Premium-quality Howo Differential Parts engineered for extreme durability. Trusted by fleets worldwide — experience zero compromise with certified Sinotruk HOWO components. Your journey to unmatched performance starts here.
Your truck’s differential transfers power from the driveshaft to the wheels while allowing them to rotate at different speeds. Genuine howo differential parts ensure smooth cornering, reduce tire wear, and handle extreme torque. As part of our premium Howo truck parts range, we stock complete differential assemblies, crown wheels, pinions, spider gears, and bearing kits for all popular axles. Whether you need a howo differential for an AC16 or howo truck differential for a MCY13 axle, our components are heat‑treated and precision‑ground for long life.
A failing howo differential causes whining noises, vibration, and eventual lock‑up. Our replacement parts restore full axle performance, keeping your fleet moving. From spider gears to complete third members, we have what you need.
Allows outer wheel to rotate faster than inner wheel, reducing tire scrubbing and improving handling.
Our howo differential components are forged from 20CrMnTi steel, carburized and hardened to HRC 58‑62, handling up to 20,000 Nm input.
Precision lapped gears and heavy‑duty taper roller bearings give up to 500,000 km life under normal loads.
Our howo truck differential parts fit AC16, HC16, MCY13, ST16, and other popular axles. Direct OEM replacement.
| Axle Model | Application | Differential Assy Part Number | Gear Ratio |
|---|---|---|---|
| AC16 | 371HP 6×4, heavy haul | AZ9231320273 | 4.875 |
| HC16 | Military 6×6, mining | AZ9981320326 | 5.73 |
| MCY13 | T7H 540HP, Euro 6 | 812-35105-0193 | 3.73 |
| ST16 | Old model 336HP | WG9231320023 | 4.44 |

Howo 371 / 420 (AC16 axle)
Our howo differential parts directly fit 6×4 and 8×4 dump trucks, tractors. Use AZ9231320273 crown wheel and pinion set with ratio 4.875.

Howo T7H / Sitrak C7H (MCY13 axle)
Euro 5/6 trucks need the 3.73 ratio differential (812-35105-0193). Our howo truck differential components maintain smooth highway cruise.
“The crown wheel and pinion set for my AC16 axle was a perfect match. Quiet operation and no more whining noise. Thanks for fast shipping to Peru.”
– Diego, Fleet Mechanic, Peru“Bought a complete howo differential carrier for my T7H. Bolted right in. The truck pulls smoothly and fuel economy improved 5%.”
– Ahmed, Owner‑Operator, UAE“We rebuilt 8 axles using Howo differential parts. The spider gears and bearings are high quality. Will order again.”
– Suresh, Workshop Owner, India“The MCY13 diff kit arrived with all shims and a clear adjustment guide. Saved me hours. Great support team.”
– Viktor, Fleet Supervisor, RussiaKeep Your Drivetrain Reliable with Premium Howo Differential Parts – The differential is often neglected until failure. A properly functioning howo differential ensures even power distribution, reduces tire wear, and prevents axle lock‑up. Our components are manufactured using vacuum‑degassed steel and CNC‑hobbed to AGMA Class 10 quality. Each howo truck differential kit includes pre‑matched crown wheel and pinion, taper bearings, crush sleeve, shims, and a new pinion seal. For heavy‑duty applications (mining, logging), we recommend upgrading to a limited‑slip or locking differential.
We also stock complete differential carriers – just bolt in and go. For fleets, we offer axle rebuild packages with everything needed for one side or both. Save time and money by ordering a full master overhaul kit. All parts come with detailed torque specs and adjustment instructions. Our technical team can also guide you through the differential setup process via remote video call. With stock in three continents, most orders arrive within a week. Choose genuine howo differential components – the backbone of your truck’s drivetrain.
Need a custom ratio for special terrain? Contact our engineers. We can supply any gear ratio from 2.93 to 7.17 for AC16, MCY13, and ST16 axles. Genuine howo differential parts – reliability you can count on.