Case Wheel Loader Front & Rear Axles

Each number on the image is a "Ref #" that can be matched on the table below.

Case Wheel Loader Front & Rear Axles parts list
REF #	Image	Fits Model	Description	Price	Product Details
	See Details	621C, 621D, 621E, 721C, 721D, 721E, W130, W130B, W130TC, LW170.B, W170B	Planetary Assembly (4 Gear)	87358702-Assy	$3,350.00	View Info
	See Details	721B	Front Differential Assembly	CS-721B-FD	From $2,850.00	View Info
	See Details	521D, 621C, 621D, 621E, LW110, LW110TC, LW110.B, LW130, W130B, LW130.B	Planetary Assembly (3 Gear)	87358700-Assy	$2,825.00	View Info
1	See Details	521D, 621C, 621D, 621E, LW110, LW110TC, LW110.B, LW130, W130B	Planetary Carrier (3 Gear)	87358700	$1,695.00	View Info
1	See Details	621C, 621D, 621E, 721C, 721D, 721E, W130, W130B, W130TC, LW170.B, W170B	Planetary Carrier (4 Gear)	87358702	$1,850.00	View Info
2	See Details	521D, 521E, 521F, 521G, 621D, 621E, 621F, 621G, 721C, 721D, 721E, 721F, 721G, W110, W110B, W110TC, W130, W130B, W130TC, W130C, LW170.B, W170B, W170C	Planetary Gear	87358699	$390.00	View Info
3	See Details	335, 340, 340B, 521D, 521E, 521F, 521G, 521G2, 621C, 621D, 621E, 621G, 621G2, 651G, 651G2, 721C, 721D, 721E, 721F, 721G, 721G2	Snap Ring, Planetary Pinion Gear	8603574	$5.00	View Info
4	See Details	521D, 521E, 521F, 521G, 521G2, 621C, 621D, 621E, 621G, 621G2, 651G, 651G2, 721C, 721D, 721E, 721F, 721G, 721G2, 821C, 821E, 821F, 821G, 821G2, 921C, 921E, 921F, 921G, 921G2	O-Ring, Axle Housing	8603674	$10.00	View Info
5	See Details	335, 340, 340B, 621C, 621D, 621E, 621G, 621G2, 651G, 651G2, 721C, 721D, 721E, 721F, 721G, 721G2, 821C, 821E, 821F, 821G, 821G2, 921C, 921E, 921F, 921G, 921G2, 1021F, 1021G, 1021G2	O-Ring, Brakes	8603559	$2.00	View Info
6	See Details	521D, 621C, 621D, 621E, 721C, 721D. 721E, W110, W110TC, LW110.B, W130, W130TC, W130B, LW130.B, LW130B, W170B, LW170.B	Planetary Ring Gear	8603560	$1,650.00	View Info
7	See Details	521D, 621C, 621D, 621E, 721D, 721E, W110, W110B, W110TC, W130, W130B, W130TC, LW130.B	Pinion Shaft	8603568	$675.00	View Info
8	See Details	521D, 521E, 621C, 621D, 621E, 621F, 721C, 721D, 721F, 721G, 821C, LW110, L110TC, LW110.B, LW130, LW130TC, W130, W130B, LW130.B, LW170.B, W170B, W170C, W190B*	Bearing	8603564	$188.00	View Info
9	See Details	521D, 521E, 621C, 621D, 621E, 621F, 721C, 721D, 721F, 721G, 821C, LW110, L110TC, LW110.B, LW130, LW130TC, W130, W130B, LW130.B, LW170.B, W170B, W170C, W190B*	Bearing	8603563	$154.00	View Info
10	See Details	121E, 221D, 221E, 221F, 321D, 321E, 321F, 480E, 480F, 570SV, 570SV CP, 570V, 575N EP, 580 Super E, 580K, 580 Super K, 580 Super M, 590 Turbo, 590L, 590 Super L, 590 Super M	Bushing, Swivel Housing	1967535C1	$15.00	View Info
10	See Details	521D, 521E, 521F, 521G, 621D, 621E, 621F, 621G, 721D, 721E, 721F, 721G, 821C, 821E, 821F, 821G	Axle Planetary Oil Seal	84150634	$128.00	View Info
10	See Details	590SM, 680L, 695SV, 780D, 21D, 21E, 21F, 121E, 121F, 221E, B115, B115B, B115BTC, LB115, LB115.B, LB115CP, LW50.B, W50BTC, W50C, W50TC, W60BTC, W60C, W70BTC	Bushing (Axle Housing Hub Drive Shaft)	D142950	$18.00	View Info
11	See Details	521D*, 621C, 621D, 621E, 721C, 721D, 721E, 821C, 821E, W110, W110TC, LW110.B, W130, W130TC, W130B, LW130.B, W170B, LW170.B, W190.B	Axle Planetary Center Nut	8603565	$74.00	View Info
12	See Details	325, 327B, 330B, 521D, 521E, 521G, 521G2, 621D, 621E, 621G, 621G2, 651G, 651G2, 721C, 721D, 721E, 721F, 721G, 721G2, 821C, 821E, 821F, 821G, 821G2, 921C, 921E, 921F, 921G, 921G2, 1021F, 1021G, 1021G2	O-Ring	8603527	$7.50	View Info
22	See Details	580L, 580 Super L, 570LXT, 580M, 580 Super M, 570MXT, 555E, 575E, 655E, 675E, B75D, LB75.B, LB75, LB75CP, NH85TLB, B90B, LB90, LB90.B, B95, B95B, B95BTC, B95C, B95D, B95TC, LB95, B95CTC, B110, B110B, B110C, B110D, LB110, LB110.B, B115, B115B, B110BTC	Drain Plug	85806012	$11.50	View Info
	See Details	221D, 321D, 321D, 221E, 221E, 121E, 121E, 321E, 321F, 221F, 221F, 321F, 321F	Axle Bearing and Race	84592016	$92.00	View Info
	See Details	W36	Upper Steering Pivot Self-Aligning Bushing	L70006	$80.00	View Info

Front and rear axle components for Case wheel loaders, including differentials, planetary carriers, ring gears, planetary pinion shafts, axle bearings, seals, O-rings, snap rings, and swivel housing bushings across the 521 through 1021 series and W-series machines.

Fits Models At A Glance

521 Series: 521D, 521E, 521F, 521G, 521G2
621 Series: 621C, 621D, 621E, 621F, 621G, 621G2
651 Series: 651G, 651G2
721 Series: 721B, 721C, 721D, 721E, 721F, 721G, 721G2
821 Series: 821C, 821E, 821F, 821G, 821G2
921/1021 Series: 921C, 921E, 921F, 921G, 921G2, 1021F, 1021G, 1021G2
W Series: W36, W110, W110TC, W130, W130B, W130TC, W130C, W170B, W170C, W190B

Key Notes

Application: Front and rear axle drivetrain and sealing components
Part Types: Differentials, planetary carriers, ring gears, pinion shafts, bearings
Sealing: Axle housing O-rings, oil seals, cover O-rings, snap rings
Axle Design: Includes ZF axle-equipped loader configurations
Condition: New and good used assemblies available

Why Choose Broken Tractor

✅ Verified fitment across Case loader generations
✅ Fast shipping from two US locations
✅ New and used axle parts available

Frequently Asked Questions

How do I know if a Case wheel loader axle part will fit my machine?

Match the part number to your machine and confirm your model falls within the fitment list, since Case axle parts vary across the 521 through 1021 and W series. Some parts are limited to ZF axle-equipped configurations, and several fitments depend on serial number breaks. If you are unsure, match the part number on your old component or confirm with our parts team at (800) 909-7060.

What axle parts do you carry for the Case 721B wheel loader?

We carry a good used front differential specifically for the Case 721B (SKU CS-721B-FD). Broken Tractor stocks both new and good used axle assemblies across Case loader generations, so availability varies by part and model.

Do you sell planetary carriers for Case wheel loaders?

Yes, Broken Tractor offers 3 gear and 4 gear planetary carriers, including carrier assemblies with gears installed. These fit models such as the 521D, 621C through 621E, 721C through 721E, and W130 through W170B depending on the exact SKU. Confirm the gear count and model fitment before ordering.

What O-rings and seals are available for Case ZF axles?

We carry axle housing O-rings, small housing O-rings, axle cover O-rings, and planetary oil seals for Case loaders with ZF axles. Coverage spans the 521 through 1021 series depending on the specific part number. Match the SKU to your axle configuration since sizes differ between components.

What is the swivel housing bushing for a Case wheel loader 4WD axle?

The swivel housing bushing supports the steering pivot on 4WD front axles and wears from steering load over time. Broken Tractor carries 4WD axle swivel housing bushings that fit a range of Case loader and backhoe models. Check the fitment list against your model to select the correct bushing.