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BPRATV will be closed on December 24th and 25th in observance of the Christmas holiday. We will have very limited operations from December 27th to December 31st for our annual cycle counts. Thank you for your patience and understanding. Additionally, we will be closed on January 1, 2025, for New Year's Day.
BPRATV will be closed on December 24th and 25th in observance of the Christmas holiday. We will have very limited operations from December 27th to December 31st for our annual cycle counts. Thank you for your patience and understanding. Additionally, we will be closed on January 1, 2025, for New Year's Day.

03-13 WR250F 83mm Big Bore Stroker Complete Built Redone Motor Engine 310cc

by BPRATV
Save 19% Save 19%
Original price $3,689.55
Original price $3,689.55 - Original price $3,689.55
Original price $3,689.55
Current price $2,999.99
$2,999.99 - $2,999.99
Current price $2,999.99
WORKS ON ALL '01-13 YAMAHA YZ250F and WR250F MODELS - REBUILT ENGINE!

Complete built 310cc big bore stroker motor
Used core bottom end - cases, transmission, counter balancer, hardware, etc. - all other parts below are new
New BPR 83mm cylinder
83mm Wiseco forged big bore piston
Nitrite coated piston rings
Chrome wristpin
Circlips
Hotrods +3mm stroker crankshaft assembly
Crank bearings
 Crank balancer bearings
Transmission bearings
Water pump bearing
Shift cam bearing
Clutch bearings
Cam chain
Cam chain guides
Gasket kit
Cometic 83mm MLS big bore head gasket
Seal kit 
Valve stem seals
K&N oil filter
NGK spark plug
Water pump impeller
K&N oil filter
Titanium head stud kit - LIFETIME WARRANTY*
Complete assembly comes with 6 month warranty*
Runs on pump or race gas
Can be used with stock or modified head
Only what is in photos and listed above are included, any other parts needed can be added, contact us for details and pricing

We are BPRATV, offering you the best in parts and service for over 20 years.  If you need your vehicle repaired, parts, or you just have technical questions call, email, or come see us at our Upland, CA location Mon to Fri 7am to 4pm, PST.  We accept payment via credit card, Paypal, Venmo, Cash App, and in person via cash or check (once cleared). 

PRICES AND LISTINGS ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE.

REPAIR SHOPS AND DEALERS CONTACT US TO SET UP AN ACCOUNT AND GET A DISCOUNT ON ALL YOUR ORDERS

WE SHIP WORLDWIDE AND WE PROCESS ORDERS 7 DAYS A WEEK. TAMBIEN HABLAMOS ESPANOL!

*Interchangeable part: We stock the same parts from different manufacturers so that when back orders occur we have a part that is equal in quality and cost to send, preventing what can sometimes be long waits.  This would be the only reason your order might vary slightly from the description, and the part that is subbed will always be comparable quality. If you only want a specific brand just ask and we will let you know if it is out of stock and for how long.

**Returns: We accept returns for part or all of your order within the first 30 days.  Refunds are only granted for parts that are returned 100% complete, brand new, in the original packaging.  Once a part has been installed or prepped for installation it is no longer eligible for return.

**Warranty: This product is NOT DIY.  Over 99% of people in the world are not qualified to build an engine, and it is the responsibility of the person assembling and tuning the engine to make sure all the parts are correct and work properly.  We ALWAYS STRONGLY recommend work be done by a qualified, experienced mechanic.  Any part(s) for which a warranty claim is made must be sent back to us for inspection, NO EXCEPTIONS.  We cannot warranty anything based on photos, emails, phone calls, what you read online alone, or what another mechanic says the problem is alone. Warranty does not cover any failure that is a result of improper installation, tuning, break in, lack of maintenance, or misuse. 

Feedback: Positive feedback is greatly appreciated.  We work very hard to maintain a high feedback rating, and we want all of our customers to be happy.  Receiving positive feedback when an order goes the way it is supposed to is a huge help.  If you do not feel we deserve positive feedback PLEASE contact us prior to leaving feedback and we will do what is needed to help you feel as "positive" as possible about your experience. Please work with us and we will ALWAYS work with you.

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