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Silencer DeLong 2,000–540008DZ91259540008

Silencer DeLong 2,000–540008DZ91259540008

Silencer DeLong F2 thousand--1150DZ954001150

Silencer DeLong F2 thousand--1150DZ954001150

Haval internal exhaust muffler

Haval internal exhaust muffler

Silencer HOWO A7 Wide AZ9925540080

Silencer HOWO A7 Wide AZ9925540080

Silencer for Howo 13 Series WG9727540001

Silencer for Howo 13 Series WG9727540001

Muffler for HOWO 13‑Series, Part No. WG9727540001: The WG9727540001 muffler assembly for China National Heavy Duty Truck’s HOWO series trucks features an efficient noise‑reduction and durability‑focused design, making it standard equipment on China V and China VI‑compliant models. I. Technical Parameters and Structural Optimization The WG9727540001 muffler employs a double‑layer stainless steel composite structure: the outer layer is made of 304 stainless steel, while the inner layer consists of aluminum‑coated steel sheet, seamlessly joined by laser welding. Inside, three stages of noise reduction are implemented: a honeycomb ceramic catalytic carrier lowers exhaust temperature and breaks down harmful gases; porous sound‑absorbing cotton attenuates mid‑ to high‑frequency noise; and an expansion chamber design eliminates low‑frequency noise. Measured results show that it reduces exhaust noise from 110 dB to below 78 dB in HOWO T7H, A7, and other models, meeting the GB 1495‑2002 standard. The muffler shell is 2.5 mm thick, capable of withstanding temperatures up to 600°C, and its internal catalytic carrier is coated with a palladium‑rhodium alloy, improving sulfur poisoning resistance by 40%. For the HOWO 13‑series vehicles, the backpressure design has been optimized to keep exhaust backpressure within 3.2 kPa while achieving effective noise reduction, thus preventing power loss. II. Market Compatibility and Vehicle Coverage The WG9727540001 muffler assembly is primarily compatible with China National Heavy Duty Truck’s HOWO series diesel vehicles compliant with China V and China VI emission standards, including: - HOWO T7H 6×4 tractor (MC11/MC13 engines) - HOWO A7 8×4 dump truck (D10.38 engine) - HOWO TX7 4×2 cargo truck (WP10H engine) - HOWO N7G concrete mixer (MC07 engine) According to data from CNHTC Parts Network as of May 2026, this muffler can replace older models such as WG9725540010 and is cross‑model compatible. Some dealers offer a “muffler assembly + decorative cover” package; the cover is made of carbon fiber, reducing weight by 35%, and is suitable for high‑end aftermarket modifications on HOWO MT13 China VI‑compliant vehicles.
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