Polaris MRZR-D4

[nickd]

Does anyone know the purpose for the bracket in Lawdogs picture above showing the cargo net behind the rear seats? The bracket in question is located on the back deck right behind the rear seats. It is also used on both the 4 seat and 2 seat gas models.

 

[Lawdog734]

The best I can figure is for the seat mounting kit or to secure a stretcher?

 

[publicenema]

Does anyone know the purpose for the bracket in Lawdogs picture above showing the cargo net behind the rear seats? The bracket in question is located on the back deck right behind the rear seats. It is also used on both the 4 seat and 2 seat gas models.

Which bracket?

the aluminum narrow strip ones with a bunch of holes is for cargo securement, I can't remember the brand name but knockoffs are all over calling them L-track rails.

The other brackets that poke the back of the seats with the pins for them are to secure NATO spec litters

 

[aceecaus]

The L-Tracks on the MRZR are the aircraft grade L-Tracks if you wanted the same exact ones. You can get those HERE.

 

[gottaluvit]

Does anyone know if the rear differential is unlockable? Mine seemed to be permanently locked however the display shows it only as the right rear engaged and it has eaten another rear axle. Civi models do unlock but they also have a switch.

 

[publicenema]

Does anyone know if the rear differential is unlockable? Mine seemed to be permanently locked however the display shows it only as the right rear engaged and it has eaten another rear axle. Civi models do unlock but they also have a switch.

Looking at the breakdown of the main case, I don't see a differential anywhere. The only polaris's that have an unlockable rear axle to my knowledge are those equipped with a turf mode. I can check the service manual later but I've never know the rear axle to not chirp on these. These are made for off-road use, so avoid tight circles on pavement or steer with the throttle.

 

[gottaluvit]

Looking at the breakdown of the main case, I don't see a differential anywhere. The only polaris's that have an unlockable rear axle to my knowledge are those equipped with a turf mode. I can check the service manual later but I've never know the rear axle to not chirp on these. These are made for off-road use, so avoid tight circles on pavement or steer with the throttle.

Thank you. I saw no mention of it in the repair manual either. Time to order one of the heaviest made out there, and change my driving habits.

 

[gottaluvit]

I didn't take any pics, but Cobra Axles in Houston made me a spec rear axle for the MRZR-D4. The fit is exactly like the OEM axle and it's definitely beefy.

While the Rhino 2.0 may also fit and will save you a few bucks, it's nice to know that there are options out there in the event that we need spares.

Cobra Axles Link

I ordered one from Cobra axles. That one should last longer!

 

[rcameron]

Ok, today i went back to the original seats (bottom section) with a polaris 900 back rest. New upholstery as well. The original paddle style back rest were unconfortable and the RZR 1000 pro seats i installed previously were too big and space was limited.

Thanks for all the help and information you're sharing, I've had my 2017 Mrzr for a bout 2 years now. Did you have that top made?

 

[usmcav8tr]

Finally got my hands on an MRZR-D4 and man is it fun. I had originally intended to strip it all down and restore it, but I think I'm going to leave it as-is. It looks like honest wear without signs of any real abuse.

After checking fluid levels and the belt/clutch conditions, I took it and had a little bit of fun with it. Everything runs great, but the shocks definitely need to be rebuilt. I've thought about respringing them myself, but I know that the right answer is to have them rebuilt.

The 28" tires aren't bad, but I've given some thought to stepping up to the 30" or even 32" version of the stock BFG tire. Has anybody played around with a slightly bigger tire?

View attachment 949434

I put some 30 inchers on mine. I had to get some spacers for the rear as they were going to rub on the shock springs.

 

[Lawdog734]

I put some 30 inchers on mine. I had to get some spacers for the rear as they were going to rub on the shock springs.

Very cool - any pics?

 

[usmcav8tr]

Don't have any full on side pics. These are System 3 XTR370 tires.

 

[Gcelevator]

Polaris number for a 2017 MRZR4 diesel drive belt is 3211225 ( as well as 2018+)

Applicable model numbers are MBBVFED1MA/XA, M17VFED1MA/EX, M18VDED1MN

Hi @publicenema. Do you still have access to the part numbers? I am looking for the engine starter part number, if you could help. There are many variants of the kohler engine. Thanks.

 

[Gcelevator]

Thanks for all the help and information you're sharing, I've had my 2017 Mrzr for a bout 2 years now. Did you have that top made?

Yes, i believe it is ATI, the original manufacturer of the molle top. You have to call them to order. Mine are already rotten again, and the cost was like $1,600

 

[NoRoadtrippin]

Hey gents (and gals, maybe?). Making my first post. Been reading this thread for a bit and appreciate all the insight.

My D4 arrived a month or two ago and seems to be running fairly well so far. Just been tooling around our land a bit. Nothing crazy.

Just ordered filters for it from the spreadsheet here and plan to swap the oil this weekend.

Other things that currently annoy me are an intermittent squeal from one of the belts, and a persistent rattle from the tailgate as the rubber bumpers are dry rotted for sure.

I'd say the biggest thing we notice is a hesitation in acceleration going forward or reverse. You have to push the pedal for a second or two before it will catch and take off. And if you push too hard, it will take a big lurch into motion rather than being smooth.

 

[B3.3T]

Hey gents (and gals, maybe?). Making my first post. Been reading this thread for a bit and appreciate all the insight.

My D4 arrived a month or two ago and seems to be running fairly well so far. Just been tooling around our land a bit. Nothing crazy.

Just ordered filters for it from the spreadsheet here and plan to swap the oil this weekend.

Other things that currently annoy me are an intermittent squeal from one of the belts, and a persistent rattle from the tailgate as the rubber bumpers are dry rotted for sure.

I'd say the biggest thing we notice is a hesitation in acceleration going forward or reverse. You have to push the pedal for a second or two before it will catch and take off. And if you push too hard, it will take a big lurch into motion rather than being smooth.

Replace the belt and check both clutches for wear. Blowing out entire housing with air is a good idea, too. The lurching is normal.

 

[Gcelevator]

Replaced the starter last week as it went bad, tatally diferent now. The part i bought was rarelecreical prior to oulling the part out and it fits perfectly. The original starter is a Bosch 1005 821194 RAREELECTRICAL New Starter Motor Compatible with Kohler Marine Application with Ldw 1003 Diesel 5840147 5840224 5840147 5840224