JTL Parts Coolant Reservoir Tank DR104002 (Engine Coolant Expansion Tank / Radiator Overflow Reservoir) – Replacement for CP237001 / ST4002 / 5751024 – Heavy Duty Cooling System for Kenworth T680, T880 & Peterbilt 579

COOLANT RESERVOIR DR104002 Engine Coolant Tank

Replacement for DR104002 / CP237001 – Heavy Duty Application

The Coolant Reservoir DR104002 is designed for heavy-duty trucks, providing reliable expansion and storage for engine coolant. This reservoir helps maintain correct coolant levels, prevents overheating, and ensures stable engine temperature under demanding operating conditions.

Product Details

• Part Number: DR104002
• Type: Coolant Reservoir / Expansion Tank
• Application: Engine Cooling System
• Cross Reference: DR104002, CP237001, ST4002, 5751024

Key Benefits

• Maintains proper coolant level in the system
• Prevents engine overheating and thermal damage
• Designed for high-pressure cooling systems
• Durable construction for heavy-duty applications
• Ensures stable engine temperature control

Function

• Stores excess coolant during thermal expansion
• Returns coolant to the system as needed
• Maintains pressure balance in the cooling system
• Supports continuous engine cooling performance

High-Quality Construction

• Reinforced high-strength plastic body
• Heat and vibration resistant design
• OEM-style fit and durability
• Includes mounting points for easy installation

Vehicle Fitment

Compatible with heavy-duty trucks such as:

• Kenworth T680
• Kenworth T880
• Peterbilt 579

Fits Models

• Kenworth T680 (2013–2021)
• Kenworth T880 (2013–2021)
• Peterbilt 579 (2013–2021)

Note: Fitment may vary depending on engine and configuration. Always verify part number before purchase.

Replaces / Cross Reference Numbers

• DR104002
• CP237001
• ST4002
• 5751024

Installation

• Direct replacement design
• No modifications required
• Quick and secure installation

Package Includes

• 1 x Coolant Reservoir