Case 450 Series Track Adjusters

Case 450 Series Track Adjusters & Recoil Springs

Image	Fits Model	Description	Details	Part #	Price	Product Details
	See Details	450 before serial # 3050800	Track Tension Adjuster	D35504	$481.00	View Info
	See Details	450 before serial # 3050800	Track Tension Adjuster	D48596	$481.00	View Info
	See Details	450 after serial # 3050800	Track Tension Adjuster	R29709	$575.00	View Info
	See Details	450B, 455, 455B, 450C, 455C	Track Tension Adjuster	R51909	$718.00	View Info
	See Details	450C LGP & Long Track, 550*	Track Tension Adjuster	R54459	$754.00	View Info
	See Details	450 Before Serial Number 3050800	Recoil Spring Assembly (Left)	0	PV603	$897.00	View Info
	See Details	450 Before Ser # 3050800	Recoil Spring Kit (Right)	0	PV604	$897.00	View Info
	See Details	(450 After Ser# 3050800), 450B, 450C, 455C, 550E, 550G	Recoil Spring Assembly - (Left Hand)	0	187916A2	$844.00	View Info
	See Details	(450 After Ser# 3050800), 450B, 450C, 455C, 550E, 550G	Recoil Spring Assembly - (Right Hand)	187917A2	$844.00	View Info
	See Details	450 Before Ser # 3050800	Nut, Track Spring	D47539	$151.00	View Info
	See Details	450 Before Ser # 3050800	Bolt, Track Spring	D38668	$135.00	View Info
	See Details	450 Before Ser # 3050800	Track Tension Spring	0	D35277	$340.00	View Info
	See Details	450*, 450B, 450C, 550, 550E, 550G, 550H	Cover, Track Adjuster	R57631	$96.00	View Info
	See Details	450 Before Ser # 3050800	Recoil Spring Cover	0	D35337	$131.00	View Info
	See Details	450 Before Serial# 3050800	Track Adjuster Yoke (6 1/4" Between Bolt Holes)	D35507	$264.00	View Info
	See Details	450 Before Serial# 3050800	Track Adjuster Yoke (7 3/8" Between Bolt Holes)	D48595	$291.00	View Info
	See Details	450 After Serial# 3050800	Track Adjuster Yoke (4-Bolt Mount)	R24561	$315.00	View Info
	See Details	450B, 450C, 455, 455B, 455C, 550, 550E, 550G, 550H	Track Adjuster Yoke	389390A1	$449.00	View Info
	See Details	450 Before to Serial# 3050800	Track Adjuster Rod	D35506	$127.00	View Info
	See Details	450 After Ser # 3050800, 450B, 450C, 455B, 455C	Track Adjuster Rod	R51793	$207.00	View Info
	See Details	450C Long Track, 550 Before Serial# JAK13967	Track Adjuster Rod	R54460	$234.00	View Info
	See Details	450, 450B, 450C, 455, 455B, 455C, 550, 550E, 550G, 550H	Track Adjuster Seal Kit	907002	$39.00	View Info

Case 450 Series track adjusters and recoil springs for correcting loose tracks, replacing broken recoil assemblies, and restoring proper idler alignment. This category fits Case 450 (before and after Serial #3050800), 450B, and 450C dozers, including Long Track (LT) and LGP configurations where noted. Coverage includes complete track tension adjuster assemblies, left- and right-hand recoil spring assemblies, adjuster rods, yokes, springs, covers, and seal kits. These Case 450 Series track adjuster components are built to bring track tension back to specification and prevent uneven undercarriage wear.

Fits:
450 (Before & After Serial #3050800)
450B
450C, 450C Long Track (LT), 450C LGP

Common Repair Issues

Track sagging or over-tightening
Leaking hydraulic track adjuster
Broken or weak recoil spring
Bent or worn adjuster rods
Damaged threaded spring hardware
Idler misalignment from worn yokes

Parts Covered in This Category

Complete track tension adjuster assemblies
Recoil spring assemblies (LH & RH)
Track tension springs
Track adjuster rods (standard and chrome)
Track adjuster yokes (multiple bolt patterns)
Yoke forks
Recoil spring bolts and nuts
Recoil spring cover plates
Track adjuster protective covers
Track adjuster seal kits

These Case 450 Series track adjusters and recoil springs are manufactured for factory-style fit across early and late serial breaks. Options are available for 4-bolt and specific bolt-spacing yokes, as well as Long Track and LGP machines. Heavy-duty steel rods, springs, and mounting components help maintain correct idler position and consistent track tension under load. USA-made adjuster assemblies are available where noted.

Key Notes:

Application: Track tension and recoil systems for Case 450, 450B, and 450C dozers.
Coverage: Early and late serial ranges, including LT and LGP configurations.
Material/Build: Heavy-duty steel components with hydraulic and spring-loaded assemblies.
Function: Maintains proper track tension to prevent derailment and premature undercarriage wear.
Made In / Brands: USA-made options available on select assemblies; varies by part.

Why Choose Broken Tractor:

✅ Exact-Fit Components for Serial Number Breaks
✅ Model-Specific Track Tension Solutions
✅ Heavy-Duty Replacement Parts for Undercarriage Repair