Gas Walk Behind Mower — service parts and specifications. Also written 917389063.
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 | RJ19HX | … 32°F); SAE 5W-30 (below 32°F) Oil Capacity: 20 Ounces Spark Plug (Gap: .030") Champion RJ19HX Blade Bolt Torque: 35-40 ft. Ibs. • The model and … | 4 |
| Spark plug gap | .030 | Oil Type (API SG-SL): SAE 30 (above 32°F); SAE 5W-30 (below 32°F) Oil Capacity: 20 Ounces Spark Plug (Gap: .030") Champion RJ19HX Blade Bolt Torque … | 4 |
| Engine oil | SAE 30 | … Purchase: Gasoline Capacity / Type: 1.6 Quarts (Unleaded Regular) Oil Type (API SG-SL): SAE 30 (above 32°F); SAE 5W-30 (below 32°F) Oil Capacity … | 4 |
| Engine oil | SAE 5W-30 | Capacity / Type: 1.6 Quarts (Unleaded Regular) Oil Type (API SG-SL): SAE 30 (above 32°F); SAE 5W-30 (below 32°F) Oil Capacity: 20 Ounces Spark Plug … | 4 |
| Engine oil | 5W-30 | … / Type: 1.6 Quarts (Unleaded Regular) Oil Type (API SG-SL): SAE 30 (above 32°F); SAE 5W-30 (below 32°F) Oil Capacity: 20 Ounces Spark Plug (Gap … | 4 |
| Air filter | 795430 | … 796610 * Gasket=Float Bowl 25 797302 Piston Assembly (Standard) 163 795629 ,* Gasket=Air Cleaner 795430 Piston Assembly 187 791766 Line=Fuel (.020" … | 40 |
| Air filter | 491588s | … 425 690670 Screw (Air Cleaner Cover) 871 443 692523 Screw (Air Cleaner Primer Base) 445 491588s Filter-Air Cleaner Cartridge 455 791960 … | 41 |
| Air filter | 690700 | … 796136 Brake 692046 Cap-Fuel Tank 795259 Base-Air Cleaner Primer 692298 Cover-Air Cleaner 690700 Screw (Blower Housing Cover) 699374 Tank-Fuel … | 41 |