Service parts for the KD1250-A
Grouped by system, with how many of each the parts manual calls for.
Fuel system
1 requiredBelts
1 requiredCooling system
1 requiredElectrical
1 requiredIgnition
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Fuel | Diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 164 kW |
| Standby kVA | 1250 |
| Prime power | 164 kW |
| Emissions | Tier 4 |
| Controller | Kohler |
| Oil capacity | 100.0 L |
| Alternator | KH04830TO4D (4-pole, Class H insulation) |
| Voltage options | 208 V, 600 V |
| Phase | 3 |
| Rated current | 600 A |
| Power factor | 0.8 |
| Circuit breaker | 600 A |
| Battery group | 24 |
| Battery cranking | 1000 CCA |
| Battery voltage | 12 V |
| Battery quantity | 2 |
| Coolant capacity | 1000 L |
| Max ambient | 45 °C |
| Dimensions (L×W×H) | 2115×1100×1597 mm |
| Dry weight | 10033 kg |
| Sound level | 76.0 dBA @ 7 m |
| Fuel tank | 1000.0 L |
| Tank runtime | 10 hr |
Engine
| Oil capacity | 100.0 L |
|---|---|
| Coolant capacity | 1000.0 L |
| Displacement | 12.5 L |
| Aspiration | Turbocharged |
| Rated speed | 1500 rpm |
Maintenance & consumables
for the Kohler KD1250-A| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Fuel filter | Kohler | KH03850TO4D | 500 hr | Amazon eBay | |
| Oil filter | Kohler | KH05520TO4D | 500 hr | Amazon eBay | |
| Battery | Kohler | KH04920TO4D | 1000 hr | Amazon eBay | |
| Belt | Kohler | KH06810TO4D | 1000 hr | Amazon eBay | |
| Coolant | Kohler | 1000.0 L | KH04590TO4D | 1000 hr | Amazon eBay |
| Oil | 10W-30 | 100.0 L | KH04830TO4D | 200 hr | Amazon eBay |
| Spark plug | Kohler | KH05740TO4D | 1000 hr | Amazon eBay |
Service specifications
30| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Other | 10 in. weld flange bolt circle diameter B | 361.95 | mm (14.25 in.) | |
| Other | 10 in. weld flange outside diameter C | 406.4 | mm (16.0 in.) | |
| Other | 10 in. weld flange quantity of bolts / bolt hole diameter D | 12, 25.40 | mm (1.00 in.) | |
| Other | 12 in. weld flange bolt circle diameter B | 431.80 | mm (17.00 in.) | |
| Other | 12 in. weld flange outside diameter C | 482.6 | mm (19.0 in.) | |
| Other | 12 in. weld flange quantity of bolts / bolt hole diameter D | 12, 25.40 | mm (1.00 in.) | |
| Other | 14 in. weld flange bolt circle diameter B | 476.25 | mm (18.75 in.) | |
| Other | 14 in. weld flange outside diameter C | 533.4 | mm (21.0 in.) | |
| Other | 14 in. weld flange quantity of bolts / bolt hole diameter D | 12, 28.58 | mm (1.13 in.) | |
| Other | 16 in. weld flange bolt circle diameter B | 539.75 | mm (21.25 in.) | |
| Other | 16 in. weld flange outside diameter C | 596.9 | mm (23.5 in.) | |
| Other | 16 in. weld flange quantity of bolts / bolt hole diameter D | 16, 28.58 | mm (1.13 in.) | |
| Other | 18 in. weld flange bolt circle diameter B | 577.85 | mm (22.75 in.) | |
| Other | 18 in. weld flange outside diameter C | 635.0 | mm (25.0 in.) | |
| Other | 18 in. weld flange quantity of bolts / bolt hole diameter D | 16, 31.75 | mm (1.25 in.) | |
| Other | 20 in. weld flange bolt circle diameter B | 635.00 | mm (25.00 in.) | |
| Other | 20 in. weld flange outside diameter C | 698.5 | mm (27.5 in.) | |
| Other | 20 in. weld flange quantity of bolts / bolt hole diameter D | 20, 31.75 | mm (1.25 in.) | |
| Other | 5 in. weld flange bolt circle diameter B | 215.90 | mm (8.50 in.) | |
| Other | 5 in. weld flange outside diameter C | 241.30 | mm (9.50 in.) | |
| Other | 5 in. weld flange quantity of bolts / bolt hole diameter D | 8, 22.23 | mm (0.88 in.) | |
| Other | 6 in. weld flange bolt circle diameter B | 254.0 | mm (10.0 in.) | |
| Other | 6 in. weld flange outside diameter C | 279.4 | mm (11.0 in.) | |
| Other | 6 in. weld flange quantity of bolts / bolt hole diameter D | 8, 22.23 | mm (0.88 in.) | |
| Other | 8 in. weld flange bolt circle diameter B | 298.45 | mm (11.75 in.) | |
| Other | 8 in. weld flange outside diameter C | 342.9 | mm (13.5 in.) | |
| Other | 8 in. weld flange quantity of bolts / bolt hole diameter D | 8, 22.23 | mm (0.88 in.) | |
| Other | Weld flange angle A (10, 12, 14 in. nominal pipe size) | 30 | deg. | |
| Other | Weld flange angle A (16, 18, 20 in. nominal pipe size) | 22.5 | deg. | |
| Other | Weld flange angle A (5, 6, 8 in. nominal pipe size) | 45 | deg. |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Common questions
What size generator is the Kohler KD1250-A?
The Kohler KD1250-A is rated 164 kW standby (1250.0 kVA).
What engine is in the Kohler KD1250-A?
The Kohler KD1250-A is powered by the Kohler KD1250-A engine.
What kind of fuel does the Kohler KD1250-A run on?
The Kohler KD1250-A runs on Diesel.
How much oil does the Kohler KD1250-A take?
The Kohler KD1250-A engine in the Kohler KD1250-A has an oil capacity of 100.0 liters.
What alternator comes on the Kohler KD1250-A?
The Kohler KD1250-A uses a KH04830TO4D alternator. It has 4 poles. Insulation class H.
Which oil filter part number does the Kohler KD1250-A take?
The Kohler KD1250-A uses oil filter part number KH05520TO4D.
Which fuel filter part number does the Kohler KD1250-A take?
The Kohler KD1250-A uses fuel filter part number KH03850TO4D.
Parts
9| Part # | Description | Qty | System | |
|---|---|---|---|---|
| KH03850TO4D | Alternator Frame Size | 1 | Alternator | Amazon eBay |
| KH04830TO4D | Alternator Frame Size | 1 | Alternator | Amazon eBay |
| KH05740TO4D | Alternator Frame Size | 1 | Alternator | Amazon eBay |
| KH06721TO4D | Alternator Frame Size | 1 | Alternator | Amazon eBay |
| KH06810TO4D | Alternator Frame Size | 1 | Alternator | Amazon eBay |
| KH04590TO4D | Cog with respect to different alternators | 1 | Service part / kit | Amazon eBay |
| KH04920TO4D | Cog with respect to different alternators | 1 | Service part / kit | Amazon eBay |
| KH05520TO4D | Cog with respect to different alternators | 1 | Service part / kit | Amazon eBay |
| KH05641TO4D | Cog with respect to different alternators | 1 | Service part / kit | Amazon eBay |
Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | 50% | 10.0 | 26.4 |
| Prime | 75% | 15.0 | 33.0 |
| Prime | 100% | 20.0 | 44.0 |
| Standby | 50% | 10.0 | 26.4 |
| Standby | 75% | 15.0 | 33.0 |
| Standby | 100% | 20.0 | 44.0 |
Available documents
Reference — G6-39 0918AZ (Kohler)Reference — WaterTreatment CaseStudy (Kohler)Parts manual — adv9015 (Kohler)Parts manual — tp7054 (Kohler)Service manual — tp7117 (Kohler)