Contact Breaker Chart
| MR Part No | Lucas No | Fits Distrib | Applications |
|---|---|---|---|
| DR833 | 400833 (ST361) | DJ4, DJ6, | Most models up to 1933. Distributors with no timin |
| DR415 | 400415 | DK4A, DKH | Most models 1934-46 |
| DR050 | 407050 | DKYH4A | 8E, MM, 10M 1946 on |
Rotor Arm Chart
| MR Part No | Lucas No | Fits Distributor type | Applications |
|---|---|---|---|
| DR032 | 400833 403865 | DJ4, DJ4A, DJ6, DJ6 | 14/6, 25/6 1938-39 |
| DR033 | 400051 / 405468 | DK4A, DK6, DK6A, DKH4, DKH4A ,DKY4A, DKYH4A (clockwise) | All 8's, 10 series M, 12 series 3 |
| DR034 | 400052/405469 | DK4A, DKH4, DKH4A, DKY4A (anti-clockwise) | 1934/5 10/4, 1935 12/4, 10 & 12 series 2, 10/4 series 3 |
| DR035 | 403866 | DK6A (anticlockwise) | 10/6 1935, 14 – 25 hp series 2 |
| DR060 | R60 | D41, D61, D62, D63, DS4, DS6 distributors | Minor 1929-31 Minor, 1931/2 Major, 1930-31 Oxford 6 |
