Pistons & Rings

Original AE liner as used by BMC/Rover to restore worn or damaged block. Also known as a sleeve, this fits cylinders in all 1275 motors. Sold each. Machining required to

Pinston ring set for one (1) individaul piston. Genuine AE rings for popular AE 21253 Mini Cooper S replacement piston or A+ 21962 piston.

Set of Hastings piston rings, custom ground to fit Cosworth pistons. 1275cc +.040.

Genuine AE piston ring set for one (1) 20659KR 73.5mm 1380cc piston. Ring sizes: 1.5mm, 1.5mm and 4.00mm.

Set of three piston rings to fit one aftermarket 20950E flat top 998 piston.

Ring set for 1380cc 73.5mm Mega and Omega piston with 1.2mm top ring ring. Sold in a set of rings for a single piston.

Total Seal Piston ring set to fit JE 1275cc + 040. Bore size 2.820, ring thicknesses are 1.2mm, 1.2mm, 2.8mm.

Genuine AE/Federal Mogul/Goetze single piston ring set for 22463 A+ 998 3-ring pistons. For standard, top two rings are 1.49 mm, oil ring is 3.0 mm. Order 4 for a complete set.

Genuine AE-made ring sets to fit Omega and Mini Spares "Mega" pistons, such as C-AJJ3378 and C-AJJ3382. Available in + 020/040/060.

Genuine AE ring sets for common AE 21251 and far less common AE 21250 pistons. Most experienced mechanics will choose the original manufacturer's piston rings for a re-ring job. We

Original AE (now Goetze) ring sets for 20754 and 20773 replacement pistons, as typically found in 998cc A+ engines.

Original Goetze rings for 20950/20397/20398 piston, as typically found in pre-A+ 998cc and 1098cc engines. Four (4) rings, sold as single piston set.

Economical pistons for road-spec engine rebuilds, available in sizes from standard to .060" over. Sold per set of four (4).

Set of four (4) 1275 pistons for high-performance applications; includes lightweight wrist pins and top-quality rings. Dish size 6.5cc.

These purpose-made "big-bore" AE Hepolite 9cc pistons are ideal for adding displacement and torque to your A-series. Modern 3-ring design, dish-top, 1.4810" compression height; rings and pins included.

JE pistons are made in the USA and are suitable for full race applications. Forged. Price includes our own ring pack, with tapered pin and circlips. Flat top. Sold by

These 4-ring dish-top pistons give a 8.3 compression ratio. Can be used on either A-Series or A+ engines; Includes piston rings, wrist pins, and circlips.

These 3-ring flat-top pistons give a 9.7 compression ratio for improved performance. Can be used on either A-Series or A+ engines.

Made by a name-brand piston manufacturer, and are the perfect start for a road-going high-torque Mini engine. These are a hyper-eutectic cast piston, which means the silicon content is higher than usual, resulting in lower thermal expansion and more stable dimensions.

Dish top, 4-ring piston for 1098cc A-Series engines. Made in the EU by OE manufacturer Nural. As used in Mini Clubman, MG1100 Sedan, and others. Sold each.

AE dish-top 3-ring piston for road spec 1275 engines. 1.4689" compression height. Equivalent to Spridget, Austin America and 1275GT piston. Quality product from an OEM supplier.?Sold each, rings and pin

High compression, dish-top 3-ring 1275cc piston from OEM supplier. Ideal for Cooper S spec 1275cc road engines. Thin-ring low-friction design is stronger than 21251 piston in area of oil control

Race-quality 72.5 mm piston for 1342cc big-bore engine conversion. Sold each, rings and lightweight pin included.

73.5mm "big bore" piston with 7cc dish. Manufactured in the UK in special double heat-treated aluminum, and features an anti-friction design, modern ring pack, and tapered wrist pin.

998 flat top piston, 3-ring, circlip type. Piston is marked 20528, Rover part number ADU3490. +.020 oversize, two only.

Genuine AE/Federal Mogul/Nural 998cc pistons; these are the OEM 3-ring flat-top pistons giving 10.3 compression. Fit only the later press-fit rods as used from about 1985-on.

This AE 4-ring piston gives approximately 8.3:1 CR for road 998 applications. Floating pin design with circlips. Sold each, with rings and pins.

Set of 1275 +040 piston rings, made by JE. Ring sizes are 1.2mm. 1.5mm, and 3mm.