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Caterpillar Compatible Aftermarket Undercarriage Parts by Rubbertrax, Inc.

Aftermarket Caterpillar® CTL Steel Undercarriage Parts

OEM part numbers are referenced for your convenience, but these are aftermarket parts that have no association to Caterpillar® original parts. These are aftermarket parts saving you considerable cost in maintaining your undercarriage. These Caterpillar® parts are designed for the compact track loader machines made only in recent years with the new steel undercarriage system, not with the light-weight MTL series, you can find those parts further down the page.

Caterpillar® Aftermarket Sprockets:

Caterpillar® Model:Caterpillar® Part Number:
Caterpillar® 279c, 289c, 299c304-1916
Cat CTL 304-1916
Caterpillar® 239D, 249D304-1870
Cat CTL 304-1870
Caterpillar® 259B3, 259D304-1870
Cat CTL 304-1870

Caterpillar® Bottom Track Rollers

Caterpillar® Model:Caterpillar® Part Number:
Caterpillar® 279c, 289c, 299c304-1890
Cat CTL 304-1890
Caterpillar® 239D, 249D420-9801
Cat CTL 420-9801
Caterpillar® 259B3, 259D389-7624

Replacement Idlers

Caterpillar® Model:Caterpillar® Part Number:
Caterpillar® 279c, 289c, 299c Front Idler 3041878
Cat CTL 304-1878
Caterpillar® 279c, 289c, 299cRear Idler 304-1894
Cat CTL 304-1894
Caterpillar® 239D, 249DFront Idler 420-9803
Cat CTL 420-9803
Caterpillar® 239D, 249DRear Idler 420-9805
Caterpillar® 259B3, 259DRear Idler 304-1894
Cat CTL 304-1894
Caterpillar® 259B3, 259DFront Idler 304-1878
Cat CTL 304-1878

Caterpillar Mini Excavator Parts

Replacement Sprockets:

Caterpillar Model: Caterpillar OEM Part Number:
Caterpillar 301.4C
(301.7D, 301.7DCR)
(381-3033)
Caterpillar 301.4C Sprocket 381-3033
Cat 301.6C, 301.6, 301.5, 301.8, 301.8C (139-4304)
301.6C, 301.6, 301.5, 301.8, 301.8C Sprocket 139-4304
Cat 302.4D, 302.7DCR (386-0584)
Cat 302.4D, 302.7DCR Sprocket 386-0584
Cat 302.5C (140-4022)
Cat 302.5C, 302.5 Sprocket 140-4022
302.5 Verify, Options Available (193-7091)
Cat 302.5 Sprocket 193-7091
Cat 302.7D (386-0584)
Cat 302.7D Sprocket 386-0584
Cat 303.5 (172-1965) Verify, Options Available
Cat 303.5 Sprocket 172-1965
Cat 303.5E, 304E (264-5370) Verify, Options Available
Cat 303CR (193-7091)
Cat 303.5ECR, 304DCR, 304ECR, 303.5CCR, 303.5DCR, 303CCR (264-5371) Verify, Options Available
Cat 303.5ECR,304DCR,304ECR,303.5CCR,303.5DCR,303CCR  Sprocket 264-5371
Cat 304.5, 305.5, 304CR, 305CR, 306 (158-4795) Verify, Options Available
Cat 304.5, 305.5, 304CR, 305CR Sprocket 158-4795
Cat 304CCR, 305CCR (260-6341) Verify, Options Available
Cat 304CCR, 305CCR  Sprocket 260-6341
Cat 307B, 307C, 308CCR (130-9326)
Cat 308E (383-6965)
Cat E70B (383-6965)

Replacement Bottom Rollers

Caterpillar Model: Caterpillar OEM Part Number:
Cat 301.4C (381-3040)
Cat 301.4C Bottom Roller 381-3040
Cat 301.6, 301.8, 301.5 (Verify Serial Number) (139-6261)
301.6, 301.8, 301.5 Bottom Roller 139-6261
Cat 303.5, 302.5, 303CR (185-7280)
Cat 303.5,302.5,303CR Bottom Roller 185-7280
Cat 303.5ECR, 303ECR, 303.5E2CR, 302.5C, 304ECR, 304DCR, 303.5DCR, 303.5CCR, 304E2CR, 303CCR (266-8793)

Cat Bottom Roller 266-8793
Cat 302.7DCR (386-0791)
Cat 303.5, 303CR, 304E (185-7280)
Cat 302.7DCR Bottom Roller 185-7280
Cat 303.5E (266-8793)
Cat 303.5E Bottom Roller 266-8793
Cat 303.5CCR (266-8793)
Cat 303.5CCR Bottom Roller 266-8793
Cat 304.5, 305.5, 304CR, 305CR (158-4765)
Cat 304.5, 305.5, 304CR, 305CR Bottom Roller 158-4765
Cat 304CCR, 305CCR (265-7674)
Cat 304CCR 305CCR Bottom Roller 265-7674
Cat 305 E2 (422-0837)

Replacement Idlers

Caterpillar Model: Cat OEM Part Number:
Cat 302.4D, 301.7DCR, 301.7D, 302.2D, 301.4C (379-2885)
Cat 301.4C Idler 379-2885
Cat 301.6, 301.8, 301.5 (226-4049)
301.6, 301.8, 301.5 Idler 226-4049
Cat 302.4D (386-0728)
302.4D Idler 386-0728
Cat 302.5 (140-4009)(Options Available - Verify)
Cat 302.5 Idler 140-4009
Cat 302.5C (234-6204)

Cat 302.5C Idler 234-6204
Cat 302.7D (386-0728)
Cat 302.7D Idler 386-0728
Cat 303.5E (392-7373)
Cat 303.5CCR (267-4829)
Cat 303.5CCR Idler 267-4829
Cat 305CR, 305.5, 306, 305.5E, 306E, 306E2, 305.5E2 (240-6304)
Cat Idler 240-6304
Cat 305.5ECR, 305CCR, 304CCR, 305E2CR, 305ECR, 305DCR, 305.5E2CR, 305.5DCR (267-4813)
Cat Bottom Roller 267-4813
Cat 305 E2 (415-5192)


Rubbertrax, Inc. Conyers GA
Rubbertrax, Inc.
Atlanta Distribution Center
1721 Old Covington Rd. N.E.
Conyers, GA 30013 USA
Email: info@rubbertrax.com
Toll Free Phone: 866-431-5305

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All manufacturers, names, symbols and descriptions are used for viewer reference needs only, and it is not implied that any parts or tracks are original products of the manufacturer. Rubbertrax, Inc. is not associated with any OEM manufacturer although many OEM dealers distribute Rubbertrax, Inc. products. Rubbertrax Inc. distributes worldwide with daily shipping to Canada, Puerto Rico and Mexico. All of the content and photos featured or displayed on this Site, are owned by Rubbertrax, Inc., unless noted otherwise.

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