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post #1 of (permalink) Old 01-02-2002, 12:03 PM Thread Starter
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Blazer motor upgrade on 95 YJ - Necessary?

I recently purchased a body tub from a 1995 YJ. All of the air intake and heater parts were included, including the heater motor and heater core. I was planning to to the Blazer upgrade, but the instructions on the web sight advised that the upgrade is for 78 - 90 CJ/YJ's. With a 95 heater motor, do I need the Blazer upgrade? Do the later YJ heater motors "blow" more air than the older style? Any advice would be greatly appreciated.

83 CJ-7,258,Weber,D44's F&R,W/C T-5,Dana 300 W/tera 4.0,AFW frame,
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post #2 of (permalink) Old 01-02-2002, 12:08 PM
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Re: Blazer motor upgrade on 95 YJ - Necessary?

My heater in my 95 YJ works unbelievably well, especially when compared to my old CJ motors...I wouldn't bother swapping it out for the blazer motor.

95 Wrangler Rio Grande...She's gettin there - I'm all about the 4 cyls
post #3 of (permalink) Old 01-02-2002, 12:21 PM
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Re: Blazer motor upgrade on 95 YJ - Necessary?

The GM Heater Motor is a very powerfull blower motor.

Go to the Autoparts Store and ask for an aftermarket blower motor for your year YJ an see if it matches one of the following numbers:

Vendor...............Part #
4 Seasons............35587
Siemens..............PM102E (This is the Maker of the motor)
Factory Air..........35587
YJ replacement.......PM102E

Fits, except for a long shaft

The above part numbers are for the GM Blower motor. I suspect that the aftermaket YJ blower motor would be the same. Check it out and see what you find and we'll all learn something.

Is it worth doing the upgrade? Humm... that's a great question seeing that you have the part already accessable, and it's used, an maybe gummed up and turning slow... or may not. Change the motor now and you have piece of mind.

How much is peace of mind worth to you?

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post #4 of (permalink) Old 01-02-2002, 09:00 PM
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Re: Blazer motor upgrade on 95 YJ - Necessary?

If it's the same as a 91, it's already a bigger motor and it's wired different. It has a power and a ground wire, the old motors are grounded through the case. They (the newer motors) are also more expensive.

87 Cherokee 4.0, 90 Wrangler 4.2, 95 Wrangler 2.5
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