NEW PARTS

Many parts are available either as "new-old" original stock or as modern reproductions. Let me know if originality is desired — I do have a stock of new-old original parts or excellent used parts.

      ENGINE PARTS
      Hercules IX-series
 

When we talk of Cletrac to Oliver HG's, OC-3's & OC-4's we are really talking about two engines and their variants: four cylinder Hercules IX-series gasoline engines; and three cylinder Hercules GO/DD130-series engines and their variants (see next page).

 

Cletrac HG's began life in 1939 with the 3 in. bore Hercules IXA-3 engine, succeeded by the 3-1/8th in. bore Hercules IXK-3 in 1940 (both with thermosiphon cooling).
In Feb. 1950, the 3-1/4 in. bore Hercules IXB-3 was introduced, coinciding with the dropping of the name 'Cletrac' from the HG's decals. This engine was equipped with a water pump for greater cooling capacity.

Important note: IX-series engines before serial number 1285103 were equipped with babbited bearings. They are expensive to renew and cannot be replaced with modern insert bearings.

Oliver OC-3's were all equipped with the same 4 cylinder, 3-1/4 in. Hercules IXB-3's as used in late Oliver HG's. Note though that re-engined machines may house variants of the IXB-3 engine - read your tag and the stamp on the side of the block under the cylinder head. For example, 'SL' means it has sleeves, 'LB' means long bore (longer stroke).

Tip: When you email, text or call with questions or enquiries about engine parts, tell me your machine and/or engine model and serial number.

Full Engine Gasket Set
Full Engine Gasket Set

Our full engine gasket kits include a head gasket and front/rear engine seals — beware of cheap imitations.

IX-series Engine Plate
IX-series Engine Plate

Make a note of your Hercules engine model and serial number

IX-series Serial/Model Stamp
IX-series Serial/Model Stamp

You'll often find this stamp on the engine block side just below the cylinder head. A date is also cast into the block behind the magneto.

Hercules IX-series Pistons
Hercules IX-series Pistons

Available in Standard, 0.020, 0.030, 0.040 and 0.060 oversizes for IXA, IXK and IXB engines.

Hercules IX Piston Rings Set
Hercules IX Piston Rings Set

We have various IXK & IXB sizes in stock.

IX-series Main Bearings
IX-series Main Bearings

Insert-type main bearings for IXB-3 and IXK-3 engines above serial number 1285102 — in standard, 0.010, 0.020, 0.030 & 0.040 undersizes.

IX-series Rod Bearings
IX-series Rod Bearings

Insert-type rod bearings for IXB-3 and IXK-3 engines above serial number 1285102 — in standard, 0.010, 0.020, 0.030 & 0.040 undersizes.

IX-series & GO/DD130-seriesEngine Seals
IX-series & GO/DD130-seriesEngine Seals
HerculesIXSeriesValveParts
HerculesIXSeriesValveParts
IXB Spark Plugs
IXB Spark Plugs
IX-series Oil Filter
IX-series Oil Filter
IX-series Oil Filter
IX-series Oil Filter
Oil Filter Tubes
Oil Filter Tubes

This essential part is often missing or broken.