PTB4LM NGK Spark Plug – 10mm Lawn & Garden Plug for Briggs & Stratton, Tecumseh & Snapper – NGK 8041
PTB4LM NGK Spark Plug – 10mm Lawn & Garden Plug for Briggs & Stratton, Tecumseh & Snapper – NGK 8041 is backordered and will ship as soon as it is back in stock.
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- Express delivery - £6.99 on eligible UK mainland orders placed before 2pm.
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PTB4LM NGK Spark Plug – 10mm Lawn & Garden Plug for Briggs &...
PTB4LM NGK Spark Plug – 10mm Lawn & Garden Plug for Briggs & Stratton, Tecumseh & Snapper – NGK 8041 is backordered and will ship as soon as it is back in stock.
Ensure reliable starting in your lawnmower and small engine equipment with the NGK PTB4LM spark plug – the OE-style replacement for Briggs & Stratton, Tecumseh, Snapper, Toro, and Murray walk-behind mowers . Features a 98% pure copper core for superior heat dissipation, 10K Ohm resistor for EMI suppression, and cold-rolled threads to prevent cylinder head damage .
Precision 10mm micro-thread design with 12.7mm (1/2") reach and 0.7mm (0.028") pre-set gap .
Vehicle Fitment:
| Equipment Type | Manufacturer / Models |
|---|---|
| Walk-Behind Mowers | Briggs & Stratton, Tecumseh, Snapper, Toro, Murray |
| Lawn & Garden | Standard 10mm small engine applications |
| Outdoor Power | Various OPE applications requiring 10mm thread |
Always verify fitment using your equipment's model and engine code before ordering.
Product Specifications:
| Specification | Details |
|---|---|
| NGK Part Number | PTB4LM |
| NGK Stock Number | 8041 |
| Type | Resistor Spark Plug |
| Thread Size | 10mm x 1.0mm |
| Thread Reach | 12.7mm (1/2") |
| Hex Size | 16mm (5/8") |
| Seat Type | Flat / Gasket |
| Spark Gap | 0.7mm (0.028") |
| Resistor Value | 10K Ohm |
| Center Core | 98% Pure Copper |
| Center Electrode | Nickel, non-projected |
| Ground Electrode | Nickel, single |
| Terminal Type | Removable Nut (SAE) |
| Heat Range | 4 |
| Condition | Genuine NGK New |
OEM & Aftermarket Cross-References:
| Brand | Part Numbers |
|---|---|
| NGK | PTB4LM (8041) |
| Briggs & Stratton | 697138, 697451, 796608S, 796608T, 792650, 792650S, 792951 |
| Champion | RC12YC (cross-reference for some applications) |
| Tecumseh | 34566, 37085 |
Why Choose NGK PTB4LM?
-
10mm micro-thread – Precision fit for compact lawn mower engines
-
98% pure copper core – Superior heat dissipation, reliable starts, reduced overheating
-
10K Ohm resistor – Suppresses EMI for sensitive electronics
-
Nickel-alloy electrodes – Consistent wear, extended service life
-
Cold-rolled threads – Prevents cross-threading and cylinder head damage
-
Trivalent metal plating – Corrosion resistant; no anti-seize required
-
Removable terminal nut – Universal fitment for various plug cap styles
Torque: 12–12.7 ft-lb (17.2 Nm) – 16mm hex adaptor required for 10mm plug.
Trust the original. Trust NGK.
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