The 14571231C Gear-Pumps represent the zenith of hydraulic engineering for heavy-duty vehicles. As critical Howo/Sitrak truck parts, these pumps deliver exceptional flow consistency and pressure stability, ensuring your fleet operates with maximum efficiency. The OEM code 14571231C is your guarantee of genuine compatibility — a hallmark of quality that meets the most demanding transport operations. With a robust cast-iron housing and precision-ground gears, this pump outlasts conventional alternatives, reducing downtime and total cost of ownership.
When you choose the 14571231C specification, you are selecting a pump that has been validated under extreme conditions. Howo’s engineering legacy ensures that every gear pump delivers a volumetric efficiency above 92%, even at high operating temperatures. The internal clearances are optimized to balance leakage and mechanical friction, resulting in a service life that consistently exceeds 8,000 hours in real-world haulage applications.
Continuous duty, peak 28 MPa
Withstands harsh climates
Compact, high power density
Each unit dyno-tested
Below you will find the critical parameters that define the Gear Pumps performance standard. All values are measured under ISO 4406 cleanliness level 18/16/13.
| Parameter | Value | Condition |
|---|---|---|
| Displacement | 63 cc/rev | @ 1000 rpm |
| Max. continuous pressure | 25 MPa | Oil viscosity 46 cSt |
| Peak pressure | 28 MPa | ≤ 10 sec |
| Speed range | 600 – 2800 rpm | Bi-directional |
| Inlet / outlet ports | G3/4” – G1/2” | SAE flanges opt. |
| Housing material | High-strength cast iron | GGG 50 |
| Shaft type | Straight keyed 32mm | or splined |
| Weight | 16.8 kg (dry) | ± 0.3 kg |
The gear teeth are manufactured using a proprietary hobbing and shaving process, achieving a surface finish of Ra 0.8 µm. This reduces friction and enhances the volumetric efficiency, which is a hallmark of the Gear Pumps series. The double-lip shaft seal, made of FKM compound, provides superior resistance to high-temperature degradation and prevents external leakage even after extended idle periods.
The Gear-Pumps is a direct-fit replacement for multiple Howo and Sitrak chassis, including the T7H, C7H, A7, and the popular 6×4 and 8×4 dump truck variants. Its mounting interface conforms to the standard SAE J744, ensuring a bolt-on installation without the need for adaptor plates. The Gear Pumps designation cross-references to the OEM parts catalog, simplifying identification for workshops and fleet managers.
Independent tests have demonstrated that the Gear Pumps delivers a flow stability of ±1.5% across the entire speed range, which is 20% better than industry average. This precision translates to smoother steering, more reliable hoist operation, and consistent braking assistance. The pump’s efficiency curve peaks at 1800 rpm, making it ideal for long-haul applications where fuel economy is paramount.
“After switching to the Gear-Pumps 14571231C, our fleet saw a 7% reduction in hydraulic-related service calls. The 14571231C quality standard is unmatched.” – Fleet Manager, Western Australia
The Gear-Pumps features hardened steel gears (HRC 58-62) and a hydrodynamic bearing design that supports radial loads up to 1500 N. The housing incorporates a cast-in relief valve that protects against pressure spikes, a common cause of premature failure in lesser pumps. Regular maintenance is simplified with external drain ports and a magnetic drain plug that captures ferrous debris.
The 14571231C standard ensures that every Gear-Pumps 14571231C is fully interchangeable with existing hydraulic systems. Whether you are replacing a worn unit or upgrading a fleet, the dimensional accuracy (±0.02 mm on critical mounting faces) guarantees a perfect fit. Howo’s commitment to quality means that each pump is accompanied by a detailed test report, documenting the performance against the Gear Pumps criteria.
This gear pump embodies the engineering excellence of Howo, delivering reliable hydraulic power for steering, lifting, and auxiliary systems. The Gear Pumps reference is your shortcut to genuine compatibility and robust performance. With a service life that frequently exceeds 10,000 hours in on-road applications, it represents a smart investment for any fleet operator.
OEM 14571231C – direct replacement – no modifications needed
For any technical inquiry, always refer to the 14571231C spec sheet. The Gear-Pumps 14571231C continues to set the benchmark for reliability in the Howo and Sitrak ecosystem.
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