| Image | Fits Model | Description | Part # | Price | Product Details | ||
See Details
|
450 before serial # 3050800 | Track Tension Adjuster | D35504 |
$440.00
|
View Info | ||
See Details
|
450 before serial # 3050800 | Track Tension Adjuster | D48596 |
$444.00
|
View Info | ||
See Details
|
450 after serial # 3050800 | Track Tension Adjuster | R29709 |
$526.00
|
View Info | ||
See Details
|
450B, 455, 455B, 450C*, 455C* | Track Tension Adjuster | R51909 |
$657.00
|
View Info | ||
See Details
|
450C LGP & Long Track, 550* | Track Tension Adjuster | R54459 |
$739.00
|
View Info | ||
See Details
|
450 Before Ser # 3050800 | Recoil Spring Kit (Left) | 0 | PV603 |
$880.00
|
View Info | |
See Details
|
450 Before Ser # 3050800 | Recoil Spring Kit (Right) | 0 | PV604 |
$875.00
|
View Info | |
See Details
|
(450 After Ser# 3050800), 450B, 450C, 455C, 550E, 550G | Recoil Spring Assembly - (Left Hand) | 0 | 187916A2 |
$775.00
|
View Info | |
See Details
|
(450 After Ser# 3050800), 450B, 450C, 455C, 550E, 550G | Recoil Spring Assembly - (Right Hand) | 187917A2 |
$775.00
|
View Info | ||
See Details
|
450 Before Ser # 3050800 | Nut, Track Spring | D47539 |
$140.00
|
View Info | ||
See Details
|
450 Before Ser # 3050800 | Bolt, Track Spring | D38668 |
$125.00
|
View Info | ||
See Details
|
450 Before Ser # 3050800 | Track Tension Spring | 0 | D35277 |
$333.00
|
View Info | |
See Details
|
450*, 450B, 450C, 550, 550E, 550G, 550H | Cover, Track Adjuster | R57631 |
$94.00
|
View Info | ||
See Details
|
450 Before Ser # 3050800 | Recoil Spring Cover | 0 | D35337 |
$128.00
|
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 |
$285.00
|
View Info | ||
See Details
|
450 After Serial# 3050800 | Track Adjuster Yoke (4-Bolt Mount) | R24561 |
$288.00
|
View Info | ||
See Details
|
450B, 450C, 455, 455B, 455C, 550, 550E, 550G, 550H | Track Adjuster Yoke | 389390A1 |
$412.00
|
View Info | ||
See Details
|
450 Before to Serial# 3050800 | Track Adjuster Rod | D35506 |
$114.00
|
View Info | ||
See Details
|
450 After Ser # 3050800, 450B, 450C, 455B, 455C | Track Adjuster Rod | R51793 |
$203.00
|
View Info | ||
See Details
|
450C Long Track, 550 Before Serial# JAK13967 | Track Adjuster Rod | R54460 |
$214.00
|
View Info | ||
See Details
|
450, 450B, 450C, 455, 455B, 455C, 550, 550E, 550G, 550H | Track Adjuster Seal Kit | 907002 |
$39.00
|
View Info |
This is the navigation bar. This shows the category you're currently viewing and allows you to explore back to previous categories.
Case 450 Series Track Adjusters & Recoil Springs
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
