CAT 5T3949 OE Part | PTC Drivelines

Name: CAT 5T3949 OE Part
Brand: PTC Drivelines
SKU: CAT 5T3949

Komatsu Replacement Part

CAT 5T3949

OEM Test Certified Self-Lubricated 24h Quote Response ISO 9001:2015

The Caterpillar 773 Driveshaft pump drive, Our Model Number PTC 2345, is designed as a top-quality replacement built in place of the original OEM Model Number CAT 5T3949. Designed to be used on Caterpillar 773. This part is intended for industrial spare parts and replacements.

The driveshaft pump drive was an essential component of the machine pump-drive mechanism, responsible for transmitting mechanical power to the pump. The PTC 2345 was an OEM replacement unit, designed as a practical alternative to the OEM reference specified above for equipment operators, maintenance teams, machinery distributors, and industrial spare-parts suppliers.

The PTC 2345 provides a reliable aftermarket replacement for service and repair use where the Caterpillar 773 is concerned. It can handle the routine replacement of parts and machinery service, but also provides a viable alternative to purchasing the OEM component. Verify OEM number and machine service use before purchase.

Technical Specifications

Parameter	Specification
OEM Part Number	CAT 5T3949
PTC Part Number	PTC 2345
Product Type	Driveshaft Pump Drive
Position / Location	Connect from engine to hydraulic pump auxiliary drive coupling (front pump drive line)
Joint Series Classification	Heavy-duty industrial series, 1810-equivalent cross
Spider / Cross Material	Forged alloy steel (SAE 8620 equivalent), case-hardened:
Bearing Type	Caged needle roller bearings.
Sealing System	Triple-lip rubber seal with dust shield
Lubrication	Pre-lubricated on assembly, with grease fitting for periodic relubrication
Maximum Articulation Angle	Up to 18° per joint (application dependent).
Dynamic Balancing	Factory assembly done with a dynamic-balanced, complete assembly.
Surface Finish	-precision-ground journal and bearing surfaces
Heat Treatment	Induction-hardening, case hardening of the cross and journals
Application	Off-road mining and construction haul trucks (CAT 773 series)
Operating Environment	Harsh off-highway environment: Dust, mud, heavy vibration, changing load, etc.
Temperature Range	30°C to + 120 C (-22 F to + 248 F).
Grease Type	Lithium complex EP grease (NLGI 2)
Weight (Approx.)	8–10 kg (dependent on both shaft length and arrangement)

Frequently Asked Questions

What is the Caterpillar 773 PTC 2345 Driveshaft Pump Drive used for?

PTC 2345 Driveshaft Pump Drive is a replacement part for the Drive-shaft Pump Drive for CAT 773 series. It is a substitute for the 5T3949 labeled OEM Model Number CAT, with the same function as the pump-drive system.

What is the difference between CAT 5T3949 and PTC 2345?

This is the OEM/ OEM part number CAT 5T3949, and this is the part number for the aftermarket replacement PTC 2345. The PTC 2345 replacement is provided as a substitution for the OEM reference provided.

Is PTC 2345 a direct replacement for CAT 5T3949?

The data provided herein would suggest that PTC 2345 is a generic alternative for CAT 5T3949 for the Caterpillar 773 application. It has not been confirmed here for direct drop-in fitment; application and part-number validation should be confirmed prior to installing.

Why choose an aftermarket driveshaft pump drive for Caterpillar 773?

The aftermarket alternative could be an additional source for maintenance teams, equipment operators, and industrial spare-parts distributors. PTC 2345 targets the above-mentioned application 5 and gives an alternative source for OEM reference CAT 5T3949.