OEM replacement hydraulic fluid reservoir kit for select EQ Systems pump assemblies. 8 qt. capacity. Includes reservoir, O-ring, cap, plug, grommets, and screws. Compatible with pump models S102T*4979, S103T*4979, S103T*5015, and S103T*5076.
The EQ Systems 2307K is a complete replacement reservoir kit for select EQ Systems hydraulic pump assemblies. The reservoir holds the Dexron ATF hydraulic fluid that feeds the pump — and over time the plastic tank body can crack, develop leaks at the seals, or sustain damage that compromises fluid level and system pressure. This kit replaces the reservoir and all associated hardware in a single order.
With an 8-quart capacity, the 2307K is one of the larger reservoir options in the EQ Systems lineup, suited to pump configurations that manage higher fluid volume demands. The kit includes the plastic reservoir tank, O-ring seal, cap, plug, grommets, and mounting screws — everything needed to complete the swap without sourcing individual components separately.
Hydraulic fluid (Dexron ATF) is not included and must be purchased separately. Refill the reservoir after installation with Dexron ATF fluid — the same fluid used in GM vehicles.
The 2307K fits the following EQ Systems pump assemblies only: S102T*4979 S103T*4979 S103T*5015 S103T*5076 EQ Systems reservoirs are not universal — tank shape, cap size, and mounting configuration vary between pump models. Verify your pump model number before ordering. The pump model number is typically located on a label affixed to the pump housing. If your pump model is not listed above, contact EQ Systems to confirm the correct reservoir part number using the Replacement Reservoir Chart.
After replacing the reservoir, refill with Dexron ATF fluid (the same transmission fluid used in GM vehicles). Always check and fill the reservoir with all jacks and slides fully retracted — checking fluid level with jacks extended will give an inaccurate reading. A fill level indicator line on the reservoir shows the correct level.
Have your pump model number ready when contacting EQ Systems support. EQ Systems provides a Replacement Reservoir Chart through their service and support documentation to help confirm the correct reservoir for your pump. Technical Support: EQ Systems Toll Free: 1-800-846-9659 Local: 574-264-3437 Hours: Monday–Friday, 7AM–4PM EST Manufacturer: EQ Systems — 19300 Grange St, Cassopolis, MI 49031