Fleetguard NEW HF6243 Hydraulic Filter New Holland 73142551 (LOT OF 3) 0810

Fleetguard Hydraulic Filter — Part Number HF6243

Brand: Fleetguard | Condition: New Old Stock (NOS)

Fleetguard HF6243 spin-on hydraulic filter — a tall, large-capacity element measuring 10.30 inches by 4.67 inches on a 1 5/16-12 UNS-2B thread, replacing New Holland 73142551 and crossing into the Allison transmission, Link-Belt, Fiat-Allis, Orenstein & Koppel, Clark and transit bus catalogues. Fleetguard is Cummins Filtration's brand, and Komatsu distributes this filter through its own all-makes parts programme — which tells you something about how widely it is specified.

Hydraulic and transmission contamination is the leading cause of failure in both circuits. Pumps, control valves, clutch packs and motors work to clearances measured in microns, and the oil that lubricates them is the same oil that carries away their wear debris. The filter is by a wide margin the cheapest component in the circuit and the only one whose job is to protect the rest.

Condition Details

New Old Stock — never installed, never used. This filter has been held in long-term parts inventory, so the box, wrapper or label may show shelf wear, dust, fading, denting or dated printing. The filter itself is new, unused and unopened, with the sealing gasket in place. Photos show the actual item you will receive.

Specifications

• Part number: HF6243 (also listed as FGHF6243)
• Fleetguard description: Hydraulic filter, spin-on
• Thread size: 1 5/16-12 UNS-2B
• Overall height: 261.49 mm (10.295 in)
• Largest outside diameter: 118.52 mm (4.666 in)
• Seam outside diameter: 117.22 mm (4.615 in)
• Gasket outside diameter: 106.43 mm (4.19 in)
• Gasket inside diameter: 92.96 mm (3.66 in)
• Gasket included: 1
• Style: Spin-on
• Sold as: one (1) filter

Published Beta efficiency curve — the full set, which is unusual to see on a hydraulic filter and the most precise way to judge one:

Read that as: at 39 micron the filter captures 99.5% of particles, at 35 micron 98.7%, at 27 micron 95%, and at 12 micron 50%. A single "micron rating" on a box tells you one point on that curve, usually chosen flatteringly. This is the whole curve.

Superseded & Cross Reference Part Numbers

New Holland: 73142551
Allison: 25010643, HD223
Fiat-Allis: 1930893
Link-Belt: 3A15078
Orenstein & Koppel: 8406429
Clark: M1992156
Volvo: 3082148
Ford: F57Z1021952B
ABC Bus: 1623
Universal Coach: T171011
Baldwin: BT359
Donaldson: P550223
Wix: 51623
Hastings: LF271
Fram: HP3613, P3613

Published interchange runs to thirty or more numbers. Cross references are provided as a guide; confirm against your own machine before purchase.

Features

• Tall, high-capacity element at 10.30 inches — real dirt-holding capacity for a working hydraulic or transmission circuit
• Full published Beta curve rather than a single marketing micron number. β200 at 39 micron, β75 at 35, β20 at 27, β2 at 12 — tested figures you can actually compare against a specification
• Protects the expensive end of the circuit — pumps, control valves, motors, and on the Allison applications the transmission clutch packs. Every one of those costs many multiples of a filter and takes the machine out of service
• Correct 1 5/16-12 UNS-2B thread and correct gasket diameters, so it seals properly on the factory head
• Distributed by Komatsu in its all-makes Fleetguard line — a manufacturer putting a filter in its own parts programme is a meaningful endorsement
• Unusually broad interchange across agriculture, construction, transit bus and transmission applications
• Consumable by design: a scheduled service item, and therefore a repeat-purchase part

Application

• New Holland — replacing 73142551
• Allison transmissions — 25010643 and HD223
• Link-Belt — 3A15078, construction equipment
• Fiat-Allis — 1930893
• Orenstein & Koppel — 8406429
• Clark — M1992156
• Volvo — 3082148
• Transit buses and coaches — ABC Bus 1623, Universal Coach T171011

Hydraulic and transmission filter specification varies by circuit as much as by machine model, and manufacturers change filters across serial ranges. Please verify HF6243 against the parts book for your own machine and serial number before ordering — and note that some of these applications are transmission rather than hydraulic circuits, so check which one your filter head serves. Tell us the make, model and serial and we are glad to help you check, and we will photograph the filter with a tape measure and a thread gauge on request.

Why Choose Fleetguard?

Fleetguard is the filtration brand of Cummins, developed for heavy-duty service where filters protect components worth many times their own cost. On a hydraulic or transmission filter the things that matter cannot be judged by eye: media that holds its captured dirt as it loads rather than releasing it back into the circuit, a can that will not distort under differential pressure, and seals that prevent unfiltered oil bypassing the element entirely. Fleetguard publishes a full Beta curve for this filter, which is a meaningfully different claim from a nominal micron number printed on a box — and it is why Komatsu is willing to sell it under its own parts programme.

Returns

We accept returns within 30 days of delivery through the eBay return request system. Items must be returned in the condition in which they were received.

Thank you for looking at our listing. We are a family-run parts business and we take real care in identifying, describing and packing every item we sell. Much of our inventory is genuine NOS dealer stock that simply is not available new any longer, and we are glad to see these parts go to people who still keep older equipment running properly.

If anything about this listing is unclear, if you would like additional photographs or a measurement, or if there is any problem at all with your order, please contact us first and give us the chance to make it right before leaving feedback. We answer messages quickly and we will always work with you.

QBS Parts, Inc — Gardena, CA