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M MATI

Front Differential Gearbox Assembly for Polaris Sportsman 400 500 Scrambler 500 Worker 500 Xplorer 250 400 1999-20041341323 1341276

Front Differential Gearbox Assembly for Polaris Sportsman 400 500 Scrambler 500 Worker 500 Xplorer 250 400 1999-20041341323 1341276

$482.00
$728.00 $482.00
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Brand Name: M MATI

Origin: Mainland China

For ATV Brand/Model: Polaris

Placement on Vehicle：Front Housing

Manufacturer Part Number： 

1341323  1341257   1341276   3233582  1341154   1341265

Package ：   Front Differential Assembly x1

Warranty：   1 Year

Condition：   New

🛠️ Installation Tips 

  • Oil Type is Critical: This differential uses a specialized "Hilliard Clutch" system. ONLY use Polaris Demand Drive Fluid or an equivalent specifically formulated for Polaris front gearcases. Using standard gear oil will cause the 4WD to fail or stay locked.

  • Flush the System: Before installation, ensure the front drive shaft splines are clean. Apply a small amount of waterproof grease to the splines to prevent them from seizing.

  • Check Electrical Connections: Ensure the electrical connector for the internal 4WD engagement coil is clean and tight. Use dielectric grease on the plug to prevent moisture from causing a short circuit.

  • Fill to Level: Fill the fluid only to the bottom of the fill plug threads. Overfilling can cause pressure build-up and blow out the oil seals.

  • Axle Seat Check: When inserting the CV axles, ensure the "C-clip" on the axle clicks firmly into place inside the new differential. A partially seated axle will cause leakages and gear damage.

Fit for following Polairs  ATV/UTV :    

Diesel 455 1999-2000
Worker 335 1999
Worker 500 1999-2000
Xplorer 250 2000-2002
Xplorer 400 1999-2002
Xplorer 500 1997
Sportsman 335 1999-2000
Sportsman 400 2001-2003
Sportsman 400 2004 (only A04CH42AA/AE/AG edition)
Sportsman 500 1996-2003 (ALL Edition)
Sportsman 500 HO 2004 (only A04CH50AA/AC/AE/AG edition)
Sportsman 500 RSE 1999-2001
Sportsman 500 6x6 2000-2008
Sportsman 500 HO 2001-2003
Scrambler 400 4x4 1998-2002
Scrambler 500 4x4 1998-2009
Ranger 500 6x6 1999
PTV 6X6 SERIES 10

🔍 Troubleshooting Guide

Issue Possible Cause Solution
4WD Won't Engage Incorrect oil or electrical fault. Ensure you used Demand Drive Fluid. Check the 4WD switch on the handlebar and the fuse. Test for 12V at the diff connector.
4WD Stays Locked Dirty oil or broken sprue carrier. Change the fluid; old or thick oil causes the rollers to stick. If the issue persists, the internal cage may be damaged.
Leaking Seals Overfilled fluid or damaged CV boot. Check the oil level. Ensure the CV axle is pushed all the way in. Inspect the seals for any nicks during installation.
Grinding/Popping Noise Worn CV joints or internal rollers. First, check your CV axles. If they are fine, ensure the differential is bolted securely to the frame; a loose diff causes misaligned drive angles.
Oil is Milky/Gray Water entry. This diff sits low; check the vent tube for cracks or clogs. If water enters, flush the fluid multiple times immediately.
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