Wichard 55mm Triple Block with Swivel Head Becket & Cam Select (See Table Below):WB-74308 55MM B/B BLK: TRIPLE SWV/BK/CM - EACH Glass Filled Nylon Base Dimensions

Glass Filled Nylon Base Dimensions Mounting Hole Centres: 101

1 bar 12/24V DC (with built-in thermal protection)

22mm Aluminium track slider with spring loaded piston stop

C: 2 1/2" (64mm)

as well as Johnson 10-24119-5 as used in Ford Lehman 4D50 / 4D61 engines

Wichard 55mm Triple Block with Swivel Head Becket & Cam Select (See Table Below):WB-74308 55MM B/B BLK: TRIPLE SWV/BK/CM - EACH Glass Filled Nylon Base Dimensions55mm Triple block with swivel head, becket and CamCleat. Sheave Diameter 55mm, rope size 12mm, forged 6mm shackle. Forged S S Wichard shackle large choice of fastenings: ring, snap hook etc, Protective cheeks increase sheave lifespan, Universal head that can be locked in position, Swivel for rotating and changing fastenings, Stainless steel load straps, Stainless steel pin, Stainless steel bush ensures rotation under heavy loads, Composite sheave.