Genuine Tohatsu Nissan Outboard Thermostat 345-01030-1 25HP 30HP 40HP 50HP TLDI

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£33.99

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Tohatsu Thermostat 345-01030-1

Name: Genuine Tohatsu Nissan Outboard Thermostat 345-01030-1 25HP 30HP 40HP 50HP TLDI
Price: 33.99 GBP
Rating: 5 (1 reviews)

Genuine OEM Part for TLDI & Standard Outboards

This Genuine Tohatsu Thermostat (345-01030-1) is a critical cooling system component designed to maintain your engine's ideal operating temperature. Specifically calibrated for the unique requirements of Tohatsu and Nissan marine engines, this thermostat ensures that the engine warms up quickly and operates within the manufacturer-specified range of 50°C (122°F).

PERFORMANCE: Proper temperature regulation is vital for TLDI models to ensure complete fuel combustion and prevent carbon build-up, protecting your engine from premature wear.

Key Features

✔ Genuine Tohatsu Factory Part
✔ Precision 50°C (122°F) Activation
✔ Corrosion-resistant Marine Materials
✔ Protects against engine overheating

Technical Specs

Part Number:	345-01030-1
Opening Temp:	50°C / 122°F
Material:	Brass & Stainless Steel
Manufacturer:	Tohatsu / Nissan

Compatibility / Fitment Guide

Engine Type	Models	Notes
2-Stroke TLDI	MD25, MD30, MD40, MD50, MD70, MD90	Fits all series (A/B/B2)
2-Stroke Standard	M25, M30, M40	Twin Cylinder models
4-Stroke MFS	MFS2, MFS2.5, MFS3.5, MFS4, MFS5, MFS6, MFS8, MFS9.8, MFS15, MFS18, MFS20, MFS25, MFS30	Check original PN

OEM Cross Reference

Tohatsu / Nissan:	345-01030-1, 345-01030-0, 3H6-01030-0, 346-01030-1, 350-01030-1
Mercury Marine:	8M0228409, 8M0065545, 804540
Sierra Marine:	18-3638

Questions & Answers

Is this a genuine original part?

Yes, this is a genuine Tohatsu OEM part, packaged and supplied as an original equipment replacement.

Why is the opening temperature set to 50°C?

Many Tohatsu outboards, including TLDI models, use a 50°C (122°F) thermostat to prevent salt crystallization in the water passages, which typically occurs at higher temperatures in saltwater environments.

Does this include the gasket?

This SKU is for the thermostat unit itself. For a full service, we recommend purchasing the corresponding gasket (Tohatsu Part No. 346-01032-0 or 3T5-01032-0 depending on model) separately.

Note: Please verify your original part number against the references above or contact us at 4boats.co.uk for fitment assistance.

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Genuine Tohatsu Nissan Outboard Thermostat 345-01030-1 25HP 30HP 40HP 50HP TLDI