Gas Walk Behind Mower — service parts and specifications. Also written 917389011.
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.
| Item | Value | Context | Page |
|---|---|---|---|
| Spark plug | J19LM | Quarts (Unleaded Regular) SAE 30 (above 32°F); SAE 5W-30 (below 32°F) 20 Ounces Champion J19LM or RJ19LM 35-40 ft. Ibs. 4 | 4 |
| Spark plug | RJ19LM | Unleaded Regular) SAE 30 (above 32°F); SAE 5W-30 (below 32°F) 20 Ounces Champion J19LM or RJ19LM 35-40 ft. Ibs. 4 | 4 |
| Spark plug gap | .030 | … Number: Date of Purchase: Gasoline Capacity / Type: Oil Type (API SG-SL): Oil Capacity: Spark Plug (Gap: .030") Blade Bolt Torque: • The model and … | 4 |
| Engine oil | SAE 30 | … number and date of purchase in space provided above. 1.6 Quarts (Unleaded Regular) SAE 30 (above 32°F); SAE 5W-30 (below 32°F) 20 Ounces Champion … | 4 |
| Engine oil | SAE 5W-30 | … of purchase in space provided above. 1.6 Quarts (Unleaded Regular) SAE 30 (above 32°F); SAE 5W-30 (below 32°F) 20 Ounces Champion J19LM or RJ19LM … | 4 |
| Engine oil | 5W-30 | … in space provided above. 1.6 Quarts (Unleaded Regular) SAE 30 (above 32°F); SAE 5W-30 (below 32°F) 20 Ounces Champion J19LM or RJ19LM 35-40 ft … | 4 |
| Air filter | 691031 | … Float-Carburetor 398188 * Kit-Needle/Seat 693981 * Gasket-Float Bowl 795629 ** Gasket-Air Cleaner 691031 • Sea I-O Ring (Dipstick) 791766 Line-Fuel … | 40 |
| Air filter | 491588s | … 425 690670 Screw (Air Cleaner Cover) 443 692523 Screw (Air Cleaner Primer Base) 445 491588s Filter-Air Cleaner Cartridge 455 791960 Cup-Flywheel … | 41 |
| Air filter | 690700 | … 796136 Brake 692046 Cap-Fuel Tank 795259 Base-Air Cleaner Primer 692298 Cover-Air Cleaner 690700 Screw (Blower Cover) 699374 Tank-Fuel 493640 … | 41 |