Jump Starters That Crank a 6.7 Liter Diesel Truck
NOCO Boost X GBX155 leads on capability, with a 4250 amp rating and coverage for diesels near 10 liters. Boost Pro GB150 suits pickups where the battery hides behind a fender. Shops running back to back starts should pick the Clore Jump-N-Carry JNC660 for its AGM cell.
NOCO Boost X GBX155 fits drivers of 6.7 liter diesels and dual battery rigs. Its 4250 amp rating covers engines to roughly 10 liters, and USB-C Power Delivery refills the pack at 60 watts. Bulk is the catch. Nothing this large hides in a glovebox, so plan a spot behind the seat.
Peak amp numbers sell packs but describe a fraction of a second. Cranking amps, cable gauge and behavior below freezing decide whether a diesel turns over. We compared published cranking output, rated engine displacement, cable thickness, chemistry and recharge method. Owner reports on cold mornings and repeat attempts settled the close calls.
Our top picks
NOCO Boost X GBX155
Rated at 4250 amps, GBX155 sits at the top of NOCO’s lithium range and clears gas and diesel engines to roughly 10 liters. USB-C Power Delivery at 60 watts refills the pack and charges a laptop from the same port. Spark proof clamps and reverse polarity protection forgive a wrong connection in the dark.
Pros
- Highest rated output among the lithium packs here
- Charges over USB-C, so no proprietary brick to lose
- Spark proof clamps tolerate a polarity mistake
Cons
- Too bulky to stow under a bench seat
- Cold cells need warming before they hit rated output
NOCO Boost Pro GB150
Long the default heavy duty lithium pack, GB150 carries a 3000 amp rating and covers gas engines near 9 liters and diesels near 7. Output cables run longer than most rivals, which helps when a battery sits behind a fender liner. A 12 volt port drives a tire inflator or work light off the same cell.
Pros
- Extra cable length reaches buried batteries
- IP65 shell handles a wet roadside start
- 12 volt outlet powers inflators and lights
Cons
- Recharge takes longer than the USB-C generation
- Weight makes one handed carrying awkward
Clore Automotive Jump-N-Carry JNC660
AGM lead acid replaces lithium here, and that swaps the priorities. Output lands at 425 cranking amps and 1700 peak, delivered across back to back attempts that make small lithium packs pause to cool. Cables measure 46 inches in number 2 gauge, thick enough that voltage drop stops mattering.
Pros
- Repeat cranking without a thermal cutout
- Number 2 gauge cable limits voltage drop
- Cold weather output stays predictable
Cons
- Around 18 pounds, so carrying it is a chore
- Wants a top up charge every few months in storage
HULKMAN Alpha85
A 2000 amp rating and 20000mAh cell put Alpha85 in range of half ton and three quarter ton pickups. Its LCD panel reports charge state, connection status and fault codes, so a failed attempt comes with a reason. Clamps light up and warn before a terminal gets touched.
Pros
- Screen explains why a start attempt failed
- Clamp alerts cut down roadside mistakes
- Small enough to live in a center console
Cons
- Not rated for the largest diesel engines
- Plastic case carries no ingress rating
GOOLOO GT4000S
GOOLOO quotes 4000 amps from a 26800mAh pack, enough for large gas engines and mid size diesels. A 100 watt USB-C port turns it into a laptop charger between jobs, which earns space in a work truck. Clamps and cable feel thinner than NOCO or Clore, so treat it as backup rather than a bench tool.
Pros
- High claimed output at the low end of the category
- 100 watt USB-C charges laptops and tool batteries
- Big cell doubles as a cab power bank
Cons
- Clamp and cable quality trails NOCO and Clore
- Peak claim is rated less conservatively
DEWALT DXAEPS14 Jump Starter
One box covers two roadside failures: a 1400 peak amp AGM jump starter and a 120 PSI digital compressor. Set a pressure and the pump shuts off on its own, useful across six tires on a dual rear wheel truck. Weight keeps this one in the garage or the bed, not in your hand on a walk to a stranded vehicle.
Pros
- Fixes a flat battery and soft tires in one unit
- Preset cutoff suits dually tire pressures
- AGM cell takes repeated cranking attempts
Cons
- Too heavy to carry any real distance
- Amp rating sits below dedicated heavy duty packs
Antigravity Batteries XP-10 Micro-Start
XP-10 puts roughly 600 cranking amps into an 18000mAh body that fits a glovebox. That covers a V8 gas truck and falls short of a dual battery diesel. Laptop and USB outputs make it a travel power bank first, which suits a driver buying insurance rather than a shop tool.
Pros
- Smallest pack here that still starts a V8
- 19 volt laptop output is rare in this category
- Easy to keep topped up and forget about
Cons
- Underpowered for large diesel engines
- Short cables limit where it can sit
How they stack up
| # | Model | Peak rating | Best for | Score | Price |
|---|---|---|---|---|---|
| 1 | NOCO Boost X GBX155 | 4250 amps | Best overall | 9.4 | Check price |
| 2 | NOCO Boost Pro GB150 | 3000 amps | Best for large diesel pickups | 9.2 | Check price |
| 3 | Clore Automotive Jump-N-Carry JNC660 | 425 | Best for repeated starts | 9.0 | Check price |
| 4 | HULKMAN Alpha85 | 2000 amps | Best value | 8.7 | Check price |
| 5 | GOOLOO GT4000S | 4000 amps | Best budget high output | 8.5 | Check price |
| 6 | DEWALT DXAEPS14 Jump Starter | 1400 | Best with an air compressor | 8.2 | Check price |
| 7 | Antigravity Batteries XP-10 Micro-Start | About 600 | Best compact backup | 8.0 | Check price |
What matters most
How many amps you actually need for a truck Peak amps describe a burst lasting a fraction of a second. Cranking amps carry the honest load, which is why Clore lists 425 cranking alongside 1700 peak. Displacement ratings help more than either figure. Under 5 liters, almost anything here works. A 6.7 liter diesel wants a genuinely heavy duty pack. Twin battery rigs raise the bar again, and NOCO states limits for both fuels on the GB150 and GBX155.
Lithium vs AGM lead acid in a work truck Chemistry decides what happens on the second and third attempt. Lithium packs such as the GBX155 stay light, hold charge for months and refill quickly. They also throttle output when cells run hot or sit below freezing. AGM units, the JNC660 and DXAEPS14 here, weigh far more and crank repeatedly without cutouts. Shops and yards lean lead acid for that reason alone. Drivers who want one pack living in the cab year round lean lithium.
Cables, clamps and battery access on a pickup Cable gauge throttles current more often than the battery does. Number 2 gauge, as on the JNC660, loses far less voltage than the thin leads bundled with budget packs. Length matters on trucks where a battery hides behind a fender or under a bed floor, and GB150 earns its place there. Jaw opening deserves a look too, since commercial terminals and side post batteries defeat small clamps.
Cold weather starts and storage between uses A flat jump starter helps nobody. Lithium cells self discharge slowly, so a check every three months covers it, and most packs show a charge bar. Lead acid needs a top up every one to three months or the plates sulfate. Below freezing, bring a lithium pack into the cab for a few minutes before connecting, because cold cells cannot deliver a rated figure. Store any unit dry with the clamps stowed, since corrosion at the jaws ends more packs than age does.
Questions worth asking
How many amps do I need to jump start a diesel truck?
Plan on 2000 peak amps or more for a 6.7 liter diesel, and 400 plus cranking amps for shop use. Dual battery rigs sit at the top of that range. NOCO publishes diesel displacement limits for the GB150 and GBX155, which beats comparing peak numbers.
Can a lithium jump starter start a 7.3 or 6.7 liter diesel?
Yes, when the pack is rated for it. Boost Pro GB150 covers diesels to roughly 7 liters, and Boost X GBX155 goes beyond that. Small packs like the Antigravity XP-10 were never built for that load.
Which jump starter is best for a dually or a fleet truck?
Clore Jump-N-Carry JNC660 handles a run of starts better than any lithium pack here. Need tire inflation on the same call, and DEWALT DXAEPS14 covers both jobs at 120 PSI.
Is a jump starter better than jumper cables?
For a truck, usually. A pack works with no second vehicle, no long leads stretched between engine bays and no risk to another truck’s electronics. Keep cables in the bed anyway for the day the pack sits flat.
Do jump starters work in freezing weather?
AGM units like the JNC660 hold output best in the cold. Lithium packs still start engines but deliver less current until they warm, so store them in the cab instead of the bed. Charge indication also reads lower at low temperatures.
How often should you charge a jump starter?
Check lithium every three months and lead acid monthly. Idle time drains both, and a lead acid battery left flat through a winter may never come back. Most units show state of charge on a display or LED bar.
NOCO GB150 vs GBX155: which suits a work truck?
GBX155 rates higher and refills over USB-C, so it fits the biggest engines and drivers who want one cable for everything. GB150 brings longer output cables, which wins on trucks with the battery tucked out of reach.
Can a jump starter damage truck electronics?
Not with reverse polarity and spark protection, which every pack here includes. Trouble comes from unprotected units connected backwards, or from no name packs with no protection circuit. Clamp to the correct terminals and a clean ground point.
What size jump starter fits in a glovebox?
Antigravity XP-10 Micro-Start is the only pack here that genuinely fits one, at 18000mAh with about 600 cranking amps. HULKMAN Alpha85 slides into a center console instead. Anything rated past 3000 amps needs floor or toolbox space.
Is a jump starter with an air compressor worth it?
Worth it when soft tires are a recurring problem. DEWALT DXAEPS14 pairs both at 120 PSI, enough for light truck tires. Separate tools give more flexibility, since the combined unit is heavy to move.
Our pick
Buy the NOCO Boost X GBX155 for a heavy truck, since its rated engine coverage handles a 6.7 liter diesel and USB-C recharging removes the usual excuse for a dead pack in the toolbox. Anyone starting vehicles all day, in a shop or a yard, should take the Clore Jump-N-Carry JNC660 for its AGM cell and number 2 gauge cables. Drivers who only want insurance behind a V8 pickup can stop at the HULKMAN Alpha85.
Tony Russo
Tony trained as an automotive technician and spent years in service and parts retail before moving into writing. He focuses on garage tools, car care products and accessories from a hands-on maintenance perspective.
