OrphanSpecStraight answers for orphaned outdoor equipment

Craftsman 917.287140

Front Engine Lawn Tractor — service parts and specifications. Also written 917287140.

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.6, 39
Spark plug gap
.030 p.6
Engine oil
5W30 (cold) · SAE 30 (above) · 10W30 (cold) p.21, 39
Oil capacity
56 oz p.6

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.

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.

Oil capacity — Refill amount after draining. Always verify on the dipstick; a slight overfill can foul the plug.

All values found, with sources

ItemValueContextPage
Spark plugRC12YCAE 5W-30 (below 32°F) Oil Capacity: W/Filter 56 oz. W/O Filter 48 oz. Spark Plug: Champion RC12YC (Gap: .030") Ground Speed Forward: 0-5.5 Reverse …6
Spark plug gap.030… (API-SG-SL): SAE 5W-30 (below 32°F) Oil Capacity: W/Filter 56 oz. W/O Filter 48 oz. Spark Plug: Champion RC12YC (Gap: .030") Ground Speed Forward …6
Engine oil5W30ANTICIPATED BEFORE NEXT OIL CHANGE oil visc chartle NOTE: Although multi-viscosity oils (5W30, 10W30 etc.) improve starting in cold weather, they …21
Engine oilSAE 30PRODUCT SPECiFiCATiONS Gasoline Capacity 1.50 and Type: Unleaded Regular Oil Type SAE 30 (above 32°F) (API-SG-SL): SAE 5W-30 (below 32°F) Oil …6
Engine oil10W30IPATED BEFORE NEXT OIL CHANGE oil visc chartle NOTE: Although multi-viscosity oils (5W30, 10W30 etc.) improve starting in cold weather, they will …21
Oil capacity56 oz… Type: Unleaded Regular Oil Type SAE 30 (above 32°F) (API-SG-SL): SAE 5W-30 (below 32°F) Oil Capacity: W/Filter 56 oz. W/O Filter 48 oz. Spark Plug …6

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