FAW J6P Tire Assembly: Deconstructing 17 Critical Parts for Flawless Load-Bearing

This is a complete technical guide to the FAW J6P Tire Assembly, specified for the FAW Jiefang CA3250P66K2L1T1E 6×4 dump truck. This deconstruction details the 17 serviceable component types that constitute the complete FAW J6P Tire Assembly, including both heavy-duty and standard variants.

The FAW J6P Tire Assembly is the complete, serviceable unit that includes the steel wheel, the outer tire, the inner tube, and the protective flap. For a heavy-duty dump truck, this assembly is the critical interface between the vehicle and the ground, responsible for supporting the entire gross vehicle weight and transferring all acceleration and braking forces. This deconstruction analyzes the two main variants of the FAW J6P Tire Assembly: the 8.8-20 Heavy-Duty version (3101010AJ6P) and the 8.5-20 standard version (3101010-93WJ). Understanding the components of the FAW J6P Tire Assembly, especially the multi-piece rim design and the 18-ply rated tires, is essential for vehicle safety, load capacity, and maintenance.

Core 1: The “Tire & Tube” Logic (The Pneumatic Components)

This group of components is the core of the FAW J6P Tire Assembly. It is a “tube-type” system designed for heavy-duty, multi-piece rims, prioritizing load capacity and field serviceability over a tubeless setup.

1. Component: ‘Outer tire-12.00R20 18PR’ (3106010A174) – Qty 11 (Total)
This (Comp 2) is the main tire. The 12.00R20 designation means it is 12 inches wide, designed for a 20-inch rim, and is of Radial construction. The 18PR (18-ply rating) is the most critical specification, signifying an extremely strong, high-load-capacity tire with reinforced sidewalls, essential for a dump truck. This is the literal footprint of the FAW J6P Tire Assembly.

2. Component: ‘Inner tube-12.00R20 18PR’ – Qty 11 (Total)
This (Comp 3) is the inflatable bladder that holds the compressed air. As the multi-piece rims are not airtight, this inner tube is a mandatory component for every FAW J6P Tire Assembly. A high-quality, heavy-duty tube is required to match the 18-ply rating of the outer tire and withstand the high pressures and heat.

3. Component: ‘Flap-12.00R20 18PR’ – Qty 11 (Total)
This (Comp 4) is a thick rubber ‘flap’ or ‘liner’ that sits inside the rim. The Tube Protection Logic is critical. This flap protects the inner tube (Comp 3) from being chafed or punctured by the steel rim, the valve stem hole, and the ‘Elastic lock ring’ (Comp 5). A missing or damaged flap is a primary cause of tube failure in the FAW J6P Tire Assembly.

Core 2: The “Heavy-Duty Wheel” Logic (3101015AJ6P)

This group represents the heavy-duty steel wheel (Comp 1) for the FAW J6P Tire Assembly, designed for the tandem drive axles.

1. Component: ‘8.8-20 Heavy-duty wheel rim & disc assy’ (3101015AJ6P) – Qty 8
This (Comp 1, left table) is the core of the heavy-duty FAW J6P Tire Assembly. The 8.8-20 designation indicates a reinforced rim, 8.8 inches wide, to provide a stable base for the 12-inch wide tire. The “AJ6P” part number signifies its specific, reinforced design, making it the preferred FAW J6P Tire Assembly for the drive axles.

2. Component: ‘Elastic lock ring-8.50-20 wheel’ (3101027-J6P) – Qty 8
This (Comp 5, left table) is the specific ‘J6P’ model lock ring. This Multi-Piece Rim Logic is standard for heavy-duty truck rims. This split steel ring locks the tire bead onto the rim, allowing for field service. This is a critical safety component of the FAW J6P Tire Assembly.

Core 3: The “Standard Wheel” Logic (3101015-93W)

This group represents the standard FAW J6P Tire Assembly (Qty 3), often used for the front steer axle or as the spare. The BOM shows this as a deconstructed, serviceable assembly.

1. Component: ‘8.5-20 Wheel rim & disc assy’ (3101015-93W) – Qty 3
This (Comp 1, right table) is the complete standard wheel, which is composed of sub-parts.

2. Component: ‘Rim body-8.5-20 wheel’ (3101021-93W) & ‘Wheel disc-8.5-20 wheel’ (3101036-93W)
These (Comp 1 sub-parts) are the two main pieces of the standard FAW J6P Tire Assembly wheel. The Two-Piece Logic shows the outer ‘Rim body’ (where the tire sits) and the inner ‘Wheel disc’ (which bolts to the hub) are manufactured separately and welded together. This contrasts with the ‘AJ6P’ model, which is listed as a single heavy-duty unit.

3. Component: ‘8.5-20 Valve stem’ (3101016-174) & ‘Elastic lock ring’ (3101027-174)
This (Comp 1 sub-part, Comp 5) are the serviceable items for the standard FAW J6P Tire Assembly. The ‘Valve stem’ is the air valve, and the ‘Elastic lock ring’ is the standard (non-J6P) lock ring for this 8.5-inch rim.

Core 4: The “Dynamic Balancing” Logic (The Balance Weights)

This final group is essential for a smooth ride. An unbalanced FAW J6P Tire Assembly will cause severe, destructive vibrations at speed.

1. Component: ‘Wheel balance weight assy’ (3101050-174, etc.) – Qty As Req.
This (Comp 6 left, Comp 6 right) is a set of ‘As Required’ weights. The BOM lists multiple variants (3101055, 3101060, 3101065, 3101070) which correspond to different gram-weights.

The Balancing Logic is that after a new FAW J6P Tire Assembly is put together, it is placed on a dynamic balancing machine. The machine identifies ‘heavy spots’. A technician then clips these lead or steel weights onto the opposite side of the rim flange to counteract the imbalance. This is a critical final step in servicing any FAW J6P Tire Assembly. Given the size and weight of a 12.00R20 18PR tire, significant weight is often required.

FAW J6P Tire Assembly: Complete 17-Part Breakdown

The following table provides the complete, detailed breakdown of all 17 unique component types for the FAW J6P Tire Assembly on the FAW Jiefang CA3250P66K2L1T1E 6×4 dump truck. This list covers both the heavy-duty (AJ6P) and standard (93WJ) variants.

Core Specifications

The specifications for the FAW J6P Tire Assembly are defined by its heavy-duty, multi-piece construction and high-load-rated tires, built for the CA3250P66K2L1T1E dump truck. A FAW J6P Tire Assembly must be correctly assembled for safety.