JD 750, 750B, 750C, 850 Track Adjuster

Track adjuster and recoil spring components for John Deere 750, 750B, 750C, 850, 850B, and 850C crawler dozers, covering adjuster heads, housings, piston and extension rods, recoil springs, seal kits, spring covers, and complete adjuster assemblies for 6-roller undercarriages.

Fits Models At A Glance

• 750 Series: 750, 750B, 750C, 750 LGP, 750B LGP, 750B Long Track
• 850 Series: 850, 850B, 850C
• Related 6-Roller: 655, 655B, 755, 755A, 755B

Key Notes

• Application: Maintains proper track tension and absorbs shock on the undercarriage
• Undercarriage: Components suit 6-roller configurations
• Track Variants: Covers offered for long track and standard setups
• Condition: New and used adjuster and recoil parts available

Why Choose Broken Tractor

• ✅ Verified fitment across 750 and 850 series
• ✅ Fast shipping from two US locations
• ✅ Knowledgeable support for undercarriage parts

Frequently Asked Questions

What does the track adjuster do on a John Deere 750C dozer?

The track adjuster maintains proper track tension and works with the recoil spring to absorb shock across the undercarriage. Broken Tractor carries adjuster heads, housings, piston and extension rods, recoil springs, seal kits, and complete assemblies for 750, 750B, 750C, and 850 series 6-roller dozers. Keeping the adjuster and recoil components in good condition helps protect the rest of the undercarriage from wear.

Does the track adjuster head AT180805 fit a John Deere 850C?

Yes, the Track Adjuster Head AT180805 (also referenced as AT81348) fits John Deere 750, 750B, 750C, 850, 850B, and 850C dozers with a 6-roller undercarriage, along with the related 655, 655B, 755, and 755B models. Confirm your machine uses the 6-roller configuration before ordering. If you are unsure, match the part number on your existing head or contact the parts team.

How do I know if my John Deere 750B is a long track or standard machine?

Long track and standard setups use different covers and rods, so it matters which one you have. Broken Tractor offers a Long Track recoil cover (AT113783) and a 750B Long Track adjuster extension rod (T118348), plus rods for 750 LGP and 750B LGP (T80878). Match the part number to your machine or confirm your track variant with our parts team before ordering.

Are the recoil spring covers for the John Deere 750 side specific?

Yes, the recoil spring covers are handed. We carry a Right Hand recoil spring cover (AT80946) and a Left Hand recoil spring cover (AT80947) for the 750 and 750B, and a Right Hand spring cover (AT80954) for the 850 and 850B. Order the side that matches the cover you are replacing.

Can I buy a complete track adjuster assembly for a John Deere 850 instead of individual parts?

Yes, Broken Tractor offers a Complete Track Adjuster Assembly (PV316) that fits 750, 750B, 750C, 850, 850B, and 850C dozers with a 6-roller undercarriage, along with 655, 655B, 755, and 755B models. If you prefer to repair, we also stock individual parts like the piston rod, extension rods, recoil spring, and seal kit. Confirm your undercarriage is a 6-roller setup before ordering.