Tohatsu PISTON RING – 3T5-00012-0

Genuine Tohatsu 2nd Piston Ring Standard MD40 MD50 3T5-00012-0

3T5-00012-0

  • Dispatched in 2-3 days
  • 30 Day Return Policy
  • Low stock - 3 items left
  • Backordered, shipping soon
Our stock levels are dynamic and can change frequently. If a product appears to be in stock, it may have already sold out. Please contact us if you have any questions about availability. Thank you for your understanding.

Regular price£13.52
/
Tax included.

Genuine Tohatsu standard-size second compression piston ring for selected MD40 and MD50 TLDI outboards. Part 3T5-00012-0 is an individual powerhead rebuild component for the standard-bore piston.

Key Features

  • Genuine Tohatsu second piston ring
  • Standard-size specification
  • For selected three-cylinder MD40/MD50 TLDI powerheads
  • Individual ring, not a complete ring set
  • For measured professional engine rebuilding

Technical Specs

  • Manufacturer: Tohatsu
  • Part type: Second piston ring
  • Size: Standard
  • Manufacturer part number: 3T5-00012-0
  • Quantity supplied: 1 ring

Compatibility / Fitment Guide

Shown as the standard second piston ring for selected MD40A/B/B2 and MD50A/B/B2 TLDI engines. It is not for M5–M15 portable outboards as previously stated. Confirm the piston, bore condition and engine serial number before ordering.

Part Number Cross Reference

  • Tohatsu: 3T5-00012-0
  • US catalogue format: 3T5000120M
  • Compact search format: 3T5000120
  • 0.5 mm oversize second ring: 3T5-00015-0
  • Matching standard first ring: 3T5-00011-0

Frequently Asked Questions

Is this a full piston-ring set?
No. This listing supplies one standard second compression ring.

Will it fit an oversize piston?
No. Use the specified oversize ring for a rebored cylinder and oversize piston.

What measurements are required?
Check cylinder bore, taper, ring end gap and piston clearances against the workshop specifications.

For the products under £150 the shipping is £6.99.

Free delivery for most items over £150.

This site is protected by hCaptcha and the hCaptcha Privacy Policy and Terms of Service apply.


Recently viewed

Why choose us

Quality marine parts and boat equipment from 4Boats UK

QUALITY MARINE PARTS

We source dependable marine products from established suppliers and continually refine our range using customer feedback.

Untitled_1080_x_1080_px_2 - 4Boats

TRUSTED SUPPLIERS

We work with trusted marine suppliers and distribution partners to provide reliable parts, equipment and fulfilment.

Simple_Image_Play_Built_into_Routine_Cosmetics_TikTok_In-Feed_Ad_1080_x_1080_px_10 - 4Boats

PERSONAL SERVICE

Every order is checked by the 4Boats team. Contact us before ordering if you need help with part numbers, compatibility or availability.