This genuine engine intake valve is made of customized heat-resistant and fatigue-resistant alloy steel, with excellent thermal stability and mechanical fatigue resistance. It can adapt to the high-frequency opening and closing cycle and high-temperature working environment of the engine air intake system for a long time, without valve rod deformation, valve head cracking or fatigue failure.

This OTTO industrial wear-resistant intake valve guide with OEM part number 259-5829 is a core cylinder head replacement spare designed for Caterpillar C9 diesel engines, perfectly compatible with CAT 330D, 336D, 336D2 and 340D medium-large mining excavators. Press fitted into the cylinder head intake bores, it restricts the lateral movement of intake valves, guides vertical reciprocating motion accurately and bears long-term friction and high-temperature airflow scouring during round-the-clock rock excavation, heavy loading and large earthmoving construction, maintaining stable air intake matching and valve sealing accuracy.

OTTO OEM-spec intake valve seat insert 241-8388 is a bulk wholesale engine core component designed exclusively for Caterpillar C9 diesel engines, compatible with CAT 330D, 336D, 336D2 and 340D medium-large crawler excavators. Press-fitted into cylinder head intake ports, it bears repeated impact from intake valves and high-temperature intake airflow during continuous heavy mining, rock excavation and long-shift construction work. It maintains tight air sealing to guarantee complete fuel combustion and stable output power of heavy-duty machinery.

This OTTO heavy-duty O-ring seal with OEM part number 228-7096 is a universal sealing replacement spare designed for Caterpillar C4.4 and C6.6 diesel engines, perfectly suited for CAT M313D and M315D wheeled excavators. It is widely fitted on engine lubrication passages, cooling joints, fuel connectors and hydraulic valve ports, forming a complete sealed barrier to prevent oil, coolant and hydraulic fluid leakage under long-hour municipal road maintenance, urban construction and frequent mobile operation conditions.

Boost your excavator engine performance with the OTTO Engine Intake Valve (P/N: 1-12551147-0). As a high-grade aftermarket replacement, it is precision-engineered for the heavy‑duty Isuzu 6WG1 engine. This premium component delivers optimized air intake flow and reliable sealing, providing a cost‑effective, long‑lasting alternative to OEM parts for your Hitachi ZX450-3 excavator.

This used for EXCAVATOR,Original new and china could offer and With 3-12 months warranty

This used for EXCAVATOR,Original new and china could offer and With 3-12 months warranty

This used for EXCAVATOR,Original new and china could offer and With 3-12 months warranty

This used for EXCAVATOR,Original new and china could offer and With 3-12 months warranty

OTTO 4HK1 6HK1 Engine 8973628341 8-97362834-1 EGR Valve Intake Pipe for ISUZU Diesel Engine Parts This used for EXCAVATOR,Original new and china could offer and With 3-12 months warranty

OTTO 1-12551162-4 1125511624 Intake Valve for Isuzu 6WG1 6WF1 Engine Parts ZX450-3 Excavator This used for EXCAVATOR,Original new and china could offer and With 3-12 months warranty

OTTO 4HK1 6HK1 Engine Cylinder Head Intake Valve Seat 8980288750 8-98028875-0 For hitachi ZX240-3 ZX330-3 Excavator parts This used for EXCAVATOR,Original new and china could offer and With 3-12 months warranty