Gas Walk Behind Mower — service parts and specifications. Also written 917377812.
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.
| Item | Value | Context | Page |
|---|---|---|---|
| Spark plug | RJ19LM | … 32°F); SAE 5W-30 (below 32°F) Oil Capacity: 20 Ounces Spark Plug (Gap: .030") Champion RJ19LM or J19LM Blade Bolt Torque: 35-40 ft. Ibs. The model … | 12 |
| Spark plug | J19LM | SAE 5W-30 (below 32°F) Oil Capacity: 20 Ounces Spark Plug (Gap: .030") Champion RJ19LM or J19LM Blade Bolt Torque: 35-40 ft. Ibs. The model and … | 12 |
| Spark plug gap | .030 | Oil Type (API-SF-SJ): SAE 30 (above 32°F); SAE 5W-30 (below 32°F) Oil Capacity: 20 Ounces Spark Plug (Gap: .030") Champion RJ19LM or J19LM Blade Bolt … | 12 |
| Engine oil | SAE 30 | … Purchase: Gasoline Capacity / Type: 1.5 Quarts (unleaded regular) Oil Type (API-SF-SJ): SAE 30 (above 32°F); SAE 5W-30 (below 32°F) Oil Capacity … | 12 |
| Engine oil | SAE 5W-30 | Capacity / Type: 1.5 Quarts (unleaded regular) Oil Type (API-SF-SJ): SAE 30 (above 32°F); SAE 5W-30 (below 32°F) Oil Capacity: 20 Ounces Spark Plug … | 12 |
| Engine oil | 5W-30 | … / Type: 1.5 Quarts (unleaded regular) Oil Type (API-SF-SJ): SAE 30 (above 32°F); SAE 5W-30 (below 32°F) Oil Capacity: 20 Ounces Spark Plug (Gap … | 12 |
| Air filter | 36919 | … Intake Pipe Gasket 238 650932 Screw, #10-32 x 49/64" 239 34338 * Air Cleaner Gasket 241 36919 Air Cleaner Collar 245 36g05 Air Cleaner Filter 250 … | 41 |
| Air filter | 37122 | … 34338 * Air Cleaner Gasket 241 36919 Air Cleaner Collar 245 36g05 Air Cleaner Filter 250 37122 Air Cleaner Cover 260 36980A Blower Housing 261 … | 41 |
| Belt | 67725 | … Screw 27 52160 Drive Cable 28 12000058 Cover Drive 29 180504 Screw Thdro110-25 x .50 30 67725 V-Belt 31 57143 Nut Lock Flanged 3/8-16 Zinc 32 … | 39 |