Description
Mercury 8M0064306 Gearcase Thrust Spacer
Mercury 8M0064306 is a genuine Mercury gearcase thrust spacer used in compatible Mercury and MerCruiser gearcase assemblies where this exact part number is specified by the factory parts diagram.
Key Features
- Genuine Mercury marine replacement thrust spacer
- Used in compatible gearcase and lower unit assemblies
- Direct replacement when Mercury part number 8M0064306 is specified
- Designed for exact part-number matching during gearcase service or rebuild work
Fitment / Product Details
- Brand: Mercury
- Part Number: 8M0064306
- Product: Gearcase Thrust Spacer
- System: Gearcase / Lower Unit
Gearcase thrust spacer fitment depends on engine or drive model, serial number, gearcase configuration, and the specific assembly being serviced. Verify fitment with your Mercury or MerCruiser serial number and factory parts diagram before ordering.
What’s Included
- Mercury 8M0064306 gearcase thrust spacer
Gears, bearings, shims, seals, shafts, carriers, tools, and other lower unit parts are not included unless listed separately.
Why You Should Buy
Gearcase service requires exact part-number matching. Using the correct Mercury thrust spacer helps support proper component spacing and reliable lower unit assembly on compatible Mercury marine applications.
Common Applications
Used in Mercury and MerCruiser gearcase assemblies where the factory parts diagram calls for thrust spacer part number 8M0064306.
FAQ
Is this a complete gearcase kit?
No. This listing is for the gearcase thrust spacer only.
Does this include bearings or seals?
No. Bearings, seals, shims, gears, and other lower unit components are sold separately unless specifically listed.
Can Wakeboss help confirm fitment?
Yes. Send your engine or drive model and serial number through Ask a Parts Pro and we can help check the correct gearcase diagram.


