Komatsu 600-185-6100 Air Filter Kit

A 381 mm Case Tells You the Answer First

Air filters are the easiest part in a container to get wrong, because the housing never appears on a purchase order. This number has an unusually clean check built into it: Komatsu's air cleaner element publication groups 600-185-6100 with the PC400-8, D155AX-6, WA800-7 and HD785-7 and states the element case outer diameter for the group as 381.0 mm. Measure the bore of the cleaner on the machine. If it comes out near 381 mm, the element belongs; if it comes out near 279 mm, you are holding a 600-185-4100 for the 20-tonne class, and if it comes out near 330 mm it is the 600-185-5100 group. The tape measure settles in ten seconds what a catalogue search can argue about for a week.

Element Kit, Not Element — What That Means in Practice

Komatsu calls this article an Air Filter Kit and gives its style as Element Kit, where the 30-tonne number 600-185-5110 is listed as a plain Element. The distinction comes from Komatsu, and it matters when you are building an air service: the PC400-8R brochure specifies a dry type air cleaner with two elements, so the housing holds an outer element and a safety element. A service that changes only the outer leaves the safety element in place for the life of the machine, which is exactly the element that is supposed to catch what gets past a damaged or over-serviced outer.

So the order is either the kit for your serial, or the outer plus the safety number from your parts book. If a seller quotes you a single air filter for a 40-tonne Komatsu without asking which of those two you need, they are guessing on your behalf.

Where High Efficiency Media Earns Its Name

Komatsu grades this element High Efficiency and the smaller class elements Standard White. In a quarry or a demolition site, that grade is the whole point of the part: the element is doing the work that keeps dust out of the SAA6D125E-5's cylinders, and a cheap element with the right dimensions and the wrong paper simply loads up sooner and passes the rest. We supply the kit against the published size and grade, and we will not quote a "compatible" element at a different grade without saying so on the quotation.

Ordering the Air Service With the Rest of the Set

The air element rarely travels alone. A 1,000-hour service on these machines usually pulls the hydraulic element 208-60-71123, the main fuel filter 600-319-3841 and the pre-fuel filter 600-319-4540 at the same time. The PC400-8 filter number guide lists all six with Komatsu's published sizes and the 500 / 1,000 hour intervals, and the filters catalogue shows what we hold across the Komatsu ranges.

FAQ

Q: What are the dimensions of the Komatsu 600-185-6100 air filter?
A: Komatsu publishes 600-185-6100 as an Air Filter Kit in Element Kit style: 524 mm high, 313 mm long and 313 mm wide, High Efficiency filter media, white exterior, no protective cover. Those three figures are what we quote against, and they are what separates it from the 30-tonne class element 600-185-5110 at 405 mm high and 282 x 282 mm.

Q: Which machines take the 600-185-6100 air filter kit?
A: Komatsu's own air cleaner element publication lists 600-185-6100 against the PC400-8 excavator, D155AX-6 dozer, WA800-7 wheel loader and HD785-7 haul truck, and gives the element case outer diameter for that group as 381.0 mm. That is the only Komatsu document we have found that joins this number to machine models; parts websites also list it for the PC400-7, which is consistent with the same air cleaner but is a supplier cross, not a Komatsu fitment list.

Q: Is 600-185-6100 the outer element, the inner element, or both?
A: Komatsu classifies the number as an Element Kit rather than a single Element, which is Komatsu's own style description for the article. The PC400-8R brochure specifies a dry type air cleaner with two elements, so the cleaner holds an outer and a safety element. If your parts book lists a separate safety element number for the serial, order it alongside this kit rather than assuming the kit covers the pair.

Q: Can I fit 600-185-5110 in place of 600-185-6100?
A: No. 600-185-5110 is published at 405 mm high and 282 x 282 mm in Standard White media, and it belongs to the 30-tonne class cleaner on the SAA6D114E-3 machines. 600-185-6100 is 524 mm high and 313 x 313 mm in High Efficiency media for a 381 mm case. 119 mm of height is not a tolerance, so measure the housing bore before ordering either number.