Miller Trailblazer® 330 (Kohler) Engine Driven Welder Generator - 907831
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The Miller Trailblazer® 330 (907831) delivers 330 amps of DC weld power and 12,000 watts peak / 10,500 watts continuous generator output in a compact, quiet, and fuel-efficient package. Featuring Auto-Speed™ engine control, a digital interface, ArcReach® compatibility, and direct spool-gun connection, it’s the next generation of professional-grade engine drives. Rebate eligible through Build with Blue™.
$9,773.00
🧰 Miller Trailblazer® 330 Engine-Driven Welder – Kohler (907831)
The Miller Trailblazer 330 (907831) raises the bar for engine-driven welding on work trucks and mobile service rigs. Delivering up to 330 amps DC weld output and 12 kW peak / 10.5 kW continuous auxiliary power, this machine blends welding capability, generator strength, and truck-bed efficiency into one compact package. Built for professionals, the Trailblazer 330 provides the smoothest arc, superior fuel efficiency, and the reliability Miller is known for.
Powered by a dependable 23.5 HP Kohler Command Pro gasoline engine and Miller’s advanced Auto-Speed™ Technology (2,400 – 3,600 RPM), it automatically adjusts engine speed to meet welding and generator demands. The result: reduced noise (~65 dB idle / ~73.5 dB weld), lower fuel consumption, and longer engine life. The Trailblazer 330 is over 80 lb lighter and 13 % smaller than prior models, giving you more space and payload capacity on your truck.
Its full-color digital display simplifies setup and tracking — showing amperage, voltage, and maintenance alerts at a glance. The interface supports ArcReach® remote control over weld leads, letting operators fine-tune weld parameters from the work area without walking back to the machine.
The Trailblazer 330 is a full multiprocess machine — Stick (SMAW), DC TIG (GTAW), MIG (GMAW), Flux-Cored (FCAW), and Air Carbon Arc (CAC-A) up to ¼″ carbons — with smooth arc starts and precise output. It also includes direct-connect spool-gun capability, supporting Miller Spoolmate® guns for quick aluminum MIG setups without a control box.
With 12,000 W peak / 10,500 W continuous generator power, you can run grinders, plasma cutters, and lights while welding — ideal for construction, farm repair, and mobile service work. Every component is engineered for reliability in the harshest job-site environments.
🔧 Key Highlights
- 330 A DC weld output / 12 kW peak – 10.5 kW continuous power.
- Auto-Speed™ Technology — engine only runs as fast as needed for less noise and fuel use.
- ArcReach® ready — adjust parameters remotely through weld leads.
- Direct-connect spool gun capable — MIG aluminum without external control box.
- Digital interface with Auto-Set™ presets and maintenance reminders.
- Compact and lightweight — ~80 lb lighter and 13 % smaller than previous models.
- Quiet operation — ≈ 65 dB idle / ≈ 73.5 dB weld.
💰 Limited-Time Rebate Offer
Purchase a qualifying Trailblazer 330 Gas Model (907831) between October 1 and December 31, 2025,
and receive a $700 Build With Blue™ rebate plus a Free Machine Cover!
Must submit your claim online at millerrebatecenter.com within 30 days of purchase.
GET MORE SAVINGS WHEN YOU ADD ON MILLER® ACCESSORIES* OR HOBART® FILLER METALS.
⚙️ Complete Technical Specifications
📄 Download Full Spec Sheet (PDF)
| Product Name | Miller Trailblazer 330 – Kohler (907831) |
| Manufacturer | Miller Electric Mfg. LLC |
| Part Number | 907831 (Base Kohler) |
| Processes Supported | Stick (SMAW), MIG (GMAW)*, Flux-Cored (FCAW)*, DC TIG (GTAW), Air Carbon Arc (CAC-A) up to ¼″ carbons |
| Rated Weld Output | 330 A @ 30 V (100 % Duty Cycle) Stick/TIG; 325 A @ 30.25 V (100 %) MIG/FCAW |
| Weld Output Range | 20 – 330 A DC • 15 – 40 V (MIG Mode) |
| Open-Circuit Voltage (OCV) | 107 V DC |
| Auxiliary Power Output | 12,000 W peak / 10,500 W continuous (single phase) |
| Fuel Capacity | 11 gal (41.6 L) |
| Engine Make / Model | Kohler Command Pro gasoline, 23.5 HP @ 3,600 RPM |
| Engine Speed (Auto-Speed™) | 2,400 – 3,600 RPM (variable by load) |
| Sound Level | ≈ 65 dB idle / ≈ 73.5 dB weld |
| Dimensions (W × H × D) | 20.13″ × 26.5″ × 37.06″ (511 × 673 × 941 mm) |
| Net Weight | ≈ 400 lb (181 kg) |
| Certifications & Standards | CSA Certified (US & Canada), ISO 9001 Compliant, EPA Tier 4 Final Engine |
| Warranty | 3-Year True Blue (parts & labor) • Engine – 2-Year Kohler Manufacturer Warranty |
📹 Product Video
Watch the Miller Trailblazer 330 in action — see the new digital interface, Auto-Speed engine control and ArcReach capabilities.
❓ Common Questions
What’s the difference between 907831 and other Trailblazer 330 models?
907831 is the base Kohler model. Other SKUs add Excel™ Power (120 V at idle), EFI, Battery Charge/Crank Assist, or Wireless Interface Control for advanced remote management.
Can I run a spool gun directly?
Yes — Trailblazer 330 features a direct spool-gun connection (10-pin) for aluminum MIG without a control box.
Can I weld and run tools simultaneously?
Yes — the machine supplies 10,500 W continuous power while welding at full output.
How loud is it?
Approximately 65 dB at idle and 73.5 dB at weld speed — significantly quieter than older models.
⭐ Why Buy From Service Welding Supply
- 🔹 Authorized Miller Distributor — factory sealed units qualify for rebates and warranty.
- 🚚 Fast Free Shipping — nationwide delivery with insured freight.
- 🧠 Engine-Drive Experts — we specialize in Trailblazer and Bobcat setups.
- 💸 Price Match + Rebate Help — we’ll help you get the maximum Build with Blue™ value.
- 🏆 Family-Owned Since 1975 — trusted by welders nationwide.
Specifications
Product Literature
Processes
Technologies
General Specifications
| Title | Trailblazer® 330 (Kohler) w/Excel™ Power |
|---|---|
| Applications | Aluminum Welding Fabrication Mobile Fabrication & MRO Structural Welding |
| Industries | Construction & Fabrication Heavy Equipment |
| Amperage | 20 A – 330 A |
| Weldable Metals | Aluminum Stainless Steel Steel |
| Rated Carbon Diameter | 1/4 in (6.4 mm) |
| Current Type | DC |
| Max Open Circuit Voltage | 107 VDC |
| Portability | Lift Eye (Standard) Running Gear / Cart (Optional) Trailer (Optional) |
| Engine Brand | Kohler |
| Engine Idle Speed | 2400 RPM |
| Engine Weld Speed | Advanced Auto-Speed(TM) technology: Varies engine speed from 2,400-3,600 rpm to match weld output |
| Fuel Tank Size | 11 Gallon |
| Fuel Type | Gasoline |
| Horsepower | 23.5 hp |
| Weld Output | CC / CV |
| Rated Output | CC/DC Stick/TIG 330 A at 30 V, 100% duty cycle, CV/DC MIG/FCAW 325 A at 30.25 V, 100% duty cycle |
| Single Phase Auxiliary Continuous Power | 10500 W |
| Single Phase Auxiliary Peak Power | 12000 W |
| Sound Rating | 65 dB @ idle and 73.5 dB @ max weld |
| Net Width | 20.13 in |
| Net Height | 26.5 in |
| Net Length | 37.06 in |
| Net Weight | 400 lbs |
| Warranty | 3 Years Miller’s True Blue Warranty |
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Brands, Equipment, Miller Electric, Miller Engine Driven Welders, Specials907831
Miller Trailblazer® 330 (Kohler) Engine Driven Welder Generator
Brands, Equipment, Miller Electric, Miller Engine Driven Welders, SpecialsMiller Trailblazer® 330 (Kohler) Engine Driven Welder Generator
The Miller Trailblazer® 330 (907831) delivers 330 amps of DC weld power and 12,000 watts peak / 10,500 watts continuous generator output in a compact, quiet, and fuel-efficient package. Featuring Auto-Speed™ engine control, a digital interface, ArcReach® compatibility, and direct spool-gun connection, it’s the next generation of professional-grade engine drives. Rebate eligible through Build with Blue™.
SKU: 907831
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