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JD Dozer 350, 450, 550 Series Crossbar Parts

JD Dozer 350, 450, 550 Series Crossbar Parts parts list
Image	Fits Model	Description	Details	Part #	Price	Product Details
	See Details	450, 450B, 450C, 450D, 450E, 550, 550B, 455D, 455E, 555, 555B	Retainer Bar		T34390	$76.00	View Info
	See Details	450, 450B, 450C, 450D, 450E, 455D, 455E, 550, 550B, 555, 555B	Spacer, Frame Rail		T34389	$294.00	View Info
	See Details	John Deere 450, 450B, 450C Dozer	Crossbar Mounting Bushing		T26160	$35.00	View Info
	See Details	450, 450B, 450C, 450D, 450E, 455D, 455E, 550, 550A, 550B, 555, 555A, 555B	Rear Crossbar		AT18367	From $985.00	View Info
	See Details	450, 450B, 450C, 450D, 450E, 455D, 455E, 550, 550B, 555, 555B	Front Crossbar		T42720	From $2,903.00	View Info
	See Details	350, 350B, 350C, 350D, 355, 355B, 355C, 355D	Retainer Plate, Rear Corssbar		0	T21248	$37.00	View Info
	See Details	350, 350B, 350C, 350D355, 355B, 355C, 355D	Retainer Plate		0	T34402	$58.00	View Info
	See Details	450, 450B, 450C, 450D, 450E, 550, 550E	Retainer Plate, Crossbar		0	T21230	$48.00	View Info
	See Details	450, 450B, 450C, 450D, 450E, 455D, 455E, 550, 550B, 555B, 555E	Bracket (Rear Axle)(Right Hand)		0	AT83277RH	$470.00	View Info
	See Details	450, 450B, 450C, 450D, 450E, 455D, 455E, 550, 550B, 555B, 555E	Bracket (Rear Axle)(Left Hand)		0	AT83277LH	Call for Pricing	View Info

Rear and front suspension crossbars, axle brackets, retainer plates, mounting bushings, and frame spacers for John Deere 350, 450, and 550 series crawler dozers, covering new and replacement components across multiple machine generations.

Fits Models At A Glance

350 Series: 350, 350B, 350C, 350D, 355, 355B, 355C, 355D
450 Series: 450, 450B, 450C, 450D, 450E, 455D, 455E
550 Series: 550, 550A, 550B, 550E, 555, 555A, 555B, 555E

Key Notes

Application: Rear and front suspension crossbars supporting the undercarriage frame
Includes: Left and right rear axle brackets, retainer plates, and retainer bars
Hardware: Crossbar mounting bushings and frame spacers available
Fitment: Verify series and generation before ordering

Why Choose Broken Tractor

✅ Deep John Deere dozer parts inventory available
✅ Fast shipping from two US locations
✅ Experienced staff verify fitment before shipping

Frequently Asked Questions

Does the rear suspension crossbar fit a John Deere 450C dozer?

Yes, the Rear Suspension Crossbar (SKU AT18367) fits the 450, 450B, 450C, 450D, 450E, 455D, and 455E, along with several 550 and 555 series machines. Because coverage spans multiple generations, confirm your series and generation before ordering. Our parts team can verify fitment by part number.

What is the difference between the left hand and right hand rear axle bracket for JD 450 to 555E dozers?

The Left Hand Rear Axle Bracket (SKU AT83277LH) and Right Hand Rear Axle Bracket (SKU AT83277RH) mount on opposite sides of the rear suspension. Both fit the 450, 450B, 450C, 450D, 450E, 455D, 455E, 550, 550B, 555B, and 555E. Order the side you need, or both if you are replacing the pair.

Which crossbar retainer plate fits a John Deere 350 series dozer?

Broken Tractor carries two retainer plates for the 350 series, the Rear Crossbar Retainer Plate (SKU T21248) and the Retainer Plate (SKU T34402), both fitting the 350, 350B, 350C, 350D, 355, 355B, 355C, and 355D. For 450 and 550 series machines, use the Crossbar Retainer Plate (SKU T21230) instead.

Do you have crossbar mounting bushings for a John Deere 450 dozer?

Yes, we carry the Crossbar Mounting Bushing (SKU T26160), which fits the John Deere 450, 450B, and 450C dozer. If you need a frame spacer for the same area, the Frame Spacer (SKU T34389) covers the 450 through 455E series.

What replaces T42720 on a John Deere 450 to 550 dozer?

The Front Suspension Crossbar (SKU T42720) replaces T42720 and fits the 450, 450B, 450C, 450D, 450E, 455D, 455E, 550, 550B, 555, and 555B. Matching the part number is the best way to confirm the correct front crossbar for your machine. Call (800) 909-7060 if you need help verifying fitment.

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