Pistons

Also see Piston Ring Clamps

Hepolite
Hepolite was the brand name for Hepworth & Grandage who merged with Wellworthy pistons Ltd (Ferry Bridge) in 1989 to form the well known A E Piston Products Ltd.

A E Pistons Ltd were distributors for Hepolite, Glacier and Wellworthy products which is now part of the Federal Mogul Group.
Also Heplex

GPM Pistons and EMGO Pistons
We also carry a range of Italian made GPM pistons.

Genuine Hepolite Pistons
Most of the pistons we stock are Genuine Hepolite or Original BSA, Triumph, Norton, Royal Enfield etc. Where we cannot supply genuine we can offer an alternative GPM equivalent.

Below are just a few examples of our range of pistons, please contact us with your requirements.
We also stock large quantities of piston ring sets.

Just In!

BSA A65 Pistons 1962-72 Ł116.00 Pair
Piston Assembly complete with Hepolite rings

Part #	Description
68-0784	Piston Assembly 9:1 Compression, Std
68-0786	Piston Assembly 9:1 Compression, +20
68-0788	Piston Assembly 9:1 Compression, +40
68-0790	Piston Assembly 9:1 Compression, +60

BSA Pistons

Part #	Description	Models
41-0077	79mm, 7:1, 020	BSA B40
41-0079	79mm, 7:1, 040	BSA B40
47-0041	79mm, 8.75:1	BSA B40
47-0042	79mm, 8.75, 020	BSA B40
65-0405	63mm, Available in Standard/20/30/40/60 Giffex Make	BSA B20
66-1193	82mm, 4.9:1, Standard	BSA M20
68-0819 (15933)	75mm, 7:5 (Soiled) STD	A65 '62-72

Royal Enfield Pistons

Part #	Description	Models
26761 (8645)	2 3/4 (70mm), Flat Top, Side Valve, STD	Royal Enfield 350cc '39/40
26761 (8645)	2 3/4 (70mm), Flat Top, Side Valve, 015	Royal Enfield 350cc '39/40
25064 (8600)	64mm, Flat Top, STD	Royal Enfield 250cc '39/40 Model D
25064 (8600)	64mm, Flat Top, 015	Royal Enfield 250cc '39/40 Model D
45376	70mm, 8:1 Compression, STD	Royal Enfield Meteor Minor Sport or 250/350 models as High Compression

Triumph Pistons

Part #	Description	Models
70-6884	69mm, 9:1, STD	Triumph Twin '68-74
70-6884	69mm, 9:1, .001 o/s	Triumph Twin '68-74
70-3358	63mm, 7:1 Compression	Triumph T20
70-3358/20	63mm, 7:1 Compression, 020	Triumph T20
71-3676	76mm, 8.25:1, STD	Triumph T140/TR7
19255/020	76mm, 8.5:1, 020	Triumph T140/TR7
19255/040	76mm, 8.5:1, 040	Triumph T140/TR7
19255/060	76mm, 8.5:1, 060	Triumph T140/TR7
CP105	63mm, STD/+20/+40	Triumph TRW

Pistons for Triples

BSA Rocket 3, Triumph X75/T150/T160

These piston assemblies come with rings etc, although we always recommend using Genuine Hepolite rings with pattern pistons.

Part #	Description
70-9763	+20 Piston Assembly (Set of 3) Genuine Hepolite
70-9763P	+20 Piston Assembly (Set of 3)
70-9764P	+40 Piston Assembly (Set of 3)
70-9764/60P	+60 Piston Assembly (Set of 3)
71-4421	Std Piston Assembly (Set of 3) Genuine Hepolite 19916/20