Shaft Sleeves
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Armstrong 10k011603 Shaft Sleeve
Armstrong 10k011603 Shaft Sleeve
Item #ARM-10K011603
Armstrong Shaft Sleeve — 10K011603 (Keyway + Threaded)
Precision-machined stainless steel shaft sleeve for Armstrong 4030 and 4280 end-suction pumps. Designed to fit over the shaft in the seal/packing area, it provides a corrosion-resistant, replaceable sealing surface to protect the shaft and improve service life in high-temperature, high-flow systems.
At a glance:
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Part/Ref.: 10K011603
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Material: Stainless steel
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Features: Keyway and threaded end
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Function: Shaft protection + seal-ready surface (mechanical seal or packing)
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Compatibility: Armstrong 4030 and 4280 pump families (verify against your pump BOM/nameplate).
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Specifications: 1.125″ ID × 1.375″ OD × 2.625″ length
Why choose this sleeve:
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Protects the shaft—sleeve takes the wear, not the shaft
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Seal-ready finish for consistent sealing performance
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Corrosion-resistant stainless construction for demanding duty
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Berkeley S19310 Shaft Sleeve
Berkeley S19310 Shaft Sleeve
Item #SH-S19310
Berkeley S19310 Shaft Sleeve — Slip-Fit (19310)
The Berkeley S19310 shaft sleeve is a stainless steel slip-fit sleeve for 1-1/4″ Berkeley Type B pumps, equivalent to Berkeley part numbers S19310 and S19310L. It carries the wear at the seal face so the pump shaft doesn’t — a $30 sleeve replaces what would otherwise be a shaft replacement or a scrapped rotating assembly.
A chamfered lead-in eases installation without rolling the seal elastomer, and a machined groove in the outer diameter seats the S11207 external retaining ring for positive axial location.
At a glance
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19310 stainless shaft sleeve, O-ring, and S11207 snap ring
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Dimensions: 1.00″ ID × 1.25″ OD × 2.25″ length
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Material: stainless steel
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Fit: slip-fit, chamfered lead-in
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Retained by: S11207 external retaining ring (included)
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Mates with: 185-type mechanical seal (Berkeley S32014), S05126 and S04757 volute gaskets
What’s included
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19310 stainless shaft sleeve, O-ring, and S11207 snap ring
Fits Berkeley Type B
Used across Berkeley Type B single-stage centrifugal pumps built on the 1-1/4″ seal size, including ZPLS, ZPHS, ZPMS, TPLS, TPMS, and WPS series models. Check your nameplate for seal size before ordering.
Cross-Reference: Berkeley S19310
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Berkeley: S19310 / S19310L / 19310 / S-19310
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Service group: S32014 seal, S19310L sleeve, S11207 retaining ring, S05126 gasket
A worn sleeve is the most common reason a new mechanical seal fails early. If the old sleeve has a visible track where the seal faces rode, replace it — new faces running on a grooved sleeve will weep within hours.
Ordering tip: Verify ID, OD, and length against your pump’s parts list or nameplate before ordering. Contact us with your Berkeley model number and we’ll confirm the fit.
The sleeve is one of three parts in this joint.
Berkeley’s Type B service group is the seal, the sleeve, the retaining ring, and the volute gasket. The ring ships with this sleeve — here are the other two.
• PS-185 Mechanical Seal — replaces Berkeley S32014. 1-1/4″ shaft, 1.875″ × 0.437″ seat, Type N-11 (Type C/21). Nitrile, Viton, and SiC/SiC options.• Berkeley S04757 Volute Gasket — the case gasket that comes off with the wet end. Single-use; a compressed fiber gasket won’t re-seal.Installing the seal? A drop of P-80 rubber lubricant lets the elastomer slide over the chamfer instead of rolling or nicking.
Want it in one box? Get the seal, sleeve, and gasket together in the Berkeley Type B Pump Repair Kit — or call/text 561-414-1046 with your model and we’ll quote the full set.
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Looking for more? Shop Pump Repair kits, Gaskets, OEM seals, & Shaft Seals

Bronze Shaft Sleeve1 in. ID x 1-1/4 in. OD (Paco 05008976B / Berkeley S19310L Size)
Bronze Shaft Sleeve1 in. ID x 1-1/4 in. OD (Paco 05008976B / Berkeley S19310L Size)
Item #N/A
This bronze shaft sleeve fits centrifugal pumps with a 1 in. shaft and takes a 1-1/4 in. mechanical seal or packing. Choose your length from the dropdown: 2-1/4 in., 3-1/2 in. or 4 in. It is precision machined from bronze, so it resists corrosion in water service. It is a plain straight sleeve with no shoulders, keyways or threads.
Why replace the shaft sleeve
The seal or packing runs on the sleeve, not the shaft. Once the sleeve is scored or pitted, even a new seal can leak, and worn packing keeps cutting deeper. A new sleeve at every seal change protects the shaft and gives the seal a true surface to run on.
At a glance
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Material: Bronze
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Inside diameter: 1 in. (fits a 1 in. shaft)
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Outside diameter: 1-1/4 in. (takes a 1-1/4 in. mechanical seal or packing)
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Lengths: 2-1/4 in., 3-1/2 in., 4 in.
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Style: Plain straight sleeve, no shoulders, keyways or threads
Cross references
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3-1/2 in. length: same size as Paco 05008976B / Grundfos 91843687 (bronze, 1.000 x 1.25 x 3.50 in.)
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2-1/4 in. length: same size as Berkeley S19310L (Berkeley’s original is stainless steel; this is the bronze alternative). Berkeley Type B pumps on the 1-1/4 in. seal: ZPLS, ZPHS, ZPMS, TPLS, TPMS, WPS
How to check the fit
Measure the old sleeve: inside diameter, outside diameter and overall length. Match all three to the dropdown. Looking for a brand-specific sleeve? See our Paco shaft sleeve (1.00 in. x 1.25 in. x 2.38 in.) and Sta-Rite C23-58 stainless shaft sleeve. Not sure? Text a photo of the old sleeve to 561-414-1046 and we’ll match it, no purchase required.
Replacing the seal too?This sleeve takes any 1-1/4 in. mechanical seal. Replace the seal and sleeve together so the new seal runs on a true surface.
- 185c PS-185 seal — 1-1/4 in., replaces Berkeley S32014
- 361c PS-361 / PS-2122 seal — 1-1/4 in., N-22
- 381c PS-381 seal — 1-1/4 in., N-33
Doing the job yourself? Read How to Replace a Mechanical Pump Seal.

Goulds 4K66 Shaft Sleeve3656 / 3756 S-Group
Goulds 4K66 Shaft Sleeve3656 / 3756 S-Group
The Goulds 4K66 shaft sleeve is a precision-machined 316 stainless steel sleeve for Goulds 3656 and 3756 S-Group end suction pumps with the 1-1/4 in. seal. It slides over the pump shaft so the mechanical seal runs on the sleeve instead of the shaft, and gives the seal a corrosion-resistant, replaceable running surface. It measures 1.000 in. ID x 1.250 in. OD x 1.500 in. long. Built to OEM-equivalent standards or higher.
Why replace the sleeve with the seal
The seal runs directly on the 4K66 sleeve. Once the sleeve is scored or pitted, even a new seal can leak. Goulds puts a new 4K66 in its own 3656 S-Group seal kit for that reason, so fit a fresh sleeve every time you change the seal.
At a glance
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Part number: Goulds 4K66
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Material: 316 stainless steel
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Inside diameter: 1.000 in. (fits a 1 in. shaft)
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Outside diameter: 1.250 in. (takes a 1-1/4 in. mechanical seal)
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Length: 1.500 in.
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Style: Straight sleeve
Fits
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Goulds 3656 S-Group and 3756 S-Group end suction pumps with the 1-1/4 in. seal
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Seals that run on it: Goulds 10K13 or 9152071001 (our 185c, PS-185), Goulds 10K25 (Viton) and Goulds 10K64 (silicon carbide)
How to check the fit
Measure the old sleeve: 1.000 in. inside, 1.250 in. outside and 1.500 in. long means this is the 4K66. Not sure? Text a photo of the old sleeve or your pump nameplate to 561-414-1046 and we’ll match it, no purchase required.
Replacing the seal too?Goulds 3656 and 3756 S-Group pumps take a 1-1/4 in. seal. Change the seal and the 4K66 sleeve together.
- 185c PS-185 seal — 1-1/4 in., same size as Goulds 10K13 / 9152071001
- Goulds 10K64 mechanical seal — 1-1/4 in., SiC/SiC/Viton
- All Goulds mechanical seals
Doing the job yourself? Read How to Replace a Mechanical Pump Seal.

Griswold Shaft Sleeve 8287211Bronze, 1.00 in. ID x 1.24 in. OD, with O-Ring
Griswold Shaft Sleeve 8287211Bronze, 1.00 in. ID x 1.24 in. OD, with O-Ring
The Griswold shaft sleeve 8287211 is a precision-machined bronze sleeve for Griswold centrifugal pumps on the 1-1/4 in. seal. It slides over the pump shaft so the mechanical seal runs on the sleeve instead of the shaft, and it comes with the 022 O-ring that seals the sleeve to the shaft. It measures 1.00 in. ID x 1.24 in. OD x 2.40 in. long. Built to OEM-equivalent standards or higher.
Why replace the sleeve with the seal
The seal runs directly on the sleeve. Once the sleeve is scored or pitted, even a new seal can leak. Bronze resists corrosion, so a fresh sleeve at every seal change protects the shaft and gives the new seal a true surface to run on.
At a glance
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Part number: 8287211
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Material: Bronze
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Inside diameter: 1.00 in. (fits a 1 in. shaft)
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Outside diameter: 1.24 in. (takes a 1-1/4 in. mechanical seal)
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Length: 2.40 in.
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Includes: 022 O-ring
Seal it takes
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Griswold GRI-10036903 — 1-1/4 in. Type 21 seal, carbon/ceramic/Nitrile (US Seal PS-2122)
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Griswold GRI-10036903CNV (Viton) and GRI-10036903SSV (silicon carbide/Viton) builds of the same seal
How to check the fit
Measure the old sleeve: 1.00 in. inside, 1.24 in. outside and 2.40 in. long means this is the sleeve. Not sure? Text a photo of the old sleeve or your Griswold pump nameplate to 561-414-1046 and we’ll match it, no purchase required.
Replacing the seal too?This sleeve takes the 1-1/4 in. Griswold seal GRI-10036903. Change the seal and sleeve together so the new seal runs on a true surface.
- 361c / 2122 seal (PS-2122) — 1-1/4 in., replaces Griswold GRI-10036903
- All shaft sleeves & pump parts
Doing the job yourself? Read How to Replace a Mechanical Pump Seal.
Explore our full line up of Parts & Accessories
Looking for more? Shop Pump Repair kits, Gaskets, OEM seals, & Shaft Seals
Have questions? Call us anytime- we can help fit the right part to your application

Paco Shaft SleeveBronze, 1 in. ID x 1.25 in. OD
Paco Shaft SleeveBronze, 1 in. ID x 1.25 in. OD
Paco Shaft Sleeve — Bronze
The Paco shaft sleeve is a precision-machined bronze sleeve for Paco centrifugal pumps on the 1-1/4 in. seal. It slides over the pump shaft and takes the wear that would otherwise land on the shaft itself, so a rebuild means replacing an inexpensive sleeve instead of the shaft. It measures 1.00 in. ID x 1.25 in. OD x 2.38 in. long. Built to OEM-equivalent standards or higher.
Why replace the sleeve with the seal
A mechanical seal runs directly on the shaft sleeve. Once the sleeve is scored, pitted or corroded, even a brand-new seal can leak. Fitting a fresh sleeve at every seal change gives the seal a smooth, true surface to run on and helps it last.
At a glance:
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Brand: Paco centrifugal pumps
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Material: Bronze
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Inside diameter: 1.00 in. (fits a 1 in. shaft)
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Outside diameter: 1.25 in. (takes a 1-1/4 in. mechanical seal)
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Length: 2.38 in.
Seals that run on this sleeve:
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Paco 14007099 / 14007083 — our 361c (US Seal PS-361, Type 1 head)
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Paco 14032698, K105-1, K107-1, 91909832, 91909909 — our 361c / 2122 (US Seal PS-2122, Type 21 head)
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Paco 14033710 — our 185c (US Seal PS-185, Type 21 head)
How to check the fit
Measure the old sleeve before you order: inside diameter, outside diameter and overall length. If yours matches 1.00 in. x 1.25 in. x 2.38 in., this is the sleeve. For the seal, match the Paco number on your old seal or parts list to the list above. Not sure? Text a photo of the old sleeve or your pump nameplate to 561-414-1046 and we’ll match it, no purchase required.
Replacing the seal too?This sleeve takes the 1-1/4 in. Paco seal. Change the seal and sleeve together so the new seal runs on a true surface.
- 361c / 2122 seal — 1-1/4 in., replaces Paco 14007099 and 14032698
- 185c seal — 1-1/4 in., replaces Paco 14033710
- Bronze shaft sleeve — same 1 x 1-1/4 in. size in 2-1/4, 3-1/2 and 4 in. lengths
Doing the job yourself? Read How to Replace a Mechanical Pump Seal.
Explore our full line up of Parts & Accessories
Looking for more? Shop Pump Repair kits, Gaskets, OEM seals, & Shaft Seals
Have questions? Call us anytime- we can help fit the right part to your application

Peerless Shaft Sleeve 96690835 / 96678396Bronze, 1 in. ID x 1.25 in. OD, Drive Notch
Peerless Shaft Sleeve 96690835 / 96678396Bronze, 1 in. ID x 1.25 in. OD, Drive Notch
The Peerless shaft sleeve is a precision-machined bronze sleeve for Peerless C825A end suction pumps on 143–215JM motor frames (1 to 7.5 HP). It slides over the pump shaft so the mechanical seal runs on the sleeve instead of the shaft, and a drive notch on one end locks it in place during assembly. It measures 1.000 in. ID x 1.250 in. OD x 2.500 in. long. Built to OEM-equivalent standards or higher.
Why replace the sleeve with the seal
The seal runs directly on the sleeve. Once the sleeve is scored, pitted or corroded, even a new seal can leak. Bronze resists corrosion, and a fresh sleeve at every seal change gives the new seal a true surface to run on.
At a glance
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Replaces: Peerless 96678396 (bronze) / 96690835
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Material: Bronze
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Inside diameter: 1.000 in. (fits a 1 in. shaft)
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Outside diameter: 1.250 in. (takes a 1-1/4 in. mechanical seal)
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Length: 2.500 in.
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Feature: Drive notch on one end
Fits
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Peerless C825A pumps on 143JM to 215JM motor frames, 1 to 7.5 HP
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Seal used with this sleeve: Peerless 96748361, a 1-1/4 in. Type 21 seal with an O-ring mounted ceramic seat (US Seal PS-1109-CER; Viton version 96748363)
How to check the fit
Measure the old sleeve: 1.000 in. inside, 1.250 in. outside, 2.500 in. long with a notch on one end means this is the sleeve. Not sure? Text a photo of the old sleeve or your pump nameplate to 561-414-1046 and we’ll match it, no purchase required.
Need the seal too?Peerless pairs this sleeve with seal 96748361 (1-1/4 in. Type 21, O-ring seat). Call or text 561-414-1046 with your pump nameplate and we’ll quote the seal and sleeve together.
- Bronze shaft sleeve — 1 x 1-1/4 in. in 2-1/4, 3-1/2 and 4 in. lengths
- All shaft sleeves & pump parts
Doing the job yourself? Read How to Replace a Mechanical Pump Seal.
Explore our full line up of Parts & Accessories
Looking for more? Shop Pump Repair kits, Gaskets, OEM seals, & Shaft Seals
Have questions? Call us anytime- we can help fit the right part to your application

Sta-Rite C23-58 (2358) Shaft SleeveStainless Steel, 1 in. ID x 1-1/4 in. OD, with O-Ring
Sta-Rite C23-58 (2358) Shaft SleeveStainless Steel, 1 in. ID x 1-1/4 in. OD, with O-Ring
The Sta-Rite C23-58 shaft sleeve (2358) is a precision-machined stainless steel slip-fit sleeve for Sta-Rite pumps on the 1-1/4 in. seal, built on 184JM and 215JM motor frames. It slides over the motor shaft so the mechanical seal runs on the sleeve instead of the shaft. A chamfered lead-in makes it easy to start, a keyway in the bore at the other end drives it with the shaft, and the O-ring that seals it to the shaft is included. It measures 1.000 in. ID x 1.250 in. OD x 2.285 in. long. Built to OEM-equivalent standards or higher.
Why replace the sleeve with the seal
The seal runs directly on the sleeve. Once the sleeve is scored or pitted, even a new seal can leak. A fresh C23-58 at every seal change protects the shaft and gives the new seal a true surface to run on.
At a glance
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Part number: Sta-Rite C23-58 (2358)
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Material: Stainless steel
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Inside diameter: 1.000 in. (fits a 1 in. shaft)
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Outside diameter: 1.250 in. (takes a 1-1/4 in. mechanical seal)
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Length: 2.285 in.
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Chamfered lead-in; keyway in the bore at the non-chamfered end
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Includes: O-ring
Fits
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Sta-Rite pumps on 184JM and 215JM motor frames with the 1-1/4 in. seal
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Seals that run on it: Sta-Rite S32014 (our 185c, US Seal PS-185, used on Sta-Rite CC / C and D Series) and Sta-Rite S32013 (US Seal PS-2122)
How to check the fit
Measure the old sleeve: 1.000 in. inside, 1.250 in. outside and 2.285 in. long with a keyway in the bore means this is the C23-58. Not sure? Text a photo of the old sleeve or your pump nameplate to 561-414-1046 and we’ll match it, no purchase required.
Replacing the seal too?This sleeve takes the Sta-Rite 1-1/4 in. seal. Change the seal and sleeve together so the new seal runs on a true surface.
- 185c seal — 1-1/4 in., replaces Sta-Rite S32014
- 361c / 2122 seal — 1-1/4 in., PS-2122 replaces Sta-Rite S32013
- All Sta-Rite pump repair kits
Doing the job yourself? Read How to Replace a Mechanical Pump Seal.

Taco Shaft Sleeve 951-3038BRPBronze, 1-7/8 in. Seal Size
Taco Shaft Sleeve 951-3038BRPBronze, 1-7/8 in. Seal Size
The Taco 951-3038BRP shaft sleeve is a precision-machined bronze sleeve for Taco pumps on the 1-7/8 in. seal — the sleeve used in Taco seal kits 950-1369BRP and 951-2968BRP. It slides over the pump shaft so the mechanical seal runs on the sleeve instead of the shaft, protecting the shaft from wear in hydronic heating and cooling service. It measures 1.750 in. ID x 1.875 in. OD x 2.710 in. long. Built to OEM-equivalent standards or higher.
Why replace the sleeve with the seal
The seal runs directly on the sleeve. Once the sleeve is scored or pitted, even a new seal can leak. Taco includes a new sleeve in its own 1-7/8 in. seal kits for that reason, so fit a fresh 951-3038BRP every time you change the seal.
At a glance
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Part number: Taco 951-3038BRP (bronze); stainless version 951-3038RP
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Material: Bronze
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Inside diameter: 1.750 in. (fits a 1-3/4 in. shaft)
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Outside diameter: 1.875 in. (takes a 1-7/8 in. mechanical seal)
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Length: 2.710 in.
Fits
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Taco pumps that take seal kit 950-1369BRP or 951-2968BRP (1-7/8 in. seal)
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Seal that runs on it: Taco 951-2968RP, a 1-7/8 in. Type 21 seal (US Seal PS-340-EPR-CMS) — same size as our 340c
How to check the fit
Measure the old sleeve: 1.750 in. inside, 1.875 in. outside and 2.710 in. long means this is the 951-3038. Not sure? Text a photo of the old sleeve or your Taco pump nameplate to 561-414-1046 and we’ll match it, no purchase required.
Replacing the seal too?This sleeve takes the Taco 1-7/8 in. seal. Change the seal and sleeve together so the new seal runs on a true surface.
Doing the job yourself? Read How to Replace a Mechanical Pump Seal.
Explore our full line up of Sleeves
Looking for more? Shop Shaft Seals, Pump Repair Kits, OEM Seals and Gaskets.
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