John Deere parts for engines are provided for all major models, including the six (6) cylinders, and four (4) cylinder engines, for tractors, combines, harvesters, marine, excavators, wheel loaders, skid steers and other construction equipment.
John Deere Parts for engines needs to be identified as either for a non PowerTech engine or a PowerTech engine. This identification can best be done on the engine identification tag:- the engine is labeled as PowerTech.
Alternatively, an analysis of the serial numbers of the engines can determine is the engine is PowerTech or non-PowerTech. All John Deere engines manufactured in Torreon, Mexico, are PowerTech engines. The others have serial number breaks that determine this.
This factor is significant, as a 4045 engine can be either PowerTech or a normally aspirated non-PowerTech engine. Replacement parts for both can be significantly different, as both engines were designed for different applications and to different standards.
Engine parts can be either in the engine itself, or accessories to the engine, fitted to the external body of the engine.
John Deere Engine parts for overhaul kits are typically sold with pistons, piston pins, piston pin retainers, rings, liners (cylinders of sleeves), o ring kit, main bearings, connecting rod bearings, connecting rod bushings and bolts, rear crankshaft seal, front crankshaft seal, and thrust washers. The complete gasket overhaul set includes the head gasket set, lower oil pan set, and other gaskets for water pump, oil pump, hydraulic pumps, injector grommets, and exhaust manifold gaskets.
The external engine accessories can include the injectors, new, rebuilt or good used, crankshafts, oil pump, tachometer cable, exhaust manifold, timing chain gear, flywheel, ring gear, fuel lift pump, carb kit, gauges, sending units and sensors, and valve train kits.
Valve train kits includes exhaust valves, intake valves, valve seals, valve springs, valve intake guide, valve exhaust guide, and lock valves.
Some of the early John Deere engines were built for gas, as in the early tractors. Gas engine parts are sold aftermarket, as well as John Deere diesel engine parts.
Camshaft, rocker shafts, tappets, and rocker arm bolts are provided aftermarket. Connecting rods are sold new aftermarket, rebuilt, or good used.
Cylinder heads, glow plugs, cylinder blocks, short block, long block, short block, crankshaft gears, alternators, starters, fan belts, water pumps, and water pump kits are readily sold as aftermarket.
These engines are now manufactured in accordance with Tier 11 and Tier 111 EPA emissions standards. These are standards that were introduced gradually by the US EPA to reduce emissions/pollution from diesel combustion engines.
The choice of the correct replacement John Deere Parts for engines will depend on the information provided by the machine/engine owner. As a rule, the machine/engine serial number is not sufficient to select engine parts. John Deere engines are renowned for requiring the casting number that is embedded onto engine components. These include the piston, connecting rod, crankshaft, cylinder head, cylinder block, and water pump housings.
Notwithstanding the above, the machine serial number and the engine serial number are added pieces of information that are needed for correct component replacement.