| APPLICATION | ENGINE KIT | PISTON / LINER KIT (1 CYL) | RING SET (1 CYL) | PISTON | LINER | LINER ''O'' RING |
|---|---|---|---|---|---|---|
| D239 4 cyl engine 3 7/8" (98.425mm) bore 724, 744, 745, 833, 574, 674, 684, 685, 695 | EK21 EKM21 EKMC21 | B5084 = 3139591R96 includes ALL ''O'' rings identify by 15/16" (24mm) deep piston bowl | B7402 = 3218416R91 ONLY suits engines with 3 ring piston and tapered (wedge type) top ring. i.e. late type pistons | B6084 (Bonded insert type) = 3139591R96 NOTE: Replace full set 15/16" (24mm) deep piston bowl Do not confuse with D206, D310 engines (below) which have shallow 25/32" (20mm) piston bowl | B7557 = 3139592R2 Identify by 8 1/2" (216mm) length | B7506 pair of ''O''rings suits all models (Single cyl set) |