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Heat Range17
Hex Size13/16" (20.6mm)
Reach9.5mm (3/8")
SeatGasket seat
Thread Size14mm
TypeNon-Resistor, Standard

CLINTON Gas Engines: 412, 413, 492, 494, 497, 498, 499, 1200, A-1200, A-300, C-700, D-700, E-65, VS-300, V-100, VS-100, VS-900, VS-1000, V-1100, V-1200, V-1290 and VS-1200


TECUMSEH GAS ENGINES -- AV520, AV600, TVS600, HM70, 80, 85, 90, 100, HS40, 50, TVM195, 220, H50, 60, 70, 80


NGK 741, B4LM S25, B4LMS25N

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What does "Special Order" mean?

"Special Order" status means that this NGK B4LM (J17LM/J19LM) Spark Plug Shop Pack is not available in our local inventory and must be brought in from Stens. Once your order has been received, we expect this item to ship within 1-3 business days.

Unfortunately, backorders do occur. We will contact you as soon as we can if we find that this part is backordered. Please contact us at orders@rcpw.com or 330-468-2641 if you have a question about a part.