Replacement CAT 303.5 CR Final Drive for compatible Caterpillar 303.5 CR mini excavators. This complete travel motor and reduction assembly helps restore tracking power, smooth travel and responsive steering. Quality aftermarket and reconditioned options may be available, supported by a 12-month warranty and Australia-wide supply. Provide your machine model, serial number and photos of the existing unit so Arena Hydraulic and Machinery can confirm the correct fitment.
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The CAT 303.5 CR Final Drive is a complete hydraulic travel motor built to power the tracks of Caterpillar 303.5 CR mini excavators. If your 303.5 CR is losing tracking power, travelling unevenly, or leaking gearbox oil, a replacement CAT 303.5 CR final drive can restore full travel speed and responsive steering control. Browse our full range of Caterpillar Final Drive parts for other Cat excavator models.
The current-generation 303.5 CR, manufactured since 2020, is fitted with an automatic two-speed function as standard, and is a distinct generation from the older 303.5C CR produced between 2006 and 2010. Because specifications can differ significantly across these generations, confirming your exact model helps ensure the correct final drive is supplied.
Common signs you need a CAT 303.5 CR final drive replacement:
These symptoms can also stem from hydraulic, undercarriage or control-system faults. It’s worth checking the wider travel system before replacing the final drive itself.
Because the current 303.5 CR is a distinct generation from the older 303.5C CR, final drive specifications should always be confirmed rather than assumed. Send us your model, serial number, plus photos of the existing unit with its hydraulic connections, so Arena Hydraulic and Machinery can confirm the correct fitment before you order.
We supply quality aftermarket and reconditioned CAT 303.5 CR final drive units, inspected before dispatch, backed by a 12-month warranty. Arena Hydraulic and Machinery delivers CAT 303.5 CR final drives Australia-wide. Contact our team today for pricing, availability or fitment support.
A: Not necessarily. The current 303.5 CR is a distinct generation from the older 303.5C CR, and specifications can vary significantly. The machine serial number should be checked before ordering.
A: Not necessarily, these are distinct generations. Fitment should always be confirmed with your serial number and photos rather than assumed.
A: A complete final drive generally includes the hydraulic travel motor and reduction gearbox. Confirm the supplied configuration with Arena Hydraulic and Machinery when requesting a quote.
A: Provide the complete model, serial number, identification plate, clear photos of the existing final drive, mounting points and hydraulic connections.
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