CAT 054-0016 RETAINER

CAT 054-0016 is a Caterpillar genuine hydraulic pump plunger slipper retainer (pure original factory information, no additional description). It is compatible with high-pressure axial piston pumps for C7/C9 engines (such as the CAT 352-0618 main pump). It is used with 053-5758 plungers, 053-5759 plunger sleeves, and 053-5834 retainers to lock the slipper and plunger rod, preventing loosening during high-pressure reciprocating motion and ensuring stable pump flow and pressure.

Core Parameters and Information

Item Details
Part Model: CAT 054-0016 (0540016) Slipper Retainer

Type: Elastic snap ring type, axial limit + circumferential anti-rotation, with positioning groove and elastic opening, compatible with plunger slipper ball socket end face

Material: 65Mn spring steel, galvanized passivation + Dacromet coating, salt spray resistant and corrosion resistant, hardness HRC42-48

Key Dimensions: Inner diameter 24 mm, outer diameter 30 mm, thickness 3 mm, opening width 2 mm, positioning boss height 1.5 mm, compatible plunger rod diameter 24 mm, weight 0.018 kg

Operating Parameters: Compatible working pressure ≤35 MPa, temperature resistance -40℃ ～ +120℃, compatible plunger reciprocating frequency ≤30 Hz

Installation Method After expanding the elastic opening with snap ring pliers, insert it into the annular groove of the plunger rod, ensuring it fits snugly against the end face of the slipper. After installation, check for any looseness or jamming.

Compatible Models and Assemblies

Compatible Parts: 053-5758 Plunger, 053-5759 Plunger Sleeve, 053-5834 Retainer, 352-0618 Main Pump Assembly

Compatible Equipment: CAT 320D/323D excavators, 950H/966H loaders, D6R bulldozers, etc., equipped with C7/C9 engines.

Matching Parts: 054-0016 Retainer, 053-5758 Plunger, 053-5759 Plunger Sleeve, 053-5760 Return Spring

Installation and Maintenance Points: Before installation, clean the retainer and the annular groove of the plunger rod, ensuring there are no burrs or oil stains. Check the retainer for deformation, cracks, or coating peeling, and ensure its elasticity is normal.

Expand the opening with snap ring pliers and insert it into the annular groove, ensuring it fits snugly against the slipper end face, guaranteeing complete embedding without axial movement.

After installation, test the plunger’s reciprocating motion for smooth movement; a high-pressure test should show no leakage and stable pressure.

Maintenance: Check elasticity and wear every 2000 working hours. Replace immediately if deformation, cracks, or loosening are observed to prevent plunger assembly failure.