# Crankcase breather line Caterpillar 3479981 – used

> Discover the essential engine breather hose 3479981, designed for effective exhaust and gas management in heavy machinery. Made from durable nylon, this reliable component ensures safe fluid conduction and includes fittings and a clamp for easy installation. Enhance your equipment's efficiency and safety with this high-quality part.

- Category: [lubrication system](https://wibako.com/shop/diesel-engines-parts/lubrication-system.md)
- Manufacturer: Caterpillar
- Part number: 3479981
- Stock number: 70509
- Condition: used
- Price: 56.01 EUR gross (45.54 EUR net)
- Availability: in stock

Crankcase breather line Caterpillar – used. Fits: Engine Caterpillar C4.4.

## Specification

- name: Crankcase breather line
- mark: Caterpillar
- part number: 3479981
- condition: used
- total length: 340.1 mm
- height: 50 mm
- width: 89.9 mm
- material: Nylon
- includes: Tube, fittings, clamp
- pressure rating: Specified pressure
- exhaust emission control: Yes

## Description

Crankcase breather line for the Caterpillar C4.4 engine, part number 3479981 (also 347-9981), weight 0.07 kg. The line carries gases from the crankcase to the intake system, so pressure does not build up in the crankcase. It is a flexible, ribbed black plastic hose with a gently curved shape, fitted with a clamp at one end and a connection fitting at the other. Used part. Before ordering, compare the number as well as the shape and length of the line with the part on your engine.

Fits: Engine Caterpillar C4.4.

Part number: 3479981. Reference and alternative numbers: 347-9981. 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: 0.07 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 Caterpillar C4.4
- Engine Caterpillar C4.4 C7N
- Engine Caterpillar C4.4 W7N

## Reference numbers

3479981, 347-9981

## Other items

- [Crankcase breather line Caterpillar 3479981 – used](https://wibako.com/shop/diesel-engines-parts/lubrication-system/52627X64293-crankcase-breather-line-caterpillar-3479981.md)

![Photo: Crankcase breather line Caterpillar 3479981](https://wibako.com/images/2101035_1734446157824_1000x1000.webp)

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Source: https://wibako.com/shop/diesel-engines-parts/lubrication-system/52627X70509-crankcase-breather-line-caterpillar-3479981
Contact: +48338704200, biuro@wibako.pl