Ducati

Many of the Ducati single cylinder machines are referred to as either "Wide Case" or Narrow Case" machines. These terms relate specifically to the fitting of the crankcases to the frame and form some indication of the type of big end assembly fitted. However this is only a guide and there are many similar crankpins fitted with differing oil way drillings and it is better to send your existing crankpin to the factory for identification.

48cc

Year

Model

Con rod casting No.

Big end Part No.

Cage Part No

Small end Part No.

MAIN BEARINGS

Drive Side

Timing Side
1963-66 B48, P48 & Falcon

-

DC1

-

SE217

117

117

 

98cc

Year

Model

Con rod casting No.

Big end Part No.

Cage Part No

Small end Part No.

MAIN BEARINGS

Drive Side

Timing Side
1956-58 98T

-

DC4

-

-

§

§

 

125, 160, 175, 200 & 250 cc

"Narrow case"

Year

Model

Con rod casting No.

Big end Part No.

Cage Part No

Small end Part No.

MAIN BEARINGS

Drive Side

Timing Side
1957-63 125T, Sports & Monza

-

DC2

-

SE202

117

225

117
1957-62 175T, Sports & Silverstone

-

DC3

K100

SE189

117

130

130
1960-66 Elite, GT & S/S

-

DC3

K100

SE189

117

130

130
1962-67 Daytona, Mach1 & GT

-

DC6

K100

SE189

117

130

130

 

250, 350 & 450 cc

"Wide case"

Year

Model

Con rod casting No.

Big end Part No.

Cage Part No

Small end Part No.

MAIN BEARINGS

Drive Side

Timing Side
1968-69 Monza & Mark III  

DC6

K100

SE189

117

130

130
1969-70 Mark IIID (Desmodronic)

-

DC7

30x37x18

SE189

130

330N

130
1968-69 Sebring & MarkII (350cc)

-

DC8

30x37x18

SE189

130

330N

130
1969-on Mark IIID (Desmdronic 350cc)

-

DC9

30x37x18

SE189

130

330N

130

 

 

750, 800 & 860cc Bevel Drive Twins

Year

Model

Con rod casting No.

Big end Part No.

Cage Part No

Small end Part No.

MAIN BEARINGS

Drive Side

Timing Side

-

 Models with 36mm crankpin and 22mm small end bush

-

DC10

K128

SE238

-

-

-

 Models with 38mm crankpin and 20mm small end bush

-

DC10SX38

K128

SE238

-

-

Big end catalogue home page