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SKU:
NLT2T04279
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Caterpillar 3304 Turbocharger 4N6859 – D4E 930 950 518 Skidder
$624.89
In Stock
$624.89
Sale price
$624.89
Regular price
This turbocharger replaces Caterpillar 4N6859 on 3304-engine applications including D4E, 930, 950 and 518 skidder equipment.
Estimated delivery between
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
| Make / Family | Applications |
|---|---|
| Caterpillar | D4E, 930, 950, 518 skidder and related 3304-powered applications using turbo 4N6859 |
Product Overview
The turbo uses exhaust energy to increase intake-air mass and engine power. Bearing wear, wheel damage or oil-seal failure can cause low boost, smoke, oil consumption, abnormal noise or a noticeable loss of power under load.
Cross-reference listings consistently tie 4N6859 / 4N-6859 to Caterpillar 3304 applications in the D4E, 930, 950 and 518 machine families. Before installation, inspect oil supply/return lines, air filtration and exhaust restrictions because those conditions can quickly damage a replacement turbo.
Key Features & Performance
- Replacement turbocharger for Caterpillar 3304 applications
- Cross-reference to 4N6859 / 4N-6859
- Restores boost airflow when the original turbo center section or wheels are worn/damaged
Technical Details
- Engine: Caterpillar 3304
- Component type: exhaust-driven turbocharger
- Service checks: oil supply/return, intake filtration and exhaust restriction
Replaces Part Numbers
- 4N6859
- 4N-6859
Frequently Asked Questions
Q: Should a replacement turbo be pre-lubricated?
A: Follow the turbo/engine installation procedure and ensure oil supply is established before sustained operation.
Q: What commonly causes repeat turbo failure?
A: Oil starvation/contamination, blocked drain lines, dirty air intake and excessive exhaust restriction are common causes.
Verify engine/turbo number and correct any lubrication or air-system cause of the original failure.