Description
Mercury 8M0146648 Standard-Rotation Gear Set
Mercury 8M0146648 is a genuine forward gear and pinion set for select Mercury 4.6L V8 outboard gearcases. This 12/21-tooth set is specified for a 1.75:1 ratio and standard rotation in compatible 5.44-inch torpedo gear housings.
Specifications
- Brand: Mercury
- Part number: 8M0146648
- Components: Forward gear and pinion
- Tooth count: 12/21
- Gear ratio: 1.75:1
- Rotation: Standard rotation
- Gearcase: Specified 5.44-inch torpedo housing
- Engine family: Select 4.6L V8 outboards, 200-300 HP
Compatible Applications
For the specified standard-rotation 1.75:1 gearcase configuration within these engine families:
- 250R and 300R 4.6L V8 Racing: Serial 1E080500 and up.
- 250 and 300 HP 4.6L V8: Serial 2B529482 and up.
- 225 and 250 HP 4.6L V8 SeaPro; 300 HP 4.6L V8 CMS SeaPro: Serial 2B529482 and up.
- 200, 225, 250 and 300 HP 4.6L V8 Pro XS: Serial 2B529482 and up.
- 250 and 300 HP 4.6L V8 Verado; 300 HP 4.6L V8 AMS SeaPro: Serial 2B529482 and up, with the specified 1.75:1 gear set.
Check Fitment Before Ordering
Verify part number 8M0146648 by engine serial number and installed gearcase. Confirm standard rotation, the 5.44-inch housing, 12/21 tooth count and 1.75:1 ratio before ordering. Engines in the same family may use different gearcases or ratios.