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Used OEM & Teardowns

2018 Polaris RZR S 900 4x4 Used Parts, Stock #3438

2018 Polaris RZR S 900 4x4 used parts now listed, including seats, fenders, axles, calipers and shocks. Shop by category or find other model parts.

3 min read
2018 Polaris RZR S 900 4x4 Used Parts, Stock #3438

PirateMX dismantled this 2018 Polaris RZR S 900 4x4 for 125 used parts, including engine, frame, roll cage, bed, body, drivetrain, brake and suspension pieces. Browse the available parts from this machine below.

81 parts from Stock #3438 currently listed

Available parts from this 2018 Polaris RZR S 900 4x4

The individual used parts from stock #3438 include the upper, lower and center engine cases, frame, roll cage, complete cylinder head with valves, ECU and complete bed.

Common replacement groups include Polaris RZR S 900 seat assemblies, front and rear fenders, Polaris RZR S 900 CV axles, brake calipers and bolts, bed plastic, and shocks and struts.

Available Parts

Polaris 2018 RZR S 900 Engine Upper Lower Center Cases Case 3438 x 2207371

Polaris 2018 RZR S 900 Engine Upper Lower Center Cases Case 3438 x 2207371

SKU: 327387

Condition: Used

$799.95$886.18

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Polaris 2018 RZR S 900 Frame Chassis 3438 x 1022386-458

Polaris 2018 RZR S 900 Frame Chassis 3438 x 1022386-458

SKU: 327570

Condition: Used

$749.95$856.97

*Calculated Freight $75-$1,500

Polaris 2018 RZR S 900 Roll Cage 3438

Polaris 2018 RZR S 900 Roll Cage 3438

SKU: 327571

Condition: Used

$499.95$555.74

*Calculated Freight $75-$1,500

Polaris 2018 RZR S 900 Engine Cylinder Head Complete W Valves 3438 x 3022798

Polaris 2018 RZR S 900 Engine Cylinder Head Complete W Valves 3438 x 3022798

SKU: 327384

Condition: Used

$399.95$454.46

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Polaris 2018 RZR S 900 Ignition CDI Box ECU 3438

Polaris 2018 RZR S 900 Ignition CDI Box ECU 3438

SKU: 327436

Condition: Used

$299.95$340.02

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Polaris 2018 RZR S 900 Complete Bed Assembly 3438  2636779

Polaris 2018 RZR S 900 Complete Bed Assembly 3438 2636779

SKU: 327466

Condition: Used

$274.95$313.69

*Calculated Freight $75-$1,500

Polaris 2018 RZR S 900 Super ATV Front A-Arm Set 3438 x

Polaris 2018 RZR S 900 Super ATV Front A-Arm Set 3438 x

SKU: 327479

Condition: Used

$249.95$284.87

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Polaris 2018 RZR S 900 Front Left Shock Suspension 3438  7044467

Polaris 2018 RZR S 900 Front Left Shock Suspension 3438 7044467

SKU: 327472

Condition: Used

$199.95$226.48

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Polaris 2018 RZR S 900 Exhaust Pipe Muffler 3438 x 1262365

Polaris 2018 RZR S 900 Exhaust Pipe Muffler 3438 x 1262365

SKU: 327459

Condition: Used

$199.95$224.12

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Polaris 2018 RZR S 900 Super ATV Rear A-Arm Set 3438

Polaris 2018 RZR S 900 Super ATV Rear A-Arm Set 3438

SKU: 327480

Condition: Used

$199.95$224.90

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Polaris 2018 RZR S 900 Engine Clutch Cover 3438 x 2634179, 2634863

Polaris 2018 RZR S 900 Engine Clutch Cover 3438 x 2634179, 2634863

SKU: 327451

Condition: Used

$149.95$170.16

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Polaris 2018 RZR S 900 Front Diff Differential Ring Gear Pinion 3438 PARTS

Polaris 2018 RZR S 900 Front Diff Differential Ring Gear Pinion 3438 PARTS

SKU: 327501

Condition: Used

$149.95$171.59

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Polaris 2018 RZR S 900 Right Passenger Side Rear Fender 3438 x 2635496-599

Polaris 2018 RZR S 900 Right Passenger Side Rear Fender 3438 x 2635496-599

SKU: 327468

Condition: Used

$124.95$142.01

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Polaris 2018 RZR S 900 Gas Fuel Tank 3438  2521436

Polaris 2018 RZR S 900 Gas Fuel Tank 3438 2521436

SKU: 327464

Condition: Used

$124.95$139.99

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Polaris 2018 RZR S 900 Left Driver Side Rear Fender 3438 x 2635495-599

Polaris 2018 RZR S 900 Left Driver Side Rear Fender 3438 x 2635495-599

SKU: 327467

Condition: Used

$124.95$139.84

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Polaris 2018 RZR S 900 Aftermarket Seat Slider Adjuster Set 3438

Polaris 2018 RZR S 900 Aftermarket Seat Slider Adjuster Set 3438

SKU: 327447

Condition: Used

$99.95$112.54

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Polaris 2018 RZR S 900 Rear Fender Flares 3438 x 5439766-070, 5439767-070

Polaris 2018 RZR S 900 Rear Fender Flares 3438 x 5439766-070, 5439767-070

SKU: 327469

Condition: Used

$99.95$113.15

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Polaris 2018 RZR S 900 Engine Crankshaft Crank Shaft 3438 PARTS 3022793

Polaris 2018 RZR S 900 Engine Crankshaft Crank Shaft 3438 PARTS 3022793

SKU: 327389

Condition: Used

$99.95$113.05

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Polaris 2018 RZR S 900 Front Right Shock Suspension 3438 PARTS 7044467

Polaris 2018 RZR S 900 Front Right Shock Suspension 3438 PARTS 7044467

SKU: 327473

Condition: Used

$99.95$111.65

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Polaris 2018 RZR S 900 Engine Camshaft Cam Shaft 3438 x 1204583, 1204584

Polaris 2018 RZR S 900 Engine Camshaft Cam Shaft 3438 x 1204583, 1204584

SKU: 327386

Condition: Used

$99.95$114.29

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Polaris 2018 RZR S 900 Front Fender Flares 3438 x 5439760-070, 5439761-070

Polaris 2018 RZR S 900 Front Fender Flares 3438 x 5439760-070, 5439761-070

SKU: 327470

Condition: Used

$89.95$100.52

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Polaris 2018 RZR S 900 Engine Flywheel W Starter Clutch 3438

Polaris 2018 RZR S 900 Engine Flywheel W Starter Clutch 3438

SKU: 327399

Condition: Used

$89.95$99.49

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Polaris 2018 RZR S 900 Rear Sway Bar 3438 x 5337080

Polaris 2018 RZR S 900 Rear Sway Bar 3438 x 5337080

SKU: 327461

Condition: Used

$84.95$97.61

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Polaris 2018 RZR S 900 12 x 8 Rear Wheel A 3438  1522230-655, 1522231-655

Polaris 2018 RZR S 900 12 x 8 Rear Wheel A 3438 1522230-655, 1522231-655

SKU: 327454

Condition: Used

$84.95$96.90

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Shop this machine by category

Other parts that fit the Polaris RZR S 900

If the part from stock #3438 is gone, check the broader Polaris RZR S 900 used parts selection and match the component by its OEM number and stated fitment.

You may find front and rear A-arm sets, a front left shock or a muffler among the used and new Polaris RZR S 900 parts there.

Shop the parts

Other parts that fit the RZR S 900

Condition notes for this 2018 Polaris RZR S 900 4x4

  • Engine cases: damaged.
  • Frame: the motor guard is bent, bolts are broken off, and it has rust.
  • Complete cylinder head with valves: damaged.

OEM numbers and fitment

Compare the OEM number on your existing part with the identifier for the component you need. A matching number helps narrow the choice, but confirm the year and model on that part's page before ordering.

PartOEM numberAvailability
Ignition Starter Solenoid4014655In stock from this machine
Fuel Rail W Injector2521068In stock from this machine
Crankshaft Position Sensor2411719In stock from this machine
Engine Intake Throttle Body1204455In stock from this machine
Gas Fuel Tank Pump2205502In stock from this machine
Ignition Coil4010425In stock from this machine
Gas Throttle Pedal4014042In stock from this machine
Front Rear Wheel Lug Nuts Set7547489In stock from this machine
Also listed to fitYears
Polaris RZR 9002014-2020
Polaris RZR S4 9002018
Polaris RZR Trail 9002015-2025
Polaris RZR Trail S 9002022-2025
Polaris RZR S 10002016-2019

Frequently asked questions

What parts came off the 2018 Polaris RZR S 900 4x4, stock #3438?

Stock #3438 supplied the used OEM takeoffs shown on this page, ranging from major assemblies to smaller repair pieces for the 2018 Polaris RZR S 900 4x4. Condition varies by component: the engine cases and cylinder head are damaged, while the frame has a bent motor guard, broken-off bolts and rust. Read the note on each part's page before ordering.

Which Polaris models and years are these parts also listed to fit?

Parts from stock #3438 are also listed to fit the Polaris RZR 900 from 2014-2020, RZR S4 900 for 2018, RZR Trail 900 from 2015-2025, RZR Trail S 900 from 2022-2025 and RZR S 1000 from 2016-2019. Fitment varies by part, so check fitment for your exact year, make and model before you order.

What should I compare when matching an OEM number or looking for other RZR S 900 parts?

Compare the number on your original part with the OEM number in the table above, then check the part name, fitment chart and condition note on its page. A matching number narrows the search but does not guarantee fitment across RZR trims or years. If the page does not give enough detail, ask PirateMX before ordering, and check fitment for your exact year, make and model.

Didn't find what you need from Stock #3438?

Browse all Polaris parts, or see every Polaris RZR S 900 4x4 part from our other donor machines, and our new Polaris RZR S 900 4x4 parts.

Check the year, make and model on each listing before you order.

Can't find it? Request a part and tell us exactly what you are looking for.

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