Click here to download a printable PDF of this schematic.

The Apex (BH421SS5): Complete Parts Diagram

NOTE: If your grill is still in the warranty period (check your owner's manual for your grill's exact warranty) please call our Customer Service Department at 1-800-880-9766 during our regular business hours: Mon. - Thur 8am to 5pm (ET) Friday 8am to 4pm (ET).

Please have your MODEL NUMBER, SERIAL NUMBER (located on grill)
and DATE OF PURCHASE ready BEFORE you call.

We can NOT process a warranty claim without these numbers.
If your grill is out of warranty, see parts and pricing below. Thank you!

Key Part # Description Retail Price
(plus freight)
1. SS5-301 ASSM Smokestack, Stainless $23.76
2. AG4-281 Lid Thermometer (requires 3 holes to be drilled on older model grills) $27.00
3. SS5-914C Lid Stop $3.42
4. SS5-200W RIVNUT LID SHELL / APEX $304.02
5. SG2-300 Cooking Grid, full sized grills $108.49
6. AG4-950 Cast Logo $20.35
7. SS3-251L SS handle bracket left, Apex and Epic Grills $9.65
8. SS3-250 ASSM HANDLE TUBES W/ INSERTS $34.18
9. SS3-251R SS Handle bracket right, Apex and Epic grills $9.65
10. SG2-531 Igniter Clip, Chain Assy. $6.95
11. AG2-120 Drip Pan Bracket (each) $9.92
12. AG2-600 WELD Drip Pan, Aluminum $110.00
13. AG4-170C Control Panel Bracket $14.72
14. AG4-155C CONTROL PANEL EPIC / APEX $16.98
15. AG4-151 KNOB TRIM RING BEZEL $7.44
16. SG4-752 Igniter Knob $4.63
17. AG4-150 ON/OFF KNOB FOR GAS VALVE, BRUSHED NICKEL, APEX, EPIC AND WRANGLER GRILLS $13.01
18. SS1-101SS Hinge, Stainless Steel $10.20
19. AG2-107 ASSM Flame Deflector $63.95
20. SS5-702 SHELF BRACKET, SS LF/RR $13.06
21. SS5-703 SHELF BRACKET, SS RF/LR (Each) $13.06
22. SG4-701 NuStone Shelf (each) $34.45
23. SS5-100 RIVNUT BOTTOM SHELL, APEX $428.33
24. AG2-106 WELD Air Baffle $18.08
25. SS5-114 CHIP DRAWER BRACKET, SS $10.20
26. AG4-160C TANK HEAT SHIELD - Apex, Epic $16.43
27. SS5-113 CHIP DRAWER, SS $21.50
28. SG4-115 Knob, Chip Drawer $4.53
29. SG2-105 Cast Iron Burner $44.05
30. SG2-104 Insect screen $3.18
31. SG2-103 Air shutter (behind burner valve) $3.18
32. SG2-811 Gas Valve Jam Nut $2.87
33. SG4-750 Piezo Igniter, Rotary $15.60
34. SG2-111-57 Orifice #57 for LP $3.58
35. SG2-111-53 Orifice #53 for Natural Gas conversion, Stainless grills $3.58
36. SG4-102 Angled gas valve (***IMPORTANT see note below) $41.29
37. SG4-751 Electrode $31.97
38. AG4-801C WELD TANK HOLD DOWN BRACKET $3.58
39. AG4-351C WELD CABINET SIDE, LEFT $84.79
40. AG4-309C DOOR PIVOT BRACKET $2.87
41. AG4-352C CABINET BACK $45.20
42. AG4-350C WELD CABINET SIDE, RIGHT $84.79
43. SG4-501 Grommet $3.42
44. AG4-307C DOOR MAGNET $7.39
45. AG4-305C ASSY CABINET DOOR ASSEMBLY $78.00
46. AG4-308C UTENSIL HOOKS $0.61
47. AG4-310C DOOR KNOB $3.86
48. SG4-910 3/4 inch Drain Pipe $11.58
49. SG2-109 Hose/Regulator $29.05
50. AG4-312C PLASTIC DOOR SPACER $0.61
51. AG4-304C Condiment Tray $20.95
52. SG4-909 Valve, Drip Pan, 3/4" $28.12
53. SS5-303C ASSM BUCKET HANGER $5.68
54. SG2-1000 Drip Bucket $16.43
55. AG4-512A METAL CASTER WHEEL, NON LOCKING, New Style, Single Wheel, Threaded Stem $17.59
56. AG4-550W WELD CABINET BASE EPIC APEX $87.65
57. AG4-511A METAL CASTER WHEEL, LOCKING, New Style, Single wheel, Threaded Stem $17.59
58. AG4-1014 BAGGED HARDWARE, EPIC / APEX $27.12

***IMPORTANT the replacement gas valve (SG4-102) ships with a #55 orifice installed. This orifice only works for black grills that are on LP gas. You MUST use the orifice from your old valve or order the proper orifice size, if necessary.