283-5239 GEAR-DIFFERENTIAL RING is a heavy-duty alloy steel ring gear designed for Caterpillar differential systems. With 47 spiral bevel teeth and a left-hand spiral direction, it is engineered to work with the mating differential components to transfer drivetrain power efficiently. Its 742.0 mm outside diameter and robust construction make it suitable for the demanding operating conditions of CAT 789-series mining trucks.
| Item | Specification |
|---|---|
| Product Name | GEAR-DIFFERENTIAL RING |
| Part Number | 283-5239 |
| Brand | Caterpillar |
| Machine Model | CAT 789C / 789D / 789B |
| Weight | 141 kg |
| Material | Alloy Steel |
| Condition | Brand New – Genuine |
| Warranty | 6 Months |
| Packaging | Standard Export Carton |
| Availability | Generally in stock |
| Origin | China |
Caterpillar identifies 283-5239 as a differential ring gear used in differential systems to transmit power from the drive shaft to the axle shafts. The official specifications list 47 teeth and a left-hand spiral direction.
The 283-5239 GEAR-DIFFERENTIAL RING is designed for Caterpillar heavy-duty off-highway truck drivetrain applications.
Caterpillar also lists compatibility with the 789 and 789G Off-Highway Truck models. For an exact replacement, customers should confirm the machine serial number and drivetrain configuration before ordering.
The 283-5239 GEAR-DIFFERENTIAL RING is carefully protected for international transportation. Standard export packaging can include reinforced wooden cases or heavy-duty cartons according to the size and weight of the order. Proper internal fixation and moisture-proof protection help reduce the risk of impact, movement and corrosion during transportation.
YLCM provides practical international shipping solutions based on destination, order size and customer requirements:
Our team can coordinate packaging and transportation for individual parts or consolidated machinery-parts orders.
Q1: What is 283-5239?
A: 283-5239 is a Caterpillar Gear-Differential Ring, also known as a differential ring gear or bevel ring gear.
Q2: Which machines use 283-5239?
A: Caterpillar lists the part for 789B, 789C and 789D trucks, as well as 789 and 789G Off-Highway Trucks.
Q3: How many teeth does 283-5239 have?
A: The gear has 47 spiral bevel teeth and is specified with a left-hand spiral direction.
Q4: What material is 283-5239 made from?
A: Caterpillar’s specifications identify the material as alloy steel.
Q5: What are the dimensions of 283-5239?
A: The official specifications list an outside diameter of 742.0 mm, inside diameter of 389.0 mm and height of 96.5 mm.
Q6: Is 283-5239 a complete differential assembly?
A: No. It is the differential ring gear component rather than a complete differential assembly.
Q7: Can YLCM confirm whether this part fits my truck?
A: Yes. Send us the machine model, serial number and current part number. Our technical team can help verify the correct configuration before quotation.
Looking for 283-5239 GEAR DIFF RI for CAT 789C, 789D or 789B?
Send us your required quantity, machine model and serial number. YLCM PARTS can provide availability, quotation and suitable international shipping options for your order.
