Skip to content

Silvan APS121 pump Replacement Spare Parts – Diaphragm, Valves & More

Keep Your Silvan APS121 Diaphragm Pump Running Smoothly

Essential genuine replacement spare parts for the Silvan APS121 diaphragm pump, designed for horticulture and agricultural farm spraying. Whether you need diaphragms, valves, seals, or other critical components, our high-quality parts ensure reliable performance and durability in demanding conditions.

Built for farmers, growers, and spraying professionals, these parts help minimize downtime and maximize efficiency during critical spraying seasons. Trust in OEM-compatible and aftermarket solutions to maintain your pump’s peak performance.

Browse now and keep your spraying equipment in top shape!

Filters

Surge Chamber diaphragm
$0.00 - $0.00
$0.00
$37.50
$37.50 - $37.50
$37.50

Silvan Comet Air Chamber Pulsator Diaphragm C1800-34

Low stock

Silvan Comet Replacement Air Chamber Pulsator Diaphragm – C1800-34 Keep your Silvan Comet diaphragm pump running smoothly with this genuine Air Cha...

View full details
Silvan Replacement Part Viewer-Oil (C0421-12)
$61.00 - $61.00
$61.00
$61.00 - $61.00
$61.00

Viewer-Oil

Low stock

Replacement Oil Viewer glass to suit Silvan - Comet pump models BP151-20, BP171-20, CDS960, CDS1401, APS96, APS121 and APS145

Silvan Replacement Part Valve Assy Suction/Delivery (C1220-34) Sold out
$60.00 - $60.00
$60.00
$60.00 - $60.00
$60.00

Valve Assembly Suction/Delivery – Suitable for Silvan / Comet APS 121, APS 145, APS 166 Pumps (C1220-34)

Out of stock

Direct-Fit Replacement Suction & Delivery Valve Assembly for Silvan / Comet APS Series Pumps Restore full pressure and flow to your high-pressu...

View full details
Silvan APS 121 pump Sold out
$3,520.00 - $3,520.00
$3,520.00
$3,520.00 - $3,520.00
$3,520.00

Silvan / Comet APS121 High Pressure Diaphragm Pump – Orchard, Vineyard & Pest Control

Out of stock

The Silvan / Comet APS121 is a heavy-duty, high-pressure diaphragm pump built for demanding commercial spraying applications — including orchard an...

View full details
Silvan Replacement Part Spring-Valve P Bp Ids (C1802-15)
Sold out
$8.20 - $8.20
$8.20
$8.20 - $8.20
$8.20

Spring-Valve P BP IDS + APS Ø13mmx 20mm

Out of stock

Inlet - Outlet Valve Assembly to suit Silvan Comet Diaphragm Pumps. Ø13mmx 20mm

Silvan Pump Diaphragm
Sold out
$0.00 - $0.00
$0.00
$48.40
$48.40 - $48.40
$48.40

Silvan C1800-12 High Pressure Pump Diaphragm - Italian Made

Out of stock

Premium Italian-Made Diaphragm for Silvan & Comet High Pressure PumpsRestore peak performance to your high-pressure diaphragm pump with this ge...

View full details
Silvan Replacement parts Air Valve- P Bp Ids+Az C3610-03
Sold out
$26.30 - $26.30
$26.30
$26.30 - $26.30
$26.30

Silvan Air Chamber Valve - P, BP, IDS & AZ Series

Out of stock

Genuine Silvan Air Chamber Valve for Multiple Pump Series Maintain optimal air pressure regulation in your Silvan pump with this essential air cham...

View full details
Silvan Replacement parts Washer Air Valve Cover C1209-33
Sold out
$4.60 - $4.60
$4.60
$4.60 - $4.60
$4.60

Silvan Air Valve Cover Washer

Out of stock

Air Valve Cover Sealing Washer for Silvan Pumps Ensure a leak-proof seal on your pump's air valve cover with this essential sealing washer. This pr...

View full details
ARAG 11/2" elbow hose barb on white back ground
$18.80 - $18.80
$18.80
$18.80 - $18.80
$18.80

40mm Hose Barb Elbow Fitting for use with 1-1/2" Fly nut

In stock

Use with 1-1/2" Fly Nut  and O-ring  

Silvan, Replacement parts Head for Aps Comet Pump C3218-99
Sold out
$247.00 - $247.00
$247.00
$247.00 - $247.00
$247.00

Head Aps

Out of stock

Silvan Replacement parts Plug - Suction Valve Retaing Cap Aps101-166 C3202-219
Sold out
$35.20 - $35.20
$35.20
$35.20 - $35.20
$35.20

Plug - Suction Valve Aps101-166

Out of stock

Silvan Replacement parts Plug - Delivery Valve Retaining Cap Aps101-166 C3202-218
Sold out
$45.10 - $45.10
$45.10
$45.10 - $45.10
$45.10

Plug - Delivery Valve Aps101-166

Out of stock

Silvan Replacement parts O-Ring C1210-191
Sold out
$2.80 - $2.80
$2.80
$2.80 - $2.80
$2.80

O-Ring Ø2,62x45,69

Out of stock

Silvan Replacement parts Flange Aps101-121-141&166 C1009-99
Sold out
$198.00 - $198.00
$198.00
$198.00 - $198.00
$198.00

Flange Aps101-121-141&166

Out of stock

Silvan Replacement parts Cap-Diaphragm Support C0460-36 underside
Sold out
$26.30 - $26.30
$26.30
$26.30 - $26.30
$26.30

Cap-Diaphragm Support

Out of stock

Silvan Replacement parts Seal-Oil C0019-87
$22.50 - $22.50
$22.50
$22.50 - $22.50
$22.50

Seal-Oil

Low stock

Silvan Replacement Part Valve-Poppett Bp P Ids Az (C3604-09)
$13.50 - $13.50
$13.50
$13.50 - $13.50
$13.50

Valve-Poppet BP, P, IDS, APS + AZ

Low stock

Inlet - Outlet Valve poppet to suit Silvan Comet Diaphragm Pumps

Silvan Replacement Part Valve Cage Aps (C1205-30)
Sold out
$14.00 - $14.00
$14.00
$14.00 - $14.00
$14.00

Valve Cage Aps

Out of stock

Inlet - Outlet Valve Cage to suit Silvan Comet APS 121, APS145, APS166 High Pressure Diaphragm Pumps

A silver metal hex socket screw with a threaded shank, shown on a plain white background with a faint watermark.
Sold out
$9.40 - $9.40
$9.40
$9.40 - $9.40
$9.40

Stud-F/Plate Az90 120 Apm10X35

Out of stock

Silvan Replacement spare parts O-ring C1210-702
Sold out
$20.30 - $20.30
$20.30
$20.30 - $20.30
$20.30

O-ring

Out of stock

Silvan Replacement Spare parts O-ring C1210-605
Sold out
$14.00 - $14.00
$14.00
$14.00 - $14.00
$14.00

O-ring

Out of stock

Silvan Replacement parts O-Ring C1210-002
Sold out
$2.55 - $2.55
$2.55
$2.55 - $2.55
$2.55

O-Ring Ø2,62x28,25

Out of stock

Silvan Replacement parts O-Ring 1 1/2 G10061 c1210-489 1210 0489
Sold out
$2.55 - $2.55
$2.55
$2.55 - $2.55
$2.55

O-Ring Ø2,62x22,22

Out of stock

Silvan Replacement parts Viewer-Oil C1208-018
Sold out
$135.00 - $135.00
$135.00
$135.00 - $135.00
$135.00

Viewer-Oil

Out of stock

Silvan Replacement parts Disc Diaphragm Az&Ids Series C0602-11
Sold out
$49.50 - $49.50
$49.50
$49.50 - $49.50
$49.50

Disc Diaphragm Az&Ids Series

Out of stock

A metallic roller bearing component shown at an angle on a white background, with a semi-transparent 'The Co-Op Farm Supply' watermark overlay.
Sold out
$315.00 - $315.00
$315.00
$315.00 - $315.00
$315.00

*Bearing-Needle

Out of stock

Silvan Replacement Part O-Ring (C1210-114)
Sold out
$2.55 - $2.55
$2.55
$2.55 - $2.55
$2.55

O-Ring Ø3,53x36,1

Out of stock

Valve Gasket O-ring suits Silvan - Comet Pump models APS121, APS145 and APS166 Ø3,53x36,1

Sold out
$4.20 - $4.20
$4.20
$4.20 - $4.20
$4.20

Stud Allen Head M8x16

Out of stock

Two silver metal hex socket screws with threaded shafts, shown overlapping on a plain white background.
Sold out
$12.00 - $12.00
$12.00
$12.00 - $12.00
$12.00

Stud-Piston Head Az + Aps

Out of stock

A black metal horseshoe-shaped ring or gasket with two small circular cutouts at the top, shown on a white background with a faint 'The Co-Op Farm Supply' watermark behind it.
Sold out
$13.50 - $13.50
$13.50
$13.50 - $13.50
$13.50

Circlip-Internal Ø72

Out of stock

A black metal circular spring clip or gasket with two small mounting holes, shown on a white background with a faint 'The Co-Op Farm Supply' watermark behind it.
Sold out
$9.40 - $9.40
$9.40
$9.40 - $9.40
$9.40

Circlip Int Ø90

Out of stock

Sold out
$49.50 - $49.50
$49.50
$49.50 - $49.50
$49.50

*Washer Thrust Aps

Out of stock

Sold out
$50.60 - $50.60
$50.60
$50.60 - $50.60
$50.60

*Washer Thrust Aps

Out of stock

A round Flat washer with a central label reading 'The Co-Op Farm Supply', shown on a plain white background.
Sold out
$2.80 - $2.80
$2.80
$2.80 - $2.80
$2.80

*Washer-Head Stud Az90+120

Out of stock

Silvan Replacement parts Tail Outlet 13Mm C2802-20
Sold out
$26.30 - $26.30
$26.30
$26.30 - $26.30
$26.30

Tail Outlet 13Mm

Out of stock

A technical part diagram showing a square metal mounting plate with a circular opening, labeled with the number 48. A faint 'The Co-Op Farm Supply' logo is visible behind the plate on a white background.
Sold out
$15.80 - $15.80
$15.80
$15.80 - $15.80
$15.80

Plate Retainer Ap/Aps

Out of stock

Black and white technical line drawing showing a cylindrical mechanical part with a dashed pointer line and the number 68 above it. A faint 'The Co-Op Farm Supply' watermark is visible in the center.
Sold out
$59.40 - $59.40
$59.40
$59.40 - $59.40
$59.40

NIPPLE G3/4-G3/4

Out of stock

Silvan Replacement parts Pressure Chamb Assy Aps71 C1225-14
Sold out
$304.00 - $304.00
$304.00
$304.00 - $304.00
$304.00

Pressure Chamb Assy APS-IDS

Out of stock

A black-and-white exploded parts diagram with numbered callouts 10, 11, 12, 13, and 14, showing a mechanical assembly on a white background. A faint 'The Op Farm Supply' watermark appears across the center.
Sold out
$82.00 - $82.00
$82.00
$82.00 - $82.00
$82.00

Valve Assy-Ball 1/2-1/2 Rh

Out of stock

A black and white exploded parts diagram of a mechanical lever assembly, with numbered callouts 1 through 5 and a faint 'The Co-Op Farm Supply' watermark in the center.
Sold out
$80.00 - $80.00
$80.00
$80.00 - $80.00
$80.00

Valve Assy-Ball 1/2-1/2 Lh

Out of stock

Silvan Replacement Spare parts O-ring C1210-605
$12.00 - $12.00
$12.00
$12.00 - $12.00
$12.00

O-Ring

Low stock

An Oring Ø2,62x145,72 featuring a faded farm illustration with the text 'The Co-Op Farm Supply' inside a black oval border, shown on a plain white background.
Sold out
$8.00 - $8.00
$8.00
$8.00 - $8.00
$8.00

O-Ring Ø3,53x98,02

Out of stock

A O-ring Ø3,53x196,4 shown vertically, centered over a faded rectangular sign reading 'The Co-Op Farm Supply' with a tractor illustration, on a white background.
Sold out
$14.30 - $14.30
$14.30
$14.30 - $14.30
$14.30

O-Ring Ø3,53x196,4

Out of stock

An O-ring C1210-353 shown over a faded rectangular sign reading 'The Co-Op Farm Supply' with a tractor illustration on a white background.
Sold out
$9.20 - $9.20
$9.20
$9.20 - $9.20
$9.20

O-Ring Ø2,62x145,72

Out of stock

Silvan Replacement parts O-Ring C1210-021
Sold out
$2.55 - $2.55
$2.55
$2.55 - $2.55
$2.55

O-Ring

Out of stock

Silvan Replacement parts O-Ring C1210-032
Sold out
$3.80 - $3.80
$3.80
$3.80 - $3.80
$3.80

O-Ring

Out of stock

Flange for APS pump
Sold out
$182.00 - $182.00
$182.00
$182.00 - $182.00
$182.00

Flange Ap100 Aps121

Out of stock

Sold out
$4.60 - $4.60
$4.60
$4.60 - $4.60
$4.60

Nut M8

Out of stock