unit, search our cross-referenced catalogue by OEM number or ask Simon.
A. This alternator is listed in the Caterpillar alternator category and crosses directly to Caterpillar OE references 3218932 and 321-8932, indicating fitment on Caterpillar plant and agricultural machinery originally equipped with a Delco 13SI unit. Fitment data for specific model ranges is not published for this part. To confirm fit on your machine, search our cross-referenced catalogue by OEM number or machine model, or ask Simon — every confirmed fitment is covered by our Fit Guarantee.
A. The WAI 21212N is supplied brand new. There is no core exchange or refurbishment deposit required.
A. The WAI 21212N operates at 24 volts with an 85-amp output. It follows the Delco 13SI IR/IF design (Internal Regulator, Internal Fan) and turns clockwise when viewed from the drive end.
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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