Complete gasket set Yanmar 3TNC78 graphite – Komatsu PC10-7 | PC28UU-1 | WA20-2 | Kobelco SK025 | Doosan DH030

Description

New complete gasket set with graphite head gasket, suitable for the Yanmar 3TNC78 three-cylinder diesel engine — also known as Komatsu 3D78N / 3D78-1. This set contains all gaskets and oil seals required for a complete engine overhaul in excavators, wheel loaders, vibratory rollers, and compact tractors.

✔️ Complete set — all gaskets and seals for a full engine overhaul
✔️ Graphite head gasket — resistant to high temperatures and compression peaks
✔️ Fits both Yanmar 3TNC78 and Komatsu 3D78N — two engine codes, same engine

Kit Contents:

• Head gasket (graphite version)
• Valve cover gasket
• Valve seals (valve stem seals)
• Intake manifold gasket
• Exhaust manifold gasket
• Sump gasket (oil pan gasket)
• Timing cover gasket
• Crankshaft seals (front + rear)
• Various O-rings and rubbers

Suitable for:

Yanmar (engine 3TNC78, 3TNC78E, 3TNC78L)

• F7H, F7HA, F7HN, F7HW
• F180, F190, F220
• YPU250, CA240, CA250, CS21

Komatsu (engine 3D78N, 3D78-1, 3D78N-1, 3D78N-1B)

• PC10-7, PC15-2, PC20-7, PC28UU-1
• JV25CR, JW30, WA20-2, EC25Z

Kobelco

• SK025

Doosan / Daewoo

• DH30, DH030

Hokuetsu

• PDS90S

Takeuchi

• TB20QR-2, Z53

John Deere (industrial engine 3011)

• 3011DF001, 3011DF005, 3011DF006

OEM ref:

• 119811-01330, 11981101330 – head gasket
• 119811-01331, 11981101331 – head gasket (alternative version)
• 719811-92620, 71981192620 – head gasket
• YM119811-01330, YM119811-01331 – aftermarket cross-reference
• 129795-49551, 129470-49550 – thermostat gasket
• RG60138 – aftermarket cross-reference

Please note: the OEM numbers above refer to the individual components in the set. Yanmar does not supply the complete gasket set under a single common OEM number.