Select a oversize options available below for more info:
Compression ring sizes are .0591" and one piece oil ring .1181" on 21253 pistons giving 9.7cr on 1275cc. Also fits P21963 pistons as fitted to some Metro's
Question:
My 1996 mini has pistons with the following number21963 PM4 A25. I would like to get 0.010 oversized rings.
Answer:
These pistons use 2x 1.5mm rings and 1 3mm oil ring - same as the 21253 pistons - which we have rings for HERE.
They are available in STD, +.20, +.40, and +.60
They are available in STD, +.20, +.40, and +.60
Mini Mania Tech Team
The Classic Mini Parts and Accessories Experts
![[1251 E.020] Austin-4 Cyl](/images_temp/5050101deves-piston-rings-box.jpg "[1251 E.020] Austin-4 Cyl")
![[1251 E.040] Austin-4 Cyl](/images_temp/5050101zznone.jpg "[1251 E.040] Austin-4 Cyl")
![[1251 E Std] Austin-4 Cyl](/images/zznone.jpg "[1251 E Std] Austin-4 Cyl")
Compression ring sizes are .0591" and one piece oil ring .1181" on 21253 pistons giving 9.7cr on 1275cc. Also fits P21963 pistons as fitted to some Metro's
Question:
Purchased a 21253-60-co piston set and damaged the oil ring on installation, do you have 60+ ring sets I can purchase?
Oil ring is a 3pc 3mm
Answer:
We offer rings for the original 21253 pistons here: https://www.minimania.com/part/R41570-60/Piston-Ring-Set-060-For-21253-Piston-Or-21962The dimension for the oil ring are in the description - see if it matches your County Brand type.
Mini Mania Tech Team
The Classic Mini Parts and Accessories Experts
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