Idlers for Mini Excavator
Bobcat E37 Idlers
Replacement idlers for Bobcat E37 mini excavators. Guide the track and maintain proper tension. Wholesale pricing with fast shipping from our Houston warehouse.
Researched Part Numbers for Bobcat E37
Research-Based Fitment Data: The following part numbers have been researched for compatibility with Bobcat E37 mini excavators. Part numbers and fitment vary by serial number range.Please call 346-438-6252 with your machine serial number to confirm exact fitment before ordering.
Research-Based Fitment — Call to Confirm
7199074
front idler
Bobcat Mini Excavator Front Idler 7199074
Primary Part Number
7199074
Alternate / Interchange Numbers
Supersession / Interchange Notes
Bobcat 7199074 supersedes previous part number 6815117 (alts 6814880 / 7106424 / 6807909).
Compatible Machines
Bobcat 325, 328, 329, 331, 334, 335, 425, 428, 430 and E26, E32, E34, E35, E37, E42 mini excavators. Rubber track only.
Mount Type / Chassis Notes
Front idler wheel assembly for the RUBBER-track undercarriage. Does NOT fit steel-track machines. Covers the popular 300-series numbered excavators and the E-series (E26-E42). The 331 has a serial exception (does not fit s/n 511920001-up, 512911001-512912999).
Serial Number Specific
Parts vary by serial; the 331 has a serial exclusion. Verify rubber vs steel track and serial before ordering.
Research-based fitment data. Please call with your machine serial number to confirm compatibility before ordering. Part numbers and fitment may vary by serial range.
346-438-6252 • Houston, TX
About Track Idlers for Bobcat E37
The idler is positioned at the front of the undercarriage, opposite the drive sprocket. It guides the track around the front of the machine and maintains track alignment. The idler also absorbs shock loads when the machine encounters obstacles or uneven terrain.
Idlers contain sealed bearings similar to bottom rollers but are designed to handle higher loads and maintain track alignment under varying terrain conditions. The idler shell may feature single, double, or triple flanges depending on machine design.
The idler assembly includes the track adjuster mechanism, which uses hydraulic or mechanical pressure to maintain proper track tension. Correct tension is critical - too loose causes derailment risk, too tight accelerates wear on all undercarriage components.
How Track Idlers Work
The idler rotates freely on bearings as the track moves around it. Spring or hydraulic pressure pushes the idler forward to maintain track tension. The idler flanges guide the track laterally, preventing it from walking off the undercarriage. On uneven terrain, the idler absorbs impact and allows the track adjuster to compensate for variations.
Signs You May Need a Replacement Idler
Idler problems affect track tension, alignment, and overall undercarriage performance. Watch for these indicators:
•Track Wandering or Walking Off
If the track consistently drifts to one side or tends to walk off the undercarriage, the idler may have worn flanges or internal damage affecting alignment.
•Uneven Idler Surface Wear
Inspect the idler shell for flat spots, grooves, or uneven wear patterns. These indicate bearing problems or misalignment that will worsen if not addressed.
•Noisy Operation or Grinding Sounds
Squealing, grinding, or rumbling from the front of the undercarriage often indicates idler bearing wear or seal failure.
•Track Tension Problems
If track tension cannot be maintained or the track seems loose even after adjustment, the idler or adjuster mechanism may be damaged.
•Leaking Seals
Oil or grease weeping from around the idler indicates seal failure. Contamination will quickly destroy the bearings.
•Wobbling or Excessive Movement
Side-to-side wobble when rotating the idler suggests bearing wear. This affects track guidance and will cause premature track wear.
Fitment Verification
Idler specifications vary significantly by machine model and serial number. Flange configuration (single, double, or triple), shaft dimensions, and overall size must match exactly.
Some machines require specific idler variants based on undercarriage configuration or production changes. Always verify with your serial number.
Contact us with your machine details, and we will confirm the correct idler specifications including flange style and dimensions.
Free Fitment Verification
Not sure which idler fits your Bobcat E37? Contact us with your serial number and we will verify the correct part at no charge.
Related Bobcat E37 Parts
Complete your undercarriage maintenance with these related components for your Bobcat E37.
Get a Quote for Bobcat E37 Idlers
Contact us with your machine details for competitive wholesale pricing. Include your serial number for accurate fitment verification.
Get wholesale pricing on rubber tracks and undercarriage parts. We respond within 2 business hours.
Frequently Asked Questions About Bobcat E37 Idlers
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- Wholesale Pricing
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