Product Name: SINOTRUK HOWO 70 Mine King Front Spring Front Bracket
OEM Number: WG9770520320
Brand: SINOTRUK / CNHTC (China National Heavy Duty Truck Group)
Application: 70 Mine King front spring mounting; also compatible with Steyr, HOWO T7H, HOWO T5G, Sitrak (C7H, C5H) series

Overview

The SINOTRUK HOWO front spring front bracket with OEM number WG9770520320 is a key structural component of the front suspension system on the 70 Mine King heavy-duty mining truck. It serves as the front mounting point for the front leaf spring, securely attaching the spring to the chassis frame. This bracket is precision cast from high-strength ductile iron and is also a direct fit for several other SINOTRUK and Steyr-based truck models, including T7H, T5G, and Sitrak (C7H/C5H). Using genuine OEM brackets ensures correct suspension geometry, safe load transfer, and long service life under extreme off-road or heavy-load conditions.

Key Advantages

• Genuine SINOTRUK original part with exact fitment for 70 Mine King and cross-compatible with Steyr, T7H, T5G, Sitrak.

• Manufactured from high-strength ductile iron (QT500-7 or equivalent) for excellent impact resistance and fatigue life.

• Precision-machined mounting holes and mating surfaces for accurate alignment without shimming.

• Corrosion-resistant black coating applied to withstand mud, salt, and mining environment exposure.

• Supports proper leaf spring positioning, prevents axle misalignment, and reduces frame stress.

• Direct bolt-on replacement – uses original chassis mounting bolts and spring pin.

Technical Specifications

OEM Part Number: WG9770520320
Component Name: Front spring front bracket (front hanger bracket for front leaf spring)
Material: High-strength ductile iron (QT500-7 grade)
Surface Treatment: Black anti-rust coating (paint or e-coat)
Mounting Type: Bolt-on to chassis side rail and crossmember
Compatible Axle: Front axle
Function: Secures the front end of the front leaf spring to the chassis
Vehicle Position: Left-hand and right-hand sides (order quantity accordingly)

Compatible Vehicle Applications

• SINOTRUK HOWO 70 Mine King (heavy mining dump truck) – front spring mounting

• SINOTRUK Steyr series (91/1491 platform) – front suspension

• SINOTRUK HOWO T7H (heavy-duty tractor and dump truck)

• SINOTRUK HOWO T5G (medium-heavy truck series)

• SINOTRUK Sitrak C7H and C5H (high-end heavy truck series)

Note: Always verify with original part number and chassis VIN before ordering.

Installation & Replacement

• Requires lifting the front axle to unload the leaf spring tension.

• Remove the spring pin or U-bolts as needed, then unbolt the old bracket.

• Clean the frame mounting area before installing the new bracket.

• Torque all mounting bolts to SINOTRUK factory specifications (typically 280-320 Nm for M20 bolts).

• Recommended to inspect the opposite side bracket and replace in pairs if worn.

Packaging & Delivery

Packaging: Heavy-duty wooden crate with foam or plastic wrapping to prevent paint damage
Place of Origin: Shandong, China
MOQ: 1 piece (left or right side)
Payment Terms: T/T, L/C, Western Union, PayPal
Delivery Time: 15-30 working days after order confirmation
Shipping Terms: EXW, FOB Qingdao, CFR, CIF, DDU

Why Choose This Bracket

• OEM factory-direct component from SINOTRUK genuine parts supply chain.

• Cross-compatible across multiple SINOTRUK and Steyr-based models, simplifying inventory.

• Robust casting and precision machining eliminate premature cracking or loose fit.

• Restores original suspension performance and safety on mining and heavy-haul trucks.

Contact Information

Sales Manager: William
Phone / WeChat: +86 19050562894
Email: Sales22@chinatruck.cc
Company: SINOTRUK / CNHTC authorized parts supplier

Limited-Time Offers

• 12-month warranty against casting defects and workmanship

• Free installation torque specification sheet (digital)

• Bulk order discounts for fleet maintenance or repair shops

• Express air freight available for urgent needs

Note: Prices and availability subject to change. Contact Sales22@chinatruck.cc for current pricing and lead time.