However, later model serial will begin with a '1' or higher in pace of the '0'; those ARE significant. US-made Mariner motors are identical with Mercury serial number ranges and use these same charts. The serial number format is the same. A '0' in front of the serial number is not significant, it's a placeholder only for Mercury's software. So if your serial number is '0 1234567' you would use only the '1234567' part of it when looking at the chart below If there is no Canadian number listed they were not produced there in that year *. You can verify this by looking it up in the chart at the below link. What year is a mercury thunderbolt 500 50 hp outboard with the serial number 4284396? Source(s): year mercury thunderbolt 500 50 hp outboard serial number 4284396:. Anonymous 4 years ago. Report Abuse.
- Mercury Belgium Serial Number Chart
- Mercury Outboard Year By Serial Number
- Mercury Serial Number Chart
Named after its flat cylinder heads, Ford Flathead V-8 engines, developed in 1930 to 1931, were manufactured from 1932 to 1954, and although there were five different Flathead sizes, Mercury vehicles were only equipped with the 239 cubic-inch engine from 1939 to 1948, and the 255 cubic-inch motor from 1949 to 1954. Except for 1946 to 1948, when both brands used the 239, Ford always used the smaller engine size. Identification of Mercury Flatheads requires locating the engine code, which determines the date of manufacture.
Step 1
Locate the engine number. The Flathead's serial number is located on the transmission flange at the rear of the engine block. Look at the top of the bellhousing. From 1938 to 1948, the bellhousing was cast as part of the engine block, and is part of the engine block. The serial number is two to four positions, and may have both letters and numbers. An example, '91A' identifies the motor as a 1931 85-horsepower Flathead.
Step 2
Find the engine serial number on 1949 to 1954 Flatheads. These Flatheads have detachable bellhousings, with the serial number located on a flat surface near the intake manifold gasket face. Look towards the rear of the block on the passenger's side. According to the Flathead Fords and Nostalgia Drag Racing website, the serial number is three to four positions and includes both letters and numbers. Decode the letters according to this key: M=0, G=1, B=2, L=3, A=4, C=5, K=6, H=7, T=8, R=9, S=10, E=11, F=12. The code 'B25L' was manufactured on February 25, 1953.
Step 3
Reference the Flathead serial number to Van Pelt Sales' Early Ford Serial Numbers chart (see Resources). This listing identifies the serial numbers for Ford, Lincoln and Mercury Flathead engines in a year-to-year format.
Differentiate a Mercury Flathead from a Ford Flathead visually. According to Van Pelt Sales, the only visual method of differentiating Mercury and Ford Flatheads is to look at the front counterweght of the crankshaft. Mercury crankshafts have a longer stroke and are identified by a dimple on the top of the crankshaft counterweight.
Tips
- The presence of a 'C' at the beginning of the serial number indicates an engine manufactured in Canada.
- In order to read the serial numbers, it may be necessary to clean the area with a wire brush, rags and cleaning solvent.
Items you will need
- Cleaning solvent, such as de-greaser or brake fluid
- Wire brush
- Rags
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Named after its flat cylinder heads, Ford Flathead V-8 engines, developed in 1930 to 1931, were manufactured from 1932 to 1954, and although there were five different Flathead sizes, Mercury vehicles were only equipped with the 239 cubic-inch engine from 1939 to 1948, and the 255 cubic-inch motor from 1949 to 1954. Except for 1946 to 1948, when both brands used the 239, Ford always used the smaller engine size. Identification of Mercury Flatheads requires locating the engine code, which determines the date of manufacture.
Step 1
Locate the engine number. The Flathead's serial number is located on the transmission flange at the rear of the engine block. Look at the top of the bellhousing. From 1938 to 1948, the bellhousing was cast as part of the engine block, and is part of the engine block. The serial number is two to four positions, and may have both letters and numbers. An example, '91A' identifies the motor as a 1931 85-horsepower Flathead.
Step 2
Find the engine serial number on 1949 to 1954 Flatheads. These Flatheads have detachable bellhousings, with the serial number located on a flat surface near the intake manifold gasket face. Look towards the rear of the block on the passenger's side. According to the Flathead Fords and Nostalgia Drag Racing website, the serial number is three to four positions and includes both letters and numbers. Decode the letters according to this key: M=0, G=1, B=2, L=3, A=4, C=5, K=6, H=7, T=8, R=9, S=10, E=11, F=12. The code 'B25L' was manufactured on February 25, 1953.
Mercury Belgium Serial Number Chart
Step 3
Reference the Flathead serial number to Van Pelt Sales' Early Ford Serial Numbers chart (see Resources). This listing identifies the serial numbers for Ford, Lincoln and Mercury Flathead engines in a year-to-year format.
Differentiate a Mercury Flathead from a Ford Flathead visually. According to Van Pelt Sales, the only visual method of differentiating Mercury and Ford Flatheads is to look at the front counterweght of the crankshaft. Mercury crankshafts have a longer stroke and are identified by a dimple on the top of the crankshaft counterweight.
Tips
- The presence of a 'C' at the beginning of the serial number indicates an engine manufactured in Canada.
- In order to read the serial numbers, it may be necessary to clean the area with a wire brush, rags and cleaning solvent.
Mercury Outboard Year By Serial Number
Items you will need
- Cleaning solvent, such as de-greaser or brake fluid
- Wire brush
- Rags