4143.316.085 / 4472.348.094 Bevel Gear Set for Cat M315F, M317F, M318F

   The 4143.316.085 / 4472.348.094 is a matched gear set designed to provide the final gear reduction in the axle. The pinion (4472.348.094) and the crown wheel (4143.316.085) are manufactured using high-grade alloy steel and undergo specialized heat treatment to handle the massive shock loads during heavy excavation and the high-speed rotations of road travel. Being a matched set, these gears are honed together to ensure perfect tooth contact, reducing the risk of premature wear and noise.

The SPARKLING MACHINERY NEW 4143.316.085 / 4472.348.094 Bevel Gear Set Photo:

Why Choose the SPARKLING 4143.316.085 / 4472.348.094 Bevel Gear Set?

• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •    - Matched Pair Precision: The crown and pinion are factory-lapped to ensure an ideal contact pattern, maximizing gear life and reducing mechanical "hum."

                                                                •    - High Shock Resistance: Engineered to withstand the sudden torque spikes that occur when the machine transitions from digging to traveling.

                                                                •    - Optimized Lubrication Flow: Tooth geometry is designed to facilitate oil flow, keeping temperatures low during long-distance roading.

                                                                •    - Direct F-Series Fit: Specifically designed for the axle assemblies of modern Caterpillar M300-series wheeled excavators.

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                                          • Compatible Cat Wheeled Excavator Models

                                            This gear set is found in the front and rear differentials of the following models:

                                            Machine Model	Category	Engine Model
                                            M315F	Wheeled Excavator	Cat C4.4 ACERT
                                            M317F	Wheeled Excavator	Cat C4.4 ACERT
                                            M318F	Wheeled Excavator	Cat C7.1 ACERT
                                            MH3022	Material Handler	Cat C7.1 ACERT

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Q&A Section

Q1: Why must I replace these two part numbers as a set?

A: Gear sets of this type are manufactured with a specific "backlash" and contact profile unique to that specific pair. If you mix a new pinion with an old crown wheel, they will not mesh correctly, leading to rapid tooth chipping, extreme heat, and total axle failure within a few hours of operation.

Q2: What is the most common cause of failure for the 4143.316.085 set?

A: Failure is usually caused by contaminated axle oil (metal particles or water) or improper bearing preload. If the pinion bearings become loose, the gear mesh changes, which quickly destroys the hardened surface of the teeth.

Q3: Does this set include the mounting bolts or shims?

A: Typically, the set includes only the crown wheel and the pinion. Because shimming is required to set the correct gear depth and backlash, it is recommended to purchase a separate shim kit and new crown wheel bolts during the rebuild.

About SPARKLING MACHINERY:
   - Founded in 2013, SPARKLING focuses on high-quality excavator parts across hydraulics, undercarriage, engines and electrical systems. We prioritize stability, precision and continuous service, offering worldwide distribution, tailored solutions and strict QC to help customers reduce cost and increase uptime.

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