Case 590SL, 590SM, 590SM II Front Axle Planetary

4WD front axle planetary components for Case 590 Super L and 590 Super M backhoe loaders, covering wheel hubs, planetary gears, hub carrier gears, ring gears, hub seals, bearings, sun gears, snap rings, thrust washers, and related hardware.

Fits Models At A Glance

• 480E / 480F Series: 480E, 480E LL, 480F, 480F LL
• 570 Series: 570LXT, 570MXT, 570NXT, 570N EP
• 580E / 580 Super E / 580K Series: 580E, 580 Super E, 580K, 580K Phase I, 580K Phase III, 580SK, 580 Super K
• 580L / 580 Super L Series: 580L, 580L Series II, 580 Super L, 580 Super L Series II
• 580M / 580 Super M Series: 580M, 580SM, 580SM+, 580 Super M
• 580N / 580 Super N Series: 580N, 580SN, 580SN WT, 580 Super N
• 590 Series: 590, 590L, 590SL, 590SL Series II, 590SM, 590SM Series II, 590SM Series III, 590SN, 590 Turbo, 590 Super L, 590 Super L Series I, 590 Super L Series II, 590 Super M, 590 Super M Series I, 590 Super M Series II, 590 Super N

Key Notes

• Application: 4WD front axle planetary components for Case backhoe loader front axle systems on 590 Super L and 590 Super M platforms
• Coverage: Includes wheel hubs, planetary gears, hub carrier gears, ring gears, hub seals, front hub bearings and races, sun gears, planetary cover assemblies, front axle shaft spacers, shaft spacer rings, planetary gear needle bearings, thrust washers, thrust plates, lock rings, snap rings, drive hub bolts, wheel lug studs, lug nuts, lug bolt kits, drive shaft U-joints, drain plugs, oil seals, and bushing components
• Function: Maintains 4WD front axle planetary drive, hub carrier, ring gear, and wheel hub function on Case 590 Super L and 590 Super M backhoe loader platforms
• Fitment Note: Series I, II, and III configurations have different planetary and hub seal part numbers — verify series when ordering

Why Choose Broken Tractor

• ✅ Planetary gears, carrier gears, ring gears, and sun gears all available
• ✅ Wheel hubs, hub seals, and bearings available for 590SL and 590SM series
• ✅ Covers 480E through 590 Super N series platforms

Frequently Asked Questions

Which front wheel hub fits a Case 590 Super M backhoe?

It depends on the series and axle. Broken Tractor carries hub K395123, listed for the 590 Super L and 590 Super M Series 1, and hub 87415747, listed for the 590SM with axle number 87417392 and the 590 Super M II. A used version of the K395123 hub is also offered. Check your axle number or series before ordering, or call (800) 909-7060 to confirm the right hub.

Do Case 590SL and 590SM Series I, II and III use the same planetary parts?

No, Series I, II and III configurations use different planetary and hub seal part numbers, so verify your series before ordering. For example, the front axle ring gear H437677 is listed for the 590 Super L Series I and II and the 590SM and 590SM Series 2. The sun gear K395114 is listed for the 590 Super L Series I and II and the 590SM Series 2 and 3. Matching the part number from your old part is the safest way to get the correct fit.

What front axle planetary parts does Broken Tractor carry for the Case 590SL and 590SM?

We carry front wheel hubs, planetary gears, hub carrier gears, ring gears, sun gears, hub seals, front hub bearings and races, planetary needle bearings, thrust washers and thrust plates. We also offer planetary cover assemblies and cover screws, ring gear lock rings, snap rings, axle shaft spacers, drive hub bolts, wheel studs, lug nuts, lug bolt kits, drain plugs and drive shaft U-joints. These parts cover the 4WD front axle planetary and wheel hub on Case 590 Super L and 590 Super M backhoes.

Which hub carrier gear fits a Case 590 Super L?

Broken Tractor offers two hub carrier gears that list the 590 Super L. Part H437678 fits the 580K, 580 Super K, 590 Turbo and 590 Super L, and part 295581A1 fits the 590 Super L and 590 Super M. Because fitment can change by series, match the part number on your existing carrier gear or confirm with the parts team before ordering.

What size sun gear does the Case 590 Super L and 590 Super M front axle planetary use?

The front axle planetary sun gear K395114 has 15 teeth and 22 splines. It is listed for the 590 Turbo, 590 Super L Series I and II, and the 590SM, 590SM Series 2 and 590SM Series 3. It also fits the 580K Phase I, 580K Phase III and 580 Super K backhoes.