Ford
Ford LSG635
LSG
Ford Power Products LSG635 — 3.5 L V6 spark-ignition genset engine, naturally aspirated, bi-fuel natural gas / LPG. 45.6 kWm (61.1 hp) on natural gas, 49.7 kWm (66.6 hp) on LPG at 1800 rpm (SAE J1349 intermittent); 11.8:1 compression, EPA/CARB certified with 3-way catalyst.
Overhaul & repair parts- Manufacturer files
- 2 datasheets
- Last updated
- 2026-06-29
- Package route
- gas generator sets
- Prime Power · 60 Hz
- 51 kVA
- Electrical Output
- 41 kWe
- Cylinders
- V6
- Displacement
- 3.5 L
- Rated Speed
- 1,800 RPM
Power Ratings
kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf
60 Hz1800 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 45.6 | 41 | 51.3 |
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Ford LSG635 overhaul & repair parts
Already running a Ford LSG635? Start with the parts you need, then send your nameplate so we can help check the right references for your engine.
Reviewed part-number references
A starting point for identification. Fitment must be confirmed before ordering.
- Cylinder head gasketBL3Z-6051-G
Right cylinder head gasket
Fitment check: The archived source prints complete Ford model LSG635 and exact right cylinder head gasket part number BL3Z-6051-G in one bounded record. Right-side gasket only; confirm engine serial/build and installed head specification before ordering.
Source: EDI LSG635 parts manual
Selected references only; this is not a complete overhaul list or a stock listing.
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Ford LSG635 generator set context
The Ford LSG635 is listed here as a natural gas generator-drive engine for 60 Hz generator sets, with a headline 51 kVA / 41 kWe / prime rating. Use this page to compare the published engine output, electrical kWe/kVA ratings, emissions level, datasheet availability, and neighboring models before specifying an alternator, controller, enclosure, voltage, and compliance package.
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Technical Specifications
| Brand | Ford |
| Model | LSG635 |
| Series | LSG |
| Configuration | V6 |
| Cylinders | 6 |
| Displacement | 3.5 L |
| Compression Ratio | 11.8:1 |
| Dry Weight | 177 kg |
| Fuel Type | Natural Gas |
| Ignition Type | Spark Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | U.S. EPA Stationary |
| Certifications | EPA, CARB, 3-way catalyst |
| Country of Origin | United States |
Frequently asked questions
What is the power output of the Ford LSG635?
The Ford LSG635 is rated at 51 kVA prime at 60 Hz (1,800 rpm).
Does the LSG635 run at 50 Hz or 60 Hz?
The Ford LSG635 is rated for 60 Hz (1,800 rpm).
What fuel does the Ford LSG635 use?
The Ford LSG635 is a Natural Gas generator-set engine.
What is the displacement and cylinder configuration of the LSG635?
The Ford LSG635 is a V6 (6-cylinder) engine with a displacement of 3.5 L.
What emissions information is listed for the LSG635?
This record lists U.S. EPA Stationary for the Ford LSG635. Confirm the exact engine family, model year, configuration and applicable manufacturer certification documents before specifying it for a regulated project. A database label does not establish certification of a complete generator package.
What is the catalog status of the Ford LSG635?
The Ford LSG635 is marked active in this database. Confirm current production and availability with the manufacturer; catalog status is not a live supply check.
Are reference documents available for the LSG635?
This page links reference documents for the Ford LSG635. Check each document's title, model coverage, revision and rating conditions before using it for selection.