Briggs & Stratton 33R777 engine specs and maintenance
Small engine · Briggs & Stratton · used in 1 verified equipment variant · Last verified 2026-10-26
Scope: no stand-alone engine-maker spec document was used for this engine. Values come from the equipment maker's documents and apply to the machine named in each column (“as installed in”).
48 oz (1.4 L)Oil with filter
0.030 in (0.76 mm)Spark plug gap
Specifications
| Make | Briggs & Stratton[parts manual p.11] |
|---|---|
| Model | 33R777[parts manual p.11] |
| Spec number | Not yet verified |
Maintenance specs
| Oil type | SAE 30 (above 32°F/0°C); SAE 5W30 (below 32°F/0°C); API SJ-SN[manual p.4] |
|---|---|
| Oil capacity with filter | 48 oz (1.4 L)[manual p.4] |
| Oil capacity without filter | 44 oz (1.3 L)[manual p.4] |
| Spark plug gap | 0.030 in (0.76 mm)[manual p.4] |
| Spark plug torque | 180 lb-in[manual p.4] |
| Air filter interval | 100 hr[manual p.17] |
| Oil change interval | 50 hr[manual p.16] |
Service parts
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| Spark plug type | Champion XC92YC[manual p.4]Find this part: Briggs & Stratton Amazon Sears PartsDirect |
|---|
Equipment using this engine
- Husqvarna YTH18542 variant 96045005901 · Lawn tractor
Manuals and sources
- manualOM, Husqvarna, YTH18542, 96045005901, 2020-10 www.husqvarna.com · dated 2020-10-05 · retrieved 2026-10-26
- parts manualIPL, Husqvarna, YTH18542, 96045005901, 2020-09 www-static-nw.husqvarna.com · dated 2020-09-30 · retrieved 2026-10-26
Sources we could not obtain
- engine maker documents: No engine-maker manual or spec page was used for this engine.
Recalls
CPSC recalls for Briggs & Stratton 33R777
No CPSC recall found as of 2026-10-26. Search CPSC
A listed recall usually covers only the serial, spec or model numbers in the CPSC notice; check your machine. Try the recall lookup.
Other Briggs & Stratton engines
Last verified against source documents: 2026-10-26.