Fits Models At A Glance: Case Dozers: 450C, 550, 550E Key Notes: Part Number: R52401 Weight: 1.0 lbs (0.45 kg) Application: Track idler mounting spacer plate for Case crawler dozers Design: Features two threaded bolt holes for secure idler...

Fits Models At A Glance: Case Dozers: 450 (after serial #3050800) 450B, 450C, 455C 550E, 550G Key Notes: Weight: 100 lbs (45.4 kg) Part #: 187916A2 Side: Left-hand recoil spring assembly Includes: Spring, top roller stand, and...

Fits Models At A Glance Case Dozers: 450 (After Serial # 3050800) 450B 450C 455C 550E 550G Key Notes Part Number: 187917A2 Weight: 100.00 lbs (45.36 kg) Side: Right Hand Application: Track recoil spring assembly for maintaining...

Fits Models At A Glance: Case 450 Loader (Before Serial #3050800) Case 450 Dozer (Before Serial #3050800) Key Notes: Part Number: PV625Weight: 315 lbs (142.88 kg)Includes: (2) Front Left Guards (2) Front Right Guards (2) Rear Left...

Fits Models At A Glance: Case Dozer: 450 (before serial #3050800) Key Notes: Weight: 80 lbs (36.3 kg) Part #: PV603 Side: Left-hand recoil spring assembly Application: Provides track tension and shock absorption for early Case 450...

Fits Models At A Glance: Case Dozers: 450 before Serial # 3050800 Key Points: Manufacturer: PVE Products Origin: Made in USA Center to Center Mounting Holes: 7-3/8 inches Overall Length: 12-1/2 inches Replaces Part #: D48596 Includes: Housing, Rod,...

Fits Models At A Glance: Case Dozers: 450 before Serial # 3050800 Two Mounting Bolt Holes Key Points: Manufacturer: PVE Products Origin: Made in USA Center to Center Mounting Holes: 6-1/4 inches Overall Length: 12-1/2 inches Replaces Part #:...

Fits Models At A Glance: Case Dozers: 450 After Serial # 3050800 Key Points: 4-Bolt Mount Manufacturer: PVE Products Origin: Made in USA Overall Length: 12-1/2 inches Replaces Part #: D48596 Includes: Housing, Rod, Seals, Grease zerk, Protective...

Fits Models At A Glance: Case Dozers: 550 (Before Serial # JAK13967) 450C Long Track and LGP (6 Bottom Rollers) Key Features: Origin: Made in the USA Part Number: Replaces R54459 Weight: 45 lbs. Manufacturer: PVE Products Why Choose Broken...

Fits Models At A Glance: Case: 450B, 455, 455B Case: 450C, 455C: Standard Track (5-Bottom Rollers) Key Notes: Origin: Made in the USA. Function: Adjusts and holds track tension. Replaces Part # R51909. Manufacturer: PVE Products,...

Fits Models At A Glance: Case 450 Dozer (After Serial #3050800) Case 450B Dozer Key Notes: Part Number: PV630Weight: 315 lbs (142.88 kg)Includes: (2) Front Left Guards (2) Front Right Guards (2) Rear Left Guards (2) Rear Right Guards (4)...

Fits Models At A Glance: Case Dozers: 450 before serial # 3050800 Key Notes: Part Number: D35507 Mounting: 2-bolt Hole Spacing: 6-1/4" center to center (158.75 mm) Includes: Grease fitting Weight: 16 lbs (7.26 kg) Origin: Made in the...

Fits Models At A Glance: Case 450C Dozer (5-Roller Undercarriage) Case 455C Dozer (5-Roller Undercarriage) Case 550 Dozer (5-Roller Undercarriage) Key Notes: Part Number: PV635 Weight: 327 lbs (148.32 kg) Includes: (2) Front Left Guards (2)...

Fits Models At A Glance: Case Dozer: 450 (before serial #3050800) Key Notes: Weight: 80 lbs (36.3 kg) Part #: PV604 Side: Right-hand recoil spring assembly Application: Provides consistent track tension and impact cushioning for early Case...

Fits Models At A Glance: Case Dozer: 450 (before serial #3050800) Key Notes: Weight: 28 lbs (12.7 kg) Part #: D35355 Side: Left-hand bracket Application: Mounts the top track roller to the frame and maintains track support Function: Ensures...

Fits Models At A Glance: Case Dozer: 450 (before serial #3050800) Key Notes: Weight: 28 lbs (12.7 kg) Part #: D35354 Side: Right-hand bracket Application: Mounts the top roller securely to the track frame Function: Supports and aligns the...

Fits Models At A Glance: Case 450C LT Dozer (6-Roller Undercarriage) Case 455C LT Crawler Loader (6-Roller Undercarriage) Case 550 Dozer (6-Roller Undercarriage) Key Notes: Part Number: PV640Weight: 372 lbs (168.73 kg)Includes: (2) Front Left...

Fits Models At A Glance: Case Dozer: 450 (before serial #3050800) Key Notes: Weight: 40 lbs (18.1 kg) Part #: D35277 Application: Recoil spring assembly for track tensioning system Function: Maintains proper track tension and absorbs shock...

Fits Models At A Glance: Case 450 Dozer and Crawler Loader Case 450B Dozer and Crawler Loader Case 450C Dozer and Crawler Loader Case 455C Crawler Loader Key Notes: Part Number: R36673Weight: 30 lbs (13.61 kg)Application: Center track guard for...

Fits Models At A Glance: Case Dozers: 450 (Before serial # 3050800) Key Notes: Part Number: D48595 Center-to-Center Hole Spacing: 7-3/8" (187.33 mm) Mounting Style: 2-bolt Includes: Grease fitting for easy maintenance Weight: 18 lbs (8.16...

Fits Models At A Glance: Case Dozer: 450 (before serial #3050800) Key Notes: Weight: 8 lbs (3.6 kg) Part #: D38668 Application: Secures the recoil spring in the track adjuster assembly Function: Maintains spring compression and allows for...

Fits Models At A Glance: Case 450C Dozer Case 550 Dozer (up to serial # JAK0013968) Case 550E Dozer Case 550G Dozer Case 550H Dozer Case 455C Crawler Loader Key Notes: Part Number: 141196A1 Weight: 40 lbs (18.14 kg) Application: Center...

Fits Models At A Glance: Case 450 Dozer and Crawler Loader Case 450B Dozer and Crawler Loader Case 450C Dozer and Crawler Loader Case 455C Crawler Loader Case 550 Dozer Key Notes: Part Number: R36674 Weight: 24 lbs (10.89...

Fits Models At A Glance: Case Dozers: 450 (After serial # 3050800) Key Notes: Part Number: R24561 Mounting Style: 4-bolt Mounting Pattern: 7-3/4" x 2-1/8" (196.85 mm x 53.98 mm) Weight: 20 lbs (9.07 kg) Manufacturer: PVE Products Origin:...

Fits Models At A Glance: Case Dozer: 450 (up to serial #3050800) Key Notes: Weight: 6 lbs (2.7 kg) Part #: D47539 Application: Secures the recoil spring in the track adjuster assembly Function: Provides threaded engagement for track spring...

Fits Models At A Glance: Case 450 Dozer and Crawler Loader Case 450B Dozer and Crawler Loader Case 450C Dozer and Crawler Loader Case 455C Crawler Loader Case 550 Dozer Key Notes: Part Number: R36675 Weight: 24 lbs (10.89 kg) Application:...

Fits Models At A Glance: Case Dozer: 450 (before serial #3050800) Fits left-hand or right-hand side Key Notes: Weight: 13 lbs (5.9 kg) Part #: D35337 Application: Protects the recoil spring assembly and track adjuster from debris and...

Fits Models At A Glance: Case 450 Dozer Case 450B Dozer Key Notes: Part Number: R36676 Weight: 15 lbs (6.80 kg) Application: Rear left track guard for Case dozers. Notes: Fits Case 450 and 450B dozer models. Manufactured by PVE Product. Made in...

Fits Models At A Glance: Case Dozers: 450 (Before serial # 3050800) Key Notes: Part Number: D48592 Side: Left-hand bracket (used on the left side of each track) Compatible With: D48596 Track Adjuster Weight: 27 lbs (12.25 kg) Manufacturer:...

Fits Models At A Glance: Case Dozers: 450 (Before serial # 3050800) Key Notes: Part Number: D48593 Side: Right-hand bracket (used on right side of each track) Compatible With: D48596 Track Adjuster Weight: 26 lbs (11.79 kg) Manufacturer:...

Fits Models At A Glance: Case 450 Dozer Case 450B Dozer Key Notes: Part Number: R36677Weight: 15 lbs (6.80 kg)Application: Rear right track guard for Case dozers.Notes: Fits Case 450 and 450B dozer models. Why Choose Broken Tractor? ✅ Precision...

Fits Models At A Glance: Case 450C Dozer and Crawler Loader Case 455C Crawler Loader Case 550 Dozer Case 550E Dozer Key Notes: Part Number: R47465 Weight: 18 lbs (8.16 kg) Application: Rear left track guard for Case dozers and crawler loaders...

Fits Models At A Glance: Case 450C Dozer and Crawler Loader Case 455C Crawler Loader Case 550 Dozer Case 550E Dozer Key Notes: Part Number: R47466 Weight: 18 lbs (8.16 kg) Application: Rear right track guard for Case dozers and crawler loaders...

Fits Models At A Glance: Case 450 Dozer and Crawler Loader Case 450B Dozer and Crawler Loader Case 450C Dozer and Crawler Loader Case 550E Dozer Key Notes: Part Number: R36667 Weight: 4.7 lbs (2.13 kg) Application: Sprocket guard cover for Case...

Fits Models At A Glance: Case Dozers: 450 after Serial # 3050800 Case Dozers: 450B, 450C, 550, 550E, 550G, 550H Key Points: Manufacturer: PVE Products Origin: Made in USA Part #: R57631 Weight: 3 lbs Fits: Left or Right-Hand Side Why Choose...

Fits Models At A Glance: Case Dozers: 450 (Before serial # 3050800) Key Notes: Part Number: D35506 Length: 11" (279.4 mm) Weight: 8 lbs (3.63 kg) Manufacturer: PVE Products Origin: Made in the USA Application: Track tension adjuster rod...

Fits Models At A Glance: Case Dozers: 450 (After serial # 3050800) 450B 450C (Standard Track) Case Crawler Loaders: 455B 455C Key Notes: Part Numbers: R51793, R29669 Length: 11" (279.4 mm) Weight: 8 lbs (3.63 kg) Condition:...

Fits Models At A Glance: Case Dozers & Crawler Loaders: 450B, 450C 455, 455B, 455C 550, 550E, 550G, 550H Key Notes: Part Number: 389390A1 Track Compatibility: Fits right or left track side Includes: Grease fitting for easy...

Fits Models At A Glance: Case Dozers: 450C (Long Track only) 550 (Before serial # JAK13967) Key Notes: Part Number: R54460 Rod Length: 20" (508 mm) Weight: 15 lbs (6.8 kg) Manufacturer: PVE Products Origin: Made in the USA Application:...

Fits Models At A Glance: Case 450 Dozer (Before Serial #3050800) Key Notes: Part Number: 413-8120Weight: 1 lb (0.45 kg)Application: Track guard bolt for Case 450 dozers.Notes: Specifically fits Case 450 dozers built before serial #3050800. Why Choose...

Fits Models At A Glance: Case 450 Dozer (After Serial # 3050800) Case 450B Dozer Case 450C Dozer Case 550 Dozer Case 550E Dozer Key Notes: Part Number: 413-8136Weight: 1 lb (0.45 kg)Application: Track guard bolt for Case dozersNotes: Fits...

Fits Models At A Glance: Case 450 Dozer (Before Serial #3050800) Case 450 Crawler Loader (Before Serial #3050800) Key Notes: Part Number: D35372 Weight: N/A Dimensions: Approx. 5-3/4 in (146 mm) long Application: Track guard spacer for Case dozers...

Fits Models At A Glance: Case 450 Dozer and Crawler Loader (After Serial #3050800) Case 450B Dozer and Crawler Loader Case 450C Dozer and Crawler Loader Case 455C Crawler Loader Case 550 Dozer Case 550E Dozer Key Notes: Part Number:...

Fits Models At A Glance: Case Dozers and Loaders: 450, 450B, 450C, 455C, 550, 550E, 550G, 550H Key Notes: Specifications: Designed for use with R58710 Track Idler Part Number: 144392A3 Weight: 3 lbs. Usage: Helps extend the life of your Case...

Fits Models: Case Dozers: 450, 450B, 450C, 455, 455B, 455C, 550, 550E, 550G, 550H. Key Points: Contains all necessary seals and a retainer ring to rebuild one track adjuster. Part Number: 907002. Weight: 0.3 lbs. Origin: Made in USA Brand: Bulldog or...

Fits Models At A Glance: Case Dozers: 450C, 550, 550E, 550G, 550H, 650H Case Crawler Loader: 455C Use Note: Two guide plates are used per idler Key Notes: Weight: 4 lbs (1.8 kg) Part #: R49772 Application: Guides the idler to maintain track...

Image	Fits Model	Description	Details	Part #	Price	Product Details
	See Details	450C, 550, 550E	Track Idler Spacer Plate	R52401	$76.00	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 Serial #3050800	Rock Guard Set	0	PV625	From $2,930.00	View Info
	See Details	450 Before Ser # 3050800	Recoil Spring Kit (Left)	0	PV603	$875.00	View Info
	See Details	450 before serial # 3050800	Track Tension Adjuster	D48596	$444.00	View Info
	See Details	450 before serial # 3050800	Track Tension Adjuster	D35504	$440.00	View Info
	See Details	450 after serial # 3050800	Track Tension Adjuster	R29709	$526.00	View Info
	See Details	450C LGP & Long Track, 550*	Track Tension Adjuster	R54459	$688.00	View Info
	See Details	450B, 455, 455B, 450C*, 455C*	Track Tension Adjuster	R51909	$657.00	View Info
	See Details	450B, (450 After Serial # 3050800)	Rock Guard Set	PV630	From $2,930.00	View Info
	See Details	450 Before Serial# 3050800	Track Adjuster Yoke (6 1/4" Between Bolt Holes)	D35507	$264.00	View Info
	See Details	450C, 455C, 550	Rock Guard Set (5-Roller Undercarriage)	0	PV635	From $2,930.00	View Info
	See Details	450 Before Ser # 3050800	Recoil Spring Kit (Right)	0	PV604	$875.00	View Info
	See Details	450 Before Ser # 3050800	Top Roller Mounting Bracket (Left)	0	D35355	$335.00	View Info
	See Details	450 Before Ser # 3050800	Top Roller Mounting Bracket (Right)	0	D35354	$335.00	View Info
	See Details	450C, 550E	Rock Guard Set (6-Roller Undercarriage)	0	PV640	From $3,102.00	View Info
	See Details	450 Before Ser # 3050800	Track Tension Spring	0	D35277	$310.00	View Info
	See Details	450, 450B, 450C, 455C	Center Guard (5-Roller Undercarriage)	0	R36673	$258.00	View Info
	See Details	450 Before Serial# 3050800	Track Adjuster Yoke (7 3/8" Between Bolt Holes)	D48595	$264.00	View Info
	See Details	450 Before Ser # 3050800	Bolt, Track Spring	D38668	$125.00	View Info
	See Details	450C, 455C, 550E	Center Guard (6-Roller Undercarriage)	0	141196A1	$258.00	View Info
	See Details	450, 450B, 450C, 455C, 550	Case Dozer Front Left Track Guard	0	R36674	$208.00	View Info
	See Details	450 After Serial# 3050800	Track Adjuster Yoke (4-Bolt Mount)	R24561	$288.00	View Info
	See Details	450 Before Ser # 3050800	Nut, Track Spring	D47539	$140.00	View Info
	See Details	450, 450B, 450C, 455C, 550	Case Dozer Front Right Track Guard	0	R36675	$208.00	View Info
	See Details	450 Before Ser # 3050800	Recoil Spring Cover	0	D35337	$115.00	View Info
	See Details	450, 450B	Case Dozer Rear Left Track Guard	0	R36676	$208.00	View Info
	See Details	450 Before Serial # 3050800	Idler Bracket (Left) (Used with D48596 Adjuster)	D48592	$364.00	View Info
	See Details	450 Before Ser # 3050800	Idler Bracket (Right) (Used with D48596 Adjuster)	D48593	$364.00	View Info
	See Details	450, 450B	Case Dozer Rear Right Track Guard	0	R36677	$208.00	View Info
	See Details	450C, 455C, 550, 550E	Case Rear Left Track Guard	0	R47465	$208.00	View Info
	See Details	450C, 455C, 550, 550E	Case Rear Right Track Guard	0	R47466	$208.00	View Info
	See Details	450, 450B, 450C, 550, 550E	Case Dozer Sprocket Guard Cover	0	R36667	$65.00	View Info
	See Details	450*, 450B, 450C, 550, 550E, 550G, 550H	Cover, Track Adjuster	R57631	$86.00	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	$188.00	View Info
	See Details	450B, 450C, 455, 455B, 455C, 550, 550E, 550G, 550H	Track Adjuster Yoke	389390A1	$412.00	View Info
	See Details	450C Long Track, 550 Before Serial# JAK13967	Track Adjuster Rod	R54460	$214.00	View Info
	See Details	450 Before Serial #3050800	Case 450 Track Guard Bolt for Dozer (Before Serial #3050800)	0	413-8120	$12.00	View Info
	See Details	(450 After Serial # 3050800), 450B, 450C, 550, 550E	Case Dozer Track Guard Bolt	0	413-8136	$13.50	View Info
	See Details	450 Before Serial #3050800	Case 450 Track Guard Spacer for Dozer and Loader (Before Serial #3050800)	D35372	$15.00	View Info
	See Details	(450 After Serial # 3050800), 450B, 450C, 550, 550E	Case 450, 450B, 450C, 455C, 550, 550E Track Guard Spacer for Dozer and Loader	0	R36665	$16.00	View Info
	See Details	450, 450B, 450C, 455C, 550, 550E, 550G, 550H	Wear Kit, Track Idler	144392A3	$148.00	View Info
	See Details	450, 450B, 450C, 455, 455B, 455C, 550, 550E, 550G, 550H	Track Adjuster Seal Kit	907002	$39.00	View Info
	See Details	450C, 455C, 550, 550E, 550G, 550H, 650H	Idler Guide Plate	R49772	$39.00	View Info