Case 21 Series Wheel Loader Brakes
| REF # | Image | Fits Model | Description | Part # | Price | Product Details |
| 1 |
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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, 1021F, 1021G, 1021G2 | Brake Ring | 8603577 |
$74.00
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| 2 |
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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 | Sealing Ring | 8605314 |
$70.00
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| 3 |
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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 | Brake Sealing Ring | 8605315 |
$78.00
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| 4 |
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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, 1021F, 1021G, 1021G2 | Brake Ring | 8603579 |
$69.00
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| 5 |
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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, 1021F, 1021G, 1021G2 | Brake Piston Guide Ring | 8603580 |
$58.00
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| 6 |
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335, 340, 340B, 521D, 621C, 621D, 621E, 721C, 721D, 721E, 821C, 821E, 921C, 921E | Brake Sealing Ring | 8603583 |
$4.75
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| 7 |
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335, 340, 340B, 521D, 621C, 621D, 621E, 721C, 721D, 721E, 821C, 821E, 921C, 921E | Brake Pin | 8603163 |
$19.00
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| 8 |
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335, 340, 340B, 521D, 621C, 621D, 621E, 721C, 721D, 721E, 821C, 821E, 921C, 921E | Brake Cup Spring | 8603584 |
$2.50
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| 9 |
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521D, 621D, 621E, 721D, 721E, 821C, 821E, 921C, 921E | Brake Shim Plate | 8603162 |
$104.00
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| 11 |
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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 | Brake Retainer Ring | 8603585 |
$30.00
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| 12 |
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335, 340, 340B, 521D, 621C, 621D, 621E, 721C, 721D, 721E, 821C, 821E, 921C, 921E | Snap Ring, Brakes | 8603788 |
$2.50
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| 13 |
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521D*, 521E, 621D*, 621E, 721D, 721E, 721F, 821C, 821E, 921C, W110, W110B, W110TC, W130, W130TC, W170B, W190B*, LW110.B, LW130.B, LW170.B | Brake Plate | 8603582 |
$79.00
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| 14 |
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521D*, 521E, 621D*, 621E, 721D, 721E, 721F, 821C, 821E, 921C, W110, W110B, W110TC, W130, W130TC, W170B, W190B*, LW110.B, LW130.B, LW170.B | Outer Brake Plate (2mm Thick) | 87441328 |
$78.00
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| 15 |
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521D, 521E, 521F, 521G, 621D, 621E, 621F, 621G, 721D, 721E, 721F, 721G, 821C, 821E, 921C, LW110.B, LW130, LW130.B, LW170.B, W110, W110B, W110TC, W130, W130B, W130C, W130TC, W170B, W170C, W170TC, W190B, W230C | Brake Friction Disc | 87341835 |
$84.00
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621, 721, 821, W14, W14B, W18, W20B, W20C, W24C, W30 | Brake Master Cylinder with Air Chamber | L113007 |
$1,120.00
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621, 721, 821, W14, W14B, W20B, W20C, W24C, W30 | Brake Master Cylinder | N8695 |
$424.00
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621, W14, W14B, W20B, W20C, W24C, W30 | Master Cylinder Repair Kit | N8937 |
$175.00
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W14, W14B, W20B, W20C, W30, 621 | Rubber Diaphragm, Air Brake | N8698 |
$25.00
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W7, W7E, W8, W8B, W8C, W8E, W9, W9A, W9B, W9C, W9E, W10B, W10C, W10E W11, W11B, W14, W14FL, W18, W18B, W20 | Brake Slave Cylinder | A12985 |
$78.00
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621 (After JAK0027127), 721 (After JAK0022629) | Brake Shoe | S301674 |
$55.00
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(621 After Ser#JAK0027127), (721 After Ser# JAK0022629) | Brake Caliper Resealing Kit | S301676 |
$94.00
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W14, W20B, W24C, (621 After Ser#JAK0027127, (721 After Ser# JAK0022629) | Brake Piston | D77523 |
$44.00
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W14B, W18B, W20C, W24C, W30, (621 Before Ser# JAK0027127), (721 Before Ser# JAK0022628), (821 Before Ser# JAK0023970) | Brake Shoe | S300718 |
$55.00
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W14B, W18B, W20C, W24C, W30, (621 Before JAK0027127), (721 Before JAK0022628), (821 Before JAK0023970) | Brake Caliper Resealing Kit | N7964 |
$84.00
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W14B, W18B, W20C, W24C, W30, (621 Before JAK0027127), (721 Before Serial JAK0022628) , (821 Before Serial JAK0023970) | Brake Piston | N7963 |
$42.00
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621B, 621C*, 721B, 721C*, 821B, 821C* | Brake Disc (4.5mm) | 119430A1 |
$45.00
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621B, 621C*, 721B, 721C*, 821B, 821C* | Brake Disc (4mm) | 119431A1 |
$20.00
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621B, 621C*, 721B, 721C*, 821B, 821C* | Brake Disc | 119433A1 |
$48.00
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Case 21 Series Wheel Loader Brake Parts
Case 21 Series wheel loader brake parts provide direct replacement components for inboard wet brake and axle-mounted braking systems used on mid- to large-frame loaders. This category fits Case 521D, 521E, 521F, 521G, 621C, 621D, 621E, 621F, 621G, 721C, 721D, 721E, 721F, 721G, 821C, 821E, 821F, 821G, 921C, 921E, 921F, 921G, and 1021F/1021G models (serial breaks apply on select machines). These Case 21 Series wheel loader brake parts are used to restore braking force, eliminate internal axle leaks, and correct worn friction stacks that cause slipping or inconsistent pedal response.
Fits:
521D, 521E, 521F, 521G
621C, 621D, 621E, 621F, 621G
721C, 721D, 721E, 721F, 721G
821C, 821E, 821F, 821G
921C, 921E, 921F, 921G
1021F, 1021G
Common Repair Issues
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Reduced stopping power under load
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Brake chatter or grabbing
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Oil contamination from failed sealing rings
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Worn friction discs and brake plates
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Excessive brake stack clearance
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Axle leaks at sealing and retainer rings
Parts Covered in This Category
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Brake friction discs
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Lined brake discs (ZF axles)
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Brake plates (standard and 2mm outer plates)
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Brake rings and sealing rings
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Brake piston guide rings
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Brake locking and snap rings
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Brake shim plates
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Brake pins and cup springs (Belleville washers)
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Brake retainer rings
Key Notes:
Application: Inboard axle brake systems for Case 21 Series wheel loaders, including ZF-equipped axles.
Coverage: Includes friction discs, steel plates, sealing rings, shims, guide rings, and related hardware.
Material/Build: Hardened steel plates and precision-molded sealing components for proper stack height and sealing.
Function: Restores correct brake pack tension, sealing integrity, and consistent stopping performance.
Made In / Brands: Varies by part.
Why Choose Broken Tractor:
✅ Exact-Fit Brake Components for 21 Series Loaders
✅ Serial-Specific Coverage Where Required
✅ Heavy-Duty Replacement Parts for Axle Brake Systems
