Where do I find the serial number?

This vehicle information resource uses the extensive research of PAS member Paul Jacobs and other Pierce-Arrow Society members. PAS Members may download the complete Pierce-Arrow Motor Car Identification Guide.

Years Cylinders Model
Series		 Serial Number Location Click image to
see a larger version.
1901-1904 1 All Stamped on the rear spring hangers, often on both sides of car. May also be stamped on the front spindles.
1903-1904 2 All Stamped into middle of rear tubular frame bracket to which the step plate is bolted. On the back end of the transmission case
1904-1909 4 All Stamped on front timing cover, on engine and on rear frame cross member.
1907-1908 6 All Stamped on front timing cover, on engine, on rear frame cross member, and on top of the frame crossmember in front of transmission.
Picture Not Available
1909-1918 6 All Brass plates were attached to the outside of the body near left front door showing serial number and engine number.

Stamped on top of frame crossmember in front of transmission.
1919-1920 6 31, 51 On plate at left hand side of body directly back of dash.

Stamped on front end of transmission case and on the front cross member
1920-1926 6 32, 33 On a brass plate affixed to the drivers side seat support, stating serial number and engine number — plate is visible upon opening left front door on all cars except runabout. On the runabout the plate is on the dash facing the driver.

Stamped on the front crossmember just above the front end of transmission.
1925-1928 6 80, 81 Stamped on top of right hand frame rail just in front of firewall.

Some cars identified with plate showing car and engine number, attached to left side of front seat frame, except runabout, coupes, brougham and four passenger touring, on which number plate is located on dash plate under cowl.
1926-1928 6 36 On a brass plate affixed to the inside of firewall, or affixed to the driver’s side seat support, stating the serial number and engine number.
1929-1938 8, 12 All Stamped on large metal plate attached to side of frame near rear of front spring, usually on right side of car, but sometimes on left.