# Service bulletins for the 2018 ARBOC Spirit of Equess

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

4 bulletins from NHTSA, as of 2026-10-19.

- [AR882](/bulletins/11013688.md), 2025-02-05, Service bulletin: STRUCTURE:BODY. Complaint: Compressor mounting brackets are breaking. Cause: Design. Correction: Add gusset to compressor mounting bracket.
- [AR869](/bulletins/10162037.md), 2019-08-05, Service bulletin: STEERING; POWER TRAIN. AR869\-Spirit of Equess Gearbox Removal and Replacement. Complaint\-Driveline gearbox failure. Cause\-Component failure. Correction\-Removal and replacement of driveline gearbox. Affects 2018/2019 Spirit of Equess \(SOE\) buses.
- [AR864](/bulletins/10160867.md), 2019-06-06, Service bulletin: ELECTRICAL SYSTEM. AR864\-ARBOC Spirit of Equess CAC Harness Modification. Complaint\-Efan system on diesel bus found to have improper 12V power to radiator and CAC fans, causing unnecessary running at low temperatures that drain batteries. Cause\-Improper supply of 12v analog signal to fans in Grayson fan harness. Correction\-Field fix is to cut and insulate analog signal wire. Vehicles Affected are 3121, 3423, 3424, 3427, 3429, 3434, 3435. Labor Op Code is 0119801. Covered labor is 1 hour.
- [AR867](/bulletins/10159193.md), 2019-05-08, Service bulletin: SERVICE BRAKES, AIR. Air Brake Hose Replacement\-Complaint\-Flexible brake hose damage. Cause\-Hose between front air chambers and front brake valve making contact with axle on sharp turns. Correction\-Complete visual inspection and change fittings to adjust angles. Replace hose. Affects only buses 3121, 3423, 3424, 3429, 3427, 3434, 3435, 3436, 3466 and 3467

JSON: [/v1/vehicles/2018_arboc_spirit-of-equess/bulletins](/v1/vehicles/2018_arboc_spirit-of-equess/bulletins)

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