Gas Walk Behind Mower — service parts and specifications
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.
Reference data — no warranty, no fitment guarantee, used at your own risk. Disclaimer
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.
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.
| Item | Value | Context | Page |
|---|---|---|---|
| Spark plug | RC12YC | … IL 60179 Gross HP: 10.5 Engine Oil: SAE30 Fuel: Unleaded Gasoline Spark Plug: Champion® RC12YC Engine: Briggs& Stratton Power Built TM Model Number … | 2 |
| Spark plug gap | .030 | … tight. ENGINE MAINTENANCE Checking the Spark Plug Cleansparkplugandresettheelectrodegapto 0.030"at leastoncea season; replaceevery100 hoursof … | 14 |
| Engine oil | SAE30 | … state. Sears, Roebuck and Co., Hoffman Estates, IL 60179 Gross HP: 10.5 Engine Oil: SAE30 Fuel: Unleaded Gasoline Spark Plug: Champion® RC12YC … | 2 |
| Engine oil | 5W30 | … to yourexpectedoperatingtemperature, Figure13. Although multi-viscosityoils (5W30,10W30 etc.) improvestartingincold weather … | 15 |
| Engine oil | 10W30 | … aceiteseg Qnlatemperaturade operaci6 nesperada. Aunque losaceitesdeviscosidadm QItiple (5W30,10W30, etc.) mejoranel encendidocuandoel climaest … | 57 |
| Air filter | 698413 | … Terminal-Spark Plug 431 BS-697122 Elbow-Intake 864 BS-796002 Adapter-Muffler 445 BS-698413 Filter-Air Cleaner Cartridge 868 BS-690968 o+ Seal-Valve … | 37 |
| Air filter | 697292 | … Plate-Pawl Friction 914 BS-691108 Screw (Rocker Cover) 459 BS-281505s Paw I-Ratchet 967 BS-697292 Filter-Pre Cleaner 505 BS-691251 Nut (Governor … | 37 |
| Belt | 754-04136 | … 19 731-05766 Trailing Shield 58 i942-04154A Blade:17.9" 20 732-04409 Extension Spring i59 754-04136 Belt, Timing 21 732-04443A Extension Spring i60 … | 29 |
| Belt | 04139 | … Extension Spring i59 754-04136 Belt, Timing 21 732-04443A Extension Spring i60 i954-04139 Belt, V Type, Deck Engagement Belt 22 736-0105 Washer … | 29 |
| Belt | 954-04145A | … 4x 8 29 747-04678A Trans Mount Rod i68 i736-0242 Washer, Bell: .340"x .872"x .060" 30 954-04145A Belt, V Type, Drive Belt i69 710-0627 Screw … | 29 |
| Blade | 04154A | … Grip i57 738-04162A Spacer, Shoulder:.884"x .190" 19 731-05766 Trailing Shield 58 i942-04154A Blade:17.9" 20 732-04409 Extension Spring i59 … | 29 |
| Tire pressure | 20 | … of tire. REAR TIRE PRESSURE The recommendedoperatingreartire pressureisapproximately20 psi forthe reartires. Checkthe tire … | 18 |