Synergy 8251 - Jeep YJ / XJ / TJ 4.0L Motor Mount Kit User Manual
8251 yj / xj / tj motor mount, Parts list, Installation
SYNERGY MFG. 870 INDUSTRIAL WAY, SAN LUIS OBISPO, CA (805) 242-0397
8251 YJ / XJ / TJ MOTOR MOUNT
GENERAL NOTES:
These instructions are also available on our website; www.synergymfg.com. Check the website before
you begin for any updated instructions and additional photos for your reference.
These motor mounts are a bolt on installation for YJ, XJ, and TJ Jeeps with the 4.0L inline motor.
PARTS LIST:
8251 YJ / XJ / TJ MOTOR MOUNT
(2) 825101 YJ / XJ / TJ 4.0L motor mount (assembled w/ bushings and inner sleeve)
(2) 3/8-16 UNC x 1.0” long bolts
(2) 3/8-16 UNC stover nuts
(4) 3/8” flat washers
Parts / Tools Needed to complete installation:
Basic simple hand tools.
4-1/2” angle grinder with grinding / sanding disc (On some applications)
APPROXIMATE INSTALL TIME: 1-2 HOURS
INSTALLATION:
1) Installation of this motor mount kit is best done one side at a time. These instructions cover an install on
a 1989 Jeep XJ. Installation will start on the driver side of the vehicle.
Start by removing the factory air box.
Use an engine crane of jack with a block of wood to safely take some weight off one side
of the motor. See picture below.