# Oil pump Cummins 3966840 – used

> Cummins oil pump 3966840, used, available. A key component of the lubrication system in internal combustion engines.

- Category: [lubrication system](https://wibako.com/shop/diesel-engines-parts/lubrication-system.md)
- Manufacturer: Cummins
- Part number: 3966840
- Stock number: 71836
- Condition: used
- Price: on request
- Availability: in stock

Oil pump Cummins – used. Fits: Engine Cummins 6CTA8.3, Engine Cummins QSC8.3, Engine Cummins QSL8.9 and others.

## Specification

- name: Oil pump
- mark: Cummins
- part number: 3966840
- condition: used
- brand: Cummins
- category: Internal Combustion Engines - Parts > Lubrication System
- availability: Available

## Description

Oil pump Cummins – used part offered by WIBAKO. Used part. Its actual condition is shown in the photos; on request we will send more photos or details.

Fits: Engine Cummins 6CTA8.3, Engine Cummins QSC8.3, Engine Cummins QSL8.9, Engine Cummins 8.3, Engine Cummins 6CT8.3, Engine Cummins QSL9, Engine Cummins ISL8.3, Engine Cummins ISC8.3.

Part number: 3966840. Reference and alternative numbers: 5449240, 3948072, 3991123, 1936-21C, 4983588, 091800C60001. To be sure the part fits, compare the number on the nameplate or in the catalogue – or send us an enquiry with the part number or the machine (engine) serial number and we will confirm the fit.

Weight: 3.05 kg. Shipping: dispatched no later than the next working day after the order.

We also carry out [diesel engine overhauls](https://wibako.com/services/overhauls-of-combustion-engines).

## Fits (machines and engines)

- Engine Cummins 6CTA8.3 CPL8211
- Engine Cummins QSC8.3
- Engine Cummins QSL8.9 DUMMY
- Engine Cummins 8.3
- Engine Cummins 6CT8.3
- Engine Cummins QSC8.3
- Engine Cummins QSL9
- Engine Cummins ISL8.3
- Engine Cummins ISC8.3
- Engine Cummins QSL8.9 CPL422
- Engine Cummins QSC8.3 CPL8627
- Engine Cummins QSC8.3 CPL8512

## Reference numbers

3966840, 5449240, 3948072, 3991123, 1936-21C, 4983588, 091800C60001

## Other items

- [Oil pump Cummins 5449240 – used](https://wibako.com/shop/diesel-engines-parts/lubrication-system/38231X71835-oil-pump-cummins-5449240.md)
- [Oil pump Cummins 3948072 – used](https://wibako.com/shop/diesel-engines-parts/lubrication-system/48066X71401-oil-pump-cummins-3948072.md)
- [Oil pump Cummins 3991123 – used](https://wibako.com/shop/diesel-engines-parts/lubrication-system/37656X64442-oil-pump-cummins-3991123.md) – 56.70 EUR
- [Oil pump Cummins 3991123 – used](https://wibako.com/shop/diesel-engines-parts/lubrication-system/37656X60033-oil-pump-cummins-3991123.md)
- [Oil pump Concentric 1936-21C – used](https://wibako.com/shop/diesel-engines-parts/lubrication-system/27009X52260-oil-pump-concentric-1936-21c.md) – 79.38 EUR
- [Oil pump Cummins 4983588 – used](https://wibako.com/shop/diesel-engines-parts/lubrication-system/23957X29340-oil-pump-cummins-4983588.md)

## Guides and case studies

- [Cummins QSC8.3 Engine Overhaul](https://wibako.com/about-us/news/219-cummins-qsc8-3-engine-overhaul.md)
- [Komatsu PC350LC With a Dead Engine. End of the Machine or a Major Repair?](https://wibako.com/about-us/video/840-komatsu-pc350lc-with-a-dead-engine-end-of-the-machine-or-a-major-repair.md)
- [Komatsu PC350LC with a dead engine. Replacement with a re-equipped Cummins QSC8.3](https://wibako.com/about-us/news/841-komatsu-pc350lc-with-a-dead-engine-replacement-with-a-re-equipped-cummins-qsc8-3.md)
- [Service and Repair of Cummins 6CTA8.3 Engine](https://wibako.com/about-us/service/536-service-and-repair-of-cummins-6cta8-3-engine.md)

![Photo: Oil pump Cummins 3966840](https://wibako.com/images/2110733_1739438777246_1000x1000.webp)

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Source: https://wibako.com/shop/diesel-engines-parts/lubrication-system/58164X71836-oil-pump-cummins-3966840
Contact: +48338704200, biuro@wibako.pl