model03999
manufacturer
Weight:20,41 kg

Z-drive upper part 1.62 for Mercruiser R/MR/Alpha One Gen.1, MD1547-9412A21

Lieferung Thu 20. Aug - Mon 24. Aug 2026 **
24 months statutory warranty

Ready-to-install Z-drive upper part with 1.62:1 ratio for Mercruiser with 6 cyl. in-line engine.
Mercruiser ref. no. 1547-9412A21

Z-drive upper part 1.62 for MerCruiser R / MR / Alpha One - OEM-compatible, ready to fit & robust

The MD1547 Z-drive upper part with 1.62:1 gear ratio is specially designed for MerCruiser R, MR and Alpha One Gen I-Z drives (up to approx. 1990). It is a fully pre-assembled, ready-to-install replacement for the original upper water part with the OEM reference 9412A21. Ideal for repair, replacement or retrofitting - with a perfect fit and proven quality.

Technical details:

  • Gear ratio: 1.62:1 - ideal for powerful 4-cylinder or V6 petrol engines

  • OEM replacement for: MerCruiser 9412A21

  • Compatible with: MerCruiser R, MR, Alpha One Gen I Z-drives (up to approx. 1990)

  • Pre-assembled: incl. shift mechanism, drive shaft, seals, intermediate bearing & oil lines

  • Material: High-quality, seawater-resistant aluminum alloy with powder coating

Product advantages:

  • OEM-compatible & 100% perfect fit - easy integration into existing systems

  • Quick installation without adjustments

  • Reliable torque transmission & smooth running

  • Cost-efficient alternative to the original part with the same functionality

  • Low-maintenance & durable - ideal for continuous use in salt water

Areas of application:

  • Replacement part for worn or defective topwater parts

  • Repair and general overhaul of classic MerCruiser drive systems

  • Suitable for sports boats, fishing boats, leisure boats with R/MR/Alpha One Gen I Z-drive

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