NASA Marine Paddle Log Impeller Unit 7m Cable No Skin Fitting
NASA Marine Paddle Log Impeller Unit
Genuine NASA Marine Accessory | UNDERWATER
A genuine NASA Marine replacement paddle-log impeller insert supplied with an attached 7 metre cable. This version is the underwater/impeller unit only and reuses a compatible NASA paddle-log skin fitting.
Key Features
- ✔ Complete replacement paddlewheel/impeller insert
- ✔ Attached 7 m / approx. 23 ft cable
- ✔ For compatible NASA Marine paddle-log installations
- ✔ Removable insert permits servicing and cleaning
- ✔ Reuses the correct existing NASA skin fitting
- ✔ Genuine NASA Marine spare part
Technical Specs
| Part type | Paddle-log impeller / underwater insert |
| Cable length | 7 m / approx. 23 ft |
| Sensor type | Mechanical paddlewheel pulse sensor |
| Skin fitting | Not included |
| Display | Not included |
| 4Boats SKU | 523-UNDERWATER |
| NASA reference | Impellor unit without skin fitting |
Compatibility / Fitment Guide
Compatible system type: NASA Marine traditional through-hull paddlewheel log installations, including compatible Clipper Log/Clipper Duet, Target Log and Cruiser Log systems that use the same NASA paddle-log insert and pulse input.
Existing skin fitting: this listing does not include the through-hull housing. Confirm the current fitting accepts the NASA paddle-log insert and that its O-rings, cap threads and bore are undamaged. A separate NASA skin fitting is available if a complete new through-hull installation is required.
Not compatible: the EML-2/EML-3 electromagnetic transducer is a different sensor system. Raymarine or other-brand housings are not confirmed even if the outside appearance is similar.
Installation safety: removing an underwater insert while afloat can admit a significant volume of water. Follow the vessel and NASA procedures, use the correct blanking cap and service the O-rings.
OEM Cross Reference
| 4Boats SKU | 523-UNDERWATER |
| NASA product | Paddle Log Impellor unit without skin fitting |
| Cable | 7 metre attached lead |
| Related complete part | NASA Complete Paddle Wheel Unit with skin fitting |
| Related housing | NASA Paddle Log skin fitting |
Questions & Answers
Is the skin fitting included?
No. This version is the impeller insert and 7 m cable only.
Which NASA displays use it?
Compatible traditional paddlewheel versions of the Clipper, Target and Cruiser logs; confirm the existing insert and input before ordering.
Will it replace an EML-3 sensor?
No. EML-3 is an electromagnetic transducer and data-box system.
Can it be changed while the boat is afloat?
Only by following the correct procedure with a serviceable blanking cap; removing a through-hull insert can allow rapid water ingress.
Confirm the instrument version and part number before ordering. Follow the NASA Marine installation instructions and isolate vessel power before electrical work.
Delivery
Fast & Free Delivery on Eligible Items.
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Returns
Something not quite right? You have 14 days from the day you receive it, to send something back.
Please note, we cannot offer refunds on fashion face masks, cosmetics, pierced jewellery, adult toys, and swimwear or lingerie if the hygiene seal is not in place or has been broken. Items of footwear and/or clothing must be unworn and unwashed with the original labels attached. Also, footwear must be tried on indoors. Items of homeware including bedlinen, mattresses, and toppers, and pillows must be unused and in their original unopened packaging. This does not affect your statutory rights.
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