A New O-ring and Oil Pan Drain Plug Are Now Used on Certain C12 Marine Engines {1302, 7553, 7555}
- Marine Engine:
- C-12 MARINE (S/N: K1M1-UP; 9HP1-UP)
- C12 MARINE (S/N: NFL1-UP; C1Z1-UP)
Description of Change: A new o-ring and oil pan drain plug are now used on the engines that are listed above. The new o-ring and drain plug are superior to the present o-ring and drain plug at preventing oil leaks from the oil pan drains.
Adaptable To: The new 121-0145 O-Ring Seal and 9X-6451 Drain Plug are a direct replacement for the two present o-rings and drain plugs on the 241-8177 Oil Pan Gp. The new 121-0145 O-Ring Seal and 9X-6451 Drain Plug are adaptable back to the first production of the listed engines.
Show/hide table
| Effective Serial Numbers |
| S/N:9HP02831-UP |
| S/N:C1Z01871-UP |
| S/N:K1M00186-UP |
| S/N:NFL02006-UP |
The change is effective at the factory with the engine serial numbers that are listed in Table 1.
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