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AP Lockheed Master Cylinder Rebuild Kit
These Lockheed kits include both the primary and secondary annular* seals. These kits fit the old Lockheed "tin can" style masters as well as newer AP Racing CP2623, CP4400, CP4626, CP5623, and CP6093 series master cylinders. Not for AP CP7854/CP7855 or CP6465 rear-pivoting master cylinders.
Lockheed used the shape of the nose on the front of the master cylinder to identify bore sizes on the old "tin can" style master cylinders.
|AP Lockheed Master Cylinder Bore Sizes|
|Front of |
|Nose Shape |
|Bore Size||Part No.|
|0.25" Long Taper||5/8" Bore||3514-.62|
|Shouldered Taper||7/10" Bore||3514-.70|
|0.50" Long Taper||3/4" Bore||3514-.75|
* Annular seals have a hole for the piston to poke through. These kits do not include cup-type seals (without a hole). The pushrod dust seal may be plain style or bellows style as shown in photo.