
The Cummins 4094998 is a genuine Cummins Alternator 24V 55A. G Service Power has this unit brand new and boxed, in stock in the UK at $330, shipped to the USA by UPS Express Saver, dispatched the next business day. Brand new, sold outright: no core charge. Call +44 7951 632187.

Actual unit photographs. Further photos and video on request.
| Part number (MPN) | 4094998 |
|---|---|
| Manufacturer | Cummins |
| Product | Alternator 24V 55A |
| Condition | New — genuine Cummins OEM, original packaging with factory labels |
| Component | Alternator (charging) |
| Output | 24 Volt · 55 Amp |
| Engine compatibility | Cummins KTA19 · QSK19 · KTA50 · QSK50 |
| Country of origin | India (OEM box label) |
| Location | UK — ships to the USA |
| Condition | Brand New |
| Availability | In stock — ships to the USA by UPS Express Saver, next business day |
| Price | $330 (US dollars), shipped from UK stock |
| Shipping to the USA | $35 by UPS Express Saver, 2–3 working days in transit |
| Returns | 14 days |
| Reference | GX-4094998 |
The Cummins 4094998 fits Cummins KTA19 / QSK19 and KTA50 / QSK50. Related part numbers: 4381503 (superseded by, Cummins), 4381503RX (remanufactured number, Cummins), 3631678 (supersedes, Cummins), 3634778 (supersedes, Cummins), LNP-66021638A (cross-reference, DB Electrical) and P4094998 (marked on the part, Cummins).
| Make | Model | Notes |
|---|---|---|
| Cummins | KTA19 / QSK19 | per Diesel Parts Direct and AMO Parts |
| Cummins | KTA50 / QSK50 | per Diesel Parts Direct and AMO Parts |
| Part number | Brand | Relation | Notes |
|---|---|---|---|
| 4381503 | Cummins | Superseded by | current Cummins number; Cummins parts catalogue: 3631678 / 3634778 → 4094998 → 4381503 (active) |
| 4381503RX | Cummins | Remanufactured number | Cummins ReCon exchange unit for the current number |
| 3631678 | Cummins | Supersedes | earlier Cummins number, superseded by 4094998 (Cummins parts catalogue) |
| 3634778 | Cummins | Supersedes | earlier Cummins number, superseded by 4094998 (Cummins parts catalogue) |
| LNP-66021638A | DB Electrical | Cross-reference | aftermarket replacement number |
| P4094998 | Cummins | Marked on the part | barcode on the unit label; label reads 'Manufactured for Cummins Ltd by Prestolite Electric' |
Internal regulator, 24 V 55 A, made for Cummins by Prestolite Electric. Fitment is the K19 / K50 family (KTA19, QSK19, KTA50, QSK50); NT855, KTA38, ISX and 6BT appear only in marketplace listing titles and are not confirmed. Check your existing alternator's label or engine serial number. Fitment and interchange data is compiled from manufacturer catalogues and cross-reference listings and can change at engine serial-number breaks. Quote your engine serial number and existing part number when you call and we will confirm before dispatch.
The Cummins Alternator 24V 55A — part number 4094998 is a genuine Cummins part, supplied at $330 by G Service Power. It is brand new, held in UK stock and shipped to the USA by UPS Express Saver, dispatched the next business day.
Genuine OEM Cummins alternator, part number 4094998, 24 volt 55 amp, brand new in its Cummins Genuine Parts box, available to ship to the USA for $330. Which number to quote: Cummins now lists 4094998 as superseded by 4381503, and the older numbers 3631678 and 3634778 roll into the same chain, so a parts book or dealer quote for any of them points to this alternator. Made for Cummins by Prestolite Electric: the label on the unit reads Part No. 4094998, Volts/Amps 24V 55A, Manufactured for Cummins Ltd by Prestolite Electric, and the box label reads 4094998, dated 29 December 2023 (see photos). Fitment: the K19 and K50 family, Cummins KTA19, QSK19, KTA50 and QSK50, per Cummins parts distributors. Some marketplace listings also claim NT855, KTA38, ISX or 6BT; no dealer source confirms those, so check the label on your old alternator or your engine serial number before ordering. What it does: belt-driven by the engine, it charges the 24 V batteries and carries the electrical load while the engine runs. Replace it when the charge light comes on, battery voltage drops under load, or the bearings or regulator fail. Why buy this one: a dealer ReCon exchange unit, Cummins 4381503RX, is listed by a US Cummins parts distributor at over $1,800 with a core to return. This is a new genuine unit for $330, sold outright with no core. Shipping to the USA is $35 by UPS Express Saver, 2–3 business days after dispatch. 14-day returns. Call or WhatsApp +44 7951 632187, or email info@gservicepower.com.
Compatibility: fits Cummins KTA19 / QSK19 and KTA50 / QSK50 — the full list of engines and interchangeable part numbers is on the . Confirm against your engine serial number before ordering, or call us and we will check it with you.
For sale from UK stock, shipped to the USA. Quote any of these references when you get in touch.
| Part number | 4094998 |
|---|