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
SKU: 327387
Condition: Used
FREE Shipping
Polaris 2018 RZR S 900 Frame Chassis 3438 x 1022386-458
SKU: 327570
Condition: Used
*Calculated Freight $75-$1,500
Polaris 2018 RZR S 900 Roll Cage 3438
SKU: 327571
Condition: Used
*Calculated Freight $75-$1,500
Polaris 2018 RZR S 900 Engine Cylinder Head Complete W Valves 3438 x 3022798
SKU: 327384
Condition: Used
FREE Shipping
Polaris 2018 RZR S 900 Ignition CDI Box ECU 3438
SKU: 327436
Condition: Used
FREE Shipping
Polaris 2018 RZR S 900 Complete Bed Assembly 3438 2636779
SKU: 327466
Condition: Used
*Calculated Freight $75-$1,500
Polaris 2018 RZR S 900 Super ATV Front A-Arm Set 3438 x
SKU: 327479
Condition: Used
FREE Shipping
Polaris 2018 RZR S 900 Front Left Shock Suspension 3438 7044467
SKU: 327472
Condition: Used
FREE Shipping
Polaris 2018 RZR S 900 Exhaust Pipe Muffler 3438 x 1262365
SKU: 327459
Condition: Used
FREE Shipping
Polaris 2018 RZR S 900 Super ATV Rear A-Arm Set 3438
SKU: 327480
Condition: Used
FREE Shipping
Polaris 2018 RZR S 900 Engine Clutch Cover 3438 x 2634179, 2634863
SKU: 327451
Condition: Used
FREE Shipping
Polaris 2018 RZR S 900 Front Diff Differential Ring Gear Pinion 3438 PARTS
SKU: 327501
Condition: Used
FREE Shipping
Polaris 2018 RZR S 900 Right Passenger Side Rear Fender 3438 x 2635496-599
SKU: 327468
Condition: Used
FREE Shipping
Polaris 2018 RZR S 900 Gas Fuel Tank 3438 2521436
SKU: 327464
Condition: Used
FREE Shipping
Polaris 2018 RZR S 900 Left Driver Side Rear Fender 3438 x 2635495-599
SKU: 327467
Condition: Used
FREE Shipping
Polaris 2018 RZR S 900 Aftermarket Seat Slider Adjuster Set 3438
SKU: 327447
Condition: Used
FREE Shipping
Polaris 2018 RZR S 900 Rear Fender Flares 3438 x 5439766-070, 5439767-070
SKU: 327469
Condition: Used
FREE Shipping
Polaris 2018 RZR S 900 Engine Crankshaft Crank Shaft 3438 PARTS 3022793
SKU: 327389
Condition: Used
FREE Shipping
Polaris 2018 RZR S 900 Front Right Shock Suspension 3438 PARTS 7044467
SKU: 327473
Condition: Used
FREE Shipping
Polaris 2018 RZR S 900 Engine Camshaft Cam Shaft 3438 x 1204583, 1204584
SKU: 327386
Condition: Used
FREE Shipping
Polaris 2018 RZR S 900 Front Fender Flares 3438 x 5439760-070, 5439761-070
SKU: 327470
Condition: Used
FREE Shipping
Polaris 2018 RZR S 900 Engine Flywheel W Starter Clutch 3438
SKU: 327399
Condition: Used
FREE Shipping
Polaris 2018 RZR S 900 Rear Sway Bar 3438 x 5337080
SKU: 327461
Condition: Used
FREE Shipping
Polaris 2018 RZR S 900 12 x 8 Rear Wheel A 3438 1522230-655, 1522231-655
SKU: 327454
Condition: Used
FREE Shipping
Shop this machine by category
- Body Parts(422)
- Engines & Parts(247)
- Starters(96)
- Crankshafts(6)
- Timing(46)
- Engine Cases(17)
- Flywheels & Bolts(13)
- Oil Pans(23)
- Engine Motor Mounts(17)
- Connecting Rods & Pins(8)
- Cylinder Head Nuts & Bolts(1)
- Drivetrain(138)
- Electrical Components(246)
- Suspension & Steering(63)
- Steering Components(114)
- Transmission & Parts(52)
- Primary Clutch(14)
- Frame & Components(17)
- Engine Cooling(107)
- Radiators(45)
- Oil Coolers(12)
- Overflow Tanks(10)
- Brakes(120)
- Wheels & Rims(15)
- Fuel Systems & Delivery(53)
- Lighting & Gauges(63)
- Foot Controls Levers & Guards(41)
- Pedals(41)
- Wheels Tires & Tubes(25)
- Lug Nuts & Studs(23)
- Exhaust Systems & Parts(6)
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.
| Part | OEM number | Availability |
|---|---|---|
| Ignition Starter Solenoid | 4014655 | In stock from this machine |
| Fuel Rail W Injector | 2521068 | In stock from this machine |
| Crankshaft Position Sensor | 2411719 | In stock from this machine |
| Engine Intake Throttle Body | 1204455 | In stock from this machine |
| Gas Fuel Tank Pump | 2205502 | In stock from this machine |
| Ignition Coil | 4010425 | In stock from this machine |
| Gas Throttle Pedal | 4014042 | In stock from this machine |
| Front Rear Wheel Lug Nuts Set | 7547489 | In stock from this machine |
| Also listed to fit | Years |
|---|---|
| Polaris RZR 900 | 2014-2020 |
| Polaris RZR S4 900 | 2018 |
| Polaris RZR Trail 900 | 2015-2025 |
| Polaris RZR Trail S 900 | 2022-2025 |
| Polaris RZR S 1000 | 2016-2019 |
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.












































