Overview
Within the complex architecture of a heavy-duty ZF transmission, the ZF 1316.332.140 PLANET SHAFT serves as a critical load-bearing component inside the planetary gear set. This OEM genuine part transmits rotational torque from the sun gear to the planetary carrier, ensuring synchronized power distribution across the gear train. The SKU 1316.332.140 is precision-machined to maintain exacting clearances, preventing axial play that can degrade shift quality. Designed for construction machinery subjected to high cyclic loads, this shaft supports the planet gears while withstanding extreme shear forces and thermal expansion. Replacing a worn unit with this genuine OEM component restores the transmission’s original torque capacity and eliminates drivetrain inefficiencies.
Symptoms of Failure
When the 1316.332.140 planet shaft deteriorates, operators will notice distinct mechanical distress signals. Early detection prevents catastrophic gearbox damage.
- Erratic gear engagement under load: A worn shaft surface allows planet gears to wobble, causing delayed or harsh shifting when the machine is under heavy strain.
- Metallic grinding noise from the transmission housing: As the shaft surface wears, metal-on-metal contact between the planet gear bore and the shaft produces a distinct low-frequency growl during acceleration.
- Contaminated transmission fluid with bronze or steel particles: Flaking material from the shaft’s hardened surface circulates through the hydraulic system, visible as glitter in the oil filter or drain pan.
- Reduced power transfer to the wheels or drum: Slippage occurs when the planet gear cannot maintain proper mesh with the ring gear, leading to a 15-20% loss in tractive effort during grading or excavation.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number / SKU | 1316.332.140 |
| Overall Length | 142.5 mm |
| Outer Diameter (Bearing Surface) | 32.00 mm |
| Material Grade | Case-hardened 20MnCr5 alloy steel |
| Surface Hardness | 58-62 HRC (Rockwell C) |
| Net Weight | 0.84 kg |
| OEM Reference | ZF 1316.332.140 (Genuine) |
Compatibility
This genuine ZF 1316.332.140 planet shaft is engineered for integration into specific ZF planetary gearbox families used in construction machinery. Based on its dimensional profile and spline configuration, it is compatible with the following transmission models:
- ZF WG180 — 6-speed powershift transmission (used in wheel loaders and graders)
- ZF WG200 — Heavy-duty variant for excavator carriers and dozers
- ZF 4WG-200 — Four-speed version with integrated torque converter
- ZF 6WG-250 — High-torque planetary series for mining trucks
Note: Always verify the transmission serial number and planetary carrier bore diameter before installation. This shaft is not interchangeable with the 1316.332.130 variant.
