Cat?� C1.5 Diesel Engine

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The Cat® C1.5 Industrial Diesel Engine is offered in ratings ranging from 20.9-30 bkW (28-40.2 bhp) @ 2200-3000 rpm. These ratings meet UN ECE R96 Stage IIIA emission standards. Applications powered by C1.5 engines include: Agriculture Tractors, Combines and Harvesters, Aircraft Ground Support, Bore/Drill Rigs, Chippers, Grinders, Compactors, Rollers, Compressors, Construction, Irrigation, Pumps, Turf, Landscaping, Mobile Earthmoving, Paving, Trenchers, Underground Mining, and Material Handling.

Pricing: Contact for Pricing Why we quote: Cat® machines are often configured to your job (attachments, hydraulics, cab options) and freight/taxes can vary by location. Request a quote to get accurate pricing based on your exact setup—typically within 1–2 business days.

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Payment Calculator Shop Parts Competitive Comparison

Maximum Power	40.2hp
Maximum Torque	82.4lb-ft @ 1800 rpm
Minimum Power	36.6hp
Rated Speed	3000 rpm

Emissions	UN ECE R96 Stage IIIA

Height	25.3in
Length	22.5in
Weight - Net Dry - Basic Operating Engine Without Optional Attachments	356lb
Width	20.3in

Aftertreatment	-
Aspiration	Naturally Aspirated (NA) or Turbocharged (T)
Bore	3.3in
Combustion System	Indirect Injection
Compression Ratio	22.5:1
Displacement	91in³
Engine Configuration	Inline 3, 4-Stroke-Cycle Diesel
Rotation from Flywheel End	Counterclockwise
Stroke	3.5in

Standard Equipment:

Inlet manifold with choice of inlets.

Alternator 12 volt 65 amp
Starter motor 12 volt
Glow plug starting aid

Belt-driven coolant pump
Coolant temperature switch
Choice of cooling fans

Naturally Aspirated: SAE No. 7 1/2 flywheel
Turbocharged: SAE No. 6 1/2 or SAE No. 7 1/2 flywheel
Naturally Aspirated: Choice of SAE No. 4 or standard backplate flywheel housing
Turbocharged: Choice of SAE No. 4 or SAE No. 5 or standard backplate flywheel housing

Fuel injection pump
Spin-on fuel filter
Electronic Shut-off Solenoid (ESOS)

Alternative oil fillers
Spin-on lube oil filter
Lube oil pressure switch
Lube oil sump

Cast iron, engine block
Cast iron exhaust manifold--side outlet
Cold start capability to -20° C (-4° F)
Gradeability 35° continuous
Paint: Caterpillar yellow, with optional colors available at request

Optional Equipment:

What Our Customers Are Saying About Us

Gregory Poole Equipment Company

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Based on 58 reviews

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Tom Corona

21:51 06 May 26

Rich Stidd

22:10 02 May 26

Carlos Virgilio Sauceda Rivera

20:55 23 Mar 26

John Karpathian

16:21 24 Jan 26

Clean store and great employees

Hunter Flaugher

12:56 06 Aug 25

Hydraulic pump shop is unmatched. I made the mistake of going somewhere else before bringing my pump here. These guys were more than helpful and friendly. Went out of their way to help me find a solution for my problem even when it didn’t benefit them. This is how businesses should be run. I won’t go anywhere else.

Brian Hrudka

16:45 12 Feb 25

Too bad Poole Cat Field Service is better at invoicing than actually getting my machines moving.

A prompt and courteous technician arrived, and correctly diagnosed two problems with my mini Ex. Thank you. I corrected those problems, but machine still did not work.

He diagnosed a fuel problem as a clogged filter, rather than a bad fuel pump which I managed to diagnose. I also figured out, via help on the internet, that the fuel shut-off solenoid was bad.

Machine runs fine now. So my advice is to check the internet, before letting Poole charge you $870 for a two hour field visit. And you can find a perfectly fine aftermarket fuel pump for $20 rather than the $250 that Poole charges... and it arrives faster,

Jacey Price

21:04 05 Dec 24

Need to teach a tech how to drive a service truck. Around 2:48 on highway 40 east, the truck pictured (plate ending in 8236) flew across 3 lanes of traffic to meet the Cleveland rd exit. Almost hit a semi and caused me to swerve with my children in the car. Glad making the exit was more important than children’s lives.