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Miller Big Blue 400 Pro Kubota Industrial Welder/Generator
The Miller Big Blue 400 Pro (907732) is a welder/generator with a Kubota D902 Tier 4 Final diesel (24.8 HP at 3,600 RPM) and 24-gallon tank. It welds 40-400A DC (100% at 300A), has Auto-Speed, and gives 20,000W 3-phase / 11,000W 1-phase; 76 dB, about 1,110 lb.
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The Miller Big Blue 400 Pro (907732) is a welder/generator with a Kubota D902 Tier 4 Final diesel (24.8 HP at 3,600 RPM) and 24-gallon tank. It welds 40-400A DC (100% at 300A), has Auto-Speed, and gives 20,000W 3-phase / 11,000W 1-phase; 76 dB, about 1,110 lb.
- Brand: Miller
- Model: Big Blue 400 Pro
- MPN: 907732
- Engine: Kubota D902-E4B, 3-Cylinder Diesel, Tier 4 Final
- Engine Power: 24.8 HP @ 3,600 RPM
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COMPLETE PRODUCT INFORMATION
Full Product Description
The Miller Big Blue 400 Pro (907732) is a welder/generator with a Kubota D902 Tier 4 Final diesel (24.8 HP at 3,600 RPM) and 24-gallon tank. It welds 40-400A DC (100% at 300A), has Auto-Speed, and gives 20,000W 3-phase / 11,000W 1-phase; 76 dB, about 1,110 lb.
Specifications
- Brand: Miller
- Part / Model Number: Big Blue 400 Pro
- Engine: Kubota D902-E4B, 3-Cylinder Diesel, Tier 4 Final
- Engine Power: 24.8 HP @ 3,600 RPM
- Fuel Type: Diesel
- Fuel Tank Capacity: 24 gallons (90.8 liters)
- Welding Output: 40 – 400 Amps DC
- Duty Cycle: 100% at 300 Amps
- Arc Control: Standard (No ArcReach on base model)
- Auto-Speed Technology: Yes – engine RPM matches load
- Generator Output (3-Phase): 20,000 watts continuous
- Generator Output (1-Phase): 11,000 watts continuous
- Receptacles: Optional GFCI (varies by configuration)
- Noise Level: 76 dB @ 23 ft (under load)
- Dimensions: 59.5 in L × 20 in W × 40.5 in H
- Weight: Approx. 1,110 lbs (504 kg)
Technical Specifications
Product data| Product | Miller Big Blue 400 Pro Kubota Industrial Welder/Generator |
|---|---|
| SKU | 907732 |
| Brand | Miller |
| Model | Big Blue 400 Pro |
| MPN | 907732 |
| Engine | Kubota D902-E4B, 3-Cylinder Diesel, Tier 4 Final |
| Engine Power | 24.8 HP @ 3,600 RPM |
| Fuel Type | Diesel |
| Fuel Tank Capacity | 24 gallons (90.8 liters) |
| Welding Output | 40 – 400 Amps DC |
| Duty Cycle | 100% at 300 Amps |
| Welding Processes | Stick (SMAW), DC TIG (GTAW), MIG (GMAW), Flux-Cored (FCAW), Air Carbon Arc Gouging (up to 1/4″) |
| Arc Control | Standard (No ArcReach on base model) |
| Auto-Speed Technology | Yes – engine RPM matches load |
| Generator Output (3-Phase) | 20,000 watts continuous |
| Generator Output (1-Phase) | 11,000 watts continuous |
| Receptacles | Optional GFCI (varies by configuration) |
| Noise Level | 76 dB @ 23 ft (under load) |
| Dimensions | 59.5 in L × 20 in W × 40.5 in H |
| Weight | Approx. 1,110 lbs (504 kg) |
| GTIN | 715959664160 |
| Google Product Category | 2920 (Welding Machines) |
| Part Number | 907732 |
Engineered forreal-world performance907732
DELIVERY & AFTER-SALES INFORMATION
Shipping & Returns
Important information for this product before and after purchase.Heavy or oversized equipment delivery is coordinated according to the product and destination address.
Timing and applicable delivery arrangements are confirmed during checkout or by Kayros Tool support.
Contact Kayros Tool before returning an item so eligibility, product condition, and return instructions can be confirmed.
Overview
The Miller Big Blue 400 Pro (907732) is a welder/generator with a Kubota D902 Tier 4 Final diesel (24.8 HP at 3,600 RPM) and 24-gallon tank. It welds 40-400A DC (100% at 300A), has Auto-Speed, and gives 20,000W 3-phase / 11,000W 1-phase; 76 dB, about 1,110 lb.
Specifications
- Brand: Miller
- Part / Model Number: Big Blue 400 Pro
- Engine: Kubota D902-E4B, 3-Cylinder Diesel, Tier 4 Final
- Engine Power: 24.8 HP @ 3,600 RPM
- Fuel Type: Diesel
- Fuel Tank Capacity: 24 gallons (90.8 liters)
- Welding Output: 40 – 400 Amps DC
- Duty Cycle: 100% at 300 Amps
- Arc Control: Standard (No ArcReach on base model)
- Auto-Speed Technology: Yes – engine RPM matches load
- Generator Output (3-Phase): 20,000 watts continuous
- Generator Output (1-Phase): 11,000 watts continuous
- Receptacles: Optional GFCI (varies by configuration)
- Noise Level: 76 dB @ 23 ft (under load)
- Dimensions: 59.5 in L × 20 in W × 40.5 in H
- Weight: Approx. 1,110 lbs (504 kg)
Specifications
Brand: Miller
Model: Big Blue 400 Pro
MPN: 907732
Engine: Kubota D902-E4B, 3-Cylinder Diesel, Tier 4 Final
Engine Power: 24.8 HP @ 3,600 RPM
Fuel Type: Diesel
Fuel Tank Capacity: 24 gallons (90.8 liters)
Welding Output: 40 – 400 Amps DC
Duty Cycle: 100% at 300 Amps
Welding Processes: Stick (SMAW), DC TIG (GTAW), MIG (GMAW), Flux-Cored (FCAW), Air Carbon Arc Gouging (up to 1/4″)
Arc Control: Standard (No ArcReach on base model)
Auto-Speed Technology: Yes – engine RPM matches load
Generator Output (3-Phase): 20,000 watts continuous
Generator Output (1-Phase): 11,000 watts continuous
Receptacles: Optional GFCI (varies by configuration)
Noise Level: 76 dB @ 23 ft (under load)
Dimensions: 59.5 in L × 20 in W × 40.5 in H
Weight: Approx. 1,110 lbs (504 kg)
GTIN: 715959664160
Google Product Category: 2920 (Welding Machines)
Part Number: 907732
Shipping & Returns
NST Cargo coordination: Heavy or oversized equipment delivery is coordinated according to the product and destination address.
Delivery estimate: Timing and applicable arrangements are confirmed during checkout or by Kayros Tool support.
Returns: Contact Kayros Tool before returning an item so eligibility, condition, and instructions can be confirmed.
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Miller Big Blue 400 Pro Kubota Industrial Welder/Generator$11,911.68

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