

Welcome to this critical breakdown of the FAW On-Board Tools And Accessories kit. This is the complete, OEM-supplied tool and safety package for the FAW Jiefang CA4251P66K24T1A3E5 6×4 diesel semi-trailer tractor. This is not a luxury item; it is a fundamental assembly designed with one core “logic”: driver self-sufficiency. This kit provides the driver with the essential items for roadside safety and, crucially, the heavy-duty tools required for field-expedient repairs, with a major focus on tire service.
The “logic” of the FAW On-Board Tools And Accessories package is to provide a complete “get-you-home” solution. A truck breakdown in a remote area can be catastrophic. This kit contains the 18 essential component types that allow a trained driver to secure the vehicle safely, diagnose the problem, and perform the most common roadside repair: changing a massive tractor tire.
This in-depth guide is a vital resource for drivers, technicians, and fleet managers. We will deconstruct the entire FAW On-Board Tools And Accessories assembly into its Minimum Serviceable Units (MSUs). We will analyze the “Heavy Lifting” group (jack and wheel sockets), the “Basic Repair” group (hand wrenches), the “Fluid & Maintenance” group, and the critical “Roadside Safety” group (triangle, vest, chocks).
This section is the “longer” and most critical part of the FAW On-Board Tools And Accessories kit. These are not standard automotive tools; they are heavy-duty components built to handle the immense scale and torque of a 6×4 tractor.
1. ’20t hydraulic bottle jack’ (3913030-50A): This is the centerpiece of the entire kit. The “logic” of this MSU is power. A standard mechanical jack cannot lift a tractor, which can have an axle load of 10 tons or more. This 20-ton hydraulic jack has the power to safely lift a corner of the laden vehicle, making a tire change possible. It is a critical MSU.
2. ‘Jack handle & extension’ (3916201-50A): These are the necessary MSUs to operate the jack. The “logic” is leverage and reach. This multi-piece handle allows the driver to stand clear of the vehicle and comfortably pump the hydraulic jack, and to reach the jack’s release valve to lower it safely.
3. ’30X33 Wheel socket’ (3916101-50A): This is the second most important MSU in the FAW On-Board Tools And Accessories kit. It is a massive, heavy-wall, deep socket with a 3/4″ or 1″ drive. Its “logic” is to perfectly fit the 30mm or 33mm lug nuts that hold the tractor’s wheels. These nuts are torqued to hundreds of foot-pounds. This socket is made of high-tensile steel (like Cr-V) to withstand that force without cracking.
4. ‘Tire inflation device assy’ (3917010-240): This is a brilliant piece of truck-specific “logic.” This MSU is not a compressor. It’s a high-pressure air hose with a chuck on one end and a standard glad-hand connector on the other. Its “logic” is to allow the driver to use the truck’s *own* onboard air brake system as an air source. A driver can plug this into the “emergency” air tap, start the engine, and re-inflate a repaired or spare tire.
5. Heavy-Duty Sockets (3916104-40A): The kit also includes ’30mm’ and ’41mm Steel spring U-bolt sockets’. The “logic” of these tools is for emergency chassis/suspension work. U-bolts are what hold the axles to the leaf springs. A loose U-bolt is a vehicle-down, high-danger event. These sockets, combined with a large breaker bar (often part of the jack handle), allow a driver to re-torque these critical fasteners in the field.
This group of MSUs from the FAW On-Board Tools And Accessories kit provides the driver with a basic set of hand tools for general repairs and inspections.
Standard Wrenches: The kit includes four (4) ‘Double-head wrenches’ (3901301-01, etc.). These provide eight common sizes (8, 10, 11, 13, 16, 18, 21, 24mm). The “logic” here is to cover the most common fasteners on the truck for hose clamps, brackets, and minor components.
‘Adjustable wrench’ (3915010-01): This is the “one-size-fits-all” logic. For any odd-sized bolts or plumbing fittings that the double-head wrenches don’t cover, this tool is the backup.
General Tools: The ‘Multifunctional pliers’ (3901510-50A) provide gripping and cutting logic. The ‘Dual-use screwdriver’ (3901680-A1) is a critical MSU with a “logic” of space-saving; it has a reversible shaft with a Phillips head on one end and a flat head on the other, covering 90% of all screws on the vehicle.
Specialized Wrenches: The ‘Torx wrenches’ (3916011-01A1, 3916013-01A1) are included because modern FAW trucks use Torx (star-shaped) fasteners in high-torque applications where a standard hex bolt might strip. These MSUs are essential for working on newer components.
This group of the FAW On-Board Tools And Accessories kit is focused on simple but critical fluid and electrical maintenance.
‘Sleeve-type filter wrench’ (3916115-8E): This is a vital MSU. Its “logic” is to allow the driver to remove and replace a spin-on fuel filter. A clogged fuel filter is a common cause of engine power loss. This tool empowers the driver to fix the problem and continue their route, saving a tow bill.
‘Urea filling pipe’ (1160011-71U): This is a simple but critical plastic pipe. Its “logic” is safety and contamination prevention. Diesel Exhaust Fluid (DEF/AdBlue/Urea) is corrosive. This pipe allows the driver to refill the DEF tank from a jug without spilling it on the truck’s paint or, more importantly, the electrical harnesses.
‘Fuse puller’ (2806015-22A): A small, non-conductive plastic clip. Its “logic” is electrical safety, allowing the driver to remove a blown fuse from the fuse box without using metal pliers (which would cause a dangerous short circuit) or their fingers.
This final group from the FAW On-Board Tools And Accessories package has a simple “logic”: protect the driver and the vehicle from other traffic.
Visibility Tools: The ‘Reflective vest assy’ (3916630-2001) is an MSU for personal safety, making the driver highly visible. The ‘Warning triangle assy’ (3900020-V02) is the MSU for vehicle safety, designed to be placed 50-100 meters behind the truck to warn oncoming traffic of the hazard.
Securing Tools: The ’53mm Stop block’ (3916610-2001-C00), also known as a wheel chock, is a critical safety MSU. The “logic” is to *prevent* the truck from rolling *before* the driver uses the 20t jack. Jacking a 6×4 tractor without chocking the wheels is extremely dangerous. The kit includes two of these.
Storage: The ‘On-board toolbox’ (3916120-50A) and ‘Multi-purpose set’ (3916303-271) are the MSUs that keep all these other components organized and secure, preventing them from becoming projectiles in the cab during a sudden stop.
The following table provides the complete, detailed breakdown of all 18 component types identified in the FAW On-Board Tools And Accessories kit for the FAW CA4251P66K24T1A3E5 tractor.
| Mark | Part No. | Part Name | Quantity |
|---|---|---|---|
| 1 | 3901301-01 | 8×10 Double-head wrench | 1 |
| 3901303-01 | 11×13 Double-head wrench | 1 | |
| 3901307-01 | 16×18 Double-head wrench | 1 | |
| 3901311-01 | 21×24 Double-head wrench | 1 | |
| 2 | 3901510-50A | Multifunctional pliers assy (see drawing) | 1 |
| 3 | 3901680-A1 | Dual-use screwdriver assy | 1 |
| 4 | 3915010-01 | Adjustable wrench assy (see drawing) | 1 |
| 5 | 3916011-01A1 | 13X16 Torx wrench | 1 |
| 3916013-01A1 | 18X21 Torx wrench | 1 | |
| 6 | 3916104-40A | 30mm Steel spring U-bolt socket | 1 |
| 3916104-70A | 41mm Steel spring U-bolt socket | 1 | |
| 7 | 3916115-8E | Sleeve-type filter wrench | 1 |
| 8 | 3916120-50A | On-board toolbox | 1 |
| 9 | 3916101-50A | 30X33 Wheel socket | 1 |
| 10 | 3916201-50A | Jack handle & extension | 1 |
| 11 | 3916303-271 | Multi-purpose set | 1 |
| 12 | 3917010-240 | Tire inflation device assy | 1 |
| 13 | 3913030-50A | 20t hydraulic bottle jack assy | 1 |
| 14 | 3916630-2001 | Reflective vest assy (see drawing) | 1 |
| 15 | 3900020-V02 | Warning triangle assy | 1 |
| 16 | 1160011-71U | Urea filling pipe (see drawing) | 1 |
| 17 | 2806015-22A | Fuse puller | 1 |
| 18 | 3916610-2001-C00 | 53mm Stop block assy | 2 |
The specifications for the FAW On-Board Tools And Accessories kit are defined by its function as a complete roadside safety and self-sufficiency solution. All components are MSUs designed for durability and field service.
| Vehicle Application | FAW Jiefang CA4251P66K24T1A3E5 6×4 Tractor |
| Component Group | FAW On-Board Tools And Accessories |
| Total Component Types | 18 |
| Core Logic | Driver Self-Sufficiency, Roadside Safety, Field Repair |
| Key MSU (Lifting) | ’20t hydraulic bottle jack assy’ (3913030-50A) |
| Key MSU (Tire) | ’30X33 Wheel socket’ (3916101-50A) |
| Key MSU (Air) | ‘Tire inflation device assy’ (3917010-240) |
| Key MSUs (Safety) | ‘Warning triangle’ (3900020-V02), ‘Reflective vest’ (3916630-2001) |
| Key MSUs (Securing) | 2x ’53mm Stop block assy’ (3916610-2001-C00) |
| Key MSU (Maint.) | ‘Sleeve-type filter wrench’ (3916115-8E) |
| Storage | ‘On-board toolbox’ (3916120-50A) |
FAW parts, including the Cylinder Block Assembly, are packaged with care to ensure safe delivery. Each component is secured in protective materials to prevent damage during transit. The logistics network guarantees timely shipments worldwide, supporting efficient maintenance operations. Below is an image illustrating the standard packaging for FAW truck parts, showcasing the attention to detail in handling and storage.
This packaging approach minimizes the risk of corrosion or impact damage, ensuring that parts like the FAW Cylinder Block Assembly arrive in perfect condition. Customers can rely on FAW’s logistics for consistent quality and reliability.