Gorman-Rupp T6A3S-B Super T Series Pump
Spare Parts for the Gorman-Rupp T6A3S-B Self-priming trash pump
Product Summary
Genuine OEM spare parts for the Gorman-Rupp T6A3S-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-05144-02.
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. 38615-087 11010 · Item 1 | |
| 1 7/8 Ctg Seal Assy | Part no. 46513-153 · Item 2 | |
| Wear Plate Assy | Part no. 46451-723 24150 · Item 4 | |
| 6" Flap Valve Assy | Part no. 46411-064 · Item 27 | |
| Repair Rotating Assy (T6A3S-B, /F, & /FM) | Part no. 44163-263 | |
| Repair Rotating Assy (T6A3S-B /WW) | Part no. 44163-303 | |
| Fill Cover Plate Assy | Part no. 42111-344 · Item 33 | |
| Cover Gasket | Part no. 50G 19210 | |
| /WWS Stainless Steel Parts (Seal Assembly) (optional) | Part no. 12590A | |
| Wear Plates (Spa Alloy) (optional) | Part no. 46451-729 24160 | |
| Wear Plates (Tungsten Carbide) (optional) | Part no. 46451-726 2415D | |
| Wear Plates (Stainless Steel) (optional) | Part no. 46451-723 1718H | |
| Check Valve Assys (Viton Blow-out) (optional) | Part no. 46411-088 | |
| Seals, Bearings & Shaft | ||
| O-Ring | Part no. 25152-453 · Item 5 | |
| O-Ring | Part no. S1676 · Item 8 · Qty 2 | |
| O-Ring | Part no. 25152-273 · Item 12 | |
| Suction Flange Gasket | Part no. 11402G 19370 · Item 26 | |
| Gasket | Part no. 25113-036 · Item 28 | |
| O-Ring | Part no. 25154-026 · Item 4 · Qty REF | |
| Seal Plate | Part no. 38272-254 10010 · Item 5 | |
| Gasket | Part no. 10959G 20000 · Item 6 | |
| Oil Seal | Part no. S1917 · Item 7 · Qty 3 | |
| Bearing Cap Gasket | Part no. 38683-473 18000 · Item 20 | |
| Ball Bearing | Part no. S1030 · Item 22 | |
| Impeller Shaft | Part no. 38514-818 16040 · Item 24 | |
| Ball Bearing | Part no. S616 · Item 25 | |
| Back Cover O-Rings (Viton) (optional) | Part no. 25154-454 | |
| /WWS Stainless Steel Parts (Impeller Shaft) (optional) | Part no. 38514-820 1706H | |
| Other Core Parts | ||
| Back Cover Assy | Part no. 42111-835 · Item 9 | |
| Inspect Cover Assy | Part no. 42111-452 · Item 13 | |
| Pressure Relief Valve | Part no. 26662-005 | |
| Suction Flange (T6A3S-B) | Part no. 11402 11010 | |
| Suction Flange (T6A3S-B /F & /WW) | Part no. 11402A 11010 | |
| Suction Flange (T6A3S-B /FM) | Part no. 38642-502 11010 | |
| Discharge Flange (T6A3S-B) | Part no. 1758 11000 | |
| Discharge Flange (T6A3S-B /F) | Part no. 11402B 11010 | |
| Discharge Flange (T6A3S-B /FM) | Part no. 38642-503 11010 | |
| Sight Gauge | Part no. S1471 · Item 15 · Qty 2 | |
| /F Flange Kit (optional) | Part no. 48213-041 | |
| /FM Metric Flange Kit (optional) | Part no. 48213-078 | |
| Pressure Relief Valve (optional) | Part no. 46431-803 | |
How we confirm the exact part: Part numbers on this page are as printed in Gorman-Rupp manual OM-05144-02, parts list for serial numbers 1719237 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: T6A3S-B. 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 |
|---|---|---|---|---|---|
| T6A3S-B | Super T Series | 6" (150 mm) | 3.00" (76 mm) | 1 7/8 Ctg Seal Assy | OM-05144-02 (S/N 1719237+) |
Port size and solids handling from Gorman-Rupp model data; parts from manual OM-05144-02. 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:
- No parts selected
Not sure which parts? Just send a photo of the nameplate or part below.
Gorman-Rupp T6A3S-B spare parts: frequently asked questions
Tap a question to see the answer.
What spare parts are listed for the Gorman-Rupp T6A3S-B?
The list covers a complete repair rotating assembly, the silicon carbide mechanical seal, gasket and O-ring kits for the pump end and rotating assembly, impeller, wear plate and flap check valve, plus the cover plate O-ring, suction and discharge gaskets, impeller shaft, ball bearings, oil seal, sight gauge and pipe plug.
Can I replace the whole rotating assembly?
Yes. The T6A3S-B rotating assembly removes by loosening four bolts, and a complete repair rotating assembly is listed. Add your pump's serial number on the quote form so we can confirm the right assembly.
What causes the T6A3S-B seal to leak?
Worn seal faces or abrasion. The troubleshooting guide says to replace the mechanical seal, which uses silicon carbide faces. If the pump also struggles to prime, check the suction gaskets at the same time, because an air leak is the other listed cause.
How do I make sure I order the right T6A3S-B parts?
Tick the parts you need and your selection carries into the quote form, with a nameplate photo or serial number if you have one. See the T4A3S-B and T8A3S-B pages, or all Gorman-Rupp spare parts.