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Craftsman 917.279901

Front Engine Lawn Tractor — service parts and specifications. Also written 917279901.

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

Spark plug
RC12YC p.4
Spark plug gap
.040 p.4
Engine oil
SAE 30 (above) · SAE 5W-30 (above) · 5W-30 (above) p.4
Belt
169612 (drive) p.35
Tire pressure
14 · 10 p.4

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

Spark plug — Replace annually or every 100 operating hours. Cross-reference equivalents from other brands usually fit.

Spark plug gap — Set with a feeler gauge before installing. A wrong gap causes hard starting and rough running.

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

Belt — Belts are consumables. Length and width must match exactly — a belt that is half an inch off will throw or burn.

All values found, with sources

ItemValueContextPage
Spark plugRC12YC… (below 32°F) OIL CAPACITY: W/FILTER 4.0 PINTS W/OFILTER 3.75 PINTS SPARK PLUG: CHAMPION RC12YC (GAP: .040") GROUND SPEED (MPH): Forward: 0-5.5 …4
Spark plug gap.040… 32°F) SAE 5W-30 (below 32°F) OIL CAPACITY: W/FILTER 4.0 PINTS W/OFILTER 3.75 PINTS SPARK PLUG: CHAMPION RC12YC (GAP: .040") GROUND SPEED (MPH) …4
Engine oilSAE 30CIFICATIONS GASOLINE CAPACITY 2.0 GALLONS AND TYPE: UNLEADED REGULAR OILTYPE (API-SF-SJ): SAE 30 (above 32°F) SAE 5W-30 (below 32°F) OIL CAPACITY …4
Engine oilSAE 5W-30CAPACITY 2.0 GALLONS AND TYPE: UNLEADED REGULAR OILTYPE (API-SF-SJ): SAE 30 (above 32°F) SAE 5W-30 (below 32°F) OIL CAPACITY: W/FILTER 4.0 PINTS …4
Engine oil5W-30ACITY 2.0 GALLONS AND TYPE: UNLEADED REGULAR OILTYPE (API-SF-SJ): SAE 30 (above 32°F) SAE 5W-30 (below 32°F) OIL CAPACITY: W/FILTER 4.0 PINTS …4
Belt169612… Link, Clutch 197 169613 Spring, Return, Clutch 198 169593 Screw 3/8-16 x 1-1/4 199 169612 V-Belt, Ground Drive 200 72140508 Keeper, Center Span 202 …35
Tire pressure14C12YC (GAP: .040") GROUND SPEED (MPH): Forward: 0-5.5 Reverse 0-2.4 TIRE PRESSURE: FRONT: 14 PSI REAR: 10 PSI CHARGING SYSTEM: 3 AMPS BATTERY 5 AMPS …4
Tire pressure10… GROUND SPEED (MPH): Forward: 0-5.5 Reverse 0-2.4 TIRE PRESSURE: FRONT: 14 PSI REAR: 10 PSI CHARGING SYSTEM: 3 AMPS BATTERY 5 AMPS HEADLIGHTS …4

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