SINOTRUK HOWO AC16 Heavy Duty Truck AZ9981320139 Inter-Axle Differential Cross Spider Shaft
This heavy-duty truck wheel-end and differential reducer component is a premium side half shaft gear precision-engineered for heavy commercial transport axles. Featuring an optimized involute tooth profile, it meshes smoothly with planet gears within the rear differential assembly to deliver seamless power split to the axle shafts. This transmission component safeguards heavy-load vehicles against rotational binding and catastrophic gear tooth shearing during sharp turns, heavy-torque starts, or steep climbs. Engineered to withstand continuous multi-directional stress and severe driveline shocks, this side gear ensures consistent, high-efficiency mechanical torque transfer, helping fleet operators sustain maximum uptime and driveline safety across demanding transport corridors.
Product Specification
| Product Name |
Rear Half Shaft Gear |
| Part Number |
AZ9981320166 |
| Condition |
New |
| Origin |
China |
| Quality Standard |
100% Tested |
| Quality Certification |
ISO, CCC, GSO, CE, SGS, TUV |
| Weight |
1.85 KG |
| Dimensions |
135 X 135 X 65 mm
|
Precision Profile Involute & Safety Upgrade: Engineered with a precision-forged involute tooth profile, this side half shaft gear ensures an optimized contact pattern and uniform load distribution across meshing gear teeth. It eliminates concentrated stress points during sudden torque spikes, providing smooth differential operation that prevents sudden gear fracturing or axle lockups on high-speed freight routes.
20CrMnTi Alloy & Carburized Durability: Manufactured from premium 20CrMnTi heavy-duty gear steel and treated with an advanced multi-purpose furnace carburizing process, the gear features a diamond-hard exterior shell with an ultra-tough shock-absorbing core. This dual-metallurgical structure delivers superb anti-pitting resistance, extending operational life cycles and minimizing rear axle overhaul intervals.
All-Weather Resilience & Thermal Resistance: Engineered to maintain absolute dimensional stability under severe friction-induced heat, this gear prevents thermal deformation during continuous high-load operations. It guarantees reliable, smooth power transmission in harsh environmental extremes, from mud-clogged mining operations and dusty construction tracks to freezing cross-border logistics corridors.
100% OEM Alignment & Direct Replacement: Crafted strictly according to factory AC16 axle master blueprints, this side gear matches internal spline counts, pitch diameters, and thrust washer interfaces exactly. Driveline mechanics can execute a seamless, drop-in replacement without differential box machining, lowering vehicle downtime and cutting fleet repair labor expenses.
Fine Grinding Optimization & Drivetrain Silence: Undergoing a specialized CNC micro-grinding finish, the gear faces exhibit ultra-low surface roughness that dampens backlash fluctuations and low-frequency chassis chattering. By eliminating gear play and knocking noises within the rear axle housing, it optimizes drivetrain stability and enhances driver handling comfort.
Ordering & Shipping Information
Packing Options
Carton, Wooden Box, Pallet
Shipping Methods
Courier / Air Freight / Sea Freight
Payment Terms
L/C, T/T, Western Union, PayPal, Money Gram, Alipay
Loading Port
Any Port in China
FAQ
Q: Why choose us?
A: No more dealing with multiple suppliers. We offer a comprehensive inventory of Shaanxi Shacman Delong truck parts. From small leaf spring pins to major engine assemblies, we fulfill all your fleet maintenance and wholesale needs in one stop.
Q: How can I verify if this part is 100% compatible with my truck model?
A: Please click the inquiry button to send us your VIN (Vehicle Identification Number), chassis number, engine model, OE number, photos, and specific dimensions, and our professional engineering team will verify the compatibility for you within 24 hours.
Q: Are the accessories Authentic product from the manufacturer? What are the quality standards of your heavy-duty truck parts?
A: Yes, we maintain close cooperation with the aforementioned brands. All our truck parts are manufactured strictly following OEM standards or premium aftermarket specifications. They undergo rigorous quality testing, such as fatigue and wear resistance testing, ensuring exceptional durability under demanding driving conditions, including harsh mining fields, heavy-haul transport, and bumpy terrains.
Q: Do you support low MOQ for testing and do you offer bulk discounts?
A: Yes! We warmly welcome fleet owners, repair shops, and auto parts wholesalers. We support flexible Minimum Order Quantities (MOQ) to help you test our market quality. Contact us today via the inquiry form to get a tiered wholesale price list tailored to your potential order volume.
Q: What is your estimated delivery time and shipping method?
A: We maintain a robust inventory of fast-moving Shacman Delong series parts to ensure quick dispatch within 3-7 business days. For bulk orders, we offer flexible logistics solutions including Sea Freight, Air Cargo, and International Express (DHL/FedEx/UPS) based on your budget and urgency.
Q: Do your truck chassis, engine, and transmission parts come with a warranty?
A: We offer a 6 to 12-month worry-free warranty across our product lines against manufacturing defects. If you experience any issues, our customer service team is ready to assist you with quick replacements or technical support to minimize your fleet's downtime.
