

New Yamaha Z300 Lower Units – V6 3.3L HPDI Bolt-In Carrier – 25″/30″ Shaft – 2004–2007 – New & Remanufactured – YA-G6-21 -1 Year Warranty
$3,399.00 – $3,899.00Price range: $3,399.00 through $3,899.00
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Manufacturer Warranty: 1-Year
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Return Policy: 7 – 14 day, hassle-free returns
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Trusted by 6,000+ boaters across the USA
This high-performance Yamaha Z300 lower unit is ideal for V6 3.3L HPDI engines. Compatible with 25″ and 30″ shafts, it features a bolt-in carrier design and is available new or remanufactured. Fits 2004–2007 models and comes with a 1-year warranty.
Model | Yamaha Z300 V6 3.3L HPDI |
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Years | 2004–2007 |
Horsepower | 300HP |
Shaft Length | 25″ / 30″ |
Carrier Style | Bolt-In Carrier |
Condition | New or Remanufactured |
Part Code | YA-G6-21 |
Warranty | 1 Year |
What is the difference between a New Lower Unit (NEW) and a Remanufactured Lower Unit (REMAN)?
A New Lower Unit (NEW) is completely brand new, built with 100% unused components, and comes directly from the factory. It has never been used before and typically carries a full manufacturer warranty. In contrast, a Remanufactured Lower Unit (REMAN) is an original OEM core that has been professionally disassembled, inspected, and rebuilt with new or refurbished components to meet or exceed original specifications. REMAN units are thoroughly tested and offer performance comparable to new ones but at a lower price.
Weight | 90 lbs |
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Dimensions | 23 × 13 × 31 in |
Product Type |
New Lower Unit ,Re-manufactured Lower Unit |
HP/Shaft/Years/Ratio |
Z300 / 25'' Shaft / 2004-2007 ,Z300 / 30'' Shaft (U) / 2004-2007 |
8 reviews for New Yamaha Z300 Lower Units – V6 3.3L HPDI Bolt-In Carrier – 25″/30″ Shaft – 2004–2007 – New & Remanufactured – YA-G6-21 -1 Year Warranty
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Michael Johnson –
Perfect fit. No issues at all.
Michael Garcia –
Took it on a weekend trip and it performed flawlessly. Quiet, powerful, and gave me the confidence I needed after my old one failed.
David Rodriguez –
Well packaged and fast shipping.
Jane Miller –
Ran it for hours with zero issues.
Emily Johnson –
No regrets with this purchase.
James Jones –
Works better than expected.
Jane Brown –
Strong, steady performance. Good power through all RPM ranges and perfect cooling. No leaks, no grind, just clean boating all day.
James Miller –
I’d buy again in a heartbeat.