The VG2600118898 Exhaust gas turbocharger is not just a spare part; it is a power‑additive that redefines your truck’s responsiveness. Designed for Howo and Sitrak heavy‑duty engines, this turbocharger features a billet compressor wheel and a mar-M247 turbine wheel, offering superior fatigue resistance. The wastegate actuator is calibrated for rapid boost response, minimizing turbo lag even at low RPM. Every unit undergoes dynamic balancing at 120,000 RPM to ensure vibration‑free operation, extending bearing life and reducing noise.
With a turbine housing made of high‑silicon ductile iron and a heat‑shielded bearing housing, the VG2600118898 handles exhaust temperatures up to 980°C. This robust construction makes it ideal for long‑haul, off‑road, and construction applications. The turbocharger directly replaces OEM units with the same part number, ensuring a bolt‑on fit without additional modifications. Fleet managers appreciate the reduced downtime and improved fuel economy—up to 6% compared to worn turbos—thanks to the advanced aerodynamic profile of the compressor wheel.
| Parameter | Value (VG2600118898) |
|---|---|
| OEM Number | VG2600118898 |
| Type | Exhaust gas turbocharger, wastegate |
| Compressor Wheel | Billet aluminium, 6+6 blade |
| Turbine Wheel | Mar-M247 superalloy |
| Max. Boost Pressure | 2.8 bar (absolute) |
| Max. Turbine Inlet Temp. | 980°C |
| Bearing Type | Floating ring + thrust bearing |
| Actuator Type | Pneumatic wastegate, 0.8‑1.2 bar |
| Weight | 12.7 kg (complete assembly) |
| Fitment | Howo A7, T7H, Sitrak C7H, C9H |
The VG2600118898 exhaust gas turbocharger is the direct replacement for Howo and Sitrak trucks equipped with MC11, MC13, and WP12/13 engines. It is compatible with both manual and automated transmissions, providing consistent boost across the entire operating range. For fleet operators, standardizing on this turbocharger simplifies inventory and reduces maintenance complexity.
In rigorous field tests, the VG2600118898 demonstrated a 22% reduction in soot accumulation on the turbine blades, thanks to optimized blade geometry that improves exhaust gas scavenging. This translates into longer DPF life and lower regeneration frequency. The turbocharger also includes a heat‑activated coating on the turbine housing that reduces radiant heat, protecting adjacent components like the starter motor and fuel lines.
The VG2600118898 integrates a twin‑entry turbine housing that divides exhaust pulses from cylinders 1‑3 and 4‑6, reducing interference and improving pulse energy utilization. This design, combined with a variable‑nozzle geometry (VNG) – though fixed geometry on this model – gives a near‑linear boost curve. The compressor map is optimized for high‑altitude operation, maintaining sea‑level boost pressure up to 3,000 meters without surge.
Materials science plays a key role: the turbine wheel is investment‑cast from Inconel 713C, offering exceptional creep resistance. The bearing housing uses a dedicated oil gallery with a restrictor orifice to control oil flow, preventing seal leakage even during over‑run conditions. Every VG2600118898 unit is leak‑tested with helium at 2.5 bar and spin‑tested for overspeed tolerance.
For workshops, the VG2600118898 comes with a pre‑installed gasket set and new oil feed pipe, eliminating the need for additional parts during installation. The torque specifications for mounting bolts are clearly marked on the housing, simplifying the replacement process and reducing the risk of incorrect installation.
To maximize the service life of your VG2600118898 exhaust gas turbocharger, observe the following best practices: always allow the engine to idle for 2‑3 minutes before shutdown to cool the turbo; use high‑quality engine oil (API CJ‑4 or E9) and replace it at recommended intervals; inspect the air intake system for leaks or restrictions that could cause overspeed. With proper care, the VG2600118898 reliably exceeds 500,000 km in line‑haul applications.
Common failure modes – such as shaft play or actuator sticking – are mitigated by the robust design of the VG2600118898. The thrust bearing features a stepped‑oil groove that maintains a protective film even at low oil pressure, while the wastegate bushing is made of sintered bronze for wear resistance. For preventive maintenance, check the turbocharger for unusual noise or smoke every 20,000 km; early detection can prevent costly engine damage.
The compressor map of the VG2600118898 shows a wide efficiency island exceeding 76% across the engine’s operating range. At 2,000 RPM, the turbo delivers 1.9 bar boost pressure, translating to 520 Nm of torque increase over naturally aspirated operation. The surge line is pushed leftward, allowing stable operation even at 1,200 RPM in high‑gear conditions.
Engine dyno results indicate that the VG2600118898 reduces specific fuel consumption by 4.3 g/kWh at rated power, a significant saving for long‑distance fleets. The turbo’s inertia is reduced by 15% compared to the previous generation, which sharpens throttle response and makes driving more responsive in urban stop‑and‑go traffic.
Every VG2600118898 exhaust gas turbocharger is manufactured under IATF 16949:2016 quality management systems. The production process includes 100% inspection of critical dimensions using CMM machines and 100% high‑speed balancing. The turbocharger carries the CE mark and complies with ECE R85 for power unit approval. For customers, this means a product that meets the highest standards of reliability and performance, backed by traceable serial numbers and test reports.
The VG2600118898 is more than a replacement – it’s a performance upgrade that pays for itself through fuel savings and extended engine life. Choose the genuine part for your Howo or Sitrak.
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