EN186499LF Elite Replacement Seal Kit – Bell & Gossett 186499LF 3/4" I.D.
The EN186499LF Elite Replacement Seal Kit is a premium aftermarket solution engineered for long-lasting performance in hydronic, HVAC, and plumbing systems. Built with durable Buna (Nitrile) material, this seal resists water, glycol, and other common system chemicals, making it ideal for residential, commercial, and industrial pump applications.
🔑 Key Features
✅ OEM-quality performance at a cost-effective price
✅ Durable Buna (Nitrile) construction for chemical resistance & longevity
✅ Direct replacement for Bell & Gossett 186499LF and Armstrong equivalents
✅ Designed for leak-free, long-lasting operation
✅ Compatible with mid-range inline pumps, MF Series 60, and Series 90 pumps
📊 Compatibility Reference Table
| Series | Pump Model | HP / Voltage |
|---|
| 1535 Series |
355S |
1-1/2HP 115/230 |
| 1535 Series |
355T |
1-1/2HP 208-230/460 |
| 1535 Series |
356T |
2HP 208-230/460 |
| 1535 Series |
358S |
1-1/2HP 115/230 |
| 1535 Series |
358T |
1-1/2HP 208-230/460 |
| 1535 Series |
359T |
2HP 208-230/460 |
| 1535 Series |
3510T |
3HP 208-230/460 |
| 1535 Series |
3511T |
5HP 208-230/460 |
| Series 90 |
90-4S |
1.5HP 3500 115/230/1/60 |
| Series 90 |
90-4T |
1.5HP 3500 TRI/3/60 |
| Series 90 |
90-5T |
2HP 3500 TRI/230/1/60 |
| Series 90 |
90-8S |
1.5HP 3500 115/230/1/60 |
| Series 90 |
90-8T |
1.5HP 3500 TRI/3/60 |
| Series 90 |
90-9T |
2HP 3500 TRI/3/60 |
| Series 90 |
90-10T |
3HP 3500 TRI/3/60 |
| Series 90 |
90-11S |
1.5HP 3500 115/230/1/60 |
| Series 90 |
90-11T |
1.5HP 3500 TRI/3/60 |
| MF Series 60 |
622S |
3/4HP 1750 115/208-230/1/60 |
| MF Series 60 |
623S |
1HP 1750 115/208-230/1/60 |
| MF Series 60 |
617S |
1-1/2HP 1750 115/208-230/1/60 |
| MF Series 60 |
624S |
1HP 1750 115/208-230/1/60 |
| MF Series 60 |
625S |
1-1/2HP 1750 115/208-230/1/60 |
| MF Series 60 |
622T |
3/4HP 1750 208-230/460/3/60 |
| MF Series 60 |
617T |
1-1/2HP 1750 208-230/460/3/60 |
| MF Series 60 |
618T |
2HP 1750 208-230/460/3/60 |
| MF Series 60 |
624T |
1HP 1750 208-230/460/3/60 |
| MF Series 60 |
625T |
1-1/2HP 1750 208-230/460/3/60 |
| MF Series 60 |
619T |
2HP 1750 208-230/460/3/60 |
| MF Series 60 |
620T |
3HP 1750 208-230/460/3/60 |
| MF Series 60 |
623T |
1HP 1750 208-230/460/3/60 |
Includes Series 90 Bronze Fitted, All Bronze, and Bearing Assemblies.
🔁 Replaces OEM Part Numbers
| Brand | OEM Numbers |
|---|
| Bell & Gossett |
186499, 186499LF |
| Armstrong |
Equivalent models (check pump compatibility) |
⚠️ Common Symptoms of Seal Failure
✅ Shaft leaks or visible water at the pump shaft
✅ Unusual bearing noise or overheating
✅ Reduced flow or pressure loss
✅ Signs of corrosion, wear, or cracked seal faces
📊 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, Obsolete series; Armstrong S, H, 1050 Series |
1535 Series, Series 90 inline pumps, MF Series 60 pumps |
1510 Series small bearings |
1510 & 1531 Series close-coupled 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 of Replacement |
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
-
EN118681LF – Ideal for older B&G 100 / HV / LD / HD / PD series or Armstrong equivalents.
-
EN186499LF – Best for 1535 Series, Series 90 Inline Pumps, and MF Series 60 pumps.
-
EN186862LF – Designed for 1510 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 the EN186499LF seal kit lead-free?
A: Yes, it is manufactured lead-free to meet modern safety standards.
Q2: Can I use this kit on both Bell & Gossett and Armstrong pumps?
A: Yes — it directly replaces B&G 186499LF and compatible Armstrong models.
Q3: How do I know if I need to replace my seal kit?
A: Signs include shaft leaks, unusual pump noise, reduced flow, or pressure loss.
Q4: Does the kit come with installation instructions?
A: Instructions are not included, but standard pump rebuild procedures apply. Service manuals for your pump model provide detailed installation steps.
Q5: What pumps does this seal kit fit?
A: Compatible with 1535 Series, Series 90 Inline Pumps, and MF Series 60 pumps, including bronze fitted and all-bronze models.
