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| Item | Specification |
|---|---|
| Part Number | 136-2422 (or 1362422) |
| Product Name | Idler Assembly / Front Idler |
| Product Type | Undercarriage Component |
| Compatible Machine Models | Caterpillar 336, 340D2 L Excavators |
| Single Weight | 330 kgs (727.5 lbs) |
| Material | High-strength alloy steel, induction-hardened tread surface |
| Sealing Type | Floating / Duo-cone seals for contamination protection |
| Application | Guides and maintains proper tension of the track chain |
| Industry Focus | Construction, Mining, Quarrying, Demolition |
CAT 136-2422 idler
1362422 front idler assembly
336 excavator idler
340D2 L undercarriage parts
330 kg idler for CAT excavator
Replacement idler for 336
Caterpillar mining excavator front idler
340D2 L track idler
The Caterpillar 136-2422 Idler Assembly (Front Idler) is a genuine OEM-specification undercarriage component designed for Caterpillar 336 and 340D2 L excavators. This idler is a critical component that guides the track chain and maintains proper track tension at the front of the undercarriage.
These excavators are used in construction, mining, quarrying, and demolition applications. The idler features a precision-machined tread surface with induction hardening for maximum wear resistance. Advanced floating seals prevent contamination and retain lubrication, ensuring extended service life.
| Feature | Benefit |
|---|---|
| Induction-Hardened Tread Surface | Exceptional wear resistance in abrasive conditions |
| Floating / Duo-Cone Seals | Advanced sealing prevents contamination and retains lubrication |
| High-Strength Alloy Steel | Maximum durability for demanding applications |
| Precision Bearings | Smooth rotation with minimal friction for extended service life |
| Heavy-Duty Construction (330 kg) | Robust build for construction and mining applications |
| 336/340D2 L Optimized | Specifically engineered for CAT excavators |
| Direct OEM Replacement | Guaranteed fit and performance |
| Machine Model | Type | Application |
|---|---|---|
| 336 (various models) | Excavator | Construction, mining, quarrying |
| 340D2 L | Excavator | Construction, mining, quarrying |
| Component | Description |
|---|---|
| Track Assembly | Complete track system |
| Track Roller | Bottom rollers (single/double flange) |
| Top Roller | Carrier roller |
| Sprocket | Drive sprocket |
Position: This is a front idler - do not use in other positions
Lifting Requirement: Due to weight (330 kg), specialized lifting equipment and mechanical assistance are required
Bolt Torque: Follow Caterpillar OEM specifications for mounting bolt torque
Track Tension: The idler works with the tensioner to maintain proper track sag
Regular Inspection: Check for tread wear, seal damage, and bearing play periodically
Replacement: Replace when tread wear exceeds OEM specifications or when seal failure occurs
| Condition | Action |
|---|---|
| New tread - sharp profile | Normal operation |
| Moderate tread wear | Monitor regularly |
| Excessive tread wear (flat spots) | Replace idler |
| Seal leakage | Replace idler immediately |
| Bearing play | Replace idler |
| Item | Detail |
|---|---|
| Part Number | 136-2422 / 1362422 |
| Type | Idler Assembly / Front Idler |
| Weight | 330 kg per piece |
| Compatibility | CAT 336, 340D2 L Excavators |
| Packaging | Individual crate |
Note: This is a front idler assembly for Caterpillar 336 and 340D2 L excavators. Due to its weight (330 kg), specialized lifting equipment and professional installation are required. Verify machine serial number and undercarriage configuration before ordering. Regular inspection of the idler tread and seals is essential for optimal undercarriage performance.
