Spark Plug for Jonsered HP36 Power Pruner chainsaw & More - Autolite 2974

$13.99

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Part number: 2974

UPC: 009100003850

Condition: New

Weight: 0.10 LBS

Item Package Quantity: 1

$13.99

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Autolite Spark Plug P/N:2974

$13.99

Description

The Autolite 2974 spark plug for the Jonsered HP36 Power Pruner chainsaw and other equipment fires the air-fuel mixture in the engine's cylinder to start the engine and keep it running.

Part of the Autolite copper spark plugs line, built for quick starts and the power your equipment needs
Copper core center electrode aids thermal control and improves resistance to fouling
Nickel center electrode tip and nickel ground electrode, specially engineered for extended life
High alumina multi-rib ceramic insulator carries heat away, insulates well and adds strength
Nickel-plated shell resists corrosion for added durability

Hard starting, misfires or a loss of power can mean the spark plug is worn or fouled. Those signs alone don't prove the spark plug is at fault, because a clogged air filter can bring them on too.

The equipment it fits includes the Wacker BTS12, BTS13, BTS14 and the Wacker BTS9, BTS10, BTS11, and each of these takes one spark plug. If your machine isn't named here, look it up in the "Vehicles it fits" section.

Specifications

Fit and size

Thread size: M14 - 1.25 (metric)
Thread diameter: 14 mm
Reach: 9 mm (0.374 in)
Hex size: 3/4 in
Seat type: Flat
Terminal: Removable Nut

Build and materials

Heat range: 11 (Autolite)
Center electrode: copper core, nickel tip, Mid Projection
Ground electrode: 1, nickel core and tip
Resistor type: non-resistor
Insulator: ceramic
Warranty: Autolite 2-year limited warranty
Country of origin: China

In the box: the spark plug with its flat washer.

Product information is for general reference and may contain errors. See our Disclaimer.

Manufacturer's description

Product specs

Vehicles it fits

Interchange numbers

Buyer's Q&A

Frequently Asked Questions

Will the Autolite 2974 fit my Wacker BTS9, BTS10, BTS11?

Yes, the Autolite 2974 spark plug fits the Wacker BTS9, BTS10, BTS11 and the Wacker BTS12, BTS13, BTS14, one spark plug each. Other machines it fits are in the "Vehicles it fits" section.

Does this Autolite spark plug come with a washer?

Yes. This spark plug comes with a flat washer to match its flat seat.

What thread and reach does the 2974 spark plug have?

This spark plug has an M14 - 1.25 metric thread, a 9 mm (0.374 in) reach and a 3/4 in hex.

Is the Autolite 25 spark plug the same part as this one?

No. This listing is the Autolite 2974 copper spark plug, a different part number from the Autolite 25, with heat range 11 and an M14 - 1.25 thread.

What does the copper core in this spark plug's center electrode do?

The copper core helps this spark plug control heat at the center electrode and makes it more resistant to fouling.