The Caterpillar 7E-1598 Varifuel Mixer Gas Control Valve is a critical fuel management component designed for large-bore gaseous-fueled engines. Installed directly within the carburetor assembly, it precisely regulates fuel flow to achieve a highly variable, accurately balanced air-and-fuel blend required for efficient internal combustion.
1. Core Dimensions & Weight
- Length: 203.20 mm (8.00 in)
- Width: 127.00 mm (5.00 in)
- Height / Thickness: 5.10 mm (0.20 in)
-
Net Weight: 0.05 kg (0.11 lbs)
2. Material & Design Specs
- Material Grade: Premium temperature-stable alloy and wear-resistant polymer composites built for continuous exposure to gaseous fuels.
- Sub-Assembly Design: Serves as a primary gas control valve interfacing with the Varifuel mixer piston system.
-
Structural Configuration: Standard flat-top design engineered to securely fasten the piston sections together without requiring separate locking washers or multi-screw structural anchoring.
3. Equipment & Engine Compatibility
This gas control fuel valve is deployed across large-bore, high-displacement Caterpillar gas-compression and power-generation engines running on natural gas or alternative gaseous fuels:
-
Gas Engine Series: G3408C, G3412, G3412C, G3508, G3512, G3516 (including specialized 4WD, 2JF, 9TG, 4KC, 5JD, 7NJ, 3RC, 8LD, 4EK, and 5PN series engine groups).
-
Generator & Power Platforms: Compatible with Caterpillar SR4 and SR4B alternator setups, CG137-08, CG137-12 generator groups, and XQG400 power modules.
-
Carburetor System Attachments: Integrates natively into 9Y-0831, 9Y-4255, 9Y-4358, 9Y-3834, 7E-4064, 100-7478, and 334-2678 Carburetor Groups.
4. Part Cross-References
- Alternative Part Names: Valve Group-Fuel, Varifuel Mixer Valve, Mixer A
- Alternative Part Numbers: 7E1598, 7E-1598
