Engineered for relentless performance, the MERIT Percussion Piston (3363 0875 73) is built to deliver unmatched durability and precision in the toughest hydraulic breaker applications. Crafted from high-grade materials and finished in resilient alloy steel, this piston is designed to withstand extreme pressure, heat, and continuous impact—ensuring longer service life and reduced downtime.
🔧 Key Features:
✅ High-strength alloy steel construction for superior wear resistance
✅ Precision-machined for optimal hydraulic efficiency
✅ Fully compatible with HB5800 and HB 5800 DP hydraulic breaker systems
✅ Rigorously tested for reliability under extreme conditions
💡 Backed by MERIT – Where Power Meets Precision.
Upgrade your equipment with genuine MERIT components and experience the difference in performance, quality, and trust.
Elastic pad
3363 0860 37
Shock absorber
3363 0860 39
Guide plate
3363 0860 41
Guide plate
3362 2652 15
Guide plate
3362 2626 67
Plate
3363 0933 85
Transport safety device
3363 0875 84
Allen screw
3360 1141 51
Label transport safety device
3363 0918 72
Nut
3360 1032 55
Cover
3363 0311 81
Plug
3363 0860 17
Plate
3363 0988 35
Allen screw
3360 1037 68
Pair of lock washers
3361 3337 03
Allen screw
3360 1037 50
Pair of lock washers
3361 8505 96
Plate
3363 0988 38
Plate
3363 1104 17
Plate
3363 0988 41
Swivel joint cover
3363 1114 62
Swivel joint cover
3363 1116 96
Allen screw
3360 1037 51
Pair of lock washers
3363 1112 96
Lifting eye
3363 1119 92
Breaker box
3363 1104 16
instructions
3363 0671 23
see separate chapter
3363 0875 82
and the wiper (no. 19).
3363 0904 71
Elastic pad
3363 0860 37
Shock absorber
3363 0860 39
Guide plate
3363 0860 41
Guide plate
3362 2652 15
Guide plate
3362 2626 67
Plate
3363 0933 85
Floating ring
3363 0877 02
Counter ring
3363 0356 43
Guide ring
3363 0356 39
Bolt
3363 0877 03
Locking bush
3361 8543 63
Base for wiper
3363 0886 43
Wiper
3363 0877 01
Transport safety device
3363 0875 84
Allen screw
3360 1141 51
Label transport safety device
3363 0918 72
Nut
3360 1032 55
Cover
3363 0311 81
Plug
3363 0860 17
Plate
3363 0988 35
Allen screw
3360 1037 68
Pair of lock washers
3361 3337 03
Allen screw
3360 1037 50
Pair of lock washers
3361 8505 96
Plate
3363 0988 38
Plate
3363 1104 17
Plate
3363 0988 41
Swivel joint cover
3363 1114 62
Swivel joint cover
3363 1116 96
Allen screw
3360 1037 51
Pair of lock washers
3363 1112 96
Lifting eye
3363 1119 92
Breaker box
3363 1104 15
instructions
3363 0671 23
see separate chapter
3363 0875 82
with no. 162, 163, 165
3363 0875 81
Main control valve
3363 0886 33
Cover
3363 0865 15
O-ring
3360 3143 76
Allen screw
3360 0267 84
Washer
3361 8507 48
Frequency switching valve
3363 0354 53
O-ring
3360 3143 70
Threaded plug
3363 0354 25
HP-accumulator
3363 0695 87
Expansion bolt
3361 8515 91
Washer
3363 0922 53
O-ring
3360 3143 64
Back-up ring
3360 3280 46
Non-return valve
3361 8545 11
O-ring
3360 3144 94
Allen screw
3360 0265 13
Connecting screw
3361 8546 57
O-ring
3360 4781 71
Safety valve
3363 0852 70
Threaded plug
3363 0870 86
Back-up ring
3363 0870 85
Plug
3363 0870 87
Adapter
3363 0977 59
Threaded insert
3363 0899 16
Allen screw
3363 0949 02
Washer
3361 8507 48
O-ring
3363 1104 01
Swivel joint
3363 0865 71
Center/Dealer in your area.
3363 1034 70
Snapring
3363 1031 33
Adapter
3363 0865 69
Seal kit
3361 8504 22
Disk
3361 3566 45
151(152-153)
3363 0837 49
Swivel joint
3363 0860 81
Adapter
3363 1034 70
Snapring
3363 1031 33
Adapter
3361 3566 43
Seal kit
3361 8504 22
Disk
3361 3566 45
Cap
3361 3534 89
Strainer disk
3361 8441 13
Threaded plug
3361 8441 15
Plug
3363 0669 63
Threaded insert
3361 0315 29
Plug
3363 0860 99
Filling valve
3363 0872 86
Threaded plug
3360 4784 26
O-ring
3360 1751 25
1751 25
3363 0875 68
Tensioning bolt
3363 0886 11
Washer
3363 0936 49
Seal bush
3363 0886 13
Ring
3363 0977 97
Seal
3363 1034 18
Seal
3363 0981 37
Seal kit
3363 0875 92
–
3363 0875 78
Seal
3361 0319 88
Seal
3362 2675 83
Seal
3362 2675 90
Seal
3360 3144 53
Wiper
3363 0877 11
Percussion piston
3363 0875 73
Lock pin
3360 1068 18
Seal kit
3363 0875 93
Plug
3363 0825 93
O-ring
3363 0832 45
Valve piston
3363 0825 05
Seal
3360 3144 53
Lock pin
3360 1068 18
Retainer bar
3363 0886 23
Bolt
3363 0886 21
Plug
3362 2604 35
Protective cap
3363 0856 97
Lower breaker part
3363 0949 98
Impact ring
3363 0886 15
Wear bush
3363 0886 17
Wear bush
3363 0886 47
Bolt
3363 0886 21
Locking bush
3362 2604 33
Threaded insert
3363 0853 79
O-ring
3363 0879 59
secure with Loctite 243
3363 0875 82
0875 82
3360 1037 50
1037 50
3361 8505 96
secure with Loctite 243
3363 0668 87
secure with Loctite 243
3363 0662 33
not in contact to any point.
3363 0875 83
secure with Loctite 243
3363 0687 45
secure with Loctite 243
3363 0662 34
not in contact to any point.
3363 0838 77
Seal
3363 0669 51
Support
3363 0689 37
Allen screw
3360 1037 51
secure with Loctite 243
3363 0871 85
secure with Loctite 243
3363 0871 86
StartSelect
3363 0825 93
0825 93
3363 0832 45
0832 45
3363 0825 05
steel
3363 0886 31
bronze
3363 0886 41
312.0
3363 0879 22
362.0
3363 0875 27
360.0
3363 0914 20
327.0
3363 0875 24
377.0
3363 0875 25
375.0
3363 0914 21
327.0
3363 0942 60
377.0
3363 0942 61
353.0
3363 0879 24
404.0
3363 0875 28
405.0
3363 0914 22
687.8
3363 0879 22
798.1
3363 0875 27
793.7
3363 0914 20
720.9
3363 0875 24
831.1
3363 0875 25
826.7
3363 0914 21
720.9
3363 0942 60
831.1
3363 0942 61
778.2
3363 0879 24
980.7
3363 0875 28
892.9
3363 0914 22
312.0
3363 0879 22
362.0
3363 0875 27
360.0
3363 0914 20
327.0
3363 0875 24
377.0
3363 0875 25
375.0
3363 0914 21
327.0
3363 0942 60
377.0
3363 0942 61
353.0
3363 0879 24
404.0
3363 0875 28
405.0
3363 0914 22
687.8
3363 0879 22
798.1
3363 0875 27
793.7
3363 0914 20
720.9
3363 0875 24
831.1
3363 0875 25
826.7
3363 0914 21
720.9
3363 0942 60
831.1
3363 0942 61
778.2
3363 0879 24
980.7
3363 0875 28
892.9
3363 0914 22
5/8″,
3361 8538 60
7/8″,
3363 0835 63
5/8″,
3361 8538 61
7/8″,
3363 0835 62
0835 62
3363 0912 00
Grease gun for cartridge ContiLube II
3363 0345 67
Grease nipple
3360 4337 74
4337 74
3363 0898 45
Service box
3363 0949 40
Test gauge
3363 0889 97
0889 97
3363 0949 52
Base plate
3363 0997 91
Bolt kit
3363 0873 05
Base plate
3363 1028 73
Bolt kit
3363 0945 77
0945 77
3360 4789 49
Adapter kit
3363 0905 31
Piston retainer
3363 0929 89
Label kit HB 5800
3363 0943 19
Label kit HB 5800 DustProtector
3363 0943 20
Seal kit
3363 0875 91
O-ring
3360 3143 76
O-ring
3360 3143 70
O-ring
3360 3143 64
Back-up ring
3360 3280 46
O-ring
3360 3144 94
O-ring
3360 4781 71
Back-up ring
3363 0870 85
O-ring
3363 1104 01
Seal kit
3361 8504 22
O-ring
3361 8462 82
Back-up ring
3361 8462 81
Seal kit
3361 8504 22
O-ring
3361 8462 82
Back-up ring
3361 8462 81
Threaded plug
3360 4784 26
O-ring
3360 1751 25
Seal
3363 1034 18
Seal
3363 0981 37
Seal kit
3363 0875 92
Back-up ring
3363 0877 05
Seal
3363 0877 04
O-ring
3361 0319 88
Seal
3362 2675 83
Seal
3362 2675 90
O-ring
3360 3144 53
Wiper
3363 0877 11
Seal kit
3363 0875 93
Seal
3363 0877 09
Back-up ring
3363 0877 10
O-ring
3363 0879 59
O-ring
3363 0832 45
0832 45
3363 0917 32
Plastic parts kit
3363 0878 07
Elastic pad
3363 0860 37
Shock absorber
3363 0860 39
Guide plate
3363 0860 41
Guide plate
3362 2652 15
Guide plate
3362 2626 67
Plate
3363 0933 85
Tensioning bolt kit
3363 0943 54
Tensioning bolt
3363 0886 11
Washer
3363 0936 49
Threaded insert
3363 0853 79
Anti-Seize 120 g
3363 0943 00
DustProtector kit
3363 0943 90
Floating ring
3363 0877 02
Counter ring
3363 0356 43
Guide ring
3363 0356 39
Bolt
3363 0877 03
Locking bush
3361 8543 63
Noise protection kit
3363 0980 64
Cover
3363 0311 81
Plug
3363 0860 17
HB 5800 with
3363 1034 10
Retainer bar
3363 0886 23
Bolt
3363 0886 21
Plug
3362 2604 35
Impact ring
3363 0886 15
Wear bush
3363 0886 17
Wear bush
3363 0886 47
Bolt
3363 0886 21
Locking bush
3362 2604 33
O-ring
3363 0879 59
Test gauge
3363 0889 97
HB 5800 with
3363 0943 79
Retainer bar
3363 0886 23
Bolt
3363 0886 21
Plug
3362 2604 35
Impact ring
3363 0886 15
Wear bush
3363 0886 17
Wear bush
3363 0886 41
Bolt
3363 0886 21
Locking bush
3362 2604 33
O-ring
3363 0879 59
Test gauge
3363 0889 97
bush
3363 1034 11
Base for wiper
3363 0886 43
Wiper
3363 0877 01
Retainer bar
3363 0886 23
Bolt
3363 0886 21
Plug
3362 2604 35
Impact ring
3363 0886 15
Wear bush
3363 0886 17
Wear bush
3363 0886 47
Bolt
3363 0886 21
Locking bush
3362 2604 33
O-ring
3363 0879 59
Test gauge
3363 0889 97
0889 97
3363 0943 80
Base for wiper
3363 0886 43
Wiper
3363 0877 01
Retainer bar
3363 0886 23
Bolt
3363 0886 21
Plug
3362 2604 35
Impact ring
3363 0886 15
Wear bush
3363 0886 17
Wear bush
3363 0886 41
Bolt
3363 0886 21
Locking bush
3362 2604 33
O-ring
3363 0879 59
Test gauge
3363 0889 97
Expansion bolt kit
3363 1034 87
Expansion bolt
3363 1000 47
Washer
3363 1000 49
Threaded insert
3361 0315 46
Accumulator repair kit
3363 0898 50
Diaphragm
3361 3290 22
Filling screw
3360 3322 59
O-ring
3360 3144 60
Protective cap
3361 3350 25
O-ring
3360 3143 64
Back-up ring
3360 3280 46
HYDRAULIC BREAKER HB 5800
| Part No. | Description |
|---|---|
| 3363 0904 73 | Hydraulic breaker HB 5800 (complete) |
| 3363 0904 75 | Hydraulic breaker HB 5800 DustProtector (complete) |
MAIN BREAKER PARTS
| Part No. | Description |
|---|---|
| 3363 0904 71 | Percussion unit |
| 3363 0860 37 | Elastic pad |
| 3363 0860 39 | Shock absorber |
| 3363 0860 41 | Guide plate |
| 3362 2652 15 | Guide plate |
| 3362 2626 67 | Guide plate |
| 3363 0933 85 | Plate |
| 3363 0875 84 | Transport safety device complete |
| 3360 1141 51 | Allen screw (transport safety) |
| 3363 0918 72 | Label transport safety device |
| 3360 1032 55 | Nut |
| 3363 0311 81 | Cover |
| 3363 0860 17 | Plug |
| 3363 0988 35 | Plate |
| 3360 1037 68 | Allen screw |
| 3361 3337 03 | Pair of lock washers |
| 3360 1037 50 | Allen screw |
| 3361 8505 96 | Pair of lock washers |
| 3363 0988 38 | Plate |
| 3363 1104 17 | Plate |
| 3363 0988 41 | Plate |
| 3363 1114 62 | Swivel joint cover |
| 3363 1116 96 | Swivel joint cover |
| 3360 1037 51 | Allen screw |
| 3363 1112 96 | Pair of lock washers |
| 3363 1119 92 | Lifting eye |
| 3363 1104 16 | Breaker box (HB 5800) |
| 3363 1104 15 | Breaker box (HB 5800 DustProtector) |
| 3363 0877 02 | Floating ring (tribolid steel) |
| 3363 0356 43 | Counter ring |
| 3363 0356 39 | Guide ring |
| 3363 0877 03 | Bolt |
| 3361 8543 63 | Locking bush |
| 3363 0886 43 | Base for wiper |
| 3363 0877 01 | Wiper |
PERCUSSION UNIT PART 1: CYLINDER COVER
| Part No. | Description |
|---|---|
| 3363 0875 81 | Cylinder cover (with parts 162, 163, 165) |
| 3363 0886 33 | Main control valve |
| 3363 0865 15 | Cover |
| 3360 3143 76 | O-ring |
| 3360 0267 84 | Allen screw |
| 3361 8507 48 | Washer |
| 3363 0354 53 | Frequency switching valve (AutoControl) |
| 3360 3143 70 | O-ring |
| 3363 0354 25 | Threaded plug |
| 3363 0695 87 | HP-accumulator |
| 3361 8515 91 | Expansion bolt |
| 3363 0922 53 | Washer |
| 3360 3143 64 | O-ring |
| 3360 3280 46 | Back-up ring |
| 3361 8545 11 | Non-return valve |
| 3360 3144 94 | O-ring |
| 3360 0265 13 | Allen screw |
| 3361 8546 57 | Connecting screw |
| 3360 4781 71 | O-ring |
| 3363 0852 70 | Safety valve (PowerAdapt) |
| 3363 0870 86 | Threaded plug |
| 3363 0870 85 | Back-up ring |
| 3363 0870 87 | Plug |
| 3363 0977 59 | Adapter |
| 3363 0899 16 | Threaded insert |
| 3363 0949 02 | Allen screw |
| 3363 1104 01 | O-ring |
| 3363 0865 71 | Swivel joint complete |
| 3363 1034 70 | Adapter complete |
| 3363 1031 33 | Snapping |
| 3363 0865 69 | Adapter |
| 3361 8504 22 | Seal kit (for swivel joint) |
| 3361 3566 45 | Disk |
| 3363 0837 49 | Cap |
| 3363 0860 81 | Swivel joint complete |
| 3361 3566 43 | Adapter |
| 3361 3534 89 | Cap |
| 3361 8441 13 | Strainer disk |
| 3361 8441 15 | Threaded plug |
| 3363 0669 63 | Plug |
| 3361 0315 29 | Threaded insert |
| 3363 0860 99 | Plug |
| 3363 0872 86 | Filling valve complete |
| 3360 4784 26 | Threaded plug |
| 3360 1751 25 | O-ring |
| 3363 0875 68 | Tensioning bolt complete |
| 3363 0886 11 | Tensioning bolt |
| 3363 0936 49 | Washer |
PERCUSSION UNIT PART 2: CYLINDER
| Part No. | Description |
|---|---|
| 3363 0886 13 | Seal bush |
| 3363 0977 97 | Ring |
| 3363 1034 18 | Seal |
| 3363 0981 37 | Seal |
| 3363 0875 92 | Seal kit |
| 3363 0875 78 | Cylinder (with parts 601-603) |
| 3361 0319 88 | Seal |
| 3362 2675 83 | Seal |
| 3362 2675 90 | Seal |
| 3360 3144 53 | Seal |
| 3363 0877 11 | Wiper |
| 3363 0875 73 | Percussion piston |
| 3360 1068 18 | Lock pin |
| 3363 0875 93 | Seal kit |
| 3363 0825 93 | Plug |
| 3363 0832 45 | O-ring |
| 3363 0825 05 | Valve piston (StartSelect) |
PERCUSSION UNIT PART 3: LOWER BREAKER PART
| Part No. | Description |
|---|---|
| 3363 0886 23 | Retainer bar |
| 3363 0886 21 | Bolt |
| 3362 2604 35 | Plug |
| 3363 0856 97 | Protective cap |
| 3363 0949 98 | Lower breaker part complete |
| 3363 0886 15 | Impact ring |
| 3363 0886 17 | Wear bush |
| 3363 0886 47 | Wear bush (steel) |
| 3363 0886 41 | Wear bush (bronze) |
| 3362 2604 33 | Locking bush |
| 3363 0853 79 | Threaded insert |
| 3363 0879 59 | O-ring |
CONNECTING KIT FOR CONTILUBE® II
| Part No. | Description |
|---|---|
| 3363 0875 82 | Connecting kit |
| 3363 0668 87 | Adapter |
| 3363 0662 33 | Fitting |
| 3363 0875 83 | Hydraulic hose (Grease line) |
| 3363 0687 45 | Adapter |
| 3363 0662 34 | Fitting |
| 3363 0838 77 | Hydraulic hose (Oil line) |
| 3363 0669 51 | Seal |
| 3363 0689 37 | Support |
| 3363 0871 85 | Fitting |
| 3363 0871 86 | Fitting |
OPTIONAL PARTS
| Part No. | Description |
|---|---|
| 3363 0886 31 | Floating ring (steel) |
ACCESSORIES
| Part No. | Description |
|---|---|
| 3361 8538 60 | Hose (feed line) 2800 mm |
| 3363 0835 63 | Hose (return line) 2800 mm |
| 3361 8538 61 | Hose (feed line) 3500 mm |
| 3363 0835 62 | Hose (return line) 3500 mm |
| 3363 0912 00 | Chisel paste for Contil.ube® II |
| 3363 0345 67 | Grease gun for cartridge Contil.ube® II |
| 3360 4337 74 | Grease nipple |
| 3363 0888 45 | Service box no. II with nitrogen cylinder |
| 3363 0949 40 | Service box no. III without nitrogen cylinder |
| 3363 0889 97 | Test gauge lower wear bush |
| 3363 0949 52 | Inside callipers upper wear bush |
| 3363 0997 91 | Base plate with threaded inserts |
| 3363 0873 05 | Bolt kit |
| 3363 1028 73 | Base plate with through borings |
| 3363 0945 77 | Bolt kit |
| 3360 4789 49 | Allen key (27 mm) |
| 3363 0905 31 | Adapter kit for underwater applications |
| 3363 0929 89 | Piston retainer |
KITS
| Part No. | Description |
|---|---|
| 3363 0943 19 | Label kit HB 5800 |
| 3363 0943 20 | Label kit HB 5800 DustProtector |
| 3363 0875 91 | Seal kit |
| 3363 0917 32 | Seal kit for swivel joint (ContiLube® II) |
| 3363 0878 07 | Plastic parts kit |
| 3363 0943 54 | Tensioning bolt kit |
| 3363 0943 00 | Anti-Seize 120 g |
| 3363 0943 90 | DustProtector kit |
| 3363 0980 64 | Noise protection kit |
| 3363 1034 10 | Lower breaker part kit (steel) |
| 3363 0943 79 | Lower breaker part kit (bronze) |
| 3363 1034 11 | Lower breaker part kit DustProtector (steel) |
| 3363 0943 80 | Lower breaker part kit DustProtector (bronze) |
| 3363 1034 87 | Expansion bolt kit |
| 3363 1000 47 | Expansion bolt |
| 3363 1000 49 | Washer |
| 3361 0315 46 | Threaded insert |
| 3363 0898 50 | Accumulator repair kit |
| 3361 3290 22 | Diaphragm |
| 3360 3322 59 | Filling screw |
| 3360 3144 60 | O-ring |
| 3361 3350 25 | Protective cap |
SEAL KIT COMPONENTS (FROM SEAL KIT 3363 0875 91)
| Part No. | Description |
|---|---|
| 3360 3143 76 | O-ring |
| 3360 3143 70 | O-ring |
| 3360 3143 64 | O-ring |
| 3360 3280 46 | Back-up ring |
| 3360 3144 94 | O-ring |
| 3360 4781 71 | O-ring |
| 3363 0870 85 | Back-up ring |
| 3363 1104 01 | O-ring |
| 3361 8504 22 | Seal kit (swivel joint) |
| 3361 8462 82 | O-ring |
| 3361 8462 81 | Back-up ring |
| 3363 1034 18 | Seal |
| 3363 0981 37 | Seal |
| 3363 0875 92 | Seal kit |
| 3363 0877 05 | Back-up ring |
| 3363 0877 04 | Seal |
| 3361 0319 88 | O-ring |
| 3362 2675 83 | Seal |
| 3362 2675 90 | Seal |
| 3360 3144 53 | O-ring |
| 3363 0877 11 | Wiper |
| 3363 0875 93 | Seal kit |
| 3363 0877 09 | Seal |
| 3363 0877 10 | Back-up ring |
| 3363 0879 59 | O-ring |
| 3363 0832 45 | O-ring |
WORKING TOOLS
| Part No. | Description |
|---|---|
| 3363 0879 22 | Moil point ClassicLine (665 mm) |
| 3363 0875 27 | Moil point ClassicLine (865 mm) |
| 3363 0914 20 | Moil point SilverLine (865 mm) |
| 3363 0875 24 | Chisel (cross) ClassicLine (665 mm) |
| 3363 0875 25 | Chisel (cross) ClassicLine (865 mm) |
| 3363 0914 21 | Chisel (cross) SilverLine (865 mm) |
| 3363 0942 60 | Chisel (parallel) ClassicLine (665 mm) |
| 3363 0942 61 | Chisel (parallel) ClassicLine (865 mm) |
| 3363 0879 24 | Blunt tool ClassicLine (665 mm) |
| 3363 0875 28 | Blunt tool ClassicLine (865 mm) |
| 3363 0914 22 | Blunt tool SilverLine (865 mm) |
CONSUMABLES
| Part No. | Description |
|---|---|
| 3363 0671 23 | Contil.ube® II |
| 3315 0381 00 | Chisel paste |
