![Norco 941841 SAE O-RING, 3/4"-16 [MALE] (CHEVY DURAMAX W/ALLISON TRANS. - 2001 & NEWER)](http://mprtools.com/cdn/shop/files/The_Mechanics_ToolBox_1_38ca757e-b7e7-4a1d-990f-eb4c9b809872_500x.webp?v=1750916148)
![Norco 941842 SAE O-RING, 3/4"-16 [FEMALE] (CHEVY DURAMAX W/ALLISON TRANS. - 2001 & NEWER)](http://mprtools.com/cdn/shop/files/The_Mechanics_ToolBox_1_b369e606-e482-4835-b2bc-024a97bce646_500x.webp?v=1750916144)
I work as a truck transport mechanic and can say this fits perfeclty under any truck ive had to work on. Ive bought this a couple times as ive previously ran over a few on accident, but otherwise its built to last. Also worth noting i accidentally ordered the XL one, and when i contacted MPR to cancel they got back to me quickly with no issues.
I like this set👍