CASE CX31B CX35 CX35B CX36B CX39B Final Drive Unit 72280157 PX15V00027F1 47043513 Excavator Travel Motor

72280157 PX15V00027F1 Final Drive for CASE CX31B CX35B CX36B CX39B | Travel Motor (18-Hole 204mm)
Heavy 4200 N·m Torque & 18-Bolt High-Shear Flange for 3.0–4.0T CASE Earthmovers. Direct OEM replacement TM04 dual-displacement hydraulic travel motor complete with 52.7:1 planetary reduction gearbox, engineered specifically for 18-hole 204mm register CASE CX31B, CX35, CX35B, CX36B, and CX39B mini excavators.

1. Technical Operating Specifications
(Authority verified via CASE CNH EPC parts catalogs & compact hydraulic databases)

2. CASE OEM Part Number & Model Cross-Reference
(Universal-fit TM04 assembly matching specific CASE model designations)

• CASE CX31B: 72280157, PX15V00027F1
• CASE CX35: 47043513
• CASE CX35B: 72280157
• CASE CX36B: 72280157, PX15V00027F1
• CASE CX39B: 72280157

3. Verified Undercarriage Fitment Dimensions
(Precision measurements for CASE 18-bolt reinforced track frames)

4. Resolving CASE CX-B Breaker Vibration & Flange Bolt Shear
Dealing with loose sprocket bolts during hydraulic hammer operation or track lag on steep climbs? CASE CX-B excavators utilize a heavy-duty 18-bolt mounting interface specifically designed to absorb high-frequency recoil from hydraulic breakers and rock rippers. Attempting to fit generic 9-hole drives concentrates shear force, quickly snapping fasteners and wallowing out the track frame. Over high hours, internal bypass across worn piston slippers drops low-gear breakout force below the required 4200 N·m threshold. Installing our precision-machined 72280157 final drive guarantees 100% 18-bolt clamping alignment, eliminates breaker shock deflection, and restores factory 52.7:1 gradeability.

5. Frequently Asked Questions (Technical & Commercial)

For Machine Owners & Operators (C-End Insights)
Q: Why does my CASE CX35B feature 18 bolt holes instead of the standard 9-hole pattern? A: The 18-hole configuration distributes high-torque tractive and breaker vibration loads across twice as many clamping points. This assembly matches factory OEM numbers 72280157 / PX15V00027F1 with an exact 204 mm spigot and 18xφ12 mm pattern for zero-modification drop-in.
Q: What is the mandatory startup lubrication protocol for this unit? A: Pre-fill the hydraulic motor casing with fresh ISO VG 46 fluid through the upper casing drain plug. Separately, fill the planetary gearbox with SAE 80W-90 extreme-pressure gear lubricant up to the horizontal oil level check plug before starting the engine.

For Equipment Dealers & Repair Facilities (B-End Insights)
Q: Can part number 72280157 cover multiple CASE machines across our inventory? A: Yes. 72280157, PX15V00027F1, 47043513, and 33MH-41010 share identical 18-hole mechanical mounting geometry, 204 mm registers, and 52.7:1 reduction gearing across CX31B through CX39B models, allowing single-SKU inventory consolidation.
Q: What is the export packaging standard for overseas freight? A: Each drive unit is internally treated with rust-inhibiting transit fluid, sealed inside heavy-gauge vapor corrosion inhibitor (VCI) poly barrier wrap, and bolted securely inside an ISPM-15 certified fumigated export wooden crate built for container and air cargo handling.
5.Part list