All 23 pages of OEM parts catalog Y00R5270 map every component in the Yanmar 4TNE106 engine family, covering the SA, G1A, T-SA, and T-G1A variants with factory-accurate exploded views and part numbers. Inside, you get section-by-section coverage from cylinder block and gear housing through crankshaft and piston, lube oil system, cooling water circuit, fuel injection pump and valve, turbine, and all the way to starting motor, generator, and panel. Every assembly is broken into individually numbered components with cross-reference-ready part identifiers, so you're ordering the right piece on the first call, not guessing from a blurry photo. The oil sump drain plug is M22 and the cylinder block spring pin measures 6×12 mm; those are Yanmar's factory specs, not forum approximations. Tired of ordering a gasket set that's almost right? Bookmarked and searchable, this PDF opens on any device so you can identify the exact part at the counter, not after a second trip.
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Thermostat Switch Activation Temperature | 110 C | p. 13 |
| Spring Pin Dimension (Cylinder Block) | 6X12 mm | p. 1 |
| Plug Dimension (Cylinder Block) | 12X16 mm | p. 1 |
| Parallel Pin Dimension (Gear Housing) | 8X16 mm | p. 2 |
| Drain Plug Thread Size (Oil Sump) | M22 | p. 3 |
| Key Dimension (Camshaft) | 7X14 mm | p. 8 |
| Pipe Dimension (Radiator) | 7X230 mm | p. 14 |
Yanmar Yanmar 4TNE106-4TNE106T Series Common Problems This Manual Covers
Yanmar 4TNE106 glow plug part numbers unclear when ordering replacements, unsure which fits SA versus G1A variants p. 1
Check the engine parts diagram on page 1 for the cylinder block assembly exploded view. The parts list columns show quantities and part numbers for each of the four model variants side by side. Confirm your model suffix (SA, G1A, T-SA, or T-G1A) and verify the glow plug line item against your serial number range before submitting the order.
Manual Section: Cylinder BlockOil sump drain plug thread size and part number needed to avoid cross-threading on replacement p. 3
Find the oil sump exploded view on page 3. The drain plug is M22 thread. Verify the exact part number against the line item in the diagram before ordering. Check the quantity column to confirm one drain plug per engine across all four model variants before finalizing your parts requisition.
Manual Section: Oil SumpCylinder head gasket set part number needed, unsure if turbocharged models require a different gasket than naturally aspirated p. 4
Locate the cylinder head assembly exploded view on page 4. The parts list separates columns for T-suffix turbocharged and non-T naturally aspirated variants. Compare the part numbers in each column directly to determine if gasket specifications differ between 4TNE106-SA and 4TNE106T-SA. List all valve train hardware from the same diagram to build a complete top-end kit before ordering.
Manual Section: Cylinder HeadCamshaft woodruff key part number and dimension needed for timing gear service without hunting through the full catalog p. 8
Check the camshaft assembly on page 8. The woodruff key is part 22512-070140, dimension 7x14 mm, with one required per engine. Verify the quantity column shows 1 for your specific model variant (SA, G1A, T-SA, or T-G1A); the catalog lists all four models in parallel columns for direct comparison.
Manual Section: CamshaftThermostat part number unclear, unsure whether housing and element are ordered separately or as a single kit p. 13
Check the cooling system exploded view on page 13. The thermostat switch activates at 110°C; locate part numbers for the element and housing as separate line items in the diagram. Cross-reference the radiator pipe assembly on page 14 (part 23061-070230, 7x230 mm pipe) if replacing cooling lines at the same time to consolidate your parts order.
Manual Section: Cooling SystemGear housing parallel pin quantity and part number uncertain when rebuilding front cover assembly p. 2
Find the gear housing exploded view on page 2. The parallel pin is part 22312-080160, dimension 8x16 mm. The parts list shows 4 pins required per engine across all model variants. Confirm the quantity column for your specific variant before ordering to avoid shorting the kit on reassembly.
Manual Section: Gear HousingFrequently Asked Questions
How do you fix yanmar 4TNE106 glow plug part numbers unclear when ordering replacements, unsure which fits SA versus G1A variants?
Check the engine parts diagram on page 1 for the cylinder block assembly exploded view. The parts list columns show quantities and part numbers for each of the four model variants side by side. Confirm your model suffix (SA, G1A, T-SA, or T-G1A) and verify the glow plug line item against your serial number range before submitting the order.
How do you fix oil sump drain plug thread size and part number needed to avoid cross-threading on replacement?
Find the oil sump exploded view on page 3. The drain plug is M22 thread. Verify the exact part number against the line item in the diagram before ordering. Check the quantity column to confirm one drain plug per engine across all four model variants before finalizing your parts requisition.
How do you fix cylinder head gasket set part number needed, unsure if turbocharged models require a different gasket than naturally aspirated?
Locate the cylinder head assembly exploded view on page 4. The parts list separates columns for T-suffix turbocharged and non-T naturally aspirated variants. Compare the part numbers in each column directly to determine if gasket specifications differ between 4TNE106-SA and 4TNE106T-SA. List all valve train hardware from the same diagram to build a complete top-end kit before ordering.
How do you fix camshaft woodruff key part number and dimension needed for timing gear service without hunting through the full catalog?
Check the camshaft assembly on page 8. The woodruff key is part 22512-070140, dimension 7x14 mm, with one required per engine. Verify the quantity column shows 1 for your specific model variant (SA, G1A, T-SA, or T-G1A); the catalog lists all four models in parallel columns for direct comparison.
What format is this Yanmar 4TNE106-SA, 4TNE106-G1A, 4TNE106T-SA, 4TNE106T-G1A?
A 23-page Parts Catalog in searchable PDF format, available the moment you complete checkout. View on computer, tablet, or phone, with no shipping wait.
Is this Yanmar 4TNE106-SA, 4TNE106-G1A, 4TNE106T-SA, 4TNE106T-G1A manual?
The PDF is DRM-free. Print whatever sections you need to take out to the shop. Standard letter or A4 paper works.
Document Quality
This document is a scanned PDF with an OCR layer applied to the parts lists and page headers, so you can search and copy text from these sections. The main titles and "Remarks" sections are image-only. All text, both OCR'd and original scanned, is crisp and easy to read. Diagrams are raster images, but they are consistently clear with all labels perfectly readable. The pages are clean, without any scan artifacts, stains, or skewed content, and there are no blank or filler pages.
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