JD Dozer Frame Rails & Crossbar Suspension

Frame and suspension components for John Deere crawler dozers, including track frames, equalizer bars, pivot shafts, recoil springs, and mounting hardware across multiple dozer generations.

Fits Models At A Glance

• 350 Series: 350, 350B, 350C, 350D
• 450 Series: 450, 450B, 450C, 450D, 450E, 450G, 450H
• 550 Series: 550, 550A, 550B, 550G, 550H
• 650 Series: 650G, 650H, 650J
• 700 Series: 700H, 750, 750B, 750C
• 850 Series: 850, 850B, 850C, 850J

Key Notes

• Application: Track frame and undercarriage support structures
• Components: Equalizer bars, pivot shafts, recoil springs, frame rails
• Condition: New and used assemblies available
• Fitment: Verify by serial number and dozer generation

Why Choose Broken Tractor

• ✅ Wide dozer inventory across many model years
• ✅ Fast shipping from two US locations
• ✅ Knowledgeable staff verify fitment before you buy

Frequently Asked Questions

What frame and suspension parts do you carry for John Deere dozers?

Broken Tractor carries track frames, equalizer bars, pivot shafts, recoil springs, frame rails, and mounting hardware for John Deere crawler dozers. These are the undercarriage support structures that carry the machine's weight and hold the track system in place. We offer parts across the 350, 450, 550, 650, 700, and 850 series.

Will these parts fit my John Deere 450C dozer?

Many of our frame and suspension components fit 450 Series dozers including the 450, 450B, 450C, 450D, 450E, 450G, and 450H, but fitment often depends on serial number and dozer generation. The best way to confirm is to match the part number to your machine or verify with our parts team before you buy. This helps avoid ordering a component built for a different generation.

Do you have new or used dozer frame parts?

Broken Tractor offers both new and used frame and suspension assemblies for John Deere dozers. Availability varies by part and model series, so matching your serial number and dozer generation helps identify the correct component. Our staff can verify fitment before your order.

How do I know if my dozer's equalizer bar or pivot shaft is worn?

Worn equalizer bars and pivot shafts often show excessive play, uneven track wear, or a rough ride as the frame rocks more than it should. If the machine sits unevenly or the front frame moves noticeably at the pivot, those components may need replacing. Match the part number to your model and serial number to order the correct replacement.

How do I find the right frame part for my John Deere dozer generation?

Frame and suspension fitment on John Deere dozers is tied to serial number and dozer generation, so the same series can use different parts across model years. Match the part number from your machine when possible, or call our parts team at (800) 909-7060 to confirm the correct component. This ensures the frame rail, pivot shaft, or recoil spring lines up with your dozer.