High Pressure Plunger Pump · Frame size 4DX 4DX03ELR

Name: 4DX03ELR
Brand: CAT PUMPS
SKU: 4DX03ELR

This positive displacement, reciprocating plunger pump is constructed with a brass manifold, 304 stainless steel valve assemblies, solid ceramic plungers and standard NBR (Buna-N) seals and O-rings. "R" pump models include an integral pressure regulating valve.

Request this pump Data sheet (PDF) Spare parts

Technical specifications

Flow rate	1.1 l/min
Operating pressure	138 bar
Speed	1,750 min⁻¹
Inlet port	3/8" NPT(F)
Discharge port	3/8" NPT(M)
Shaft diameter	5/8" (hollow shaft)
Material	Brass

Downloads

CAD files

Spare parts

Click an item in the drawing or in the parts list to add it to your request list. We turn it into a quotation – no order is placed.

3 kits bundle wearing parts of this pump ↓

Skip the drawing, go to the parts list

Parts list

Item	Part no.	Description	Qty
5	549360	Screw, HH (M6 x 14)STCP	3
8	547153	Cover, BearingAL	1
10	14041	O-Ring, Bearing Cover - 70DNBR	1
11	55337	Seal, Oil, CrankshaftNBR	1
15	14488	Bearing, Ball, InnerSTL	1
20	547048	Rod, ConnectingTNM	2
25	133148	Crankshaft, 5/8", (2.0 mm)CM	1
27	15710	Bearing, Ball, OuterSTL	1
32	549726	Cap, Vented with O-Ring (Rain Cap)	1
33	14179	O-Ring, Oil Filler Cap - 70DNBR	1
37	92241	Gauge, Oil, Bubble with Gasket - 80D 1 - 2PC	1
38	44428	Gasket, Flat, Oil Gauge - 80DNBR	1
48	44842	Plug, DrainNY	1
49	14179	O-Ring, Oil Filler Cap - 70DNBR	1
53	49801	CrankcaseAL	1
64	46229	Pin, CrossheadCM	2
65	132190	Rod, PlungerBB	2
70	47215	Seal, OilNBR	3
71	133150	Retainer, Oil SealBB	1
90	542403	Plunger (M16 x 27)CC	2
98	46730	Washer, Seal - 90DNBR	2
99	542405	Retainer, Plunger (M6 x 35)S	2
100	46233	Retainer, SealD	2
106	48222	Seal, Low-Pressure with S-SpringNBR	2
120	547357	Case, SealBB	2
121	13976	O-Ring, Seal Case - 70DNBR	2
125	46240	Seal, High-PressureNBR	2
160	13965	O-Ring, Seat, Inlet - 70DNBR	2
161	545177	Seat, InletS	2
163	19285	O-Ring, Seat, Discharge - 70DNBR	2
164	545178	Seat, DischargeS	2
166	547098	ValveS	4
167	134579	SpringS	4
168	543988	Retainer, Spring, InletPVDF	2
169	49764	Retainer, Spring, DischargePVDF	2
172	142807	O-Ring, Valve Plug - 90DNBR	2
174	547104	Plug, Valve (M20 x 1.5) with O-RingBB	2
185	133149	Head, Manifold with Integral Regulator BodyBB	1
188	549357	Screw, HSH (M6 x 60)STCP	6
197	941516	Assembly, Garden Hose (3 /8" NPT[M] x 3/4" GH[F])BB	1
255	30516	Assembly, Bolt MountSTZP	1
401	32088	Handle, Adjustable (Not Shown) 1 and tighten using a wrench.NY
402	46570	Cap, Adjusting 1 11. Insert spring retainer and spring into the body.BB
408	33394	Spring, Pressure 1 12. Thread the adjusting cap into the body and set for system pressure.STZP
410	549352	Retainer, Spring 1 Injecting Pressure Chemical Draw Across OrificeSTCP	1
412	46251	Stem, Piston 1 NOTE: If unit is infrequently used or periodically stored, O-rings may become dryBB
414	28338	Backup Ring, Piston Stem 1 and will need to be replaced.PTFE
415	22056	O-Ring, Piston Stem - 70D 1 NOTE: Optimum performance of Chemical Injector occurs with a 35 ft.NBR	1
423	46249	Retainer, Valve 1 NOTE: This pump has an internally bypassed regulator and if the pump is operatedBB
424	13966	O-Ring, Valve Retainer (Outer) - 70D 1 with no flow out the nozzles (100% bypass), heat damage will occur to the seals andNBR
425	46248	Retainer, Piston 1 valve retainers in a short period of time, requiring premature replacement.BB
426	46250	Washer 1 REGULATING DEVICES	1
428	26133	O-Ring, Piston Retainer - 80D 1 An integral regulator or unloader with built-in bypass is part of the dischargeNBR	1
429	17399	O-Ring, Plunger Retainer - 80DNBR
435	548193	Valve 1 fixed chemical injector is available. (See back page for proper model identifications)S	1
436	46253	SeatS	1
437	13963	O-Ring, Seat - 70D 1 OPERATIONNBR	1
446	26133	O-Ring, Piston Retainer - 80D 1 An integral regulator or unloader with built-in bypass is part of the dischargeNBR	1
460	107681	Fitting, Discharge [3/8" NPT(M)] 1 BY-PASSBB	1
468	76754	Kit, O-Ring (Includes: 414, 415, 424, 428, 429, 437) StandardNBR	1
–	6132	Oil, Crankcase, Bottle 1l	1

in the request list covered by a requested kit

Seal and valve kits

A kit bundles the wearing parts of one assembly. Selecting it highlights the items it covers in the drawing and the parts list – once requested, they stay marked.

Seal kits

Seal kit

76054

NBRMedium Nitrile (Buna-N)

contains 4 items · one kit per pump
Parts list
- 98 46730 Washer, Seal - 90D 2×
- 106 48222 Seal, Low-Pressure with S-Spring 2×
- 121 13976 O-Ring, Seal Case - 70D 2×
- 125 46240 Seal, High-Pressure 2×

Repair kits

Repair kit

76031

NBRMedium Nitrile (Buna-N)

contains 4 items · one kit per pump
Parts list
- 425 46248 Retainer, Piston 1 valve retainers in a short period of time, requiring premature replacement. 1×
- 428 26133 O-Ring, Piston Retainer - 80D 1 An integral regulator or unloader with built-in bypass is part of the discharge 1×
- 436 46253 Seat 1×
- 437 13963 O-Ring, Seat - 70D 1 OPERATION 1×

Valve kits

Valve kit

77032

NBRMedium Nitrile (Buna-N)

contains 9 items · one kit per pump
Parts list
- 160 13965 O-Ring, Seat, Inlet - 70D 2×
- 161 545177 Seat, Inlet 2×
- 163 19285 O-Ring, Seat, Discharge - 70D 2×
- 164 545178 Seat, Discharge 2×
- 166 547098 Valve 4×
- 167 134579 Spring 4×
- 168 543988 Retainer, Spring, Inlet 2×
- 169 49764 Retainer, Spring, Discharge 2×
- 172 142807 O-Ring, Valve Plug - 90D 2×