Full gasket set Yanmar 3TNE66 / 3TN66 / 3TNA66 / 3TNV66 – John Deere 240 | 330 | 332 | 415 | 655 | Komatsu 3D66

New full gasket set suitable for the Yanmar 3TNE66 three-cylinder diesel engine (67mm bore). This set contains all gaskets, oil seals, and seals required for a complete engine overhaul. The 3TNE66 is closely related to the 3TN66, 3TNA66, 3TNV66, and 3TNE66C variants — also known as Komatsu 3D66 / 3D66-1. This gasket set fits all 67mm-bore variants.

✔️ With graphite head gasket — flexible seal, suitable for standard engine overhauls
✔️ Suitable for all 3TN66 / 3TNA66 / 3TNE66 / 3TNV66 / 3TNE66C variants (67mm bore)
✔️ Includes head gasket, oil pan gasket, and crankshaft oil seals

Kit Contents:

• Graphite head gasket (cylinder head gasket)
• Valve cover gasket
• Intake manifold gasket
• Exhaust manifold gasket
• Sump gasket (oil pan gasket)
• Timing cover gasket
• Water pump gasket
• Thermostat housing gasket
• Crankshaft seals (front + rear)
• Various smaller gaskets and O-rings

Note: Always replace all gaskets during an overhaul to prevent leaks and loss of compression.

Technical specifications:

• Engine: Yanmar 3TNE66 (also: 3TN66, 3TNA66, 3TNV66, 3D66)
• Cylinders: 3
• Bore: 67 mm
• Type: Indirect injection (IDI)
• Head gasket material: Graphite

Suitable for:

Yanmar engine

• 3TN66, 3TN66E, 3TN66UJ, 3TNA66, 3TNE66, 3TNE66C, 3TNV66

Komatsu engine

• 3D66, 3D66-1

John Deere (compact tractors)

• 240, 330, 332, 415, 655

OEM ref:

• 129001-01340, 12900101340 – graphite head gasket
• 719660-92710, 71966092710 – full gasket set (reference)

Tip: the 3TNE66 (67mm) is a different engine than the 3TNE68 (68mm). If in doubt, always check the complete engine type number — send it to us and we’ll be happy to help.