6E5-45378-00 Yamaha Fitting | Genuine OEM Yamaha Outboard Part
6E5-45378-00 Yamaha Fitting | Genuine OEM Yamaha Outboard Part
Couldn't load pickup availability
✓ Authorised Volvo Penta Dealer · Marine & auto specialists · Ships Australia-wide
🔧 Product Description
Genuine Yamaha Lower-Unit Pitot Speedometer Hose Nipple - Part Number: 6E5-45378-00
A genuine Yamaha threaded hose nipple for the lower-unit pitot speedometer system.
The fitting screws into the gearcase and connects the internal pitot-water passage to the small hose leading to the boat speedometer. Water pressure generated as the boat moves is transmitted through the hose to operate the gauge.
⚙️ Key Features
- Genuine Yamaha OEM pitot hose fitting
- Correct Yamaha part number 6E5-45378-00
- M10 x 1.0 threaded connection
- Barbed outlet for the factory speedometer hose
- Direct aftermarket replacement fittings available
🚤 Compatibility
Commonly used on
- Yamaha lower-unit pitot speedometer systems
- Gearcases with an internal water-pressure speed pickup
Typically suits
- Engine models:
- Yamaha 115HP two-stroke - approximately 1984-1999
- Yamaha 130HP two-stroke
- Yamaha 150HP two-stroke
- Yamaha 175HP two-stroke
- Yamaha 200HP two-stroke
- Yamaha 220HP two-stroke
- Yamaha 225HP two-stroke
- Yamaha 115ETLN through 115TJRX production
- Selected Yamaha 30HP to 90HP gearcases using the same pitot fitting
- Yamaha lower units whose speedometer diagram specifies 6E5-45378-00
- HP Range: Approximately 30HP - 225HP
- Engine Type: Yamaha two-stroke and selected four-stroke outboard
- Year Range: Approximately 1984 onward, dependent on lower-unit casting
🔌 Function
The fitting transfers dynamic water pressure from the lower-unit pitot opening to the mechanical boat speedometer hose.
⚠️ Common Signs of Failure
- Speedometer remains at zero while underway
- Speed reading is low or erratic
- Water leaks around the fitting
- Hose repeatedly disconnects from the barb
- Fitting is blocked by sand, mud or marine growth
🔄 Supersession & Cross Reference
OEM Supersession Chain
- 6E5-45378-00 current OEM pitot hose-nipple reference
OEM / Related Numbers
- 6E5-45378-00
- 6E5-45378-00-00
- Pitot hose nipple
- Lower-unit speedometer fitting
- M10 x 1.0 to hose-barb adapter
Aftermarket / Verified Equivalents
- Aftermarket M10 x 1.0 pitot hose connector: 6E5-45378-00 replacement
- QuickMarine-style lower-unit speedometer fitting
- Generic Yamaha pitot hose nipple: 6E5-45378-00
📦 Condition
- Genuine Yamaha part
- Brand new
- Supplied in original or equivalent packaging
Shipping & Delivery
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
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 new, unused condition for a refund or exchange. Manufacturer warranties apply to new parts. Full details in our Refunds & Returns policy.
Not sure this fits?
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.
Share
