High Pressure Plunger Pump · Frame size 68 PFR 6841

Name: 6841
Brand: CAT PUMPS
SKU: 6841

This triplex (three plunger rods) positive displacement, reciprocating plunger pump is constructed with 316 stainless steel block-style manifolds, 316 stainless steel valve assemblies, solid ceramic plungers and standard NBR (Buna-N) seals and O-rings.

Request this pump Data sheet (PDF) Spare parts

Technical specifications

Flow rate	182 l/min
Operating pressure	140 bar
Speed	615 min⁻¹
Inlet port	1 1/4" NPT
Discharge port	1 1/4" NPT
Shaft diameter	45 mm
Material	Stainless Steel

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.

2 kits bundle wearing parts of this pump ↓

Parts list

Item	Part no.	Description	Qty
2	43048	Key (M14 x 9 x 90) 1	1
5	89728	Screw, HH (M10 x 40)	8
6	15847	Lockwasher (M10)	8
7	19934	Washer, Flat (M10)	8
8	29443	Cover, Bearing, Outer	2
10	29444	O-Ring, Bearing Cover - 70D	2
11	11443	Seal, Oil, Crankshaft - 70D	2
12	126594	Washer, Shim (M120 x 0.3) 0 - 2	2
13	126595	Washer, Shim (M120 x 0.5) 0 - 2	2
15	29441	Bearing, Roller	2
16	29442	Cover, Bearing, Inner	2
17	29444	O-Ring, Bearing Cover - 70D	2
20	126612	Assembly, Connecting Rod (Includes: 21, 22)	3
25	29440	Crankshaft, Dual End (M65.5)	1
31	828710	Protector, Oil Cap with Foam Gasket 1	1
32	43211	Cap, Oil Filler	1
33	14177	O-Ring, Oil Filler Cap - 70D	1
34	126743	Bolt, Eye (M12x1.75) (For Lifting Pump Only)	1
38	11338	O-Ring, Valve Seat - 70D	1
39	27769	Dip Stick (Blue)	1
40	89627	Screw, HH (M10 x 30)	8
41	15847	Lockwasher (M10)	8
42	19934	Washer, Flat (M10)	8
48	25625	Plug, Drain (1/4" x 19 BSP[M])	1
49	23170	O-Ring, Drain Plug - 70D	1
50	29438	Cover, Rear	1
51	129386	Gasket, Rear Cover	1
53	45303	Crankcase w/Guide Pins (Inclds: 34, 54)	1
54	43282	Pin, Guide	2
64	29481	Pin, Crosshead	3
65	45384	Rod, Plunger	3
69	126588	Washer, Oil Seal	3
70	29454	Seal, Oil, Crankcase - 80D	3
75	44752	Slinger, Barrier - 85D	3
88	45677	Washers, Keyhole (M14)	3
90	44749	Plunger (M55 x 185)	3
90	45672	Plunger (M45x185) (M55x185)	3
95	44748	Stud, Plunger Retainer (M14 x 147)	3
96	20214	Backup Ring, Plunger Retainer	3
97	17616	O-Ring, Plunger Retainer - 80D	3
98	44751	Gasket, Plunger Retainer	3
99	44750	Retainer, Plunger (M14)	3
100	855000	Retainer, Seal, 2-Piece	3
104	18178	O-Ring, Spacer	3
105	701355	Adapter, LPS	3
106	44757	Seal, Low-Pressure with SS-Spring	3
106	106147	Seal, LPS w/SS-Spg	3
107	701356	Washer, LPS	3
110	46166	Manifold Inlet, Block-Style	1
111	701353	Plug, Inlet Manifold (2-1/2" NPTM)	1
117	89694	Screw, HSH (M16 x 110), Upper	6
118	701077	Plug, [1/4" NPT(M)]	3
123	18178	O-Ring, Spacer	3
124	701357	Cylinder, V-Packing	3
126	45771	Adapter, Female	3
126	701358	Adapter, Female	3
127	44764	V-Packing	6
127	104450	V-Packing	6
128	45772	Adapter, Male	3
128	701359	Adapter, Male	3
141	44943	Spring, Coil 18/24
142	45383	Spacer with Coil Springs	3
155	18178	O-Ring, Spacer	3
155	701978	O-Ring, V-Packing Spacer, Inner	3
156	701361	Back-up-Ring, Spacer, Inner	3
157	701362	Spacer, V-Packing w/Coil Springs	3
158	701363	Back-up-Ring, Spacer, Outer	3
159	18178	O-Ring, Spacer	3
160	44756	Pin, Guide IMDM	2
162	23116	Back-up-Ring, Cylinder	12
163	12392	O-Ring, Inlet Spacer - 70D	12
164	46173	Seat	6
166	44774	Valve	6
167	44773	Spring	6
168	44775	Retainer, Spring	6
170	44776	Washer, Retainer	6
171	701354	Spring, Coil, Retainer	6
179	46176	Manifold, Discharge - Block-Style	1
185	46171	Manifold, Valve - Block-Style	1
188	89694	Screw, HSH (M16 x 110), Upper	12
193	89694	Screw, HSH (M16 x 110), Upper	8
250	29445	Protector, Shaft (Included w/pump)	1
255	33243	Mount, Direct	1
259	126611	Mount, Rail Assembly (STZP R)	2
283	34334	Kit, Oil Drain (3/8" x 24") (Not Shown) 1	1
299	910200	-- -- Head, Complete, Block-Style	1
299	910201	-- -- Head, Complete, Block-Style	1
300	34106	Dichtungssatz, NBR	1
–	126560	Washer, Locking	3
–	126593	Washer, Flat (M10.5)	6
–	6138	Oil, Crankcase, Can 5l	2

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

34098

NBRMedium Nitrile (Buna-N)

contains 9 items · one kit per pump
Parts list
- 97 17616 O-Ring, Plungerhalter, NBR 3×
- 104 18178 O-Ring, Adapter, NBR 3×
- 106 106147 Dichtung, Niederdruck-, NBR 3×
- 123 18178 O-Ring, Zyl., V-Pack., NBR 3×
- 127 104450 V-Packung, STG 6×
- 155 701978 O-Ring, Zylinder, NBR 3×
- 156 701361 Stützring 3×
- 158 701363 Stützring 3×
- 159 18178 O-Ring, Zylinder, NBR 3×

Valve kits

Valve kit

34105

NBRMedium Nitrile (Buna-N)

contains 8 items · 2 kits per pump
Parts list
- 159 18178 O-Ring, Zylinder, NBR 3×
- 162 23116 Stützring, Ventilsitz 6×
- 163 12392 O-Ring, Ventilsitz, NBR 6×
- 164 46173 Ventilsitz 3×
- 166 44774 Ventil 3×
- 167 44773 Feder, Ventil 3×
- 168 44775 Federhalter, Ventil 3×
- 170 44776 Scheibe, Federhalter 3×