• Ace FMCSC-255F-HYD-304 centrifugal pump
  • Ace FMCSC-255F-HYD dimension drawing
  • Ace FMCSC-255F-HYD exploded parts view
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Ace Pumps

FMCSC-255F-HYD-304 — Pump, Hydraulic, 300 x 220 Flange, PRO5 Seal

FMCSC-255F-HYD-304 — Pump, Hydraulic, 300 x 220 Flange, PRO5 Seal

$1,420.80 USD
$2,368.00 USD $1,420.80 USD
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Special order — allow about 2 weeks for shipping. Need it faster? Call (509) 838-2209 and we’ll check availability.
Special-order items may be non-returnable.

Questions on fitment? Need a different size or quantity?

Talk to Shayne, Brett or Jordan: real people who work on sprayers. Meet the crew
(509) 838-2209 Mon–Fri 9 AM–5 PM Pacific · Spokane, WA
Request a quote or ask about this part by email

Backorder request — tell us how many you need. We’ll confirm price and lead time before ordering; nothing is charged until you approve.

Part: APFMCSC-255F-HYD-304 — we'll include the part number and link with your message.

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FMCSC-255F-HYD-304 hydraulic-driven centrifugal pump, 300 x 220 flange ports, Pro5 mechanical seal (silicon carbide, severe duty). For agricultural spraying and liquid transfer applications.

Service Parts

Ref. Part No. Description Qty
1 BAC-53 Pipe plug 4
1 41120 Pipe plug, stainless steel (optional) 4
2 BAC-12-255-FLG Volute, cast iron, 300 x 220 flanged, e-coated 1
2 BAC-12-255-FLG-SS Volute, stainless steel, 300 x 220 flanged 1
3 BAC-23-B-SS Nut, 3/8" NF, SS 1
4 BAC-24-B-SS Washer, 3/8" SS, vibration proof 1
5 BAC-26-200-P Impeller, thermoplastic, keyway 1
5 BAC-26-200-CI Impeller, cast iron, keyway (optional) 1
5 BAC-26-200-SS Impeller, stainless steel, keyway (optional) 1
6 BAC-4-150 O-ring, body seal 1
7 BAC-7SC-205V Seal, type 2106 silicon carbide mechanical seal 1
8 BAC-14-5-HYD Mounting frame, cast iron, e-coated 1
8 BAC-14-5-HYD-SS Mounting frame, stainless steel 1
9 41330 Cap screw, 5/16" NC x 3/4" 2
10 40950 Cap screw, 3/8"NC x 3/4" hex head 4
10 40930 Cap screw, 3/8"NC x 3/4" hex head, stainless steel (optional) 4
11 BAC-54 Slinger 1
12 BACH-32-HD Snap ring, external, shaft 3
13 BACH-33 Snap ring, internal, mounting frame 2
14 40880 Bearing 2
15 BAC-25 Key, 1/8" x 1/8" x 13/16" SS 1
16 BAC-6-255-HYD-SS Shaft, .625 DIA, 255, SS 1

Hydraulic Motor

Ref. Part No. Description Qty
17 S305 Seal support spacer (304N) 1
18 BAC-75-HYD-304 Hydraulic motor, 9 GPM (includes 17,18, 19,20,21,22,23, 24) 1
19 41875 O-ring, #8 SAE fitting 1
20 41445 O-ring, #10 SAE fitting 1
21 BAC-78-10SAE Reverse check assembly, #10 SAE x 1/2" NPT, w/ O-ring 1
21A BAC-78-10X10SAE Reverse check assembly, #10 SAE x #10 SAE, w/ O-ring (optional) 1
22 BAC-80-8SAE Body, restrictor orifice, #8 SAE x 1/2"NPT, w/ O-ring 1
23 41448 O-ring, restrictor 1
24 BAC-79-8 Orifice insert, restrictor, w/ O-ring (304) (Do not use with 304-PWM) 1
25 LS-304N Flow limiting valve, #8 MSAE x 1/2" FNPT (304) (optional) 1

Repair Kits

Kit No. Description
RK-FMCSC-PRO5 Repair Kit Assembly
RK-BAC-75-HYD-300-L Repair Kit Assembly, 300 Hydraulic Motor

Parts per Ace Pump Corporation product sheet FMCSC-255F-HYD (rev 04/25). Not sure which part you need? Send a photo of the pump tag to sales@spraycenter.com or call (509) 838-2209.

Specs & Downloads

The image gallery includes a dimension drawing for mounting; an exploded view with numbered callouts that follow Ace's parts list. Click any image to zoom.

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