KAESER 6.4334.1/G1 Oil Gas Separator Filter - Complete Technical Guide

18 नवंबर 2025

Historical parts record: Photos and notes below belong to this record. Confirm the offered unit’s full model, condition and available test evidence before ordering.

What is the KAESER 6.4334.1/G1 oil separator cartridge?

The 6.4334.1/G1 is KAESER's spin-on oil separator cartridge for their screw air compressors — the canister that strips oil mist out of the compressed air stream before the air leaves the package. The intake in the photos covers three pieces, each in its own factory carton printed Original Ersatzteil / Genuine Spare Parts, with the cartridge inside still in its plastic wrap. Each can carries the black KAESER label: Oil separator cartridge 6.4334.1/G1, Kaeser Genuine Part, Made in Italy, and a service pressure limit of Betriebsueberdruck Max 22 bar, with four-step fitting instructions printed in English and French on the can. The three cartridges were received at the Koeed warehouse on 18 November 2025 (about 1 kg on the record); the eleven photos below and one inspection video show them as received.

2 min readContent reviewed 6 October 2026

Part details

KAESER 6.4334.1/G1, per box and can labels and record
Field	Value
Manufacturer	KAESER Kompressoren (Original Ersatzteil / Genuine Spare Parts cartons; "Kaeser Genuine Part" on every can)
Part number	6.4334.1/G1 (box label and can label agree)
Type	Spin-on oil separator cartridge for screw air compressors
Origin	Made in Italy (printed on can label)
Pressure limit	Betriebsueberdruck max 22 bar (can label)
Quantity	3 pieces, one per factory carton
Fitting instructions	Four steps printed on the can, in English and French
Condition	New, factory cartons, plastic wrap intact
Weight	About 1 kg per record
Intake recorded	18 November 2025

Scroll sideways to see the full table.

Fitting notes

The four steps printed on the can are the whole procedure: oil the gasket lightly, spin the cartridge on and tighten by hand, refill the oil and run the unit, then check for leaks and re-tighten if needed. Two details are worth adding. First, the 22 bar mark on the label is the maximum operating overpressure — the separator shell is a pressure part, so never run the stage above it. Second, before spinning the new cartridge in, glance at the threads and the gasket seat on the manifold; the base of this cartridge carries a moulded gasket and a central threaded nipple, and anything cross-cut into the manifold thread will show up as an oil carry-over later. These three cartridges are factory original with the wrap still on — fit them one per service interval and keep the spares in their cartons until then.

Photos

All images below are original warehouse photos of the exact cartridges covered by this record, taken before dispatch. Click any photo to view it full size.

Three factory cartons — The three factory cartons side by side: Original Ersatzteil / Genuine Spare Parts labels, part 6.4334.1/G1, oil separator in four languages.

Carton label close-up: barcode, the A1 mark, KAESER in the vertical panel and the part number 6.4334.1/G1.

Three canisters base view — The three cartridges base-out: central threaded nipple, moulded gasket ring, wrap still sealed.

Three canisters label view — Label side of all three: KAESER in the black panel, Oil separator cartridge 6.4334.1/G1, Kaeser Genuine Part, Made in Italy.

Canister top in wrap — Top of one cartridge: the closed white can head under intact plastic wrap.

Base close-up: the threaded nipple, dark gasket ring and the ring of rectangular flow ports.

Can label close-up — Can label at reading distance: part number, Kaeser Genuine Part, www.kaeser.com, Made in Italy.

French fitting instructions — Instruction de montage: the four French fitting steps, ending with the 22 bar limit.

English maintenance instructions — Maintenance instructions in English: oil the gasket, hand-tighten, refill and run, check for leaks.

Instructions second angle — The instruction panel from a second angle — all four steps legible, wrap unbroken.

Two canisters together — Two cartridges together: full label on the left, instruction panel edge on the right — same print quality on both.

Inspection video, recorded at the Koeed warehouse before dispatch.

For the intake side of the same machine class, see the AIV-40B-K screw air compressor intake valve — the unloader valve that sits upstream of the airend.