Gorman-Rupp T3A3S-B Super T Series Pump
Spare Parts for the Gorman-Rupp T3A3S-B Self-priming trash pump
Product Summary
Genuine OEM spare parts for the Gorman-Rupp T3A3S-B, a self-priming trash pump that handles solids-laden liquids and re-primes automatically. Impellers, seals, wear parts, check valves and bearings are listed below with Gorman-Rupp part numbers from manual OM-05140-02.
Spare Parts List
✓ Tick the parts you need. Codes are as printed in the Gorman-Rupp parts list; build variants and older serial numbers can use different parts, so pick your model in the form below. Not sure? Add a photo of the nameplate (model and serial number) and we’ll match the parts for you.
| Select | Part (as printed by Gorman-Rupp) | Part number & reference |
|---|---|---|
| Wear & Service Parts | ||
| Impeller | Part no. 11406 11010 · Item 1 | |
| Seal Assy | Part no. 46513-150 · Item 2 | |
| Wear Plate Assembly | Part no. 11407A 15990 · Item 4 | |
| 3" Flap Valve Assy | Part no. 46411-060 · Item 27 | |
| Repair Rotating Assy (T3A3S-B, /F, /FM) | Part no. 44163-259 | |
| Repair Rotating Assy (T3A3S-B /WW) | Part no. 44163-304 | |
| Repair Rotating Assy (T3A3S-B /WWS) | Part no. 44163-270 | |
| Fill Cover Plate Assy | Part no. 42111-344 · Item 34 | |
| Cover Gasket | Part no. 50G 19210 | |
| Shim Set | Part no. 13130-3 17040 · Item 32 · Qty 8 | |
| SST Cart. Seal Assy (Other Stainless Steel Parts) (optional) | Part no. 46513-157 | |
| Seal Assembly (optional) | Part no. 12364A | |
| Metal Bellows Mech Seal Assy (Viton Or Equal) (optional) | Part no. 46512-147 | |
| Metal Bellows Mech Seal Assy (Kalrez) (optional) | Part no. 46512-142 | |
| Check Valve Assys (Viton Blow-out) (optional) | Part no. 46411-074 | |
| Check Valve Assys (Buna-n) (optional) | Part no. 46411-102 | |
| Check Valve Assys (Epdm) (optional) | Part no. 46411-120 | |
| Shaft Sleeve (Mechanical Seal) (optional) | Part no. 11876A 16000 | |
| SST Shaft Sleeve (Mechanical Seal) (optional) | Part no. 11876A 1706H | |
| Aflas Seal (Mechanical Seal) (optional) | Part no. 46512-194 | |
| Seals, Bearings & Shaft | ||
| O-Ring | Part no. 25152-446 · Item 5 | |
| O-Ring | Part no. S1748 · Item 8 · Qty 2 | |
| O-Ring | Part no. S1472 · Item 15 | |
| Suction Flange Gasket | Part no. 11412G 19370 · Item 26 | |
| Gasket | Part no. 25113-033 · Item 29 | |
| Seal Plate | Part no. 11837D 10010 · Item 4 | |
| Gasket | Part no. 10959G 20000 · Item 5 | |
| Oil Seal | Part no. S1352 · Item 6 · Qty 3 | |
| Gasket | Part no. 38683-268 18000 · Item 20 | |
| Ball Bearing | Part no. S1749 · Item 22 | |
| Impeller Shaft | Part no. 38514-563 16040 · Item 24 | |
| Ball Bearing | Part no. 23252-013 · Item 25 | |
| O-Ring | Part no. 25154-022 · Item 28 · Qty REF | |
| Seal Plate (G-r Hard Iron Parts) (optional) | Part no. 11837D 1102H | |
| Seal Plate (Other Stainless Steel Parts) (optional) | Part no. 38272-240 1718H | |
| Impeller Shaft (Other Stainless Steel Parts) (optional) | Part no. 38514-563 1706H | |
| Rotating Assembly O-Rings (Aflas) (optional) | Part no. 25150-411 | |
| Rotating Assembly O-Rings (Viton) (optional) | Part no. 25154-447 | |
| Rotating Assembly O-Rings (Epdm) (optional) | Part no. 25150-921 | |
| Rotating Assembly O-Rings (Neoprene) (optional) | Part no. 25151-447 | |
| Other Core Parts | ||
| Back Cover Assembly | Part no. 42111-836 · Item 9 | |
| Pressure Relief Valve | Part no. 26662-005 | |
| Suction Flange (T3A3S-B) | Part no. 11412 10010 | |
| Suction Flange (T3A3S-B /F, /WW, /WWS) | Part no. 11412A 10010 | |
| Suction Flange (T3A3S-B /FM) | Part no. 38642-208 10000 | |
| Discharge Flange | Part no. 1753A 10010 · Item 30 | |
| Sight Gauge | Part no. S1471 · Item 14 · Qty 2 | |
| /F Flange Kit (optional) | Part no. 48213-040 | |
| Pressure Relief Valves (Stainless Steel) (optional) | Part no. 46431-803 | |
How we confirm the exact part: Part numbers on this page are as printed in Gorman-Rupp manual OM-05140-02, parts list for serial numbers 1708473 and up. Pumps with earlier serial numbers, an “N” serial suffix or a different build can use different parts, so send the serial number or a nameplate photo and we’ll confirm the right part before we quote.
Service Intervals & When to Replace
- Daily: check general condition (temperature, noise, vibration, leaks) and pump performance (gauges, speed, flow).
- Lubrication: check bearing and seal-cavity lubrication weekly; replace the oil annually (SAE No. 30 non-detergent oil where specified).
- Every six months: inspect front impeller clearance (wear plate) and rear clearance (seal plate) and adjust or replace worn parts.
- Annually: inspect the check valve, bearings, shaft deflection and pump-to-driver alignment; clean the pressure relief valve.
- New applications: inspect wearing parts after the first 250 hours to set your wear rate. Intervals assume about 4,000 hours a year of intermittent duty; shorten them for abrasive or continuous duty.
Models
Model code: T3A3S-B. Suffixes such as /F, /FM, /WW and /WWS mark build variants (for example flanged or metric-flanged ports) that change some parts, so check the full model code and serial number on the nameplate.
Models & Key Specifications
| Model | Series | Ports (suction x discharge) | Max solids | Seal (as listed) | Parts list |
|---|---|---|---|---|---|
| T3A3S-B | Super T Series | 3" (80 mm) | 2.50" (64 mm) | Seal Assy | OM-05140-02 (S/N 1708473+) |
Port size and solids handling from Gorman-Rupp model data; parts from manual OM-05140-02. Typical uses: sewage lift stations, mine and quarry dewatering, stormwater and industrial effluent.
Troubleshooting
Pump fails to prime
Likely cause: Not enough liquid in the casing, a contaminated or damaged suction check valve, an air leak in the suction line, or a leaking or worn seal or gasket. Action: Fill the casing, clean or replace the check valve, correct leaks and check pump vacuum; replace a leaking or worn seal or gasket.
Low flow or pressure
Likely cause: Impeller or other wearing parts worn or damaged, impeller clogged, or suction lift too high. Action: Replace worn parts and check the impeller is centred and turns freely (adjust wear plate clearance); clear debris; reduce suction lift.
Pump clogs frequently
Likely cause: Discharge flow too slow, a clogged or binding check valve, or liquid too thick. Action: Open the discharge valve fully to raise the flow rate, clean the check valve, and dilute if possible.
Excessive noise
Likely cause: Cavitation, entrained air, loose mounting, or a clogged or damaged impeller. Action: Reduce suction lift and losses, remove the air source, secure the mounting, and clear or replace the impeller.
Bearings run too hot
Likely cause: Low or incorrect lubricant, unsupported piping or a misaligned drive. Action: Check lubricant type and level, support the piping and align the drive.
Request for Quotation
Selected Parts:
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Not sure which parts? Just send a photo of the nameplate or part below.
Gorman-Rupp T3A3S-B spare parts: frequently asked questions
Tap a question to see the answer.
What spare parts are listed for the Gorman-Rupp T3A3S-B?
Parts come from Gorman-Rupp manual OM-05140-02, grouped as wear and service parts; seals, bearings and shaft; and other core parts. They include the impeller, seal assembly, wear plate assembly, flap valve assembly, repair rotating assembly and fill cover plate assembly, each listed with its Gorman-Rupp part number as printed.
Why won’t my T3A3S-B prime?
Likely causes from the troubleshooting guide: not enough liquid in the casing, a contaminated or damaged suction check valve, an air leak in the suction line, or a leaking or worn seal or gasket. The fixes are in the troubleshooting table above.
How do I restore lost flow or pressure on a T3A3S-B?
The troubleshooting guide on this page lists the likely causes as: impeller or other wearing parts worn or damaged, impeller clogged, or suction lift too high. Replace worn parts and check the impeller is centred and turns freely (adjust wear plate clearance); clear debris; reduce suction lift.
How do I make sure I order the right T3A3S-B parts?
Tick the parts you need and your selection carries into the quote form. Add a nameplate photo or serial number and we’ll confirm the parts before quoting. See other models in our Super T Series parts, or all Gorman-Rupp spare parts.