Service parts for the XQ800
Grouped by system, with how many of each the parts manual calls for.
Oil system
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 | 800 kW |
| Prime power | 725 kW |
| Emissions | Tier 4 Interim |
| Controller | EMCP 4.4 |
| Oil capacity | 99 L (104.6 US qt) |
| Alternator | SR4B (4-pole) |
| Voltage options | 480/277 V, 240/139 V, 208/120 V |
| Phase | Three-phase |
| Circuit breaker | 3000 A |
| Battery quantity | 2 |
| Coolant capacity | [100.7, 100.7, 100.7, 100.7] L |
| Max ambient | [43, 43, 43, 43] °C |
| Dimensions (L×W×H) | 9144×2438×2896 mm |
| Dry weight | 16129 kg |
| Sound level | 71.0 dBA @ 7 m |
| Fuel tank | 4730.0 L |
| Tank runtime | 28 hr |
Filters for the Caterpillar C27 ATAAC
6Engine-mounted filters the filter manufacturers list for this engine family. These come from the engine, not from this generator set’s own parts list, so confirm against your serial number before ordering.
| System | Filter | Description | Cross-references | |
|---|---|---|---|---|
| Oil filter | P551808 | Lube Filter, Spin-On Full Flow | CATERPILLAR 1R1808, CATERPILLAR 1R808, NAPA 7792, BALDWIN B7299 | KuduParts $80.00 |
| Oil filter | P554005 | Lube Filter, Spin-On Full Flow | CATERPILLAR 1R0716, CATERPILLAR 1W2660, NAPA 1792, BALDWIN BF46150-O | FridayParts $41.73 |
| Fuel filter | P551316 | Fuel Filter, Spin-On | CATERPILLAR 1R0755, CATERPILLAR 3890433, NAPA 3685, BALDWIN BF7639 | KuduParts $54.00 FridayParts $55.99 |
| Fuel filter | P551311 | Fuel Filter, Spin-On Secondary | CATERPILLAR 1R0749, CATERPILLAR 3089679, BALDWIN BF7587, TAMROCK 019854051 | KuduParts $147.00 FridayParts $151.84 |
Listed for this engine in only one kind of machine, so they may depend on how the engine was installed:
| System | Filter | Description | Cross-references | |
|---|---|---|---|---|
| Fuel / water separator | P551858 | Fuel Filter, Water Separator Spin-On | CATERPILLAR 1335673, CATERPILLAR 1700061, NAPA 3780, BALDWIN BF1265 | FridayParts $39.00 KuduParts $48.00 |
| Coolant filter | P554685 | Coolant Filter, Spin-On Non-Chemical | CATERPILLAR 3I1300, CATERPILLAR 4059558, NAPA 4070, MTU 0002040791 | buy |
Maintenance & consumables
for the Caterpillar C27 ATAAC| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Oil filter | Duplex primary with integral water separator and change-over valve, engine mounted secondary filter | 2P4005 | Amazon eBay $32.99 PartsGeek $23.97 NAPA $33.79 KuduParts $39.00 FridayParts $41.73 | ||
| Battery | 24 VDC/20A battery charger with float/equalize modes and charging ammeter, Two oversized maintenance free batteries, Solar power battery maintainer | — | |||
| Oil | Lubricating oil system including pump, integral oil cooler, lube oil, filter, filtered crankcase breather system and oil drain line with internal valve routed to connection point accessible from exterior | 99 L (104.6 US qt) | — | 500 hr |
Recommended fluids
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Fuel | ultra low sulfur diesel (ULSD) | Required for Tier 4 Interim emissions compliance |
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 Caterpillar XQ800?
The Caterpillar XQ800 is rated 800 kW standby.
What engine does the Caterpillar XQ800 use?
The Caterpillar XQ800 is powered by the Caterpillar C27 ATAAC engine.
What kind of fuel does the Caterpillar XQ800 run on?
The Caterpillar XQ800 runs on diesel.
How much oil does the Caterpillar XQ800 take?
The Caterpillar XQ800 takes 99 L (104.6 US qt) of engine oil, per XQ800 LEHX0009-02.
What is the coolant capacity of the Caterpillar XQ800?
The Caterpillar XQ800 cooling system holds [100.7, 100.7, 100.7, 100.7] liters for the radiator system including the engine, per the manufacturer specification sheet.
What is the prime power rating of the Caterpillar XQ800?
The Caterpillar XQ800 is rated 725 kW prime (906 kVA), against 800 kW standby.
What is the sound level of the Caterpillar XQ800?
The Caterpillar XQ800 is rated at 71.0 dBA at 7 m, per the manufacturer specification sheet.
What is the dry weight of the Caterpillar XQ800?
The Caterpillar XQ800 has a dry weight of 16129 kg (35558 lb).
What size fuel tank does the Caterpillar XQ800 have?
The Caterpillar XQ800 has a 4730 liter (1250 US gallon) fuel tank, giving about 28 hours of runtime.
What voltage does the Caterpillar XQ800 produce?
The Caterpillar XQ800 is offered in 480/277 V, 240/139 V, 208/120 V, Three-phase-phase.
What battery does the Caterpillar XQ800 use?
The Caterpillar XQ800 uses 2 batteryies, per the manufacturer specification sheet.
What alternator comes on the Caterpillar XQ800?
The Caterpillar XQ800 uses a SR4B alternator. It has 4 poles.
What oil filter fits the Caterpillar XQ800?
The Caterpillar XQ800 uses oil filter part number 2P4005. Equivalents: DONALDSON P554005, NAPA 1792, CATERPILLAR 1R0716.
Parts
1model family| Part # | Description | Qty | System | |
|---|---|---|---|---|
| LEBE0009-00 | Cat NOx Reduction System and Clean Emissions Module (DOC+DPF+CRS) | Service part / kit | Amazon eBay |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Available documents
This page was generated from the 2 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.