Brian Crower
Brian Crower Polaris XP Turbo/XP 1000 Valve Stem Seals Guides BC3990
Brian Crower Polaris XP Turbo/XP 1000 Valve Stem Seals Guides BC3990
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Genuine Brian Crower performance component.
BC valve stem seals are designed for standard aftermarket valve guides like BC3965.
The seals allow a carefully defined amount of engine oil from the cylinder head into the combustion chamber—to lubricate the rotating valve stem in the valve guide.
BC valve stem seals are produced from high performance materials for increased part life and lower wear.
Vehicle Fitment
- 2014–2027 Polaris RZR XP
- 2014–2027 Polaris RZR XP 1000
- 2014–2027 Polaris RZR XP 4
- 2014–2027 Polaris RZR XP 4 1000
Please confirm the engine code against your build before ordering.
Specifications
- Brand: Brian Crower
- Manufacturer Part Number: BC3990
- Item Type: Valve Stem Seals
- Placement: Intake & Exhaust
- Condition: New
- Shipping Weight: 2.0 lb
Manufacturer Part Number: BC3990
Images are for illustrative purposes only. Actual product may vary.
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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Manufacturer's Warranty — Brian Crower
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Manufacturer's Warranty — Brian Crower
Brian Crower does not provide any express warranty, and disclaims any implied warranty of merchantability or fitness for a particular purpose, on the products it sells — the company cites the nature of performance applications and its lack of control during installation and operation. Brian Crower is not liable for special, incidental or consequential damages, including damage to or loss of other property or equipment, loss of profits or revenue, the cost of purchased or replacement goods, or claims made by the purchaser's own customers. Any coverage is void where the part has been physically altered, improperly installed or used, damaged through no fault of Brian Crower, or used for a purpose other than the one it was designed for, and Brian Crower does not warrant the performance of its products. Brian Crower reserves the right to make product improvements or changes without notice. These products are designed primarily for off-highway use — check state and federal law and emissions regulations before fitting. If a part arrives defective or incorrect, contact us and we will work the claim with the supplier on your behalf.
Warranty terms are set by the manufacturer and may change. Contact us if you need help with a warranty claim.

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