Description
Product Description
Brand: Topsealkit
Model Compatibility: Rammer S21 Hydraulic Breaker
Part Name: Hydraulic Breaker Seal Kit / Hydraulic Hammer Seal Kit
Part Number: 42370
Working Tool Diameter: 45 mm
Material: TPU + HNBR + PTFE
Position: Rammer Hydraulic Breaker System
Certification: ISO 9000
Packaging Details: Bag or Box + Carton
Delivery Time: 2–5 days after payment confirmation
Brand Option: Topsealkit, OEM, or as required
Payment Terms: TT / PayPal / Western Union
Supply Ability: 500 sets
MOQ: 1 set
Parts list
| Item | Description | Part no. | Specification | Qty |
| Kit | Seal set (incl. parts 1-12) | 42370 | 1 | |
| 1 | Wiper | 94154 | D45 | 1 |
| 2 | Seal | 94155 | D45 | 1 |
| 3 | Seal | 94156 | D30 | 1 |
| 4 | Seal | 911036 | D20 | 1 |
| 5 | Seal | 94159 | D45 | 1 |
| 6 | O-ring | 90038 | D57 | 2 |
| 7 | O-ring | 90001 | D20 | 6 |
| 8 | O-ring | 94157 | D10 | 2 |
| 9 | O-ring | 90030 | D75 | 1 |
| 10 | O-ring | 90017 | D34 | 1 |
| 11 | O-ring | 910006 | D23 | 2 |
| 12 | Usit-ring | 90056 | U8.7-14-1 | 2 |
| 3 | Valve body (incl. part 25) | 100113 | 1 | |
| 14 | Distributor | 300385 | 1 | |
| 15 | Assembly ring | 300157 | 1 | |
| 16 | Steering bush | 300386 | 1 | |
| 25 | Flange plug | 90403 | R1/4 | 2 |
| 30 | Seal | 94156 | D30 | 1 |
| 33 | O-ring | 90038 | D57 | 2 |
| 34 | O-ring | 90001 | D20 | 6 |
| 35 | O-ring | 94157 | D10 | 2 |
| 39 | Parallel pin | 90371 | 6m6x18 DIN 6325 | 1 |
| 4 | Cylinder (incl. part 26) | 100114 | 1 | |
| 5 | Piston | 200139 | 1 | |
| 26 | Flange plug | 93203 | R1/8 | 2 |
| 28 | Wiper | 94154 | D45 | 1 |
| 29 | Seal | 94155 | D45 | 1 |
| 39 | Parallel pin | 90371 | 6m6x18 DIN 6325 | 1 |
| 1 | Low pressure accumulator (incl. | 300142 | 1 | |
| parts 101-110) | ||||
| 101 | Accumulator bottom | 200136 | 1 | |
| 102 | Accumulator cover | 200137 | 1 | |
| 103 | Membrane | 300177 | 1 | |
| 104 | O-ring | 90030 | D75 | 1 |
| 105 | Hex. socket screw | 91021 | M12x50-8.8 DIN 912 | 4 |
| 106 | Usit-ring | 90056 | D9 | 1 |
| 107 | Filling plug | 42074 | 1 | |
| 108 | Shield plug | 400300 | 1 | |
| 109 | Lock washer | 91012 | M12 NORD-LOCK | 12 |
| 110 | O-ring | 910006 | D23 | 1 |
| 37 | Hex. socket screw | 900000 | M12x70-8.8 DIN 912 | 8 |
| 2 | High pressure accumulator (incl. | 300143 | 1 | |
| 201 | Accumulator bottom | 300144 | 1 | |
| 202 | Accumulator cover | 300145 | 1 | |
| 203 | Membrane | 300176 | 1 | |
| 204 | O-ring | 90017 | D34 | 1 |
| 205 | Hex. socket screw | 91045 | M12x30-8.8 DIN 912 | 2 |
| 206 | Usit-ring | 90056 | D9 | 1 |
| 207 | Filling plug | 42074 | 1 | |
| 208 | Shield plug | 400300 | 1 | |
| 209 | Lock washer | 91012 | M12 NORD-LOCK | 6 |
| 210 | O-ring | 910006 | D23 | 1 |
| 36 | Hex. socket screw | 91021 | M12x50-8.8 DIN 912 | 4 |
Application chart
Why Choose Topsealkit?
✅ Best Quality – Premium TPU, HNBR, and PTFE materials deliver superior sealing performance and durability.
✅ Market-Focused Design – Special packaging and top quality help you gain more customers and better profit.
✅ Easy Installation – Every seal has its correct position, making installation simple and professional.
✅ Long Lifetime – Special treatment helps seals resist oxidation, water, and oil for extended service.
✅ Sponge Protection – Protective sponge helps seals resist oxidation and stay effective longer.
✅ OEM-Compatible – Designed to meet or exceed OEM standards.
Compatible Model
This seal kit fits the following hydraulic breaker model:
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Rammer S21 (45mm working tool diameter)
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 42370 |
| Part Name | Hydraulic Breaker Seal Kit |
| Compatible Model | Rammer S21 |
| Working Tool Diameter | 45 mm |
| Material | TPU + HNBR + PTFE |
| Position | Rammer Hydraulic Breaker System |
| Certification | ISO 9000 |
Additional Seal Kits & Parts Available
We also supply a full range of seal kits and replacement parts for excavators and hydraulic breakers, including:
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Hydraulic breaker diaphragms / membranes
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Coil springs for accumulator
-
Diaphragm supports
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Hydraulic breaker seal kits for various brands
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Hydraulic cylinder seal kits (Boom, Arm, Bucket)
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Center joint seal kit
-
Track adjuster seal kit
-
Tensioner cylinder seal kit
-
Gear pump seal kit
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Hydraulic pump seal kit
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Travel pump seal kit
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Control valve seal kit
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Swing pump seal kit
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O-ring kits
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Floating seal kits
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Rotary bearing seals
Compatible hammer brands we support:
Rammer, Krupp, Soosan, Furukawa, Atlas Copco, Epiroc, Montabert, Komatsu, NPK, MSB, Toku, Toyo, DAEMO, Sandvik, and more.
Fast Shipping & Reliable Service
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Fast handling: 2–5 days delivery after payment
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Global shipping available
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Professional packaging to ensure product safety
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