OEM / REF: 321-8928SKU: pilotpart426054
New 120A Alternator 321-8928 For Caterpillar TH408D TL1055D TL1255D TH337C is a Alternator replacement part indexed for CATERPILLAR TH366C and CATERPILLAR TL943D, with 3 application records on file. Match OEM part number 321-8928 and confirm fitment for Caterpillar Engine Spare Parts before ordering.
This Alternator is indexed for CATERPILLAR TH366C; CATERPILLAR TL943D; CATERPILLAR TH3510D; CATERPILLAR TH357D. Compare reference number 321-8928 against the label on your existing Caterpillar component before ordering.
Additional cross references on file: DELCO8600376. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.
| Unit Type | DELCO |
|---|---|
| Voltage | 12 |
| Amperage | 120 |
| Fan | INTERNAL |
| Regulator | INTERNAL |
| Grooves | 8 |
| Pulley Shaft Od | 0.669IN / 17MM |
| Shaft Threads | M16-1.5 |
| Mount Type | PAD |
| Mounting Ear 1 & 3 Hole | 10.6MM UNTHREADED |
| Mounting Ear 2 & 4 Hole | 12.6MM UNTHREADED |
| Mounting Ear Thickness | 3.15IN / 80MM |
| Part Number | 321-8928, 3218928, DELCO8600376 |
Match the OEM or reference number first, then verify machine model, engine model, serial number, connector layout, mounting points, and old part photos.
Yes. Send the old part number, machine plate, and photos through the fitment inquiry form. Support can review possible replacements or alternatives.
Products are indexed as replacement parts unless explicitly marked otherwise. Always compare reference numbers and confirm fitment before purchase.
