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PERMCO 257 GRSET T1 BB SPLINE TNDM

Description & Features

Designed for tandem gear pump configurations, the Permco 257 GrSet T1 Bb Spline Tndm is a gear set replacement component built to Permco's 257 series specifications. This gear set features a splined shaft interface and is configured for bottom bracket (BB) mounting, making it suited for tandem pump assemblies where a secondary gear set is required to maintain performance across multi-function hydraulic circuits.

As a direct Permco replacement part, this gear set is intended for use in maintaining or rebuilding 257 series tandem gear pumps. Sourcing an OEM-matched gear set helps preserve original displacement and clearance tolerances within the pump housing.

SKU: 024-00846-12

Supplier Part Number (MPN): 024-00846-12

Specifications

Brand Permco Inc.	Brand Permco	Pack Size 1.00	UOM EA	Supplier Part Number 024-00846-12	Product Weight 1.00 lbs

Product Questions & Answers (2)

Question by: Chad H on Feb 23, 2026, 12:05 PM

i’ve got a Permco setup already, is this 024-00846-12 the same thing as the PERMCO 257 GRSET T1 BB SPLINE TNDM?

Answer by: Customer Support on Feb 25, 2026, 6:10 AM

For matching purposes, the key identifiers here are the Permco brand and the supplier part number 024-00846-12, which corresponds to the product named “PERMCO 257 GRSET T1 BB SPLINE TNDM.” If your current unit is labeled with that same part number, it’s the same item.

Question by: Scott M on Jan 11, 2026, 11:14 AM

Reckon this'll fit my Permco setup alright? Just wanna be sure before I order.

Answer by: Customer Support on Jan 13, 2026, 7:12 AM

Context-first: This Permco 257 GRSET T1 BB SPLINE TNDM, part number 024-00846-12, should be the correct replacement, assuming the part number matches your existing unit.