Shandong Shengyue Technology Development Co.,Ltd is one of the most professional sinotruk howo 90# fifth wheel assembly wg9130939100 manufacturers and suppliers in China. Please feel free to buy high quality genuine auto parts at competitive price from our factory.
SINOTRUK HOWO 90# Fifth Wheel Assembly WG9130939100
Detailed Physical Dimensions & Technical Load Specs
| Technical / Physical Item | Official Standard Data & Metrics | Workshop Modification & Logistics Reference |
|---|---|---|
| Matched Kingpin Specification | 90# (Nominal Diameter: 90 mm / 3.5 inches) | Specially designed for heavy-duty, mining, and oversized heavy-haul semi-trailers; not compatible with 50# (2-inch) light-duty kingpins. |
| Fifth Wheel Rated Height | Approx. 150 mm - 170 mm (Excluding the height-extension sub-frame/mounting plate) | Directly determines the front ground clearance of the semi-trailer and the overall vehicle height after coupling. |
| Vertical Static Load Capacity | 20,000 kg - 28,000 kg (20 - 28 Tons) | The maximum recommended downward vertical weight that the truck chassis frame rails can safely sustain. |
| Gross Combination Weight (GCW) | Design Upper Limit: 60,000 kg - 120,000 kg (60 - 120 Tons) | Engineered to support single or dual-drive heavy trucks pulling heavy-duty lowboys, multi-axle dumper trailers, or mining tippers. |
| Assembly Dry Net Weight | Approx. 135 kg - 150 kg (Depending on whether the heavy-duty mounting base plate is included) | Solid forged-steel structural component; must be lifted using an overhead crane or hoist during workshop installation. |
Core Locking & Safety Mechanisms
| Component Name | Recommended Qty | Critical Technical Specs / Assembly Reqs | Remarks |
|---|---|---|---|
| Fifth Wheel Main Top Plate | 1 Pc | Genuine SINOTRUK WG9130939100 (High-tensile forged steel) | Main load-bearing top plate. Replace if cracked, severely deformed, or worn thinner than safety limits. |
| Lock Jaw (Horseshoe Ring) | 1 Pc | Forged chrome-molybdenum alloy steel (Core Rebuild Component) | The primary component that locks onto the trailer's 90# kingpin [sinotrukhowo.cn]. Must be replaced if edge wear exceeds 1 mm. |
| Lock Jaw Pivot Pin (Center Pin) | 1 Pc | High-hardness quenched and tempered steel | The pivot axis for lock jaw rotation; requires proper lubrication during assembly. |
| Wedge Lock (Lock Tongue Assy) | 1 Pc | High-frequency induction hardened surface | Secondary safety engagement block that prevents the lock jaw from flipping open. |
| Operating Handle (Release Lever) | 1 Pc | Stamped steel with integrated dual-stage safety pin slot | Manual lever pulled by the driver to unlock and decouple the semi-trailer. |
| Lever Dual Recovery Springs | 1 Set | High fatigue-resistance spring steel | Ensures instantaneous crisp locking closure to prevent false locking due to spring fatigue. |
Pivot Brackets & Cushioning Rubber
| Component Name | Recommended Qty | Critical Technical Specs / Assembly Reqs | Remarks |
|---|---|---|---|
| Left / Right Pivot Brackets (Legs) | 2 Pcs | Rigid stamped or cast steel housing | Structural legs connecting the top plate to the chassis mounting base plate. |
| Pivot Pins (Oscillating Shafts) | 2 Pcs | Hardened surface with standard surface roughness | Allows longitudinal pitching of the top plate to absorb site road unevenness. |
| Bracket Anti-vibration Cushions | 2 Pcs | High-density vulcanized rubber / Polyurethane (Mandatory) | Embedded between the legs and top plate to absorb severe pushing/pulling forces from the trailer. |
DETAILS
| DESCRIPTION | 90# Fifth Wheel Assembly | PART NUMBER | WG9130939100 |
| WEIGHT | 150kg | VOLUME | 920 × 900 × 170 mm |
| TRUCK MOLDE | SINOTRUK | QUALITY | Copy,High Copy, OEM,Original |
| MOQ | 1 | WARRANTY | 1 year |
| PAYMENT | TT/WESTEN UNION | SHIPMENT | by air/sea/railway |
| BRAND | SINOSACHS | PLACE OF ORIGIN | JINAN CITY,CHINA |
| STOCK | IN STOCK | APPLICABLE SITE | CHASSIS |
| PACKAGE | Carton/Woodenbox | PORT OF LANDING | Qingdao Port,China |
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