153-1217 CAT T3034 S4S Engine Overhaul Kit full gasket kit

This kit is a complete overhaul kit specifically designed for CAT T 3034 / S4S four-cylinder diesel engines. It is compatible with  small construction machinery, Mitsubishi forklifts, generator sets, and small loaders, and is a one-stop original factory-grade repair solution for problems such as power loss, oil burning, insufficient cylinder pressure, and abnormal noise. It fully matches OEM technical standards and can be directly replaced and installed.

Compatible Models

 3034 (non-turbocharged), 3034T (turbocharged)
Mitsubishi: S4S, S4S-DT, S4S-Z263SD, S4S-Y362SD
Equipment Compatibility: CAT T DP25/DP30 forklifts, 226/246 skid steer loaders, Mitsubishi FG series forklifts, mini excavators, generator sets, agricultural tractors, etc.

Core Technical Parameters

Engine Type: 4-cylinder, 4-stroke, water-cooled, inline diesel engine

Bore × Stroke: 94mm × 120mm

Displacement: 3.331L

Power: 47kW (63HP) @ 2500rpm (non-turbocharged); 55kW (74HP) @ 2500rpm (turbocharged)

Fuel System: Non-turbocharged swirl chamber, turbocharged direct injection

Parts Specifications: Standard size (STD), supports +0.25mm/+0.50mm Larger Size Customization
Standard Configuration (40+ Pieces)

1. Cylinder Liner and Piston Assembly
Cylinder Liner: 4 pieces, high-hardness alloy cast iron, wear-resistant and corrosion-resistant, semi-finished blanks can be machined for compatibility
Piston: 4 pieces, STD standard size, high-strength aluminum alloy forging, compatible with original combustion chambers
Piston Rings: 4 sets (each set includes 2 compression rings and 1 oil ring)
Piston Pins: 4 pieces
Piston Pin Snap Rings: 8 pieces
Connecting Rod Bushings: 4 pieces

2. Bearings and Thrust Waists
Main Bearings: 1 set (upper/lower bearings)
Connecting Rod Bearings: 1 set (upper/lower bearings)
Crankshaft Thrust Waists: 1 set

3. Valve Assembly
Intake Valves: 4 pieces
Exhaust Valves: 4 pieces
Valve Guides: 8 pieces (4 for intake/4 for exhaust)
Valve Seats: 8 pieces (4 for intake/4 for exhaust)

4. Complete set of vehicle gaskets and oil seals

Cylinder head gasket: 1 piece

Complete set of gaskets: Valve cover gasket, oil pan gasket, intake and exhaust manifold gaskets, etc.

Oil seals: Front/rear crankshaft oil seals, valve stem seals, sealing rings, and other complete sealing components.

 耐用可靠的材料:气缸套采用合金铸铁,活塞采用高强度铝合金,轴承合金层耐磨耐冲击.
一站式解决方案:包含大修所需的所有核心部件,无需额外购买,缩短维修周期.
性能恢复至原厂状态:维修后,发动机可恢复至出厂时的动力水平,解决烧机油,冒黑烟,动力不足等问题.

 常见问题解答

产品的保修期是多久?