Predator 3500 Super Quiet Inverter specs
Inverter generator · Predator · 2 variants · Last verified 2026-10-25
Specifications
Each value links to the manufacturer document and page it came from. “Not yet verified” means we hold a reading that has not passed our checks, so we do not show it. A dash means the sources we used do not publish it.
Swipe the tables sideways to see all 2 variants.
Power output
| Spec | 71358Predator 3500 Super Quiet Inverter (71358) | 59137Predator 3500 Super Quiet Inverter (59137) |
|---|---|---|
| Running watts, gasoline | 3000 W[manual p.2] | 3000 W[manual p.2] |
| Starting watts, gasoline | 3500 W[manual p.2] | 3500 W[manual p.2] |
Fuel and runtime
| Spec | 71358Predator 3500 Super Quiet Inverter (71358) | 59137Predator 3500 Super Quiet Inverter (59137) |
|---|---|---|
| Runtime at 25% load, gasoline | 11 hr[manual p.2] | 11 hr[manual p.2] |
| Fuel tank capacity | 2.64 gal[manual p.2] | 2.64 gal[manual p.2] |
Outlets
| Spec | 71358Predator 3500 Super Quiet Inverter (71358) | 59137Predator 3500 Super Quiet Inverter (59137) |
|---|---|---|
| AC outlets | 2 x NEMA #5-20 (3-prong, 120 VAC) 1 x NEMA #L5-30 (3-prong, 120 VAC)[manual p.2] | 2 x NEMA #5-20 (3-prong, 120 VAC) 1 x NEMA #L5-30 (3-prong, 120 VAC)[manual p.2] |
Engine
| Spec | 71358Predator 3500 Super Quiet Inverter (71358) | 59137Predator 3500 Super Quiet Inverter (59137) |
|---|---|---|
| Displacement | 212 cc[manual p.2] | 212 cc[manual p.2] |
| Air filter type | — | foam[manual p.11] |
Noise (as published)
| Spec | 71358Predator 3500 Super Quiet Inverter (71358) | 59137Predator 3500 Super Quiet Inverter (59137) |
|---|---|---|
| Noise, 25% load | 56 dB(A)[manual p.2] | 56 dB(A)[manual p.2] |
Features and safety
| Spec | 71358Predator 3500 Super Quiet Inverter (71358) | 59137Predator 3500 Super Quiet Inverter (59137) |
|---|---|---|
| Parallel capable | Yes[manual p.9] | Yes[manual p.9] |
| CO safety shutoff | Yes[manual p.4] | Yes[manual p.4] |
Emissions
| Spec | 71358Predator 3500 Super Quiet Inverter (71358) | 59137Predator 3500 Super Quiet Inverter (59137) |
|---|---|---|
| EPA compliant | Yes[manual p.2] | Yes[manual p.2] |
Variants
Each SKU, model number, deck option and serial-range revision is its own variant. Values are never merged across variants.
71358
Predator 3500 Super Quiet Inverter (71358)
- Fuel types
- gasoline
- Engine
- Engine model not published by the maker
- Why no engine link
- The manufacturer's documents do not name an engine model, so no engine record is linked (engine fields stay on the generator record).
59137
Predator 3500 Super Quiet Inverter (59137)
- Fuel types
- gasoline
- Engine
- Engine model not published by the maker
- Why no engine link
- The manufacturer's documents do not name an engine model, so no engine record is linked (engine fields stay on the generator record).
Maintenance specs and parts
Oil and service specs
| Spec | 71358Predator 3500 Super Quiet Inverter (71358) | 59137Predator 3500 Super Quiet Inverter (59137) |
|---|---|---|
| Engine oil capacity | 20 fl oz[manual p.2] | 20 fl oz[manual p.2] |
| Engine oil type | 10W-30[manual p.2] | 10W-30[manual p.2] |
| Spark plug gap | 0.027-0.031 in.[manual p.2] | 0.027-0.031 in.[manual p.2] |
| Valve clearance | IN 0.002-0.003 / EX 0.002-0.003 in.[manual p.2] | IN 0.002-0.003 / EX 0.002-0.003 in.[manual p.2] |
Part numbers
“Find this part” links are plain searches at the manufacturer or a parts retailer; we earn nothing from them (disclosure). Confirm against your serial number before ordering.
| Spec | 71358Predator 3500 Super Quiet Inverter (71358) | 59137Predator 3500 Super Quiet Inverter (59137) |
|---|---|---|
| Spark plug type | F7RTC (Torch)[manual p.2]Find this part: Amazon Sears PartsDirect | F7RTC (Torch)[manual p.2]Find this part: Amazon Sears PartsDirect |
Serial tag location
The manufacturer documents we used do not say where the serial tag is. Check the operator's manual.
Manuals and sources
All links go to the manufacturer. Dates are printed dates unless marked otherwise.
- manualitem 59137 UPC 193175458001 (manual rev 24k, ©2022) manuals.harborfreight.com · dated 2024-revk · retrieved 2026-10-25
- manualitem 71358 UPC 193175546258 (manual rev 24a, ©2024) manuals.harborfreight.com · dated 2024-reva · retrieved 2026-10-25
Recalls
CPSC recalls for Predator 3500 Super Quiet Inverter
No CPSC recall found as of 2026-10-25. 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.
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Last verified against manufacturer documents: 2026-10-25. Spotted an error? See contact.