Skip to accessibility statement
Free shipping on orders over $99
●
Your Zip:
43230
ORDER STATUS
Your Zip:
43230
HELP
MENU
CONTACT & SUPPORT
Live Chat Offline:
Email Us
SIGN IN
0
CART
×
SIGN IN
Shop by Category
Plumbing
Heating
HVAC
Electrical
PEX
Fittings
Valves
Tools
Resources
Our Team
Account
Order History
Returns
Customer Support
Give Us Feedback
Tools
Reorder
Quick Order
Saved Carts
Lists
Resources
PEX Plumbing
PEX Tools
Radiant Heat
Boiler Room
Plumbing Supplies
Air Conditioning
Video Library
Project Calculators
Find Parts For Your Unit
Filter menu expanded
Filters
Hide Filters
192 items
Reset
SORT
Top Sellers
Default
Price ▲
Price ▼
Product Availability
–
Show In Stock Only</strong> Filter (61)
Show
In Stock Only
(61)
Used With
–
AHE Boilers Filter (3)
AHE Boilers (3)
CE Boilers Filter (1)
CE Boilers (1)
CG Boilers Filter (38)
CG Boilers (38)
CGa Boilers Filter (84)
CGa Boilers (84)
CGa-3 Boilers Filter (12)
CGa-3 Boilers (12)
CGa-4 Boilers Filter (13)
CGa-4 Boilers (13)
CGa-5 Boilers Filter (12)
CGa-5 Boilers (12)
CGa-6 Boilers Filter (9)
CGa-6 Boilers (9)
CGa-7 Boilers Filter (6)
CGa-7 Boilers (6)
CGa-8 Boilers Filter (11)
CGa-8 Boilers (11)
See More
Review Score
–
5 Filter (25)
(25)
4 Filter (7)
(7)
3 Filter (1)
(1)
Price Range
–
$5 to $10 Filter (4)
$5 to $10 (4)
$10 to $15 Filter (3)
$10 to $15 (3)
$15 to $20 Filter (6)
$15 to $20 (6)
$20 to $25 Filter (3)
$20 to $25 (3)
$25 to $30 Filter (1)
$25 to $30 (1)
$30 to $35 Filter (3)
$30 to $35 (3)
$35 to $40 Filter (3)
$35 to $40 (3)
$40 to $45 Filter (3)
$40 to $45 (3)
$45 to $50 Filter (1)
$45 to $50 (1)
$50 to $60 Filter (4)
$50 to $60 (4)
See More
Home
Heating Supplies & Parts
Boiler Parts
Weil McLain Boiler Parts
Weil McLain CGA Boiler Parts
Weil McLain CGA Boiler Parts
FIND PARTS FOR YOUR UNIT
192 items
FILTER
Grid
List
Sort: Top Sellers
512-050-230 Compare Checkbox
Compare
Rollout Thermal Fuse Element, 228°C, 512-050-230
SKU:
512-050-230
Weil-McLain
SKU:
512-050-230
Brand:
Weil-McLain
(49)
–
+
$30.28
each
ADD TO CART
Add to List
In Stock
Get 41 by
Tue, Jul 7
Total Available: 151
In Stock
Get 41 by
Tue, Jul 7
Total Available: 151
Add to List
511-330-218 Compare Checkbox
Compare
Pilot Burner Assembly, 511-330-218
SKU:
511-330-218
Weil-McLain
SKU:
511-330-218
Brand:
Weil-McLain
(44)
–
+
$98.80
each
ADD TO CART
Add to List
In Stock
Get 70 by
Tue, Jul 7
Total Available: 320
In Stock
Get 70 by
Tue, Jul 7
Total Available: 320
Add to List
560-742-860 Compare Checkbox
Compare
Pilot Tubing w/ Compression Fittings, 22-3/4" Long, 560-742-860
SKU:
560-742-860
Weil-McLain
SKU:
560-742-860
Brand:
Weil-McLain
(46)
–
+
$22.28
each
ADD TO CART
Add to List
In Stock
Get 103 by
Tue, Jul 7
Total Available: 548
In Stock
Get 103 by
Tue, Jul 7
Total Available: 548
Add to List
510-312-167 Compare Checkbox
Compare
Transformer-Relay, 120/24V, 510-312-167
SKU:
510-312-167
Weil-McLain
SKU:
510-312-167
Brand:
Weil-McLain
(54)
–
+
$141.81
each
ADD TO CART
Add to List
In Stock
Get 12 by
Tue, Jul 7
Total Available: 108
In Stock
Get 12 by
Tue, Jul 7
Total Available: 108
Add to List
511-724-254 Compare Checkbox
Compare
30" Thermocouple (Screw-In) for CG, EG, EGH, CGA Boilers, 511-724-254
SKU:
511-724-254
Weil-McLain
SKU:
511-724-254
Brand:
Weil-McLain
(28)
–
+
$43.62
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Jul 7
Total Available: 36
In Stock
Get 2 by
Tue, Jul 7
Total Available: 36
Add to List
511-330-273 Compare Checkbox
Compare
Pilot Assembly Kit - (Includes Orifice, and Pilot Tubing), 511-330-273
SKU:
511-330-273
Weil-McLain
SKU:
511-330-273
Brand:
Weil-McLain
(5)
–
+
$55.34
each
ADD TO CART
Add to List
In Stock
Get 8 by
Tue, Jul 7
Total Available: 82
In Stock
Get 8 by
Tue, Jul 7
Total Available: 82
Add to List
510-300-013 Compare Checkbox
Compare
Spill Switch w/ Reset, 210°F, 510-300-013
SKU:
510-300-013
Weil-McLain
SKU:
510-300-013
Brand:
Weil-McLain
(5)
–
+
$18.51
each
ADD TO CART
Add to List
In Stock
Get 7 by
Tue, Jul 7
Total Available: 68
In Stock
Get 7 by
Tue, Jul 7
Total Available: 68
Add to List
381-356-589 Compare Checkbox
Compare
Supply Temperature Sensor, 381-356-589
SKU:
381-356-589
Weil-McLain
SKU:
381-356-589
Brand:
Weil-McLain
(2)
–
+
$69.20
each
ADD TO CART
Add to List
In Stock
Get 4 by
Tue, Jul 7
Total Available: 62
In Stock
Get 4 by
Tue, Jul 7
Total Available: 62
Add to List
510-312-250 Compare Checkbox
Compare
Operating Temperature Control (All Sizes), 510-312-250
SKU:
510-312-250
Weil-McLain
SKU:
510-312-250
Brand:
Weil-McLain
(17)
–
+
$183.47
each
ADD TO CART
Add to List
In Stock
Get 16 by
Tue, Jul 7
Total Available: 72
In Stock
Get 16 by
Tue, Jul 7
Total Available: 72
Add to List
510-300-014 Compare Checkbox
Compare
Spill Switch w/ Manual Reset, 240°F for CG, CGA, CGx Boilers, 510-300-014
SKU:
510-300-014
Weil-McLain
SKU:
510-300-014
Brand:
Weil-McLain
(11)
–
+
$42.80
each
ADD TO CART
Add to List
In Stock
Get 8 by
Tue, Jul 7
Total Available: 41
In Stock
Get 8 by
Tue, Jul 7
Total Available: 41
Add to List
380-000-000 Compare Checkbox
Compare
Combination Pressure-Temperature Gauge Kit, 380-000-000
SKU:
380-000-000
Weil-McLain
SKU:
380-000-000
Brand:
Weil-McLain
(9)
–
+
$53.10
each
ADD TO CART
Add to List
In Stock
Get 13 by
Tue, Jul 7
Total Available: 60
In Stock
Get 13 by
Tue, Jul 7
Total Available: 60
Add to List
381-330-039 Compare Checkbox
Compare
Control Module - Natural Gas For Series CGa-3, 381-330-039
SKU:
381-330-039
Weil-McLain
SKU:
381-330-039
Brand:
Weil-McLain
–
+
$283.77
each
ADD TO CART
Add to List
In Stock
Get 9 by
Tue, Jul 7
Total Available: 92
In Stock
Get 9 by
Tue, Jul 7
Total Available: 92
Add to List
510-811-644 Compare Checkbox
Compare
Natural Gas Pilot Replacement Kit for CGA, CG Boilers (All Sizes), 510-811-644
SKU:
510-811-644
Weil-McLain
SKU:
510-811-644
Brand:
Weil-McLain
(17)
–
+
$202.53
each
ADD TO CART
Add to List
In Stock
Get 4 by
Tue, Jul 7
Total Available: 17
In Stock
Get 4 by
Tue, Jul 7
Total Available: 17
Add to List
381-356-578 Compare Checkbox
Compare
Transformer for CGA-4, Series 2, 381-356-578
SKU:
381-356-578
Weil-McLain
SKU:
381-356-578
Brand:
Weil-McLain
(9)
–
+
$39.60
each
ADD TO CART
Add to List
In Stock
Get 6 by
Tue, Jul 7
Total Available: 54
In Stock
Get 6 by
Tue, Jul 7
Total Available: 54
Add to List
511-044-360 Compare Checkbox
Compare
Gas Control Valve For CG, EG, CGA Boilers (Sizes 25-6), 511-044-360
SKU:
511-044-360
Weil-McLain
SKU:
511-044-360
Brand:
Weil-McLain
(14)
–
+
$207.04
each
ADD TO CART
Add to List
In Stock
Get 8 by
Tue, Jul 7
Total Available: 23
In Stock
Get 8 by
Tue, Jul 7
Total Available: 23
Add to List
510-350-223 Compare Checkbox
Compare
Plug In Relay w/ 24V Holding Coil, 510-350-223
SKU:
510-350-223
Weil-McLain
SKU:
510-350-223
Brand:
Weil-McLain
(48)
–
+
$45.20
each
ADD TO CART
Add to List
In Stock
Get 6 by
Tue, Jul 7
Total Available: 26
In Stock
Get 6 by
Tue, Jul 7
Total Available: 26
Add to List
510-512-337 Compare Checkbox
Compare
Automatic Vent Damper Motor Operator, 24V, 510-512-337
SKU:
510-512-337
Weil-McLain
SKU:
510-512-337
Brand:
Weil-McLain
(18)
–
+
$292.50
each
ADD TO CART
Add to List
In Stock
Get 7 by
Tue, Jul 7
Total Available: 24
In Stock
Get 7 by
Tue, Jul 7
Total Available: 24
Add to List
511-330-079 Compare Checkbox
Compare
Ignition Control Module for CGA Boilers (All Sizes), 511-330-079
SKU:
511-330-079
Weil-McLain
SKU:
511-330-079
Brand:
Weil-McLain
(11)
–
+
$309.44
each
ADD TO CART
Add to List
In Stock
Get 18 by
Tue, Jul 7
Total Available: 36
In Stock
Get 18 by
Tue, Jul 7
Total Available: 36
Add to List
512-200-077 Compare Checkbox
Compare
Burner, Tubular Stainless Steel (Regular) for AHE, CG, CGA Boilers, 512-200-077
SKU:
512-200-077
Weil-McLain
SKU:
512-200-077
Brand:
Weil-McLain
(14)
–
+
$25.65
each
ADD TO CART
Add to List
In Stock
Get 60 by
Tue, Jul 7
Total Available: 288
In Stock
Get 60 by
Tue, Jul 7
Total Available: 288
Add to List
512-200-078 Compare Checkbox
Compare
Stainless Steel Burner w/ Pilot Bracket for CG, CGA, CGi Boilers, 512-200-078
SKU:
512-200-078
Weil-McLain
SKU:
512-200-078
Brand:
Weil-McLain
(5)
–
+
$33.25
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tue, Jul 7
Total Available: 12
In Stock
Get 1 by
Tue, Jul 7
Total Available: 12
Add to List
511-842-370 Compare Checkbox
Compare
Control Transformer, 24V, 511-842-370
SKU:
511-842-370
Weil-McLain
SKU:
511-842-370
Brand:
Weil-McLain
(8)
–
+
$64.65
each
ADD TO CART
Add to List
In Stock
Get 6 by
Tue, Jul 7
Total Available: 23
In Stock
Get 6 by
Tue, Jul 7
Total Available: 23
Add to List
591-391-995 Compare Checkbox
Compare
Sensor/LWCO Wiring Harness, 591-391-995
SKU:
591-391-995
Weil-McLain
SKU:
591-391-995
Brand:
Weil-McLain
–
+
$18.01
each
ADD TO CART
Add to List
In Stock
Get 5 by
Wed, Jul 8
Total Available: 6
In Stock
Get 5 by
Wed, Jul 8
Total Available: 6
Add to List
591-391-862 Compare Checkbox
Compare
Standing Pilot Wiring Harness for CG, CGA Boilers, 591-391-862
SKU:
591-391-862
Weil-McLain
SKU:
591-391-862
Brand:
Weil-McLain
(5)
–
+
$77.58
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tue, Jul 7
Total Available: 7
In Stock
Get 1 by
Tue, Jul 7
Total Available: 7
Add to List
511-330-242 Compare Checkbox
Compare
Pilot Assembly, 511-330-242
SKU:
511-330-242
Weil-McLain
SKU:
511-330-242
Brand:
Weil-McLain
–
+
$99.00
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Jul 7
Total Available: 14
In Stock
Get 2 by
Tue, Jul 7
Total Available: 14
Add to List
383-600-091 Compare Checkbox
Compare
ASME Pressure Relief Valve (Boiler Sizes 85-125), 383-600-091
SKU:
383-600-091
Weil-McLain
SKU:
383-600-091
Brand:
Weil-McLain
(5)
–
+
$53.10
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Jul 7
Total Available: 4
In Stock
Get 2 by
Tue, Jul 7
Total Available: 4
Add to List
511-044-256 Compare Checkbox
Compare
Combination Natural Gas Valve, 511-044-256
SKU:
511-044-256
Weil-McLain
SKU:
511-044-256
Brand:
Weil-McLain
(1)
–
+
$254.70
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Jul 7
Total Available: 8
In Stock
Get 2 by
Tue, Jul 7
Total Available: 8
Add to List
591-392-035 Compare Checkbox
Compare
Wire Harness - Sensor, 591-392-035
SKU:
591-392-035
Weil-McLain
SKU:
591-392-035
Brand:
Weil-McLain
(1)
–
+
$23.63
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Jul 7
Total Available: 10
In Stock
Get 2 by
Tue, Jul 7
Total Available: 10
Add to List
512-200-079 Compare Checkbox
Compare
Stainless Steel Burner w/ Pilot Bracket for CG, CGA, CGi Boilers (Natural Gas), 512-200-079
SKU:
512-200-079
Weil-McLain
SKU:
512-200-079
Brand:
Weil-McLain
(2)
–
+
$41.09
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Jul 7
Total Available: 4
In Stock
Get 2 by
Tue, Jul 7
Total Available: 4
Add to List
591-391-977 Compare Checkbox
Compare
Wiring Harness (Controls to Control Module), 591-391-977
SKU:
591-391-977
Weil-McLain
SKU:
591-391-977
Brand:
Weil-McLain
–
+
$30.94
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tue, Jul 7
Total Available: 5
In Stock
Get 1 by
Tue, Jul 7
Total Available: 5
Add to List
510-811-362 Compare Checkbox
Compare
NG to LP Conversion Kit For CGa-25, CGa-3, CGa-4, CGa-5, and CGa-6 Boilers, 510-811-362
SKU:
510-811-362
Weil-McLain
SKU:
510-811-362
Brand:
Weil-McLain
(1)
–
+
$349.29
each
ADD TO CART
Add to List
In Stock
Get 4 by
Tue, Jul 7
Total Available: 5
In Stock
Get 4 by
Tue, Jul 7
Total Available: 5
Add to List
511-044-356 Compare Checkbox
Compare
Valve-G 3/4x3/4 LP VR8304P4330, 511-044-356
SKU:
511-044-356
Weil-McLain
SKU:
511-044-356
Brand:
Weil-McLain
–
+
$441.54
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Jul 7
Total Available: 8
In Stock
Get 2 by
Tue, Jul 7
Total Available: 8
Add to List
381-359-447 Compare Checkbox
Compare
Control Module and Wiring Harness Service Kit, 381-359-447
SKU:
381-359-447
Weil-McLain
SKU:
381-359-447
Brand:
Weil-McLain
–
+
$17.54
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tue, Jul 7
Total Available: 13
In Stock
Get 1 by
Tue, Jul 7
Total Available: 13
Add to List
311-103-845 Compare Checkbox
Compare
Intermediate Section 51125, 311-103-845
SKU:
311-103-845
Weil-McLain
SKU:
311-103-845
Brand:
Weil-McLain
–
+
$246.96
each
ADD TO CART
Add to List
In Stock
Get 3 by
Tue, Jul 7
Total Available: 8
In Stock
Get 3 by
Tue, Jul 7
Total Available: 8
Add to List
560-528-997 Compare Checkbox
Compare
Main Burner Orifice (2.0mm) for CG, CGA, CGi Boilers (Natural Gas), 560-528-997
SKU:
560-528-997
Weil-McLain
SKU:
560-528-997
Brand:
Weil-McLain
–
+
$11.00
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Jul 7
Total Available: 38
In Stock
Get 2 by
Tue, Jul 7
Total Available: 38
Add to List
381-800-474 Compare Checkbox
Compare
Vent Damper Assembly, 4", 381-800-474
SKU:
381-800-474
Weil-McLain
SKU:
381-800-474
Brand:
Weil-McLain
–
+
$356.78
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tue, Jul 7
Total Available: 10
In Stock
Get 1 by
Tue, Jul 7
Total Available: 10
Add to List
381-356-534 Compare Checkbox
Compare
KIT-S Valve-G LPSP 3/4NPT IP, 381-356-534
SKU:
381-356-534
Weil-McLain
SKU:
381-356-534
Brand:
Weil-McLain
–
+
$367.43
each
ADD TO CART
Add to List
In Stock
Get 3 by
Tue, Jul 7
Total Available: 7
In Stock
Get 3 by
Tue, Jul 7
Total Available: 7
Add to List
510-811-646 Compare Checkbox
Compare
LP Gas Pilot Replacement Kit for CGA, CG Boilers (Size E38A2), 510-811-646
SKU:
510-811-646
Weil-McLain
SKU:
510-811-646
Brand:
Weil-McLain
(1)
–
+
$283.06
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tue, Jul 7
Total Available: 2
In Stock
Get 1 by
Tue, Jul 7
Total Available: 2
Add to List
592-800-011 Compare Checkbox
Compare
2" Square Cut Seal, 592-800-011
SKU:
592-800-011
Weil-McLain
SKU:
592-800-011
Brand:
Weil-McLain
(2)
–
+
$12.00
each
ADD TO CART
Add to List
In Stock
Get 10 by
Tue, Jul 7
Total Available: 18
In Stock
Get 10 by
Tue, Jul 7
Total Available: 18
Add to List
450-021-245 Compare Checkbox
Compare
Draft Hood for CG, CGA, CGx Boilers, 450-021-245
SKU:
450-021-245
Weil-McLain
SKU:
450-021-245
Brand:
Weil-McLain
–
+
$285.64
each
ADD TO CART
Add to List
In Stock
Get 2 by
Wed, Jul 8
In Stock
Get 2 by
Wed, Jul 8
Add to List
381-354-535 Compare Checkbox
Compare
CGa Natural Gas High Altitude Conversion Kit, 381-354-535
SKU:
381-354-535
Weil-McLain
SKU:
381-354-535
Brand:
Weil-McLain
(2)
–
+
$69.32
each
ADD TO CART
Add to List
In Stock
Get 2 by
Fri, Jul 10
In Stock
Get 2 by
Fri, Jul 10
Add to List
383-600-063 Compare Checkbox
Compare
ASME Pressure Relief Valve, 30 PSI, 3/4" NPT Female, 383-600-063
SKU:
383-600-063
Weil-McLain
SKU:
383-600-063
Brand:
Weil-McLain
–
+
$213.25
each
ADD TO CART
Add to List
Backorder
Get it by
Tue, Aug 4 - Tue, Sep 1
Backorder
Get it by
Tue, Aug 4 - Tue, Sep 1
Add to List
321-114-286 Compare Checkbox
Compare
Replacement Section Assembly, 321-114-286
SKU:
321-114-286
Weil-McLain
SKU:
321-114-286
Brand:
Weil-McLain
(1)
–
+
$1,246.89
each
ADD TO CART
Add to List
In Stock
Get 2 by
Wed, Jul 8 - Fri, Jul 10
In Stock
Get 2 by
Wed, Jul 8 - Fri, Jul 10
Add to List
511-210-423 Compare Checkbox
Compare
Cock Drain 3/4NPT 1-1/2 Shank, 511-210-423
SKU:
511-210-423
Weil-McLain
SKU:
511-210-423
Brand:
Weil-McLain
–
+
$37.21
each
ADD TO CART
Add to List
Backorder
Get it by
Tue, Aug 4 - Tue, Sep 1
Backorder
Get it by
Tue, Aug 4 - Tue, Sep 1
Add to List
383-301-211 Compare Checkbox
Compare
Control Module (Natural Gas), 383-301-211
SKU:
383-301-211
Weil-McLain
SKU:
383-301-211
Brand:
Weil-McLain
–
+
$209.61
each
ADD TO CART
Add to List
Out of Stock
Get it by
Tue, Jul 21 - Tue, Jul 28
Out of Stock
Get it by
Tue, Jul 21 - Tue, Jul 28
Add to List
633-500-137 Compare Checkbox
Compare
Thermowell, 633-500-137
SKU:
633-500-137
Weil-McLain
SKU:
633-500-137
Brand:
Weil-McLain
–
+
$98.80
each
ADD TO CART
Add to List
Backorder
Get it by
Tue, Aug 4 - Tue, Sep 1
Backorder
Get it by
Tue, Aug 4 - Tue, Sep 1
Add to List
510-811-946 Compare Checkbox
Compare
NG to LP Conversion Kit for CGa-25 - CGa-7, 510-811-946
SKU:
510-811-946
Weil-McLain
SKU:
510-811-946
Brand:
Weil-McLain
–
+
$432.37
each
ADD TO CART
Add to List
Backorder
Get it by
Tue, Aug 4 - Tue, Sep 1
Backorder
Get it by
Tue, Aug 4 - Tue, Sep 1
Add to List
381-330-038 Compare Checkbox
Compare
LWCO Control Module for CGa-3, 381-330-038
SKU:
381-330-038
Weil-McLain
SKU:
381-330-038
Brand:
Weil-McLain
–
+
$267.32
each
ADD TO CART
Add to List
In Stock
Get 1 by
Thu, Jul 9
In Stock
Get 1 by
Thu, Jul 9
Add to List
321-114-289 Compare Checkbox
Compare
Replacement Section Assembly, 321-114-289
SKU:
321-114-289
Weil-McLain
SKU:
321-114-289
Brand:
Weil-McLain
–
+
$1,603.50
each
ADD TO CART
Add to List
In Stock
Get 1 by
Thu, Jul 9 - Mon, Jul 13
In Stock
Get 1 by
Thu, Jul 9 - Mon, Jul 13
Add to List
1
2
3
4
Refresh
×
Video