Product Introduction

This precision-engineered fixing nut is designed to securely fasten the shift fork pivot pin, ensuring the shift mechanism maintains precise alignment for reliable gear changes.

• Structure & Material: Made from high-strength alloy steel, it features a hexagonal head for tool access and an integrated sealing washer to prevent gear oil leakage. The surface is phosphate-coated for corrosion resistance and enhanced torque retention.

• Performance: Provides a high-torque, vibration-resistant lock on the pivot pin, eliminating play in the shift fork and ensuring crisp, accurate gear engagement. The integrated seal prevents lubricant loss and contamination.

• Durability: The hardened steel construction resists deformation and loosening under frequent shifting and heavy loads, maintaining a secure connection for long service life.

Core Function

1. Pivot Pin Locking: Secures the shift fork pivot pin to the transmission housing, preventing axial movement.

2. Play Elimination: Eliminates lateral play in the shift fork, ensuring precise alignment with synchronizer sleeves.

3. Sealing: The integrated washer seals the pivot pin bore, preventing gear oil leakage and contamination.

Fixing Nut WG2229100011 – SINOTRUK HW Series Gearbox Spare Part

When your SINOTRUK HW series gearbox demands a reliable fixing nut that holds everything firmly in place, the Fixing Nut WG2229100011 delivers exactly that. Engineered to meet OEM specifications, this precision-machined component ensures your heavy-duty transmission system operates smoothly under the toughest working conditions. Whether you’re maintaining a fleet or sourcing replacement parts for your workshop, this genuine-quality fixing nut keeps your SINOTRUK trucks running without unexpected downtime.

Why Choose This Fixing Nut WG2229100011 for Your SINOTRUK HW Gearbox?

A gearbox is only as strong as its smallest component. The Fixing Nut WG2229100011 plays a critical role in securing internal gearbox assemblies, preventing loosening caused by vibration, thermal expansion, and heavy torque loads. Here’s why procurement managers across Africa, the Middle East, and Southeast Asia trust this part:

• OEM-Grade Precision: Manufactured to match the exact dimensional tolerances of the original SINOTRUK HW series gearbox fixing nut, so it fits perfectly every time.
• Superior Material Strength: Made from high-grade alloy steel with appropriate heat treatment, this nut resists fatigue, corrosion, and thread stripping even under sustained high-torque conditions.
• Reliable Locking Performance: The fixing nut WG2229100011 maintains consistent clamping force throughout the gearbox’s service life, reducing the risk of component shift or gear misalignment.
• Extended Service Intervals: Because it stays tight and performs consistently, you spend less on maintenance labor and avoid costly unplanned repairs.
• Factory-Direct Cost Savings: Sourced directly from our partner factories in China, you get genuine-equivalent quality without the premium OEM price tag.

Application & Compatible Models

The Fixing Nut WG2229100011 is specifically designed for use in the SINOTRUK HW series gearbox, which is one of the most widely deployed heavy-duty transmissions in commercial vehicles worldwide. This gearbox fixing nut is commonly found in the following applications:

• SINOTRUK HOWO A7 heavy-duty trucks equipped with HW19710 / HW19712 transmissions
• SINOTRUK HOWO T7H tractor heads with HW25712 gearbox configurations
• SINOTRUK SITRAK C7H series utilizing HW series manual transmissions
• SINOTRUK HOWO dump trucks, mixer trucks, and cargo trucks running HW gearbox variants

If your vehicle uses an HW series transmission and the maintenance manual specifies part number WG2229100011, this fixing nut is a direct-fit replacement. For additional SINOTRUK gearbox parts or to browse our complete SINOTRUK HOWO gearbox parts catalog, we invite you to explore our range.

Technical Specifications

Accuracy matters when you’re sourcing transmission components. Below you’ll find the key specifications for the Fixing Nut WG2229100011 SINOTRUK HW series gearbox part:

OEM/ODM Capability & Custom Packaging

At Mettlead, we understand that different markets require different branding strategies. That’s why we offer flexible white-label and custom packaging options for the Fixing Nut WG2229100011 and all other SINOTRUK HOWO truck parts in our catalog.

• White-Label Service: We can ship the fixing nut with your own brand label and packaging design, so your customers see your brand front and center.
• Custom Packaging: Choose individual blister packs, bulk carton packing, or branded boxes — whatever suits your distribution model best.
• Strict Quality Control: Every batch of WG2229100011 fixing nuts undergoes dimensional inspection, hardness testing, and thread gauge verification before shipment.
• Factory Visit Welcome: We encourage procurement managers to visit our facility in China to audit quality processes firsthand.

Customer Case Study: Fixing Nut WG2229100011 Bulk Order for East African Fleet

Earlier this year, a fleet management company operating over 200 SINOTRUK HOWO trucks in Tanzania reached out to Mettlead. They were experiencing recurring gearbox vibration issues traced back to substandard fixing nuts that loosened prematurely. After switching to our Fixing Nut WG2229100011 sourced for their SINOTRUK HW series gearboxes, the results spoke for themselves.

Within three months, gearbox-related maintenance tickets dropped by 40%. The procurement manager noted that the OEM-equivalent quality of the WG2229100011 fixing nut eliminated thread wear problems they previously encountered with cheaper alternatives. Moreover, our factory-direct pricing allowed them to reduce per-unit spare parts costs by approximately 25% compared to their former supplier. Today, they order HW series gearbox fixing nuts and other transmission components from Mettlead on a quarterly replenishment cycle.

Frequently Asked Questions – Fixing Nut WG2229100011

What exact function does the Fixing Nut WG2229100011 perform inside the HW gearbox?

The fixing nut WG2229100011 secures critical rotating or stationary components within the SINOTRUK HW series gearbox. It provides consistent axial clamping force to prevent internal parts from shifting under heavy torque and vibration. In simple terms, it locks things in place so your gears stay properly aligned.

How do I verify that WG2229100011 is the correct part number for my truck?

You can cross-reference this number in your SINOTRUK HW gearbox parts manual or check the marking on the original nut you’re replacing. If you’re still unsure, send us your gearbox model number and VIN — our team will confirm compatibility within 24 hours.

What happens if I use a low-quality fixing nut instead of an OEM-equivalent one?

A substandard fixing nut may lose clamping force over time due to inferior material or incorrect heat treatment. This can lead to internal component loosening, gear misalignment, abnormal noise, increased wear, and in severe cases, complete gearbox failure. Investing in a quality WG2229100011 fixing nut protects the entire transmission assembly.

Is this fixing nut compatible with both the HW19710 and HW25712 gearbox models?

Yes. The WG2229100011 fixing nut is used across multiple HW series gearbox variants, including HW19710, HW19712, and HW25712. It’s a shared component in the SINOTRUK HW platform, making it a versatile stocking item for workshops and distributors.

What torque specification should I follow when installing this fixing nut?

Always refer to the official SINOTRUK HW gearbox service manual for the precise torque value. Over-tightening can damage threads or distort mating surfaces, while under-tightening risks loosening during operation. If you need installation guidance, our technical team can provide the recommended torque range upon request.

Can I order a sample before committing to a bulk purchase?

Absolutely. We encourage sample orders so you can inspect dimensional accuracy, material quality, and finish before placing a larger order. Sample lead time is typically 3–5 business days.

Ready to Secure Your Supply of Fixing Nut WG2229100011?

Stop worrying about gearbox reliability and start working with a supplier that understands SINOTRUK HW series transmissions inside and out. Whether you need 50 pieces or 5,000, Mettlead offers competitive factory-direct pricing, fast lead times, and the quality assurance your fleet deserves.

Get your personalized quote today. Simply send us your required quantity, destination country, and any packaging preferences. Our team typically responds within 12 hours with pricing and delivery options.

👉 Contact Us Now to Request a Quote for WG2229100011

Mettlead — Your reliable partner for SINOTRUK HOWO truck spare parts, shipping worldwide from China with confidence.