Genuine Tohatsu Oil Seal 25x40x8 MD40 MD50 TLDI 3T5-00122-0

Genuine Tohatsu oil seal for the TLDI powerheads listed in the Compatibility section. Part 3T5-00122-0 is catalogued as a 25 × 40 × 8 mm seal within the applicable engine assembly.

Key Features

• Genuine Tohatsu powerhead oil seal
• OEM catalogue size 25 × 40 × 8 mm
• For the TLDI engine families listed in the Compatibility section
• Supplied as one oil seal
• Correct replacement for the stated part number

Technical Specs

• Manufacturer: Tohatsu
• Part type: Oil seal
• Catalogue dimensions: 25 × 40 × 8 mm
• Application: TLDI powerhead
• Manufacturer part number: 3T5-00122-0
• Quantity: 1

Compatibility / Fitment Guide

How to check before ordering: the part number on your old part should be 3T5-00122-0 (or a superseding number). If you are not sure, send us your engine model and serial number (on the plate on the engine bracket) and we will confirm fitment before you order. Tohatsu often uses the same part on related models, so this list may not be complete.

OEM Cross Reference

• Tohatsu: 3T5-00122-0
• US catalogue format: 3T5001220M
• Compact search format: 3T5001220
• Catalogue description: Oil Seal 25-40-8

Questions & Answers

Is this the compressor oil seal?
No. The TLDI air-compressor oil seal uses a different part number.

Which engines does this fit?
Tohatsu MD30, MD40 and MD50 (30, 40 and 50 HP 2-stroke TLDI direct injection). To be sure, check the part number 3T5-00122-0 on your old seal or send us your engine model and serial number.

What should be inspected before installation?
Check the shaft and housing for wear, corrosion and damage, and install the seal in the specified orientation and depth.