Gas Walk Behind Mower — service parts and specifications. Also written 917377880.
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 | RJ19LM | ELOW 32°F) 20 OZS. OIL TYPE (API-SF/SG/SH): OIL CAPACITY: SPARK PLUGIGAP: .030") CHAMPION RJ19LM or J19LM VALVE CLEARANCE: INTAKE: .004 - .008 … | 12 |
| Spark plug | J19LM | … OZS. OIL TYPE (API-SF/SG/SH): OIL CAPACITY: SPARK PLUGIGAP: .030") CHAMPION RJ19LM or J19LM VALVE CLEARANCE: INTAKE: .004 - .008 EXHAUST: .004 - … | 12 |
| Spark plug gap | .030 | SAE 30 (ABOVE 32°F) SAE 5W-30 IBELOW 32°F) 20 OZS. OIL TYPE (API-SF/SG/SH): OIL CAPACITY: SPARK PLUGIGAP: .030") CHAMPION RJ19LM or J19LM VALVE … | 12 |
| Engine oil | SAE 30 | ATIONS SERIAL NUMBER DATE OF PURCHASE GASOLINE CAPACITY/TYPE: 1.6 QUARTS JNLEADED REGULAR SAE 30 (ABOVE 32°F) SAE 5W-30 IBELOW 32°F) 20 OZS. OIL TYPE … | 12 |
| Engine oil | SAE 5W-30 | DATE OF PURCHASE GASOLINE CAPACITY/TYPE: 1.6 QUARTS JNLEADED REGULAR SAE 30 (ABOVE 32°F) SAE 5W-30 IBELOW 32°F) 20 OZS. OIL TYPE (API-SF/SG/SH): OIL … | 12 |
| Engine oil | 5W-30 | E OF PURCHASE GASOLINE CAPACITY/TYPE: 1.6 QUARTS JNLEADED REGULAR SAE 30 (ABOVE 32°F) SAE 5W-30 IBELOW 32°F) 20 OZS. OIL TYPE (API-SF/SG/SH): OIL … | 12 |
| Air filter | 692673 | … Rewind Guard Ratchet Pawl 957 498697 Fue ITank Cap Nut (Governor Control Lever) 966 692673 Air Cleaner Pdmer Base Dipstick 968 281340 Air Cleaner … | 28 |
| Air filter | 281340 | Fue ITank Cap Nut (Governor Control Lever) 966 692673 Air Cleaner Pdmer Base Dipstick 968 281340 Air Cleaner Cover -A-Dipstick Tube Seal 972 499618 … | 28 |