23532554 | Detroit Diesel 12.7L Inframe Overhaul Rebuild Kit – DDEC 4

OE Replacements: 23532554, 23532577, R23532577

Fits: Detroit Diesel Series 60 12.7L Engines with DDEC IV Electronic Control Systems

Complete Inframe Rebuild Kit for Detroit 12.7L DDEC IV Engines

Restore your Detroit Diesel Series 60 12.7L engine to peak performance with this premium Inframe Overhaul Rebuild Kit, engineered for DDEC IV platforms. Whether you’re tackling a full inframe rebuild or preventative maintenance, this kit delivers the exact components you need for dependable performance, long engine life, and optimal fuel efficiency.

This kit includes genuine-quality replacement parts, matched for the Detroit Diesel DDEC 4 configuration. Built to withstand the demands of heavy-duty trucks and vocational equipment, this rebuild kit ensures proper fitment and OEM-level reliability at a fraction of dealership pricing.

Inframe Rebuild Kit Contents:

Key Features & Benefits

• OEM-Spec Components: Precisely engineered for Detroit Diesel 12.7L DDEC 4 engines

• Full Inframe Solution: Includes cylinder kits, main/rod bearings, head gasket set, cam bearings, head bolts, and injector O-rings

• Heavy-Duty Durability: Built with high-tensile materials to handle long hauls and high engine loads

• Seamless Fitment: Guaranteed compatibility with DDEC IV configurations—no modifications required

• Improved Compression & Oil Control: Articulated piston design helps restore original engine power and fuel efficiency

Engine Compatibility:

• Detroit Diesel Series 60 12.7L

• DDEC IV Electronic Systems

• Suitable for on-highway trucks, buses, and vocational applications running 12.7L Series 60 engines

Why Choose HDKits?

At HDKits, we offer top-tier diesel engine rebuild kits backed by expert support, fast shipping, and unmatched value. Our kits are carefully curated for your engine’s serial and ECM configuration—no guesswork, no hassle. Thousands of professional rebuilders trust us for their Detroit Diesel inframe kits—you should too.

Fast Shipping | USA-Based Support | Built for Performance

Get your rig back on the road with confidence.
Order your Detroit 12.7L DDEC 4 Inframe Kit today!

FAQs

Q1: Will this kit fit a 14L Detroit engine?
No, this specific kit is designed only for the 12.7L Series 60 DDEC IV engine. The 14L engine requires different cylinder kits and bearings.

Q2: Do I need to machine my block when using this kit?
If the liners or block surfaces are worn or out of spec, machining is recommended. Always inspect your block before installation.

Q3: Are these parts OEM or aftermarket?
We supply premium aftermarket parts that meet or exceed OEM specifications, providing the same durability and fit at a lower cost.