7I-5878 Differential Housing is a heavy-duty drivetrain component designed for Caterpillar 789-series off-highway trucks. Its rigid housing structure provides a secure enclosure for the differential mechanism while supporting the connection between the differential and related axle or propeller-shaft components. Designed for demanding haul truck applications, it helps maintain reliable torque transfer and differential operation under high-load mining conditions.
| Item | Specification |
|---|---|
| Product Name | Differential Housing |
| Part Number | 7I-5878 |
| Brand | Caterpillar (CAT) |
| Machine Model | CAT 789C, 789D, 789B |
| Weight | 90 kg |
| Material | Heavy-Duty Metal Construction |
| Condition | Brand New – Genuine |
| Warranty | 6 Months |
| Packaging | Standard Export Carton |
| Availability | Generally in stock |
| Origin | China |
The 7I-5878 Differential Housing is officially listed by Caterpillar for CAT 789C, 789D and 789B trucks. Cat also lists the part for additional 789-series off-highway truck applications, including 789G and 789.
The housing forms the central enclosure for the differential mechanism. According to Cat, it consists of a main housing and a flange half, with the flange section providing connection to other drivetrain components such as axle shafts or propeller shafts.
For accurate fitment, customers should provide the machine serial number before ordering, as drivetrain configurations may vary between machines.
The 7I-5878 is particularly suitable for heavy-duty mining truck drivetrain maintenance, where differential housings are exposed to high torque, vibration, impact and continuous operating loads.
YLCM PARTS uses secure export packaging to protect heavy drivetrain components during international transportation. The 7I-5878 can be packed with protective cushioning and moisture-proof protection inside suitable export packaging. For this type of large and heavy component, reinforced wooden cases can be arranged to provide additional protection during loading, unloading and transportation.
We provide flexible international logistics solutions according to destination, order quantity and customer requirements:
Q1: What is 7I-5878?
A: 7I-5878 is a Caterpillar Differential Housing used to contain and support the differential mechanism.
Q2: Which machines use 7I-5878?
A: Cat officially lists the part for 789C, 789D and 789B, with additional applications including 789G and 789.
Q3: What is the function of the differential housing?
A: It provides a rigid enclosure for the differential gears and connects the differential assembly with related drivetrain components, supporting torque transfer and differential action.
Q4: Is 7I-5878 a complete differential assembly?
A: No. It is the differential housing, not a complete differential assembly. Internal gears, bearings, seals and other components are separate parts.
Q5: What type of equipment uses this housing?
A: It is designed for Caterpillar off-highway and mining truck drivetrain applications, particularly the 789-series trucks.
Q6: Can YLCM verify compatibility?
A: Yes. Send us your CAT machine model and serial number, and our technical team can help verify the correct application before shipment.
Q7: What warranty does YLCM provide?
A: The standard warranty for this product is 6 months.
Looking for a 7I-5878 Differential Housing for CAT 789C, 789D or 789B? Send YLCM PARTS your required quantity and machine serial number. We can help confirm compatibility, provide a quotation and arrange reliable international delivery.
