ABOUT THIS EPISODE
When firefighters respond, there is no room for hesitation. The equipment behind them has to perform without fail.
In this episode of Power Onward, Kim sits down with Chris to explore the powertrain technology behind fire and emergency vehicles. From engines designed for extreme duty cycles to braking systems that bring massive vehicles to a stop, the conversation looks at what keeps these trucks ready at all times.
Chris shares how Cummins has supported fire service for nearly a century, starting with one of the first diesel-powered fire trucks and continuing with modern innovations that improve performance, maintenance, and emissions. The discussion also highlights how these vehicles operate as mobile power systems, supporting far more than just transport.
Hear how Cummins designs for reliability, supports customers through a strong service network, and continues to improve performance through data, connectivity, and new engine platforms.
In this episode, you’ll learn:
- How fire trucks operate as multi-function power systems beyond transport
- Why reliability and braking performance are critical in emergency response
- How connected technology helps keep vehicles in service and ready
Additional Resources:
- Cummins: Fire and emergency
- Cummins 2027 X15 Series
- Cummins X10
- Cummins presents new X10 to more than 36,000 fire, rescue service at FDIC
- Cummins brings disc brakes for single rear-drive axles at FDIC International 2026 | Cummins Inc.
- Truck Equipment Manufacturers and Body Builders
- Fire Pump Drive FAQs
Interested in learning more? Subscribe to the [3-minute Power Up] to get breakthrough stories and the latest innovations in power technology delivered straight to your inbox: https://www.cummins.com/news/podcast#subscribe
Dive into the conversation:
(00:00) This is Power Onward
(00:10) Why fire response depends on reliable equipment
(00:41) Cummins' history in fire service applications
(01:20) What made early diesel fire trucks a step forward
(02:00) Why fire trucks act as mobile power systems
(03:01) Understanding real-world duty cycles
(03:20) Key components that support emergency performance
(04:24) New innovations in braking and maintenance
(05:05) Meeting stricter emissions with new engine designs
(07:00) Support network and connected diagnostics
(09:00) What the future of fire apparatus looks like
SHOW NOTES 🔗
TRANSCRIPT 🔗
00:00:03,860 --> 00:00:05,340
Welcome to Power Onward,
2
00:00:05,660 --> 00:00:09,780
the podcast that pulls back the
current on the technologies, people,
3
00:00:09,880 --> 00:00:12,620
and partnerships shaping
the future of power.
4
00:00:13,680 --> 00:00:16,820
When firefighters respond to
a call, every second matters.
5
00:00:17,420 --> 00:00:20,480
And the trucks that carry them
can't hesitate, stall, or fail.
6
00:00:20,740 --> 00:00:24,840
Across North America, a large portion
of those trucks rely on Cummins engines,
7
00:00:24,940 --> 00:00:28,460
brakes, and drive trains to get crews
where they need to go. As you can imagine,
8
00:00:28,800 --> 00:00:31,100
fire and rescue can be extremely
demanding of its equipment.
9
00:00:31,300 --> 00:00:32,280
And for nearly a century,
10
00:00:32,660 --> 00:00:36,000
Cummins has been engineering dependable
solutions designed to protect property
11
00:00:36,120 --> 00:00:37,140
and life.
Today,
12
00:00:37,360 --> 00:00:40,720
we're exploring the powertrain
technologies firefighters
trust when the stakes
13
00:00:40,860 --> 00:00:43,800
are absolute. Hi, I'm Kim, global
brand manager here at Cummins.
14
00:00:44,000 --> 00:00:44,833
Hi, I'm Chris.
15
00:00:45,100 --> 00:00:48,600
I look after the engine business for
fire and emergency and recreational
16
00:00:48,620 --> 00:00:49,440
vehicles.
17
00:00:49,440 --> 00:00:53,040
All right. So Chris, I hear that
Cummins and fire service goes way back.
18
00:00:53,200 --> 00:00:54,940
Tell me more about Cummins,
19
00:00:55,360 --> 00:00:57,900
their role in maybe diesel
engines and fire apparatus,
20
00:00:58,000 --> 00:00:59,960
and what else you can
tell me about that legacy.
21
00:01:00,560 --> 00:01:04,900
Yeah, so almost a hundred years,
right? Beginning with the 1937 Stutz,
22
00:01:05,480 --> 00:01:08,720
the first diesel powered fire
truck. It still lives in Columbus,
23
00:01:08,780 --> 00:01:10,000
Indiana in station two.
24
00:01:10,660 --> 00:01:15,540
What was unique to that was 150
horsepower, 500 pound feet of torque,
25
00:01:15,620 --> 00:01:19,780
which by today's standards would
not measure up, but then it did.
26
00:01:19,880 --> 00:01:21,080
It was a step up.
27
00:01:21,420 --> 00:01:24,920
It was a step up in not
just the equipment, but also
the overall reliability,
28
00:01:25,120 --> 00:01:25,440
right?
29
00:01:25,440 --> 00:01:26,273
Exactly.
30
00:01:27,360 --> 00:01:31,960
So that engine was actually
in service from 1939 to 1974,
31
00:01:32,360 --> 00:01:33,780
about 35 years.
32
00:01:34,200 --> 00:01:35,033
That same engine?
33
00:01:35,040 --> 00:01:38,580
Yes. Testament to dependability
and making active runs.
34
00:01:38,860 --> 00:01:39,600
Absolutely.
35
00:01:39,600 --> 00:01:44,020
So we're hearing reliability revolution
through a Cummins diesel engine inside
36
00:01:44,040 --> 00:01:47,720
of that 1937 studs with more
torque, better durability,
37
00:01:48,300 --> 00:01:49,160
and longer run times.
38
00:01:49,460 --> 00:01:49,780
Yes.
39
00:01:49,780 --> 00:01:51,560
That's triple wins. We love to hear that.
40
00:01:51,820 --> 00:01:54,720
But I think that even
for me and for others,
41
00:01:54,840 --> 00:01:58,440
when we see a fire apparatus or a
firetruck, we simply see a vehicle.
42
00:01:58,900 --> 00:02:02,760
But there's a lot more that goes into
that because recently I heard them
43
00:02:02,820 --> 00:02:04,600
referred to as mobile power plants.
44
00:02:04,720 --> 00:02:07,440
Does that have to do with that duty
cycle once the engines hit the scene?
45
00:02:07,740 --> 00:02:09,900
So it can be central
to the whole operation.
46
00:02:10,000 --> 00:02:13,140
So they don't just go to pump
water. They have a lot of tasks.
47
00:02:13,200 --> 00:02:17,540
About 70% of their runs are
EMS, emergency medical service.
48
00:02:17,820 --> 00:02:20,860
So sort of like an ambulance. Most
of them are trained as paramedics.
49
00:02:21,280 --> 00:02:24,360
So not only that, but sometimes
they need to get up high, right?
50
00:02:24,420 --> 00:02:27,460
So they have aerials,
so platforms or ladders,
51
00:02:27,800 --> 00:02:29,520
so they can get to tall places,
52
00:02:29,580 --> 00:02:32,600
whether it's fighting fires or getting
to people that need their help.
53
00:02:32,760 --> 00:02:34,480
They also block traffic, right?
54
00:02:34,560 --> 00:02:38,040
So many of us have experienced that on
the interstate where you want something
55
00:02:38,120 --> 00:02:42,400
large in front of your rescue workers
to prevent danger to those that are
56
00:02:42,460 --> 00:02:43,293
serving others.
57
00:02:43,460 --> 00:02:44,880
So they have a lot of jobs.
58
00:02:44,940 --> 00:02:45,320
They do.
59
00:02:45,320 --> 00:02:48,020
The firefighters in the building doing
their thing, but the truck itself,
60
00:02:48,080 --> 00:02:50,840
the apparatus itself, is running
multiple tasks simultaneously.
61
00:02:51,160 --> 00:02:55,700
Absolutely. In addition, they
also with radio communications,
62
00:02:56,020 --> 00:02:59,500
comfort station. So this truck
serves a lot of purpose. In fact,
63
00:02:59,560 --> 00:03:02,200
about 70% of the time,
they are just idling.
64
00:03:02,540 --> 00:03:03,120
70%.
65
00:03:03,120 --> 00:03:07,680
About 70% of the time, about 25% of
the time driving and about 5% pumping.
66
00:03:08,000 --> 00:03:11,040
So that's sort of a standard
duty cycle for the truck.
67
00:03:11,140 --> 00:03:11,840
I know. I like that.
68
00:03:11,840 --> 00:03:15,160
I just visualize a pie chart as you were
breaking that down. All right, Chris,
69
00:03:15,220 --> 00:03:17,120
let's get into the components
of a fire apparatus.
70
00:03:17,560 --> 00:03:20,540
Why is each component so
essential for emergency responses?
71
00:03:20,960 --> 00:03:23,920
So Cummins has worked with the
fire service for many years.
72
00:03:23,980 --> 00:03:28,340
We've sold about 50,000 of
these over the last 25 years.
73
00:03:28,780 --> 00:03:33,760
So we work very closely to upgrade and
understand the needs of the fire service.
74
00:03:34,300 --> 00:03:35,780
So as an example,
75
00:03:36,060 --> 00:03:39,560
these engines are uniquely
created for the fire service.
76
00:03:39,960 --> 00:03:42,780
So not only are they restricted ratings,
77
00:03:42,840 --> 00:03:47,520
meaning we maximize the horsepower and
torque over a standard over the road
78
00:03:47,640 --> 00:03:51,420
truck engine. They do not D-rate
for emissions related faults.
79
00:03:51,540 --> 00:03:56,320
There is no SCR inducement all in the
name of getting the truck to the scene.
80
00:03:56,500 --> 00:03:58,900
But as important as getting
to the scene quickly,
81
00:03:59,800 --> 00:04:02,220
stopping the truck is also important.
82
00:04:02,340 --> 00:04:07,040
So we have compression brakes that
are anywhere from 350 horsepower up to
83
00:04:07,380 --> 00:04:10,220
600 horsepower to slow
the vehicle quickly.
84
00:04:10,380 --> 00:04:12,700
Right, because I'm sure
that's a lot of equipment.
85
00:04:13,040 --> 00:04:16,340
The vehicle itself is quite heavy and
you need to stop on a dime, so to speak.
86
00:04:16,820 --> 00:04:20,000
Right. And that's on top of
the Meritor drive train, right?
87
00:04:20,320 --> 00:04:22,260
Which also has very strong braking.
88
00:04:22,500 --> 00:04:24,720
Are there any new innovations
within the powertrain?
89
00:04:24,960 --> 00:04:29,540
There sure are. So we'll be releasing
the Meritor QuickDisc systema.
90
00:04:30,380 --> 00:04:33,060
So not only does it provide
superior braking power,
91
00:04:33,260 --> 00:04:36,140
but the main thing is it makes
maintenance so much easier.
92
00:04:36,300 --> 00:04:39,960
You no longer have to pull the wheel
end off in order to change the rotor.
93
00:04:40,280 --> 00:04:41,360
This will save time.
94
00:04:41,740 --> 00:04:45,080
It will improve repair quality
within the maintenance organization.
95
00:04:45,420 --> 00:04:47,920
So it's a pretty cool innovation.
96
00:04:47,980 --> 00:04:51,460
That's a massive win for our customers
and for our teams on the ground doing
97
00:04:51,520 --> 00:04:55,740
those repairs. So we have this massive
80,000 pound mobile power plant.
98
00:04:56,200 --> 00:04:58,400
It's got to perform perfectly
in extreme conditions,
99
00:04:58,920 --> 00:05:02,920
meet strict standards when it comes to
emissions, and then be easy to maintain.
100
00:05:03,240 --> 00:05:05,860
How is Cummins innovating to
deliver this to customers?
101
00:05:06,300 --> 00:05:09,900
So maybe the biggest news is
for 2027, the NOX emissions,
102
00:05:10,020 --> 00:05:12,400
oxides of nitrogen drop another 80%.
103
00:05:13,100 --> 00:05:17,160
So over the last 25 years,
they were reduced by about 80%.
104
00:05:17,640 --> 00:05:21,240
Now we're doing that in three or four
years. So people ask how we do that.
105
00:05:21,440 --> 00:05:22,580
It's a lot of technology.
106
00:05:23,120 --> 00:05:28,100
So probably the biggest thing is we
have heaters at the inlets to both
107
00:05:28,180 --> 00:05:31,660
of the after treatment components,
the diesel particulate filter,
108
00:05:31,980 --> 00:05:33,120
the SCR catalyst,
109
00:05:33,480 --> 00:05:37,400
and that requires a 48 volt alternator
on the engine to drive those.
110
00:05:38,040 --> 00:05:41,250
So that's the majority
of our NOx reduction.
111
00:05:41,610 --> 00:05:46,450
There are also clean sheet design.
So both the X10 and X15 are new
112
00:05:46,510 --> 00:05:50,370
from the ground up, optimized based
on our experience with the X12,
113
00:05:50,870 --> 00:05:55,810
which was largely successful. So
the engine has gotten a lot cleaner.
114
00:05:56,150 --> 00:05:58,750
In addition, we've done a lot
of things for reliability.
115
00:05:59,150 --> 00:06:01,630
So now you'll find that
both of those engines,
116
00:06:01,690 --> 00:06:06,390
the X10 and X15 have a dual overhead cam.
They also have a rear gear
117
00:06:06,450 --> 00:06:11,430
train. So this just makes the engine
structure stronger to reduce leaks,
118
00:06:12,150 --> 00:06:17,150
keep vehicles in service. Another thing
would be the quick disk braking system,
119
00:06:17,250 --> 00:06:18,990
so disk brake for the rear axle.
120
00:06:19,550 --> 00:06:23,250
The big innovation there is the fact that
you can pull the rotor without having
121
00:06:23,310 --> 00:06:24,590
to disturb the wheel end.
122
00:06:24,960 --> 00:06:29,110
So not only does that give
us a faster service event,
123
00:06:29,170 --> 00:06:31,400
but it also improves the repair quality.
124
00:06:31,950 --> 00:06:34,290
Brilliant. A win-win overall
for all teams involved.
125
00:06:34,450 --> 00:06:37,230
What I'm hearing is that the fire
service doesn't just buy equipment.
126
00:06:37,610 --> 00:06:38,670
They rely on partners.
127
00:06:39,110 --> 00:06:41,950
So how is Cummins showing up for the
fire service beyond the engine and
128
00:06:41,990 --> 00:06:42,823
components?
129
00:06:42,890 --> 00:06:47,070
Yeah, it's truly a team effort. So we
start by working with a chassis builder,
130
00:06:48,490 --> 00:06:50,130
either it's custom or commercial.
131
00:06:51,170 --> 00:06:55,550
So we work with them to ensure that the
installation quality requirements are
132
00:06:55,570 --> 00:06:56,403
met.
133
00:06:56,850 --> 00:07:01,430
It then goes to a bodybuilder where
they're putting on all the compartments on
134
00:07:01,450 --> 00:07:02,930
the back and putting that together.
135
00:07:03,010 --> 00:07:06,990
We also work with them to help them with
programming and those types of things.
136
00:07:07,190 --> 00:07:08,040
Once it gets into ...
137
00:07:08,190 --> 00:07:12,870
We also count on a dealer network
that looks after these vehicles
138
00:07:13,070 --> 00:07:14,630
and our distribution systems.
139
00:07:14,690 --> 00:07:19,290
So Cummins has about 3,500
locations that can sell parts for
140
00:07:19,370 --> 00:07:20,210
automotive engines.
141
00:07:20,430 --> 00:07:25,120
And we have over 2,000 locations that
can do warranty service on these.
142
00:07:25,320 --> 00:07:26,520
And this is in North America or-.
143
00:07:27,230 --> 00:07:30,240
This is in North America.
Wow. 2000 in North America.
144
00:07:30,560 --> 00:07:33,800
And that's the majority of our
business. When we get overseas,
145
00:07:34,200 --> 00:07:35,840
the types of apparatus vary.
146
00:07:37,010 --> 00:07:37,560
That totally makes sense.
147
00:07:37,560 --> 00:07:42,280
The other thing I would add is we're
looking at new solutions that also keep
148
00:07:42,360 --> 00:07:46,320
equipment and service less trips
to the shop. So for example,
149
00:07:46,880 --> 00:07:50,040
Cummins Acumen is a
telematics system. Basically,
150
00:07:50,200 --> 00:07:54,960
that means it's communicating
information from the engine back to us
151
00:07:55,800 --> 00:07:57,800
so that we can provide repair guidance.
152
00:07:58,360 --> 00:08:02,040
We can also do things over time
to do over the air calibrations.
153
00:08:02,680 --> 00:08:04,670
We can do remote diagnostics.
154
00:08:04,970 --> 00:08:08,840
So these are all huge things to keep
the vehicle in the station and not in a
155
00:08:08,880 --> 00:08:09,640
repair shop.
156
00:08:09,640 --> 00:08:10,040
Exactly.
157
00:08:10,040 --> 00:08:13,000
It's nice that we'll have a pulse on
things so we're not always being reactive
158
00:08:13,080 --> 00:08:14,320
when the customers come to us.
159
00:08:14,720 --> 00:08:17,800
It's like we've got to pull so we can be
proactive and just make sure that they
160
00:08:17,920 --> 00:08:20,560
don't have to be in there as
often, as frequently or as long.
161
00:08:20,840 --> 00:08:21,520
Exactly.
162
00:08:21,520 --> 00:08:25,040
Do you have any firefighter testimonials
based on what you've just said?
163
00:08:25,720 --> 00:08:28,120
It's always fun to go to trade shows.
164
00:08:28,280 --> 00:08:32,880
So whether it's FDIC or the
Lancaster County Fireman's
165
00:08:32,960 --> 00:08:36,200
Association Fire Expo,
hear a lot of stories.
166
00:08:36,440 --> 00:08:40,230
So a lot of firefighters are
amazed at the performance.
167
00:08:40,290 --> 00:08:42,030
So some say that there
shouldn't be a throttle pedal.
168
00:08:42,760 --> 00:08:46,090
It should just be an on/off switch
to accelerate as quickly as they can,
169
00:08:46,150 --> 00:08:50,170
but we hear a lot of positive comments,
especially around the performance.
170
00:08:50,270 --> 00:08:53,070
It's a testament to all the hard work
that goes into each of these products,
171
00:08:53,130 --> 00:08:53,450
right?
172
00:08:53,450 --> 00:08:54,283
Exactly.
173
00:08:54,290 --> 00:08:56,430
When you look at the next
generation of fire apparatus,
174
00:08:56,770 --> 00:08:58,970
what excites you the most about
where the technology is headed?
175
00:08:59,410 --> 00:09:01,030
It's really pretty exciting.
176
00:09:01,250 --> 00:09:05,430
I think we will continue to
see some benefits from AI,
177
00:09:05,890 --> 00:09:10,110
not only from a design perspective so
that we can optimize designs like we have
178
00:09:10,150 --> 00:09:11,370
with the X10 and X15,
179
00:09:12,390 --> 00:09:16,450
but also on how we monitor the
performance of those engines.
180
00:09:16,890 --> 00:09:18,210
Where have we had issues?
181
00:09:18,610 --> 00:09:23,170
We use our warranty data and we can
fold all of that into the new designs to
182
00:09:23,270 --> 00:09:24,750
make an even better engine.
183
00:09:24,930 --> 00:09:26,010
That is a recurring theme.
184
00:09:26,170 --> 00:09:30,130
AI just amplifying all of our efforts and
being able to get things to the market
185
00:09:30,190 --> 00:09:31,050
faster, essentially.
186
00:09:31,410 --> 00:09:35,010
If someone remembers one
thing about Cummins and fire
service after listening to
187
00:09:35,050 --> 00:09:36,790
this episode, what
would you want it to be?
188
00:09:37,370 --> 00:09:41,050
We want to build great products,
but we also want to support.
189
00:09:41,330 --> 00:09:45,650
So it's really important to us why we've
worked to develop so many dealers and
190
00:09:45,830 --> 00:09:49,870
our Cummins branches to be able
to support the fire service.
191
00:09:50,370 --> 00:09:51,610
So support is everything.
192
00:09:52,030 --> 00:09:53,550
Chris, thank you so much
for your time today.
193
00:09:53,790 --> 00:09:57,550
It's really cool to see what keeps those
trucks so dependable because for us,
194
00:09:57,610 --> 00:09:59,130
dependability isn't just important.
195
00:09:59,430 --> 00:10:02,350
It's essential and especially
for the fire service. All right,
196
00:10:02,450 --> 00:10:05,710
so what's the big idea for this episode?
When we talk about fire and rescue,
197
00:10:06,050 --> 00:10:08,050
we often think about the
sirens and the Chrome,
198
00:10:08,330 --> 00:10:10,970
but the real story is about
readiness and reliability.
199
00:10:11,250 --> 00:10:15,210
We've seen that today for Cummins. A
firetruck isn't simply just a vehicle.
200
00:10:15,650 --> 00:10:19,350
It's a rescue apparatus that firefighters
rely on during the worst day of
201
00:10:19,390 --> 00:10:22,190
people's lives. In an industry
where every second matters,
202
00:10:22,350 --> 00:10:23,970
Cummins isn't just an engine builder.
203
00:10:24,210 --> 00:10:27,850
We're providing confidence and reliability
so real heroes can get where they're
204
00:10:27,890 --> 00:10:30,890
needed safely and fast.
When lives are on the line,
205
00:10:31,450 --> 00:10:34,590
dependability isn't just a
technical spec. It's a promise.
206
00:10:35,170 --> 00:10:39,050
Thank you for listening to Power Onward.
Your support means the world to us.
207
00:10:39,770 --> 00:10:43,170
If you enjoyed this episode, please
don't forget to subscribe, rate,
208
00:10:43,250 --> 00:10:45,670
and review on your
favorite podcast platform.
209
00:10:46,290 --> 00:10:48,270
If you want to dig deeper
on what we covered today,
210
00:10:48,630 --> 00:10:51,250
check out the show notes for
additional links or go to
211
00:10:52,860 --> 00:10:56,950
Cummins.com/podcast. Until
next time, Power Onward.
212
00:11:02,410 --> 00:11:03,310
We're from Cummins,
213
00:11:03,770 --> 00:11:07,350
the company that's been innovating
toward the future for more than a hundred
214
00:11:07,410 --> 00:11:11,230
years. We're no strangers to
rapid change, global shifts,
215
00:11:11,370 --> 00:11:12,590
and economic uncertainty.
216
00:11:13,410 --> 00:11:17,730
We want to be your constant during
the energy transition. Whenever,
217
00:11:18,390 --> 00:11:21,930
wherever, forever. Power Onward.