CAT 3E-9840 Diesel Engine Oil DEO 15W40 (208L)

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The Caterpillar 3E-9840 Diesel Engine Oil DEO 15W40 (208L drum) is a premium-quality heavy-duty lubricant specially formulated to meet the demanding requirements of Caterpillar diesel engines. Designed for both on-highway and off-highway equipment, this multi-grade oil ensures reliable performance, extended engine life, and reduced downtime in the toughest working environments.

 

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Description

Cat DEO is developed, tested and approved by Caterpillar to meet the same high standards as all Genuine Cat Parts. Cat® DEO can be used in diesel engines without aftertreatment devices.” The 3E-9840 ensures optimal performance and durability. Designed for efficiency and longevity. An essential component for optimal machine performance. This 3E-9840 Diesel Engine Oil DEO Caterpillar 15W40 (208L) by Caterpillar is built to last.

Key Features & Benefits

  • OEM-Approved by Caterpillar – Developed, tested, and approved to meet Cat’s strict performance standards.

  • Extended Drain Intervals – Provides oil change intervals of up to 500 hours when used under recommended conditions.

  • Reliable Protection – Prevents piston deposits, sludge, and wear for longer engine life.

  • Thermal Stability – Maintains viscosity in high-temperature operations, minimizing oil breakdown.

  • Versatile Applications – Suitable for construction, mining, marine, and power generation equipment.

  • Cost-Effective – Reduces downtime and maintenance costs with longer engine service life.

Technical Specifications

  • Product Number: 3E-9840
  • Viscosity Grade: SAE 15W40
  • Volume: 208 Liters (sealed drum)
  • Drain Interval: Up to 500 hours (under Cat guidelines)
  • Usage: Diesel engines without aftertreatment systems

Performance Standards & Approvals

The 3E-9840 Diesel Engine Oil DEO 15W40 meets or exceeds international quality levels and manufacturer requirements, including:

  • API Specifications: CI-4, CH-4, SL, CG-4, CF-4, CF
  • Caterpillar: ECF-2
  • ACEA: E7, A2
  • Volvo VDS-3
  • Mack EO-M Plus
  • MAN M 3275-1
  • Mercedes-Benz (MB) 228.3
  • Cummins CES: 20077, 20076, 20072, 20071
  • Renault Trucks RLD

Applications

The Cat® DEO 15W40 is engineered for a wide range of heavy-duty applications, including:

  • Construction Equipment – Excavators, bulldozers, loaders, graders

  • Mining & Quarry Equipment – Haul trucks, drills, shovels

  • Marine Engines – Reliable lubrication for continuous-duty operation

  • Power Generation – Diesel generator sets running under high load

Why Choose Genuine Cat® DEO 15W40?

Using genuine Caterpillar diesel engine oil ensures:

  • Maximum performance and reliability of Cat engines

  • Extended equipment life and reduced total cost of ownership

  • Proven compatibility with Caterpillar engines worldwide

Standards :API CI4 CAT ECF2

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Why Buy from Gulf Engine Parts?

Best Prices

Gulf Engine Parts is a supplier of genuine Caterpillar Engine Parts at the best prices in the UAE. From Filters and Cylinder Heads to Water Pumps and Turbochargers, we ensure you find everything you need for your Diesel Engines at the best prices.

FREE Shipping in UAE

Gulf Engine Parts offer FREE shipping anywhere in UAE and delivery to door with all Duties and Taxes paid for international orders.

Genuine Engine Parts Supplier

We are a trusted supplier of Genuine Diesel Engine Parts with a comprehensive range covering top Engine Brands in the market. All Cat Engine Parts come with a 12-month warranty.

Exceptional Customer Service

Our dedicated customer service team is always ready to assist you with any queries or concerns, ensuring a smooth and satisfactory purchasing experience from start to finish.