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In natural gas engines like those found in the Sinotruk Sitrak (Shandeka) and HOWO A7 series, the air-fuel mixture precision determines everything from fuel economy to engine longevity. The VG1238110130 Mixer Valve Core Assembly is the heart of the gas control system, responsible for regulating the flow of gas to ensure a perfect stoichiometric ratio.
Whether you are operating a fleet of Golden Prince tippers or Hohan tractors, using a sub-standard valve core often leads to unstable idling and increased carbon deposits. Our genuine Sinotruk HOWO parts are tested under extreme pressure and temperature variations to ensure that your CNG or LNG engine maintains peak thermal efficiency. The internal plunger and seals are crafted from high-grade, corrosion-resistant materials to withstand the unique chemical properties of natural gas fuels.
Technical Specifications:
Part Name: Gas Mixer Valve Core / Plunger Assembly
Part Number: VG1238110130
Applicable Brands: Sinotruk HOWO, Sitrak (Shandeka), Hohan, Golden Prince
Engine Compatibility: T10, T12, and MT series gas engines
Material: High-temperature resistant alloy with reinforced fluororubber seals
Precision Grade: OEM Standard (Strict tolerance for flow control)
Weight: 0.82 kg
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Installing a mixer valve core is a delicate task. To avoid engine misfires or "Check Engine" lights, please follow these expert tips:
Pressure Relief First: Before disassembling the mixer housing, ensure the gas supply is shut off and the residual pressure in the line has been safely bled off.
Cleanliness is Critical: Even a tiny speck of dust inside the valve seat can prevent the VG1238110130 from sealing correctly. Use a lint-free cloth and specialized cleaner to wipe the internal housing before insertion.
Seal Inspection: Always lubricate the O-rings slightly with a gas-compatible synthetic lubricant (avoid petroleum-based greases which can degrade the rubber) to ensure a vacuum-tight seal during assembly.
Calibration Check: After installation, we recommend using a diagnostic tool to monitor the "Short Term Fuel Trim" values. A new valve core may require a minor adjustment of the electronic gas regulator to sync perfectly with the ECU's mapping.
Leak Test: Once installed, use a gas leak detector or soap solution around the mixer seams to confirm no gas is escaping under pressure.
