Mercury Mariner 3.0L Lower Unit 1.75:1 Ratio LH Counter Rotation. Purchased new! Used a couple times. It was the wrong ratio. 12/21 Tooth Count 13 Spline Stub Shaft. Some not all 225, 250, 275 & 300 HP 3.0L V6 models. Repainted to Marriner color.

EBay Ship Calculator Incorrect!
Write or call for worldwide shipping cost.

Call for 1000's of Not Yet listed items

We also offer a component repair service by
factory trained technicians + Acres of salvaged boats for parts write or call 312-324-0000 for details.

All major credit cards & PayPal accepted.

Reading the following policies will help to prevent misunderstandings and assist in smooth buyer / seller transactions.

“NO” cash refunds on electrical items.
Exchange when available or credit towards new replacement only!

International Buyers – Please Note: 
Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility.
Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying.

You must write via eBay within 7 days of receipt of item for return authorization #.