Triumph crankshaft sludge tube 70-3903Sludge tube for 650 and 750 Triumph crankshafts. Triumph part number E3903 or 70 3903 Highest quality, Made in UK

This eliminates the hassle of having to balance the pistons yourself

If you are building a Triumph 750 twin engine or need to rebuild a head

032" thick replace Triumph part # 70-1650 or E1650

This is the best monograde oil we have ever used and recommend it to anyone who lives in a climate where a multi viscosity oil is not needed (like Southern California)

Triumph part number 60-6011

and the optional head gaskets are part numbers 71-3681 (copper) and 71-4619 (composite)

Select aluminum or brass

All oil will be shipped UPS Ground

For Hepolite piston kits that include this ring set click here

these will fit all Monobloc and MK1 concentric carbs

501" outer diameter

and 4 inner springs