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AF4973K Air Filter
AF4973K Product Description
AF4973K Air Filter features an advanced integrated plastic finned shroud designed to execute preliminary centrifugal pre-separation, spinning out heavy sand and dirt before they reach the primary media. Constructed with an outer diameter of 130.0 mm and an overall body height of 200.0 mm, this structurally optimized canister utilizes premium corrugated pleats to stabilize high air-flow distribution while lowering intake resistance. The rugged metallic outer mesh prevents pleat collapse under sudden engine throttle variations. This critical induction component maintains internal combustion purity across numerous compact industrial equipment lines. It delivers exact drop-in fitment for KOMATSU PC 10 series mini-excavators, KOBELCO SK 025/035 models, DOOSAN DAEWOO Solar 030/035 tracks, and TAKEUCHI TB 22 systems. Additionally, it guarantees clean air delivery metrics for TCM forklifts (FD 15/FG 15), HONDA industrial generators, YANMAR diesel units, and NISSAN EF02 mechanical equipment.
AF4973K Technical Specifications
| Structural Component | Absolute Dimensions |
|---|---|
| Filter Style | Cylindrical Intake Element with Plastic Fins |
| Outer Fin Diameter (D1) | 130.0 mm |
| Gasket Outer Diameter (D2) | 104.0 mm |
| Internal Sealing Diameter (D3) | 63.0 mm |
| Total Assembly Height (H1) | 200.0 mm |
| Cylindrical Body Height (H2) | 193.0 mm |
AF4973K Cross Reference & OEM Interchange
AF4973K Equipment Application List
AF4973K Product Frequently Asked Questions (FAQ)
Q1: What is the primary purpose of the white plastic finned shroud around the top?
A1: The integrated fins create a cyclone or vortex air pattern within the intake housing. This centrifugal force spins out up to 85% of heavy dirt particles before they ever touch the inner paper media, extending service intervals.
Q2: Does the AF4973K replace the Donaldson P775749 exactly without fitting modifications?
A2: Yes, it is a direct dimensional equivalent. With a 130.0 mm outer dimension and 63.0 mm internal neck, it seals perfectly onto the standard factory air cleaner mandrel.
Q3: How do I identify when the inner 63.0 mm sealing rim is compromised?
A3: If you observe fine dust tracking or discoloration inside the clean-air tube leading toward the engine intake, the radial seal has failed or was warped during installation and requires immediate replacement.
Q4: Is this filter compatible with both diesel and gasoline utility vehicles?
A4: Yes, as long as the housing dimensions match. It is universally applied to Isuzu 3LD1 engines, Yanmar diesel power blocks, and Honda or Nissan gasoline forklift systems.
Q5: Can I clean this element using high-pressure shop air lines?
A5: It is not recommended. Compressed air exceeding 2 bar (30 psi) can easily create micro-tears in the delicate cellulose pleat structure, letting raw sand directly bypass the filter.
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