

Welcome to this critical, in-depth guide on the Conjunto de carcasa de transmisión FAW, la estructura completa “esqueleto” for the gearbox in the FAW Jiefang CA4251P66K24T1A3E5 6×4 tractor semirremolque diésel. This is the foundation upon which the entire transmission is built.
El Conjunto de carcasa de transmisión FAW no es una sola parte, but a set of precision-machined casings, including the ‘Front housing’ (1701015-A9P) and ‘Mid-housing’ (1701035-A9P). Its function is to contain the gear oil, protect all internal gears and shafts, and provide rigid mounting points to the engine and chassis.
This guide is an essential resource for professional transmission rebuilders, tecnicos de flota, y gerentes de repuestos. Deconstruiremos todo Conjunto de carcasa de transmisión FAW en su 37 componentes reparables, including every cover, enchufar, empaquetadora, and fastener required for a complete overhaul.
El Conjunto de carcasa de transmisión FAW es un “two-piece” o “split-case” diseño, consisting of two main structural components.
**1. Carcasa delantera (1701015-A9P):** This is the ‘Front housing with steel wire sleeve assy’. Este es el “bell housing” section of the Conjunto de carcasa de transmisión FAW. Its primary function is to connect the entire gearbox to the back of the engine’s flywheel housing. It also contains the clutch release mechanism (fork and bearing). El “steel wire sleeve” (P.EJ., Helicoil) designation is a high-quality feature, indicating that the aluminum casting has been reinforced with steel thread inserts for the high-torque mounting bolts, preventing stripping and ensuring durability.
**2. Mid-Housing (1701035-A9P):** This is the ‘Mid-housing with steel wire sleeve assy’. Este es el principal “caja de cambios,” the largest part of the Conjunto de carcasa de transmisión FAW. This heavily-ribbed casting (likely aluminum for light weight and heat dissipation) es el “esqueleto” that holds all the critical, torque-bearing shafts: the main shaft, the counter-shaft, and the reverse idler shaft. Su interno, precision-bored “saddles” are where the main shaft bearings are seated.
These two halves of the Conjunto de carcasa de transmisión FAW are located with ‘Dowel pins’ (1701052-A9P, 1701037-A2K) and bolted together with numerous high-tensile ‘Hex flange bolts’ (Q1840820S, Q1841030S, etc.) to form a single, rígido, leak-proof unit.
El Conjunto de carcasa de transmisión FAW is designed for serviceability. This is evident from its multiple access covers. The ‘Cover – upper left’ (1701037-A9P) and ‘Cover – abajo a la derecha’ (1701043-A9P) son “engranaje loco” covers. They seal the large holes in the casing that are necessary for the factory to assemble the counter-shaft and idler gear clusters. These covers are sealed with gaskets and secured with ‘Hex flange bolts’ (Q1841060S, Q1841065S).
Además, the ‘Front housing’ (bell housing) features a ‘Cover – outer observation hole’ (1601042-A2K), which is sealed by a ‘Gasket’ (1601041-A2K). este pequeño, removable plate is the “clutch inspection cover.” It allows a technician to use a light and a mirror to inspect the condition of the clutch friction disc, the pressure plate, and the release bearing, without having to remove the entire transmission. This is a critical diagnostic feature of the Conjunto de carcasa de transmisión FAW.
El Conjunto de carcasa de transmisión FAW is also a “sumidero” that holds several gallons of heavy-duty gear oil. This parts list details all the service points for this fluid.
**1. Filler Plugs:** El 'tapón de llenado de aceite’ (1701042-A2K) es el principal “llenar” puerto, located high on the side of the Conjunto de carcasa de transmisión FAW. The transmission is filled until oil begins to weep from this hole, which is how the correct level is set.
**2. Tapón de drenaje:** The ‘Drain plug assy’ (1701765-A2K) is the service point for removing the old oil. This plug is located at the absolute lowest point of the Conjunto de carcasa de transmisión FAW. It is magnetic, designed to trap microscopic metal particles and provide a visual “health check” of the internal gears during an oil change. It is sealed with a ‘Gasket-plug, drenar’ (1701042-A2K… *Correction*: 1701042-A2K is listed as filler plug and gasket, likely a typo in list, should be drain plug gasket 1701765-A2K’s sub-part).
**3. Oil Sump:** The ‘Oil sump assembly’ (1701025-A9P) is a bolted-on component at the bottom of the Conjunto de carcasa de transmisión FAW. This acts as the main oil reservoir, ensuring the oil pump pickup is always submerged.
La función más crítica del Conjunto de carcasa de transmisión FAW is to hold the input, principal, and counter shafts in perfect, parallel alignment under thousands of pound-feet of torque. This is achieved by several key components.
The ‘End cap – intermediate shaft front bearing’ (1701028-A9P) is a heavy-duty cap that bolts to the front of the main housing, securing the “pocket bearing” of the counter-shaft. Similarmente, the ‘Cover – cojinete trasero del primer eje’ (1701141-A7G) y su 'Junta’ (1701142-A7G) seal and secure the main bearing on the transmission’s output shaft.
Este Conjunto de carcasa de transmisión FAW also provides the mounting points for the shift-fork shafts. The ‘Bushing-shift fork shaft’ (1701013-A9P) and ‘Bushing-reverse idler shaft’ (1701014-A9P) son los “tener puesto” surfaces. These bronze bushings are pressed into the case, providing a low-friction, replaceable surface for the hardened steel shift shafts to slide in.
La siguiente tabla proporciona la información completa, desglose detallado de todos 37 components for the Conjunto de carcasa de transmisión FAW.
| Marca | Número de pieza. | Nombre de la pieza | Cantidad |
|---|---|---|---|
| 1 | 1701035-A9P | Mid-housing with steel wire sleeve assy | 1 |
| 2 | Q1840820S | Perno de brida hexagonal, varilla gruesa (Tipo estándar) | 8 |
| 3 | 1701037-A9P | Cubrir – upper left | 1 |
| 4 | 1701052-A9P | Dowel pin-sub housing | 2 |
| 5 | 1701042-A2K | Gasket-plug, drenar | 1 |
| 6 | 1701041-A2K | Tapón de llenado de aceite | 1 |
| 7 | 1701765-A2K | Drain plug assy | 1 |
| 8 | Q214046 | Cross head screw | 1 |
| 9 | 1701046-A9P | Placa de identificación de transmisión | 1 |
| 10 | 1701025-A9P | Oil sump assembly | 1 |
| 11 | CQ1500825 | Perno de cabeza hexagonal | 2 |
| 12 | 1701037-A2K | Pasador | 2 |
| 13 | Q18410110S | Perno de brida hexagonal, varilla gruesa (Tipo estándar) | 4 |
| 14 | 1701028-A9P | End cap – intermediate shaft front bearing | 1 |
| 15 | Q1841030S | Perno de brida hexagonal, varilla gruesa (Tipo estándar) | 4 |
| 16 | 1701142-A7G | Empaquetadora – first shaft bearing cap | 1 |
| 17 | 1701141-A7G | Cubrir – cojinete trasero del primer eje | 1 |
| 18 | Q1841030S | Perno de brida hexagonal, varilla gruesa (Tipo estándar) | 6 |
| 19 | Q1841030S | Perno de brida hexagonal, varilla gruesa (Tipo estándar) | 4 |
| 20 | 1701028-A9P | End cap – intermediate shaft front bearing | 1 |
| 21 | 1701015-A9P | Front housing with steel wire sleeve assy | 1 |
| 22 | 1601041-A2K | Empaquetadora – outer observation hole cover | 1 |
| 23 | 1601042-A2K | Cubrir – outer observation hole | 1 |
| 24 | Q40306 | junta de resorte | 2 |
| 25 | CQ1500616 | Perno de cabeza hexagonal | 2 |
| 26 | 1701013-A9P | Eje de bifurcación de buje | 7 |
| 27 | Q1840820S | Perno de brida hexagonal, varilla gruesa (Tipo estándar) | 8 |
| 28 | 1701043-A9P | Cubrir – abajo a la derecha | 1 |
| 29 | Q1841065S | Perno de brida hexagonal, varilla gruesa (Tipo estándar) | 1 |
| 30 | Q1841060S | Perno de brida hexagonal, varilla gruesa (Tipo estándar) | 20 |
| 31 | 1701047-A9P | Placa de identificación de transmisión | 1 |
| 32 | 1701711-A2K | Lifting eye | 1 |
| 33 | Q2140610 | Cross head screw | 4 |
| 34 | CQ1211640 | Perno | 3 |
| 35 | Q40316 | junta de resorte | 3 |
| 36 | CQ34116 | Nuez hexagonal | 3 |
| 37 | 1701014-A9P | Bushing-reverse idler shaft | 1 |
Las especificaciones para el Conjunto de carcasa de transmisión FAW are defined by its function as the structural, precision-machined skeleton for a heavy-duty manual transmission. todo el Conjunto de carcasa de transmisión FAW is built for durability.
| Solicitud de vehículo | FAW Jiefang CA4251P66K24T1A3E5 6×4 Tractor |
| Grupo de componentes | Conjunto de carcasa de transmisión FAW |
| Tipo de vivienda | De dos piezas (Split-Case) Diseño |
| Carcasa delantera (Bell Housing) | 1incógnita (Número de pieza. 1701015-A9P) |
| Vivienda principal (Mid-Case) | 1incógnita (Número de pieza. 1701035-A9P) |
| Material (Típico) | Cast Aluminum (with Steel Wire Thread Inserts) |
| Service Points | Enchufe de llenado de aceite (1701041-A2K), Tapón de drenaje (1701765-A2K) |
| Inspection Port | 1x Clutch Observation Cover (1601042-A2K) |
| Shift Shaft Mounts | Bronze Bushings (1701013-A9P, 1701014-A9P) | Tipo
| Función primaria | To house, proteger, and lubricate all transmission gears and shafts, and to ensure their perfect alignment. |
piezas FAW, incluido el conjunto del bloque de cilindros, Se empaquetan con cuidado para garantizar una entrega segura.. Cada componente está asegurado con materiales protectores para evitar daños durante el transporte.. La red logística garantiza envíos puntuales en todo el mundo., apoyando operaciones de mantenimiento eficientes. A continuación se muestra una imagen que ilustra el embalaje estándar de las piezas de camiones FAW., mostrando la atención al detalle en el manejo y almacenamiento.
Este enfoque de embalaje minimiza el riesgo de corrosión o daños por impacto., asegurando que piezas como el conjunto de bloque de cilindros FAW lleguen en perfectas condiciones. Los clientes pueden confiar en la logística de FAW para obtener calidad y confiabilidad constantes.