Description
Genuine Detroit Diesel OEM 23512307 is the silicone ECM mounting isolator (vibration bushing) used on the engine-mounted DDEC ECM for Detroit Series 50 and Series 60 engines. Eight isolators per ECM — one bushing fits each ECM-to-bracket stud. Provides vibration dampening and electrical isolation between the ECM heatsink and the engine block. Replaces 23502879. Sold individually.
Specifications
| Manufacturer | Detroit Diesel (Genuine OEM) |
|---|---|
| Part Number | 23512307 |
| Supersedes | 23502879 |
| Part Type | ECM Mounting Isolator (silicone vibration bushing) |
| Material | Silicone over steel sleeve |
| Outer Diameter | 19 mm (0.75 in) |
| Inner Diameter | 10.92 mm (0.43 in) |
| Engine Compatibility | Detroit Series 50; Detroit Series 60 (11.1L, 12.7L, 14.0L) |
| Quantity Required | 8 per ECM |
| Sold As | Each |
Cross References
This isolator replaces or is equivalent to the following part numbers:
- Detroit Diesel: 23512307, 23502879, DDE23512307, DDC23512307
- PAI Industries: 642024 (pack of 8); component of 642019 ECM Mounting Kit
- FP Diesel: FP-23512307, FP23512307
- Also known as: A-23512307, A23512307
Applications
This ECM isolator fits Detroit engines with engine-mounted DDEC ECMs:
- Detroit Series 60 11.1L — DDEC II, III, IV
- Detroit Series 60 12.7L — DDEC II, III, IV, V
- Detroit Series 60 14.0L — DDEC IV, V
- Detroit Series 50 8.5L — DDEC III, IV
Representative vehicles using these engines:
- Freightliner FLD, Classic, Century, Columbia, Coronado, Argosy
- Peterbilt 357, 377, 378, 379, 385, 386, 387 (S60 option)
- Kenworth T600, T660, T800, W900 (S60 option)
- International 9200, 9400, 9900 (S60 option)
- Western Star 4900, 5800 (S60 option)
- Transit buses with Detroit Series 50
Replace all eight isolators as a complete set when servicing the ECM — mixing old and new mounts unevenly loads the new bushings and accelerates failure. Torque ECM-to-engine mounting bolts to 23–27 N·m (17–20 lb·ft).
Verify your DDEC version and ECM bracket configuration before ordering. For an 8-pack, see PAI 642024.
