🔥 100187881 LOCHINVAR K SPARK IGNITER ASSEMBLY w/ GASKET
🧭 Product Overview
The Lochinvar 100187881 Spark Igniter Assembly is a direct OEM replacement for select Lochinvar K water heaters. This assembly provides reliable spark ignition and consistent flame sensing to restore proper operation of your heater.
This replacement includes cover gasket and screw kit, ensuring a complete installation with a tight seal and secure mounting.
⚙️ Key Features
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⚡ OEM Replacement Part: Direct-fit design for Lochinvar K water heaters
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🔥 Reliable Spark Ignition: Consistent ignition for quick burner startup
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🧩 Complete Kit: Includes spark igniter, cover gasket, and mounting screws
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🧱 Gasket Included: Heat-resistant seal prevents leaks and improves safety
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🔩 Screw Kit Included: Ensures secure and proper installation
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🛠️ Durable Construction: High-quality thermoplastic housing and stainless steel electrode
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🧰 Easy Installation: Fits existing factory holes – no modification required
⚙️ Technical Specifications
| Specification | Details |
|---|
| Manufacturer |
Lochinvar |
| Part Number |
100187881 |
| Type |
Spark Igniter Assembly |
| Includes |
Spark igniter, cover gasket, mounting screws |
| Igniter Material |
High-temp thermoplastic housing, stainless steel electrode |
| Mounting |
Factory-aligned – no modification required |
| Certification |
OEM / UL Listed |
⚠️ Common Symptoms of a Faulty Igniter
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❌ No ignition — burner fails to light
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⚡ Continuous clicking — sparks but no flame
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🔥 Weak or intermittent spark — unstable ignition
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💡 Cracks, corrosion, or damage — igniter replacement needed
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🚫 Flame dropout — flame starts then shuts down
❓ Frequently Asked Questions (FAQ)
Q: Does this include the gasket and screws?
A: ✅ Yes, both cover gasket and mounting screws are included.
Q: Can I reuse my old gasket?
A: ❌ Always use the new gasket included to ensure a proper seal.
Q: What is the purpose of the gasket?
A: 🧱 Provides a tight, heat-resistant seal between the igniter and combustion area for safe and efficient operation.
Q: How do I know if my igniter needs replacing?
A: Look for ignition failure, intermittent sparks, visible cracks, or corrosion.
🛒 Shopping Tips
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✅ Verify your water heater model before ordering
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🧰 Always use the included gasket and screws for proper installation
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🔍 Check compatibility with Lochinvar K models
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⚙️ Ideal replacement if experiencing ignition failure or burner startup issues
