Hydraulics for EXT 12/18 2022+

Product
Parts

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1. Tank Assembly Painted (87186891780)
2. Drain cock 1/4 (87161424310)
3. Auto Air Vent 3/8" (87186844010)
4. Temperature sensor (87186888010)
5. Temperature sensor NTC (87160108090)
6. Sensor NTC Right Angled (87186843230)
7. Clip 10mm (87186632290)
7. Wireform spring (87161034880)
8. O-ring 7.75 x 2.1 L (1x) (87161074400)
9. Thermostat cover (87161029870)
10. Screw m3x6mm zc pl p/h taptite (29144114110)
11. Thermostat Overheat Head Bank (87186905480)
12. Stud hex head 20mm (87161029920)
13. Thermostat pocket (87161029880)
14. Screw m5 x 16mm pozi pan head (29124511580)
15. Pump Assembly (8716117574)
16. O-ring Retainer Pump (87186844700)
17. O-ring 20,22x3,53 EPDM (10x) (87186854900)
18. Cap Pump Diverter Valve (87186840110)
19. O-ring 17x4 (10x) (87167711540)
20. O-ring 23x4 (10x) (87167713530)
21. Clip (10x) (87186819200)
22. Return Unit HU1 ( NO BP VALVE) (87186838200)
23. Diverter valve assembly (87377046110)
24. Screw M5x16 (87161068480)
25. Motor (8737712788)
26. Plug (87161065660)
27. O-ring 12,5x3 WRAS / KTW (1x) (87161067480)
28. Clip Wire (13mm Pipe) (87186869790)
29. Clip 18mm (10x) (87186846990)
30. Adaptor Pump Connection (87186898070)
31. Clip HE Return (87186815430)
32. Clip (10x) (87161139180)
33. Pipe Pump To SHE 12/18 (87186856390)
34. O-Ring 3.0 sec x 21.5 i/d e.p. (87161408260)
35. Clip - retaining (87161483220)
36. FIBRE WASHER AFM34 30 X 22.2 X 1.5 (10x) (87161132020)
38. Gasket 23,9x17,2x1,5 (10x) (87101030430)
39. Pipe Plate Heat Exchanger To Diverter (87186841240)
41. Pipe Tank To Plate Heat Exchanger (87186841290)
42. Clip (10x) (87112000240)
43. Non return valve (87161424620)
44. Pipe DHW (87186841610)
45. O-ring 13,87x3,53 (10x) (87161165490)
46. Inlet bottom (87186804500)
47. Screw M5x30 + Washer (87161064520)
48. Seal 28,4x8 (10x) (87167710030)
49. Seal 15mm (87161064350)
50. Inlet upper (87186804490)
51. Fitting PRV (87186834990)
52. Pressure relief valve (87174010290)
53. O-ring 2,62x6,02 WRAS / KTW (10x) (87161408100)
54. Heat exchanger plates (8716117724)
55. Pipe CH Return to Diverter valve (87186841250)
56. Washer Fibre AFM 34 23.9 X 17.2 X 1.5 (87161132030)
57. Valve Bulkhead Isolating CH (87186869450)
58. Pipe DCH Return (87186841710)
59. Pipe DW Flow Switch To Plate HE (87186841370)
60. O-ring 6x2,5 (10x) (87186411900)
60. O-ring 6x2,5 (10x) (87167711640)
61. Flow sensor (8737602353)
After FD075
61. Flow sensor (87170021320)
Before FD076
62. Connector (87199050620)
63. O-ring 3,53x12,29 (10X) (87102051040)
64. O-Ring 17.6 ID X 2.4 EP (10x) (87161408200)
65. Spring Clip (1x) (87113047570)
66. Pipe DW Shut-Off Valve To Flow Switch (87186841390)
67. Isolator valve 15mm-one c/nut (87161424180)
68. Set of nuts (87161402880)
70. Pipe DW Mains (87186841410)
71. Flow limiter 15 l/min (87085004070)
72. Pipe PHE Out (87186841320)
73. Vent Air (87186832750)
74. T-Piece 18mm (87186859160)
75. Pipe PHE to Tank (87186841750)
76. Pipe CH T-Connector To Shut Off Valve (87186841340)
77. Pipe CH Out (87186841350)
78. Expansion vessel 12 litre (87161076600)
79. Hose Flexible (87186840650)
80. Bracket Expansion Vessel (87186811730)
82. Gauge Plastic Capillary (87186893570)
83. Pump head (8716117576)
84. Plug (8716117578)
99. Tank Insulation (8716119373)

Accuracy of Information

Worcester Bosch has taken all reasonable care in the preparation of the contents of this website and intends that the information is accurate at the time it is uploaded. However, such information can be subject to change and therefore we do not warrant its accuracy. Particulars are for illustration only. We operate a policy of continuous product development and individual features may vary from time to time. Consequently, these particulars should be treated as general guidance only and do not constitute a contract, part of a contract, or a warranty. You should take appropriate steps to verify any information upon which you wish to rely. Worcester Bosch shall not be liable for damages of any kind or nature whatsoever arising out of or related to the use of this website or the information it contains.