2 Genuine NGK 7421 BMR6A Spark Plugs
Item Specifics
NGK OEM Spark Plug Kit
Part Number: 7421 BMR6A
Quantity: 2 Plugs
Replaces: NGK 5921 BM6A
This 2-pack of genuine NGK 7421 BMR6A spark plugs delivers dependable ignition performance and long service life for a wide range of small engines. Featuring premium construction with copper core and trivalent plating.
Technical Specifications
| Specification | Value |
|---|---|
| Thread Diameter | 14 mm |
| Thread Pitch | 1.25 mm |
| Reach | 9.5 mm (3/8″) |
| Hex Size | 3/4″ (19 mm) |
| Gap | 0.028″ |
| Electrode Material | Nickel |
| Core Material | High-Conductivity Copper |
| Plating | Trivalent Metal (Anti-corrosion/Anti-seizing) |
| Sealing | Triple-Sealed (Prevents combustion gas leakage) |
Compatible Engine & Equipment
| Component | Model / Type |
|---|---|
| Spark Plug Type | Standard Resistor Spark Plug |
| Primary Application | Small Engines (Lawn & Garden, Power Equipment) |
Key Details
- Direct Replacement: Cross-references to and replaces NGK part number 5921 BM6A.
- Premium Construction: Copper core and triple-seal design for efficient heat removal and leak prevention.
- Corrosion Resistant: Trivalent metal plating provides superior anti-seizing and anti-corrosion protection.
We at Red Rock Turf are a stocking distributor for Briggs and Stratton, Kohler, Toro dealer. We not only sell their OEM parts but we also use them on our equipment repairs and rebuilds. If there is something you need and don’t see it on one of our auctions, please email me through [email protected] and I can get it in and create an auction for that item.
We also ship internationally!
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