EN186862LF Elite 1-1/4" I.D. Replacement Seal Kit – Bell & Gossett 186862LF
The EN186862LF Elite Seal Kit is a premium 1-1/4" I.D. Buna (Nitrile) replacement for Bell & Gossett 186862LF. Designed for small bearing pumps, this aftermarket seal kit provides durable, leak-free performance for hydronic, HVAC, and plumbing applications. It is ideal for both residential and commercial use and ensures your pumps operate at peak efficiency while protecting the bearing and shaft from damage.
🔑 Key Features
✅ OEM-quality performance at a cost-effective price
✅ Durable Buna (Nitrile) construction for chemical and water resistance
✅ Direct replacement for Bell & Gossett 186862LF, 186862, 186680, and Armstrong equivalents
✅ Designed for leak-free, long-lasting operation
✅ Compatible with numerous 1510 & 1531 series small bearing pumps
📊 Compatibility Reference Table
| Series | Pump Model | Seal Type | Inner Diameter |
|---|
| 1510 |
170X10 – 170Y31 |
Bronze Fitted / All Bronze Small Bearing |
1-1/4" |
| 1531 |
174X01 – 174X76 |
Bronze Fitted / All Bronze Small Bearing |
1-1/4" |
Includes both bronze fitted and all bronze pump configurations.
🔁 Replaces OEM Part Numbers
| Brand | OEM Part Numbers |
|---|
| Bell & Gossett |
186862, 186862LF, 186680 |
| Armstrong |
Equivalent small bearing pumps |
| Hydro-Valve |
Compatible small bearing configurations |
⚠️ Common Symptoms of Seal Failure
✅ Visible water leakage at the pump shaft
✅ Bearing noise or overheating
✅ Reduced flow performance or pressure loss
✅ Signs of corrosion, wear, or cracked seal faces
💡 Product Highlights
-
Reliable aftermarket replacement for Bell & Gossett 186862LF
-
Protects pumps from premature bearing and shaft damage
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Designed for durable, leak-free operation
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Cost-effective solution to extend pump service life
📊 Elite Seal Kits Comparison Chart
| Feature / Part | EN118681LF | EN186499LF | EN186862LF | EN186543LF |
|---|
| Seal Type |
Buna (Nitrile) |
Buna (Nitrile) |
Buna (Nitrile) |
Buna (Nitrile) |
| OEM Replacement |
Bell & Gossett 118681LF |
Bell & Gossett 186499LF |
Bell & Gossett 186862LF |
Bell & Gossett 186543LF |
| Inner Diameter |
1/2" |
3/4" |
1-1/4" |
1-5/8" |
| Pump Series Compatibility |
B&G 100, HV, LD, HD, PD, Bearing Assemblies; Armstrong S, H, 1050 Series |
1535 / 355S, 355T, 356T, 358S, 358T, 359T, 3510T, 3511T; Series 90 inline pumps; MF Series 60 pumps |
1510 & 1531 small bearing pumps |
1510 & 1531 large bearing pumps |
| Common Uses |
Hydronic, HVAC, plumbing systems |
Inline and MF pumps, 1.5–5HP, 115–460V |
Small bearing pumps, bronze fitted |
Large bearing pumps, bronze fitted |
| Replacement For |
B&G 118681, Armstrong 816706-001 / -021, Hydro-Valve RM-880W |
B&G 186499, 186499LF |
B&G 186862, 186862-LF, 186680 |
B&G 186543, 186543LF, P-63340 |
| Material |
Buna / Nitrile |
Buna / Nitrile |
Buna / Nitrile |
Buna / Nitrile |
| Key Symptoms |
Shaft leaks, bearing noise, reduced flow, corrosion |
Shaft leaks, unusual noise, pressure loss |
Shaft leaks, bearing wear, performance issues |
Shaft leaks, bearing wear, flow issues |
| Lead-Free |
✅ |
✅ |
✅ |
✅ |
💡 Quick Shopper Tips
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EN118681LF – Ideal for older B&G 100 / HV / LD / HD / PD series or Armstrong equivalents
-
EN186499LF – Best for mid-range inline pumps, MF Series 60, and Series 90 pumps
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EN186862LF – Designed for 1510 & 1531 small bearing pumps, bronze fitted or all bronze
-
EN186543LF – For 1510 & 1531 large bearing pumps, bronze fitted or all bronze
❓ Frequently Asked Questions (FAQ)
Q1: Is this seal kit lead-free?
A: Yes, the EN186862LF is manufactured lead-free to meet modern standards.
Q2: Can I use this on both Bell & Gossett and Armstrong pumps?
A: Yes, this kit is a direct replacement for B&G 186862LF and compatible small bearing Armstrong pumps.
Q3: How do I know if I need to replace my seal kit?
A: Look for leaks around the pump shaft, unusual noise, or performance loss — common signs of seal failure.
Q4: Does it come with installation instructions?
A: Instructions are not included, but standard pump rebuild procedures apply. Service manuals for your pump model outline installation.
