SU2572-0RX, Renix Super Kit, Ultra-Flex Rubber

Your Price: $319.95

Part Number: SU2572-0RX

Made by : Brown Dog Industries

Includes: Everything shown plus 2 stickers

Shipping: Free - USA & APO/FPO (military) addresses

Warranty: Lifetime - Except replaceable bushings

Made In: USA - Including all components

Note: Includes Renix Anti-Knock Sensor Adapter

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Super Kit: Includes Super Engine Brackets and Ultra-Flex Rubber Motor Mounts for 1987-1990 XJ and MJ with Renix Fuel Injection 4.0L Engine.

Change engine mount system never have to do it again.

Super Strong Engine Brackets - Uses 7 Thread Bosses, Left; 8 Thread Bosses, Right.
Includes Anti-Knock Sensor Adapter (see next picture above) for use with Renix fuel injection system on 4.0L engines sold in Cherokee XJ and Comanche MJ.
High Performance Ultra-Flex Rubber Motor Mounts - Stock Height.
All Grade 8 Hardware or 10.9 Metric Equivalent.

Super Engine Brackets virtually eliminate offroad torsional forces snapping bolts or ripping the bracket from the case. Featuring more attach points than the original brackets, the design spreads engine block attachment stress loads. Left bracket utilizes seven engine thread bosses, four more than the original. Right bracket features eight bolts, five more than the original. Double-welded, all-steel construction for extra strength. No engine block modification necessary. Fits up to existing 4.0L Jeep engine block bolt pattern. Includes Anti-Knock Sensor Adapter for use with Renix Anti-Knock Sensor.

High Performance Ultra-Flex Rubber Motor Mounts feature all-steel, double-welded construction. Stock-height, these are high-strenth replacements for the originals. Designed to stand up to the toughest trails Arizona can dish out. (Sorry Utah, we can't stand the cold.) When compared to the originals and most others, these are a substantial upgrade. The original mounts, designed for street driving, simply won't stand up to the torsional stress experienced offroad.

Featuring Ultra-Flex Rubber bushings, these Motor Mounts will dampen some vibration. Want a sportier feel for your rig? Select Classic Polyurethane Motor Mounts in the S2572-0RX kit instead. Not sure whether to select Classic Polyurethane or Ultra-Flex Rubber? Compare here.

Ships with Grade 8 Hardware (or 10.9 metric equivalent) required to bolt engine brackets to existing engine block bolt pattern. Also includes new Grade 8 thru-bolts, lock nuts and washers for securing brackets to motor mounts.

Looking for Motor Mount Lifts? Super Kits, SU2572-1RX includes 1" Motor Mount Lifts (MMLs) with Super Engine Brackets. MMLs are often used to correct driveline angle problems and/or raise engine for more ground clearance. Super Brackets feature unique lipless bracket design will not interfere with installation of 1" MMLs. If considering MML on a Cherokee, be sure the check transmission bell housing to floor clearance. (This is not an issue when installing stock height MM, only when installing 1" MMLs)

Application Notes:

1987-1990 4.0L Comanche MJ
1987-1990 4.0L Cherokee XJ

Installation Notes

In preparation for installation, we suggest using brake fluid cleaner or PB Blaster to clean out the additional engine block thread bosses.
A copy of the installation instructions showing which holes take which bolts will be included with your bracket. We can also email it ahead of time when requested.

Free shipping - USA and APO/FPO addresses using USPS 2-3 day service. International customers pay reasonable shipping fee. Never a "handling charge."