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Craftsman 917.271531

Front Engine Lawn Tractor — service parts and specifications. Also written 917271531.

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
Spark plug gap
.030 p.6
Engine oil
10W30 (cold) · SAE 30 (above) · SAE 5W-30 (above) p.17, 19
Air filter
499288 · 272403 (element) p.53
Belt
74780616 · 160855 (drive) p.35
Blade
134149 (mulching) p.47
Tire pressure
14 · 12 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.

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.

Air filter — Check every 25 hours, more often in dusty conditions. A clogged filter shows up as black smoke and power loss.

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

Blade — Sharpen or replace at the start of each season. Always balance a sharpened blade before refitting.

All values found, with sources

ItemValueContextPage
Spark plugRC12YCREGULAR ) ILTYPE SAE 30 (ABOVE 32_F) API-SF-SJ): SAE 5W-30 (Below 32°F) 3.0 PINTS CHAMPION RC12YC FORWARD: 1ST 1.1 2ND 1.4 3RD 2.2 4TH 3.4 5TH 4.3 …6
Spark plug gap.030Y: AMP/HR: 25 MIN. CCA: 190 CASE SIZE: Ut R BLADE BOLT 27-35 FT. LBS TORQUE: OIL CAPACITY: SPARK PLUG: GAP: .030") GROUND SPEED (MPH) …6
Engine oil10W30Wheal ,. Bearing q" 1 l I_ _ Spindle ront Wheel _"------"'- i Bearing Zerk Engine C_SAEOR 10W30 MOTOR OIL _) REFERTO MAINTENANCE"ENGINE" SECTION …17
Engine oilSAE 30PRODUCT SPECIFICATIONS 3ASOLINE 1.25 GALLONS CAPACITY UNLEADED _NDTYPE: REGULAR ) ILTYPE SAE 30 (ABOVE 32_F) API-SF-SJ): SAE 5W-30 (Below 32°F) 3.0 …6
Engine oilSAE 5W-30NE 1.25 GALLONS CAPACITY UNLEADED _NDTYPE: REGULAR ) ILTYPE SAE 30 (ABOVE 32_F) API-SF-SJ): SAE 5W-30 (Below 32°F) 3.0 PINTS CHAMPION RC12YC FORWARD …6
Air filter499288… 171 281051 Nut (Air Cleaner) 25 499284 Piston Assembly (Std.) 176 261106 • Gasket, Air Cleaner 499288 Piston Assembly (.010 177 270920 * Sea …53
Air filter272403… 525 496113 Dips6ck Tube 947 497672 Solenoid-Fuel 535 496894 Filter, NC Element 967 272403 Filter-pre Cleaner 544 497603 Armature-Starter 968 281758 …54
Belt74780616… 73510500 Nu Keps 5116-18 unc 159639X558 Hood Pnt Steel Private Label 126938X Bumper Hood 74780616 Belt Fin Hex 3/8-16 Uncx 1Gr, 5 19131312 Washer …35
Belt160855Zinc 56 s'rD523712 Bolt Fin Hex 3/8-16 unc x 1-1/4 10 STD561210 Pin Cotter 1/B x 1 Cad 57 160855 V-Belt Gd Drive 11 tO5701X Washer Plate Shf 388 Sq …37
Blade134149… 8 54 133943 9 S]_551137 Washer, Lock 55 155046 t0 140296 Washer, Hardened 56 165723 11 134149 Blade, Mulching 59 141043 13 137645 Shelf Assembly …47
Tire pressure14N RC12YC FORWARD: 1ST 1.1 2ND 1.4 3RD 2.2 4TH 3.4 5TH 4.3 6TH 5.5 REVERSE: 1.7 nRE FRONT: 14 PSI PRESSURE: REAR: 12 PSI CHARGING 3 AMPS BATTERY …6
Tire pressure12… 2ND 1.4 3RD 2.2 4TH 3.4 5TH 4.3 6TH 5.5 REVERSE: 1.7 nRE FRONT: 14 PSI PRESSURE: REAR: 12 PSI CHARGING 3 AMPS BATTERY SYSTEM: 5 AMPB HEADLIGHTS …6

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