• 68V-45300-34-8D Yamaha 25" Extra Long Shaft Gearbox | Genuine Used Part
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68V-45300-34-8D Yamaha 25" Extra Long Shaft Gearbox | Genuine Used Part

68V-45300-34-8D Yamaha 25" Extra Long Shaft Gearbox | Genuine Used Part

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$600.00 AUD
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🔧 Product Description

Genuine Yamaha F115 / LF115 25-Inch Standard-Rotation Gearcase - Part Number: 68V-45300-34-8D

A genuine Yamaha 25-inch extra-long lower unit for selected F115 and LF115 inline-four four-stroke outboards. The 68V family was also used as the engineering basis for Yamaha-derived Mercury FourStroke powerheads, but complete Mercury interchange must be verified by serial number, driveshaft, shift rod and paint / mounting configuration.

⚙️ Key Features

  • Genuine Yamaha F115 complete gearcase
  • Correct part number 68V-45300-34-8D
  • 25-inch extra-long shaft
  • Standard propeller rotation
  • Used on early-generation F115 four-strokes

🚤 Compatibility

  • Yamaha F115TXR / F115TLR 25-inch standard-rotation model families
  • Yamaha LF115 families where standard-rotation gearcase specification applies
  • Documented 2002 F115TXRA
  • Documented 2005 F115TLR
  • Documented 2006 F115AET
  • Approximate application era: 2000-2014
  • 25-inch X-shaft and standard rotation

🔌 Function

The gearcase reduces the four-stroke engine speed, provides forward and reverse, carries propeller thrust and pumps cooling water through the extra-long midsection.

⚠️ Common Signs of Failure

  • Mercury cross-platform unit is assumed interchangeable without checking
  • Gear oil contains water
  • Propeller shaft or driveshaft is bent
  • Shift clutch is worn
  • Bearing carrier corrodes
  • Wrong shaft length or rotation is installed

🔄 Supersession & Cross Reference

OEM Supersession Chain

  • 68V-45300-34-8D is a later X-shaft service revision
  • 68V-45300-32-8D is an earlier related assembly
  • Related suffixes include 31 and 33 revisions
  • 68V-45300-14-8D is the related 20-inch standard-rotation unit

OEM / Related Numbers

  • 68V-45300-34-8D
  • 68V-45300-32-8D
  • 68V-45300-31-8D
  • 68V-45300-33-8D
  • 68V-45300-14-8D long-shaft counterpart
  • Related F115 driveshaft, gear set and bearing carrier

Aftermarket / Verified Equivalents

  • Specialist remanufactured Yamaha F115 25-inch lower units
  • SEI or other replacement F115 gearcases where the exact model and ratio are supported
  • Used genuine Yamaha 68V assemblies
  • Yamaha-derived Mercury 75HP-115HP FourStroke units are cross-platform relatives but not verified direct complete-unit equivalents without serial validation
  • Aftermarket seal, bearing and water-pump kits

📦 Condition

  • Genuine used part
  • Removed from running engine where applicable
  • In good working condition unless otherwise stated

Shipping & Delivery

Flat-rate shipping Australia-wide — $14.99 per order, no matter how many parts you add. Orders dispatch from our Kadina, South Australia store. Need it urgently or want to collect in person? Call us on 0412 532 984 before ordering.

Returns & Warranty

14-day change-of-mind returns — if it's not right or you ordered the wrong part, send it back within 14 days in the condition you received it for a refund or exchange. Full details in our Refunds & Returns policy.

Not sure this fits?

Ask us before you buy — we check part numbers and fitment every day. Call 0412 532 984 (Mon–Fri 8.30am–4.30pm) or message us through the contact page with your engine or vehicle details.

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