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2012 Mazda water pump pulley bolt size

Old Dec 20, 2025 | 06:07 PM
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Default 2012 Mazda water pump pulley bolt size

Spent a few minutes looking for the generic size of these 3 bolts. They are M8-1.125x16 for anyone looking to get them at Home Depot or hardware store. Get the M8 split washer too and the head is now a 13mm wrench instead of a 10mm. Torque spec is unknown but I would imagine maybe 20 ft/lbs? I bought 10.2 rated bolts.
 
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Old Dec 20, 2025 | 06:32 PM
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All fasteners on most all vehicle of any type can use the standard torque value charts . There are very few exceptions to this .
naturally common sense and basic understanding of materials is advised.

It is also a good idea to always chase the thread holes before reinstalling old or new fasteners.

While using a lock washer seems like common sense it really is not advisable on most areas of an engine. There is an engineering reason why you don’t see them to often on engines and many other areas of a vehicle .

Mazda= water pump 20—26 N·m {2.1—2.6 kgf·m, 15—19 ft·lbf}
Pulley 8—11 N·m {82—112 kgf·cm, 71—97 in·lbf}
 

Last edited by Callisto; Dec 21, 2025 at 12:23 PM.
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