Freeze Plug Size Chart

Freeze-Plug-Factory_Constants

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

PART NO SIZE MILLIMETER
101 5/32 3.969
102 5/16 7.939
103 3/8 9.525
104 13/32 10.32
106 27/64 10.72
107 7/16 11.11
108 29/64 11.51
109 1/2 12.7
111 1/2 O.S. 12.3
112 33/64 13.1
113 17/32 13.49
114 9/16 14.29
116 19/32 15.08
117 39/64 15.48
118 5/8 15.88
119 41/64 16.27
120 21/32 16.67
121 45/64 17.86
123 11/16 17.46
124 3/4 19.05
125 13/16 20.64
126 7/8 22.23
128 29/32 23.02
129 15/16 23.81
130 1 25.4
131 1 1/64 25.8
132 1 1/16 26.99
133 1 1/8 28.58
135 1 3/16 30.16
136 1 7/32 30.96
137 1 1/4 31.75
138 1 5/16 33.34
139 1 21/64 33.74
140 1 3/8 34.93
142 1 25/64 35.33
143 1 7/16 36.51
PART NO SIZE MILLIMETER
144 1 31/64 37.71
146 1 1/2 38.1
147 1 9/16 39.69
148 1 5/8 41.28
149 1 41/64 41.68
151 1 11/16 42.86
152 1 45/64 43.27
153 1 3/4 44.45
154 1 49/64 44.86
155 1 47/64 44.05
156 1 25/32 45.24
157 1 51/64 45.65
158 1 13/16 46.04
160 1 7/8 47.63
161 1 29/32 48.42
162 1 59/64 48.83
163 1 15/16 49.21
165 1 61/64 49.62
166 1 31/32 50.01
167 1 63/64 50.42
170 2 50.8
171 2 1/64 51.21
172 2 3/64 52
173 2 1/16 52.39
175 2 3/32 53.19
176 2 7/64 53.59
177 2 1/8 53.98
178 2 9/64 54.38
180 2 5/32 54.78
181 2 3/16 55.56
182 2 13/64 55.97
183 2 7/32 56.37
184 2 1/4 57.15
185 2 3/8 60.33
186 2 1/2 63.5
187 2 9/16 65.09

Steel Cup Plugs

PART NO SIZE MILLIMETER
101 S 5/32 3.969
102 S 5/16 7.939
103 S 3/8 9.525
104 S 13/32 10.32
106 S 27/64 10.72
107 S 7/16 11.11
108 S 29/64 11.51
109 S 1/2 12.7
111 S 1/2 O.S. 12.3
112 S 33/64 13.1
113 S 17/32 13.49
114 S 9/16 14.29
116 S 19/32 15.08
117 S 39/64 15.48
118 S 5/8 15.88
119 S 41/64 16.27
120 S 21/32 16.67
121 S 45/64 17.86
123 S 11/16 17.46
124 S 3/4 19.05
125 S 13/16 20.64
126 S 7/8 22.23
128 S 29/32 23.02
129 S 15/16 23.81
130 S 1 25.4
131 S 1 1/64 25.8
132 S 1 1/16 26.99
133 S 1 1/8 28.58
135 S 1 3/16 30.16
136 S 1 7/32 30.96
137 S 1 1/4 31.75
138 S 1 5/16 33.34
139 S 1 21/64 33.74
140 S 1 3/8 34.93
142 S 1 25/64 35.33
143 S 1 7/16 36.51
PART NO SIZE MILLIMETER
144 S 1 31/64 37.71
146 S 1 1/2 38.1
147 S 1 9/16 39.69
148 S 1 5/8 41.28
149 S 1 41/64 41.68
151 S 1 11/16 42.86
152 S 1 45/64 43.27
153 S 1 3/4 44.45
154 S 1 49/64 44.86
155 S 1 47/64 44.05
156 S 1 25/32 45.24
157 S 1 51/64 45.65
158 S 1 13/16 46.04
160 S 1 7/8 47.63
161 S 1 29/32 48.42
162 S 1 59/64 48.83
163 S 1 15/16 49.21
165 S 1 61/64 49.62
166 S 1 31/32 50.01
167 S 1 63/64 50.42
170 S 2 50.8
171 S 2 1/64 51.21
172 S 2 3/64 52
173 S 2 1/16 52.39
175 S 2 3/32 53.19
176 S 2 7/64 53.59
177 S 2 1/8 53.98
178 S 2 9/64 54.38
180 S 2 5/32 54.78
181 S 2 3/16 55.56
182 S 2 13/64 55.97
183 S 2 7/32 56.37
184 S 2 1/4 57.15
185 S 2 3/8 60.33
186 S 2 1/2 63.5
187 S 2 9/16 65.09

Stainless Steel Cup Plugs

PART NO SIZE MILLIMETER
118 SS 5/8 15.88
123 SS 11/16 17.46
124 SS 3/4 19.05
125 SS 13/16 20.64
126 SS 7/8 22.23
129 SS 15/16 23.81
130 SS 1 25.4
137 SS 1 1/4 31.75
PART NO SIZE MILLIMETER
140 SS 1 3/8 34.93
146 SS 1 1/2 38.1
147 SS 1 9/16 39.69
148 SS 1 5/8 41.28
149 SS 1 41/64 41.68
153 SS 1 3/4 44.45
160 SS 1 7/8 47.63
170 SS 2 50.8

All Other Sizes Please Request

Concave Cup Plugs

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

All Other Sizes Please Request

Metric Cup Plugs

PART NO SIZE MILLIMETER
200 11 millimetric
202 12 millimetric
203 12.7 millimetric
204 14,0 millimetric
205 16 millimetric
206 17 millimetric
207 13 millimetric
203 18 millimetric
210 20 millimetric
212 21 millimetric
214 22.C millimetric
216 24 millimetric
218 25 millimetric
220 25.1 millimetric
222 25.7 millimetric
224 28 millimetric
226 29 millimetric
228 30 millimetric
230 31 millimetric
232 32 millimetric
234 32.4 millimetric
236 33 millimetric
238 34.1 millimetric
240 34.3 millimetric
242 35 millimetric
244 35.4 millimetric
PART NO SIZE MILLIMETER
246 35.5 millimetric
248 36 millimetric
250 36.5 millimetric
252 37 millimetric
254 38.4 millimetric
256 40 millimetric
257 40.8 millimetric
258 40.3 millimetric
260 40.5 millimetric
261 41 millimetric
262 41.5 millimetric
264 42 millimetric
266 42.3 millimetric
268 4d,0 millimetric
270 44.5 millimetric
272 44.9 millimetric
274 45 millimetric
276 45.5 millimetric
278 47 millimetric
280 49.1 millimetric
282 4S.5 millimetric
284 50 millimetric
286 50.4 millimetric
287 52 millimetric
288 52.5 millimetric
295 56.7 millimetric

Pipe Plugs

PART NO SIZE MILLIMETER
500 1/16 C.S.Hex
501 1/8 C.S.Hex
502 1/4 C.S.Hex
PART NO SIZE MILLIMETER
503 3/8 C.S.Hex
503e 3/8 e 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.