Category: Other Caterpillar Engine Parts: Support for Legacy and Specialty Caterpillar Platforms

Looking for parts for Caterpillar engines beyond the C15, 3406E, or C13? Highway and Heavy Parts supports a wide range of legacy and specialty Caterpillar engines with hard-to-find and service-critical components. From smaller C7 engines to larger C18 powerplants, we provide engine parts for construction, industrial, and power generation use cases.

We cover Caterpillar engines such as the C7, C9, C18, 3126, 3116, and more. These engines appear in everything from vocational trucks to marine vessels and stationary equipment.

What Parts Do You Carry?

You’ll find fuel injector cups, turbochargers, cylinder heads, piston kits, and inframe engine rebuild kits—plus gaskets, sensors, and fuel system components—available for less common Caterpillar engines. Our inventory is made up of aftermarket parts that meet or exceed OEM standards. This means if there are known issues with any Caterpillar parts, our aftermarket replacement parts are engineered to fix those issues.

What If I Don’t See My Engine Listed?

Contact our technical team. We can source many parts not listed online and help verify compatibility using your engine serial number.

Why Choose HHP for Rare Caterpillar Engine Support?

• Access to Legacy Components
• Compatibility Verification by Engine Experts
• Fast Shipping, Even for Hard-to-Source Parts

When your equipment runs on a specialized Caterpillar engine, we’re here with the parts and expertise you need.

FAQs for the Caterpillar Diesel Engine

1. What Caterpillar engines are included in this category?
   This includes the C7, C9, C18, 3126, 3116, and other legacy or specialty Caterpillar engines.
2. Can I get parts even if my engine isn’t listed?
   Yes. Our technical support team can source parts for many Caterpillar engines not listed online—just provide your engine serial number.
3. Are inframe engine rebuild kits available for Caterpillar C7 and C9 engines?
   Yes, we stock complete engine rebuild kits for mid-range engines like the C7 and C9, including turbochargers, pistons, and gaskets.
4. Are these parts suitable for off-highway equipment too?
   Absolutely. Many of these Caterpillar engines are used in construction, agricultural, and stationary power equipment.
5. How can I verify part compatibility for older engines?
   Use your engine serial number or consult our diesel technicians to match parts accurately to your application.