Shop CASE Excavator CX31B

About the CASE CX31B Mini Excavator
MWE offers OEM quality replacement tracks and undercarriage for the CASE CX31B Mini Excavator from MWE, Camso, and Bridgestone. Our tracks feature continuous steel (joint-less) cords and are constructed from virgin (non-recycled) rubber, strong enough to handle even the most extreme applications. Our tracks are chunk and tear resistant thanks to natural rubber compounds that minimize vibration and offer a smoother ride, handling, and performance for your CASE CX31B.

Select from a wide range of tread patterns including Block, Multi-Bar, C-Pattern, and Blizzard that can provide both traction and flotation in a wide variety of applications. We have tracks for the CASE CX31B in standard width, in addition to wide and narrow fitments. Choose a wider fitment to extend track life and minimize ground damage or use a narrow fitment for tight spaces.

Whatever your job requires, we have Rubber Tracks and Replacement Undercarriage Parts for your CASE CX31B Mini Excavator at a savings nearly 50% less than dealer pricing. Please check out our products below. If you have any quesitons, our knowledgeable, professional sales team will take the time to evaluate and recommend the right product for your job.
Track Size
Primary Fitment300x52.5Wx82
Alternate Fitment300x52.5Kx88
Steel FitmentCH101-35-57-42L
Steel Links42
Steel Link TypeCH101-35-57
Confirm links - could be 82 or 88
Undercarriage
Front Idler/RollerFIPX52D00028F1 - KOBELCO SK30SR-3, SK35SR-3 CASE CX31B, CX36B NEW HOLLAND E30SR-3, E35SR-2/3, E35B
SprocketSPPW53D01001P1 - CASE CX31, CASE CX31B, SK30SR-2 / SK35SR-2 (Early)
Bottom RollerTR4340535 - JOHN DEERE/CASE Track Roller - SAME AS PX64D00009F1 AND 9237937
Top RollerCRPV64D00001F1 - CASE CX31, CX31B, CX35, SK30SR-2, SK35SR-2 (Early) CARRIER ROLLER
Bottom RollerTR20N-30-71707 - KOMATSU TRACK ROLLER PC30R-8, PC15-3, PC20-7, PC20R-8, PC27R-8 MU3004 (same as 9237937)
CRPV64D00001F1 same as PW64D01018P1, 03712-00100, MU3193 and MU7000

FI SAME AS KOBELCO SK30SR-3, SK35SR-3
CASE CX31B, CX36B
NEW HOLLAND E30SR-3, E35SR-2/3, E35B


TR4340535 same as part PX64D00009F1