Tension Idler Description
The 348-5434 Idler Tension Wheel is a critical component in the undercarriage system of Caterpillar E320D2 and E323DL excavators. This part supports the track system and maintains proper track tension, reducing the risk of de-tracking or premature wear. Built with high-quality forged steel and sealed bearing units, it delivers superior strength and smooth operation even in harsh jobsite conditions. YNF Machinery supplies this part as a cost-effective aftermarket solution that meets or exceeds OEM standards—ideal for fleet maintenance, undercarriage rebuilders, and CAT parts resellers.
Idler Wheel Technical Sheet
| Attribute | Specification |
| Applicable Models | CAT E320D2, E323DL |
| Part Name | Idler Tension Wheel |
| OEM Part Number | 348-5434 |
| YNF Part Number | YNF16787 |
| Material | Forged Steel with Treated Surface |
| Installation Area | Front Undercarriage / Track Tensioner |
| Weight | Approx. 38–45 kg (based on variant) |
| Brand | YNF |
| Origin | China |
| Condition | New, aftermarket equivalent |
| MOQ | 1 Piece |
| Shipping | Wooden crate / Export packaging |
| Shipping Methods | Air, Sea, Express |
| Payment Methods | T/T, PayPal, L/C |
Idler Wheel Applications
| Application Segment | Function |
| Crawler Excavators | Maintains track tension and alignment |
| Undercarriage Rebuild | Replacement in CAT E320D2/E323DL maintenance |
| Heavy Equipment Rentals | Key stock item for field failures |
| Construction Equipment | Reduces vibration and track wear |
E320D2 Idler Wheel Detail Display
Related Products:
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Track Adjuster Cylinder for CAT E320 Series
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Track Roller Bottom Roller for E323DL
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Front Idler Seal Group Kit
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Undercarriage Track Shoe Assembly
FAQs:
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Q: Can I use this idler on E320C?
A: It is specifically made for E320D2/E323DL; contact us for cross-reference options.
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Q: Is the bearing included in the assembly?
A: Yes, this is a pre-assembled unit with bearings installed.
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Q: Do you offer full undercarriage kits?
A: Yes, including sprockets, rollers, tracks, and idlers.
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