Oil Filters

The SO434 is a compact spin‑on oil filter designed for light‑duty industrial engines, agricultural machinery, small construction equipment and automotive lubrication systems. It removes metal particles, carbon deposits, sludge and fine contaminants, ensuring clean oil circulation, reducing component wear and supporting reliable equipment operation.

Key Features

High‑efficiency cellulose filter media with good dirt‑holding capacity for extended service intervals.

Built‑in anti‑drain back valve prevents oil backflow after shutdown and protects against dry starts.

Internal bypass valve maintains oil flow during cold starts or when the filter is clogged.

Stamped steel shell with reliable pressure resistance for normal operating conditions.

Nitrile rubber sealing ring provides a tight fit and effective leak protection.

Standard thread and dimensions enable direct, tool‑free replacement.

Technical Specifications 

Part Number: SO434

Type: Spin‑on Oil Filter

Outer Diameter: 78 mm

Overall Height: 98 mm

Seal Outer Diameter: 71 mm

Seal Inner Diameter: 61 mm

Thread Size: 3/4‑16 UNF

Filtration Rating: 20–25 μm

Filtration Efficiency: ≥ 95%

Bypass Valve Opening Pressure: 2.1 bar

Max Working Pressure: 0.6 MPa

Service Life: 1000–2000 operating hours

Application:Suitable for small construction machinery, agricultural tractors, light‑duty commercial vehicles, industrial diesel engines and generator sets with matching mounting dimensions.