OrphanSpecStraight answers for orphaned outdoor equipment

Companion 917.278121

Front Engine Lawn Tractor — service parts and specifications. Also written 917278121.

Read this before you order anything. These figures are transcribed automatically from manufacturer manuals and can be wrong. Nothing here is a fitment guarantee or professional advice.

Provided free, as is, with no warranty and no liability accepted — you use it at your own risk and on your own responsibility. Check every number against the plate on your own machine before you buy or fit a part.

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Reference data — no warranty, no fitment guarantee, used at your own risk. Disclaimer

Engine oil
SAE 30 (below) · 5W-30 (below) · SAE 5W-30 (below) p.46
Tire pressure
14 · 12 p.47

Transcribed from the manufacturer manual — not a fitment guarantee. Manufacturers supersede part numbers during a production run: check these against the plate on your own machine before ordering.

Note: some values below appear more than once in the manual without a clear label. This usually means the model changed across production years. Check your serial number plate before ordering.

What these parts do

Engine oil — Grade depends on operating temperature, not on the machine. Several grades listed below are all correct — pick by season.

All values found, with sources

ItemValueContextPage
Engine oilSAE 30… level should lie between the two markings on the oil stick. If more oil is needed add SAE 30 oil to the =FULL" marking. SAE 5W-30 oil should be …46
Engine oil5W-30… on the oil stick. If more oil is needed add SAE 30 oil to the =FULL" marking. SAE 5W-30 oil should be used during the winter (below freezing …46
Engine oilSAE 5W-30… markings on the oil stick. If more oil is needed add SAE 30 oil to the =FULL" marking. SAE 5W-30 oil should be used during the winter (below …46
Tire pressure14… Check the tire pressure regularly. The pressure in the front tires should be 1 bar (14 PSI) and 0.8 bar (12 PSI) in the back tires. _) Reifendruck …47
Tire pressure12… regularly. The pressure in the front tires should be 1 bar (14 PSI) and 0.8 bar (12 PSI) in the back tires. _) Reifendruck Den Luftdruckin den …47

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