Description
Product Overview
The KD KISONIED 12‑volt solenoid valve is a direct‑replacement component designed for the Detroit DDE 12.7 liter, 400 HP diesel engine series found in Freightliner M915A2 and M917 6×6 tractors. Constructed from a machined metal housing, the valve provides a corrosion‑resistant exterior that stands up to the harsh environments typical of heavy‑duty trucking. It features three female 1/8‑27 NPTF ports—one inlet, one normally open outlet, and one normally closed outlet—allowing precise control of the engine fan clutch. The valve operates within a pressure range of 80 to 160 psi and is rated for a maximum operating pressure of 160 psi, ensuring consistent performance under high‑load conditions. With a compact package measuring 4.45 × 3.31 × 2.64 inches and a lightweight of just 10.2 oz, it integrates seamlessly into existing engine bays without requiring modifications.
Usage
Designed for commercial and vocational trucks, this solenoid valve excels in applications where reliable cooling system regulation is critical. It is ideal for long‑haul fleets, construction equipment, and emergency response vehicles that demand continuous operation in extreme temperatures. The valve’s 12‑volt coil is compatible with standard truck electrical systems, and its normally open/closed configuration enables automatic fan engagement during high‑temperature events while allowing manual override when needed. Installation is straightforward: the valve bolts directly into the factory‑specified mounting location, and the NPTF connections mate with existing hoses without the need for adapters. 
Why Choose Us
KD KISONIED adheres to strict quality standards, employing precision machining and rigorous testing to match OEM specifications. Each valve undergoes pressure cycling and leak testing to guarantee durability and leak‑free operation over the product’s service life. The 1‑year warranty underscores our confidence in the valve’s build quality, and our dedicated technical support team assists with fitment verification and troubleshooting. By choosing this valve, customers benefit from OEM‑level performance at a competitive price, reduced downtime thanks to the direct‑fit design, and the peace of mind that comes from a reputable manufacturer.
Key Features
- Machined metal housing for superior durability and corrosion resistance.
- Three 1/8‑27 NPTF ports (inlet, normally open, normally closed) for flexible fan clutch control.
- Operating pressure range 80‑160 psi, maximum 160 psi for high‑load applications.
- Direct‑fit OEM replacement for Detroit DDE 12.7 L engines, eliminating modification needs.
- Compact size and lightweight design (10.2 oz) for easy installation in tight engine bays.
FAQ
Is this valve compatible with all Detroit DDE engines?
It is specifically engineered for the 12.7 liter, 400 HP Detroit DDE engine series used in Freightliner M915A2 and M917 6×6 models. Verify the part numbers listed in the product details to ensure exact fit.
What is the difference between the normally open and normally closed ports?
The normally open port allows coolant flow when the valve is not energized, providing baseline cooling. The normally closed port opens only when the coil is energized, enabling additional cooling during high‑temperature conditions.
Can I install this valve myself?
Yes. The valve bolts directly into the factory‑specified location and uses standard NPTF fittings. Basic hand tools and a torque wrench are sufficient for installation.
Does the valve require a separate power source?
No. It operates on the vehicle’s 12‑volt electrical system, drawing power only when the fan clutch control circuit signals activation.
What warranty does KD KISONIED provide?
The valve comes with a 1‑year limited warranty covering defects in materials and workmanship. Contact our support team for warranty claims or technical assistance.







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