CAT Pumps 3535 Brass Triplex Plunger Pump – 36 GPM @ 1200 PSI – 35-Frame

Title (copy/paste ready):
CAT Pumps 3535 Brass Triplex Plunger Pump 36 GPM 1200 PSI 35-Frame Ceramic Plungers

Description:

Up for sale is a genuine CAT Pumps Model 3535 triplex (3-plunger) positive-displacement plunger pump. This is the brass-manifold version of the popular 35-frame series — a workhorse industrial pump still in current production.

Key Specs

Max Flow: 36 GPM (136 LPM)
Pressure Range: 100–1200 PSI (7–85 bar)
RPM: 800
Bore / Stroke: 1.575" / 1.890" (40 / 48 mm)
Inlet Ports: (2) 1½" NPTF
Discharge Ports: (2) 1" NPTF
Shaft Diameter: 1.378" (35 mm)
Drive Options: Belt, flexible coupling, or bellhousing
Max HP Required: ~30 HP at 1200 PSI
Max Liquid Temperature: 160 °F (71 °C)
Crankcase Capacity: 4.2 quarts (4 L)
Weight: 139 lbs (63 kg)
Dimensions: 23.87" × 18.11" × 9.72"

Construction

Chrome-plated brass manifolds (BBCP)
304 stainless steel valve assemblies
Solid ceramic plungers
NBR (Buna-N) seals & O-rings
Dual V-packings lubricated by the pumped liquid

35-Frame Family

Model	Material
3535 / 3535C	Brass (standard / flushed)
3531 / 3531C	316 Stainless Steel
3537	Nickel Aluminum Bronze

Ideal for: high-pressure cleaning systems, hydrostatic testing, reverse osmosis, chemical injection, car washes, industrial process water, and other continuous-duty applications that need reliable high-pressure flow.

This is a heavy-duty industrial pump built for long service life when properly maintained.

Condition: Please see photos for exact condition. (Add your own notes here — e.g., “tested and runs strong,” “new surplus,” “used – good working condition,” etc.)

What’s Included: Pump only (or list any accessories you have: pulley, base, unloader, etc.)

Brand	CAT
Type	Water
MPN	3535

CAT Pump 3535 Frame Plunger Pump

Shipping

Specifications