Interpump PUMP W3521 R

Technical Documents

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1 Technical Document Available
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InterpumpPumps & Compressors
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Interpump PUMP W3521 R

SKU 3G-ITP-01721

Brand
Interpump
Item
PUMP W3521 R
Category
Pumps & Compressors

Technical Specifications

Interpump
Flow Rate
21 L/min
Pressure
350 bar
Power
14.7 kW
Speed
1450 RPM
Weight
19.5 kg
Dimensions
351.5 mm
Power
20 HP
Flow (US)
5.55 GPM
Pressure
35 MPa
Pressure
5075 PSI
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Solutions Engineering

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Interpump Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

PUMP W3521 R represents Interpump's reliable industrial pump solution, engineered for demanding high-pressure applications. Delivering 14.7 kW of power with a maximum pressure rating of 350 bar, this Italian-manufactured unit operates at 1450 RPM with a flow rate of 21 L/min. Weighing 19.5 kg, the pump's compact 351.5 mm length makes it suitable for integration into industrial systems requiring consistent performance. Ideal for hydraulic machinery, manufacturing equipment, and pressure-washing applications, the W3521 R provides dependable operation across various industrial sectors. Available from 3G Electric Singapore, an Interpump distributor, this industrial pump (SKU: W03521-000) offers quality engineering backed by regional support and expertise.

Spare Parts & Repair Kits

Official W3521 parts list — 276 parts, 54 available in catalog

Official Parts List
Exploded Diagram — Male shaft (key)View full size
W3521 — Male shaft (key)

Repair Kits — Order These for Routine Maintenance

KIT2
KIT 2 OIL SEAL D. 22X32X5,5
34000201×1Available
View
KIT3
KIT 3 OIL SEAL D.30X55X7
34000301×1Available
View
KIT150
KIT 150 INTAKE/DEL.VALVE
34015001×1Available
View
KIT176
KIT176 COMPLETE SEALS D.18
34017601×1Available
View
KIT180
KIT 180 SEALS D. 18
34018001×1Available
View

Individual Components

PosCodeDescriptionQty
6
INTAKE/DELIVERY VALVE
36712101×6Available
View
7
O-RING 17,12X2,62 (3068)
90384100×6Available
View
8
VALVE SEAT
36200366×6Available
View
9
SPHERICAL VALVE
36203266×6Available
View
10
SPRING D. 9,4X14,8
94737600×6Available
View
11
VALVE CAGE
36202551×6Available
View
12
ANTI-EXTRUSION RING
90511500×3Available
View
13
O-RING 17,86X2,62 (123)
90384300×3Available
View
15
O-RING 23,81X2,62 (132)
90385700×6Available
View
17
ANTI-EXTR.RING D.24.7x29x1.5
90516500×3Available
View
19
SCREW M 8x16 UNI 5931
99303900×8Available
View
20
View
21
O-RING 67,95X2,62 (3268)
90391300×2Available
View
22
O-RING 39,34X2,62 (3156)
90387700×1Available
View
23
OIL SIGHT GLASS
70211801×1Available
View
24
CIRCLIP D.45 (ZJ45)
90075600×1Available
View
25
ROLLER BEARING NJ2206EC
91838000×2Available
View
26
CRANKCASE
66010022×1Available
View
27
OIL DIP-STICK G3/8X80
98210600×1Available
View
28
CRANKSHAFT C.19 - D. 24 W3521
66020035×1Available
View

Need multiple parts? Request a bundled quote

54 parts available in our catalog — get a single quote with volume pricing

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Genuine manufacturer parts Expert technical support Worldwide shipping

Official W3521 parts list — Industrial Pumps (66 Series)

Recommended Spare Parts

Spare Parts

PACKING RETAINER D.18

66080370

Spare Parts

INTERMEDIATE RING D. 18

66216370

Spare Parts

PACKING 18.0x28x10.0 HP 66

90265500

Accessories

CIRCLIP D. 62 UNI 7437

90085000

Accessories

PLUG G3/8X13

98210000

Accessories

WASHER 21,5X27X1,5

96751400

Spare Parts

KIT 180 SEALS D. 18

34018001

Accessories

KEY 8(h9)X7X35 UNI 6604/A

91489200

Spare Parts

PISTON GUIDE - S.S.

66050066

Spare Parts

O-RING 10,82X1,78 (2043)

90358500

Spare Parts

ROLLER BEARING NUP206ECP

91837600

Valves

INTAKE/DELIVERY VALVE

36712101

Interpump Products

3G Electric supplies Interpump pumps & compressors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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