stilltwisted Posted September 4, 2009 Report Share Posted September 4, 2009 im helping a friend change his L28e does anyone know the dia. of freeze plugs for these eng. i would measure these but my digital caliper has a dead batt rock auto has differnt sizes listed thanks brent Quote Link to comment
dgi Posted September 4, 2009 Report Share Posted September 4, 2009 My L20b is Dorman part # 556-095 picked them up at O'Reilly Suspect it is the same for the L28e Quote Link to comment
MAG58 Posted September 5, 2009 Report Share Posted September 5, 2009 That's probably because there are 3 different sizes. The standard plugs on the outside, one a little smaller under the timing rail, and a big ol' beast at the back of the block. If nobody answers before tomorrow morning I'll go check. Quote Link to comment
stilltwisted Posted September 5, 2009 Author Report Share Posted September 5, 2009 thanks Quote Link to comment
banzai510(hainz) Posted September 5, 2009 Report Share Posted September 5, 2009 40mmm Quote Link to comment
MAG58 Posted September 6, 2009 Report Share Posted September 6, 2009 Yep. And in the event you have multiple choices, the side and rear plugs are all concave, while the freeze plug under the guide rail is flat. Quote Link to comment
hang_510 Posted September 6, 2009 Report Share Posted September 6, 2009 i have a set of steel avail. Quote Link to comment
stilltwisted Posted September 6, 2009 Author Report Share Posted September 6, 2009 i got napa to order brass set for 18.80$ ,,thanks for all the help guys Quote Link to comment
jvb5577 Posted August 26, 2013 Report Share Posted August 26, 2013 Bringing up an old thread but I wanted to confirm that for a Z22e block that the brass freeze plugs need to be 40 too? This is also for the one on the rear of the block too? Quote Link to comment
datzenmike Posted August 26, 2013 Report Share Posted August 26, 2013 That's probably because there are 3 different sizes. The standard plugs on the outside, one a little smaller under the timing rail, and a big ol' beast at the back of the block. If nobody answers before tomorrow morning I'll go check. 11021-21000 welch plug all L and Z series, six used on the block including the very rear... 40mm. Replacement ones may be concave but Nissan parts are all the same. BTW these are not freeze or frost plugs, and though they might pop out if the block if the coolant should freeze, this is not their purpose. If you have ever seen or had a block freeze you'll know that they do not work. They are really core plugs for removing the internal casting sand. Quote Link to comment
Camtron Posted August 27, 2013 Report Share Posted August 27, 2013 Freeze plugs sounds baddasser than core plugs though. Quote Link to comment
datzenmike Posted August 27, 2013 Report Share Posted August 27, 2013 I call them freeze plugs too. 1 Quote Link to comment
jvb5577 Posted August 27, 2013 Report Share Posted August 27, 2013 11021-21000 welch plug all L and Z series, six used on the block including the very rear... 40mm. Replacement ones may be concave but Nissan parts are all the same. BTW these are not freeze or frost plugs, and though they might pop out if the block if the coolant should freeze, this is not their purpose. If you have ever seen or had a block freeze you'll know that they do not work. They are really core plugs for removing the internal casting sand. Always learn something new with you! Didn't know that. Thanks for the part number. 1 Quote Link to comment
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