Set of Four New Spark Plugs for Cletrac HG's running the four cylinder Hercules IXA (1939) and IXK (1940 to Jan. 1950) engines.

Specifications:
7/8th in. thread using 15/16th wrench.

Note 1: Also applicable to other machines with same engine: Cletrac 'GG' General, Minneapolis Moline 'BF', Avery 'Model A', Wards 'Twin Row' etc.
Note 2: I have separate listings for Hercules IXB and Hercules GO130 spark plugs for later HG's (Feb. 1950 onwards), all OC-3's and all OC-4's.

Check out my eBay store, see link top right.

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I specialize in Oliver & Cletrac Crawlers & Parts for HGs, OC-3s & OC-4s from the 30's to the 60's, plus OC-6 and other Oliver and Cletrac parts from time-to-time...

See OliverCrawlers for lots of useful information on these wonderful machines of yesteryear or message me with any questions.

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Important notes about shipping:

Shipping within the US from NY 13640 — Shipping within Canada* from Ontario K7M 1E3. NO Customs Fees, NO Duties, NO Taxes!

*GST or HST is Payable within Canada (depending on Province)
For shipping within Canada, ask me for a domestic Canada Post, CanPar or FedEx Ground quote before you buy.

I use USPS because I've found it is consistently the cheapest up to about 30lbs, and flat-rate whenever possible.
From 30—70lbs FedEx Ground is the cheapest to a residence. If you have or can use a business address, I can use FedEx Ground up to 150lbs!

For shipments over 150lbs, I use various freight carriers — all out of Syracuse, NY 13211. Ask me for a quote.

I always combine shipping to save you $$$$'s. If you overpay due to eBay's checkout, I'll refund.

Worldwide shipping is available on just about everything I sell!