Replacement Parts List
Table Of Contents
GAS
88 Current Service Parts
Fig. 
No.
Part No. Description Mfr. Mfr.’s Part No.
Boiler 
Size
11
591-126-615
Burner Manifold Weil-McLain
25
591-126-616 3
591-126-617 4
591-126-618 5
591-126-619 6
591-126-556 7
591-126-557 8
12
560-528-997 Main Burner Orice – Natural Gas 2.0mm Weil-McLain All
560-528-998 Main Burner Orice – Propane Gas 1.3mm Weil-McLain All
13 512-200-077 Main Burner - Stainless Steel Weil-McLain All
N/S
512-200-079
Main Burner - Stainless Steel With Pilot Bracket 
(Standing Pilot) - (Available With Pilot Burner Kit)
Weil-McLain All
512-200-078
Main Burner With Pilot Bracket (Spark Ignition Pilot)
(Available With Pilot Burner Kit), Standing Pilot, LP
Weil-McLain All
14
Available Lo-
cally
Screw
, 10-32 x ⅜" STP Type D HEX, Washer Heat 
Slotted, Zinc Plated
Weil-McLain
15 512-050-230 Rollout Thermal Fuse Element, 228˚C Thermodisc G4M0604121C All
N/S
381-354-355
Base Replacement Carton - (Includes, Base Panels 
- Items 1, 2, 3, 4, 5, 6, and 7, Insulation, Air Box 
Gaskets, and Hardware) 
Weil-McLain
25
381-354-356 3
381-354-357 4
381-354-358 5
381-354-359 6
381-354-360 7
381-354-361 8
Notes:
 Order sufcient quantities to replace all orices within a base.
 Number of burners:
 CGa-25: 2 main burners and 1 burner with pilot bracket 
 CGa-3: 3 main burners and 1 burner with pilot bracket 
 CGa-4: 5 main burners and 1 burner with pilot bracket 
 CGa-5: 7 main burners and 1 burner with pilot bracket 
 CGa-6: 9 main burners and 1 burner with pilot bracket
 CGa-7: 11 main burners and 1 burner with pilot bracket
 CGa-8: 13 main burners and 1 burner with pilot bracket
CGa - Series 1 & 2 
Base Assembly Parts Continued










