Click on Part number to purchase Freeze Plugs

The Freeze Plug Factory carries over 250 different plugs in stock. We carry them in several materials and finishes. Can’t find your size? No problem! The Freeze Plug Factory can custom make any size for you! Trying to find plugs for a De Soto or a Studebaker? How about those special camshaft plugs? The Freeze Plug Factory will get you out of the jam. Let us help you, we will ship them out immediately.

Brass Cup Plugs

To Order Click on Part #


For volume orders summit contact form

 
Part No.
Plug Size.
Rec Bore Measurement.
5/16
.313
3/8
.375
13/32
.406
27/64
.422
7/16
.438
29/64
.453
1/2
.500
33/64
.516
17/32
.531
9/16
.563
37/64
.578
19/32
.593
39/64
.609
5/8
.625
41/64
.640
21/32
.656
11/16
.688
3/4
.750
13/16
.813
7/8
.875
29/32
.906
15/16
.938
1
1.0000
1 1/16
1.0625
1 1/8
1.1250
1 3/16
1.1875
1 7/32
1.2188
1 1/4
1.2500
1 5/16
1.3125
1 21/64
1.328
1 3/8
1.375
1 7/16
1.4375
1 31/64
1.4843
1 1/2
1.500
1 9/16
1.5625
1 5/8
1.625
1 41/64
1.6406
1 11/16
1.6875
1 45/64
1.703
1 3/4
1.750
1 49/64
1.766
1 25/32
1.781
1 51/64
1.796
1 13/16
1.813
1 7/8
1.875
1 29/32
1.906
1 59/64
1.922
1 15/16
1.938
1 61/64
1.953
1 31/32
1.969
1 63/64
1.984
2
2.000
2 1/64
2.016
2 3/64
2.047
2 1/16
2.063
2 3/32
2.094
2 7/64
2.109
2 1/8
2.125
2 9/64
2.141
2 5/32
2.156
2 3/16
2.188
2 13/64
2.203
2 7/32
2.219
2 1/4
2.250
2 3/8
2.375
2 1/2
2.500
2 9/16
2.563
2 3/4
2.750

Steel Cup Plugs

To Order Click on Part #


For volume orders summit contact form

 
Part No.
Plug Size.
Rec Bore Measurement.
5/16
.313
3/8
.375
13/32
.406
27/64
.422
7/16
.438
29/64
.453
1/2
.500
1/2
.500
33/64
.515
17/32
.531
9/16
.563
19/32
.593
39/64
.609
5/8
.625
41/64
.640
21/32
.656
11/16
.688
3/4
.750
13/16
.813
7/8
.875
29/32
.906
15/16
.938
1
1.0000
1 1/16
1.063
1 1/8
1.125
1 3/16
1.188
1 7/32
1.219
1 1/4
1.250
1 5/16
1.313
1 21/64
1.328
1 3/8
1.375
1 7/16
1.438
1 31/32
1.969
37/64
.578
1 1/2
1.500
1 9/16
1.563
1 5/8
1.625
1 41/64
1.641
1 11/16
1.688
1 45/64
1.703
1 3/4
1.750
1 49/64
1.766
1 25/32
1.781
1 51/64
1.796
1 13/16
1.813
1 7/8
1.875
1 29/32
1.906
1 59/64
1.922
1 15/16
1.938
1 61/64
1.953
1 31/32
1.969
1 63/64
1.984
2
2.000
2 1/64
2.016
2 3/64
2.047
2 1/16
2.063
2 3/32
2.094
2 7/64
2.109
2 1/8
2.125
2 9/64
2.141
2 5/32
2.156
2 3/16
2.188
2 13/64
2.203
2 7/32
2.219
2 1/4
2.250
2 3/8
2.375
2 1/2
2.500
2 9/16
2.563
2 3/4
2.75

Stainless Steel Cup Plugs

To Order Click on Part #


For volume orders summit contact form

 
PART NO
SIZE
Rec Bore Measurement
3/4
19.05
7/8
22.23
1
25.4
1 1/8
28.58
1 1/4
31.75
1 3/8
34.93
1 1/2
38.1
1 5/8
41.28
1 3/4
44.45
34.3 MM
1.350
34.3 esp
1.330
56 mm
2.204

Concave Cup Plugs

PART NO
SIZE
130 CC
1"
137 CC
1" 1/4
140 CC
1" 3/8
146 CC
1" 1/2
148 CC
1" 5/8
153 CC
1" 3/4
170 CC
2"

Brass Metric Cup Plugs

To Order Click on Part #


For volume orders summit contact form

 
Part No.
Plug Size.
Rec Bore Measurement.
10.8 MM
.425
11 MM
.433
12 MM
.472
14 MM
.551
16 MM
.63
16.5MM
.65
17 MM
.669
18 MM
.709
19 MM
.748
20 MM
.787
21 MM
.827
22 MM
.866
23 MM
.906
24 MM
.945
25 MM
.984
25.1 MM
.988
26 MM
1.024
27 MM
1.063
28 MM
1.102
29 MM
1.142
30 MM
1.1811
31 MM
1.22
31.5 MM
1.24
32 MM
1.26
32.4 MM
1.276
33 MM
1.299
34 MM
1.339
34.3 MM
1.35
35 MM
1.378
35.4 MM
1.394
35.5 MM
1.398
36 MM
1.417
36.5 MM
1.437
37 MM
1.457
38 MM
1.496
38.4 MM
1.512
39 MM
1.535
40 MM
1.575
40.5 MM
1.594
41.5 MM
1.634
42.3 MM
1.665
44 MM
1.732
44.9 MM
1.768
45 MM
1.772
45.5 MM
1.7913
47 MM
1.85
49.1 MM
1.933
49.5 MM
1.949
50 MM
1.969
50.4 MM
1.984
51 MM
2.008
52.5 MM
2.067
56 MM
2.205
58 MM
2.283

Steel Metric Cup Plugs

To Order Click on Part #


For volume orders summit contact form

 
Part No.
Plug Size.
Rec Bore Measurement.
10.8 MM
.425
11 MM
.433
12 MM
.472
14 MM
.551
16 MM
.63
16.5 MM
.65
17 MM
.669
18 MM
.709
19 MM
.748
20 MM
.787
21 MM
.827
22 MM
.866
23 MM
.906
24 MM
.945
25 MM
.984
25.1 MM
.988
26 MM
1.024
27 MM
1.063
28 MM
1.102
29 MM
1.142
30 MM
1.181
31 MM
1.22
31.5 MM
1.24
32 MM
1.26
32.4 MM
1.276
33 MM
1.299
34 MM
1.339
34.3 MM
1.35
35 MM
1.378
35.4 MM
1.394
35.5 MM
1.398
36 MM
1.417
36.5 MM
1.437
37 MM
1.457
38 MM
1.496
38.4 MM
1.512
39 MM
1.535
40 MM
.315
40.5 MM
.315
41.5 MM
.315
42.3 MM
.315
44 MM
.315
44.9 MM
.315
45 MM
.315
45.5 MM
.315
47 MM
.315
49.1 MM
.315
49.5 MM
.315
50 MM
.315
50.4 MM
.315
51 MM
.315
52.5 MM
.315
56 MM
.315
58 MM
.315

Pipe Plugs

PART NO
SIZE
MILLIMETER
500
1/16
C.S.Hex
501
1/8
C.S.Hex
502
1/4
C.S.Hex
503
3/8
C.S.Hex
503e
3/8 e (teflon)
C.S.Hex
504
1/2
C.S.Hex

Since 1967, Prokar continues to manufacture excellent quality plugs. Each plug is made to specifications as provided by the individual auto manufacturer. The Freeze Plug Factory will not be liable for any or all damages from plugs manufactured to the specifications of the auto manufacturer.