Skip to content
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.

06+ TRX 450R 450ER 101mm Big Bore Cylinder 520cc Complete Top End Rebuild Kit

by BPRATV
Save 25% Save 25%
Original price $929.50
Original price $929.50 - Original price $929.50
Original price $929.50
Current price $699.99
$699.99 - $699.99
Current price $699.99
FITS ALL 06+ TRX450R and TRX450ER
    • BPR 101mm big bore cylinder*
    • Wiseco 101mm 12.5:1 Forged big bore piston
    • Piston made in USA, forged, and Armorglide coated
    • Cometic top end gasket kit
    • Cometic big bore MLS head gsaket
    • Valve stem seals
    • Maxlock TITANIUM stud kit - LIFETIME WARRANTY*!
    • Timing chain
    • Stickers

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

    DO YOU MAKE A LIVING WORKING ON BIKES? ARE YOU A SHOP OR DEALER?  IF SO CONTACT US ABOUT OUR DEALER PROGRAM THAT GIVES YOU DISCOUNTS ON EVERYTHING WE SELL!

    Payments:  We accept all forms of traditional and online payment methods available – Cash, MC, AMEX, VISA, DISC, PayPal, Venmo, Cash App, among others.  Payment can be made online or over the phone.  PRICES ARE SUBJECT TO CHANGE AND LISTINGS MAY BE REVISED AT ANY TIME WITHOUT NOTICE.

    We are BPRATV, located at 1538 Howard Access Road, Suite A, Upland, CA 91786.  Visit us 7am to 4pm, Monday thru Friday, PST.

     Returns: Please check your order completely when you receive it and contact us if there is an issue.  99% of problems can be easily solved without returning the entire order.  We accept returns within the first 30 days.  If you are returning an order because buyer “Changed Mind” it is subject to a 10% restocking fee plus a deduction for our cost shipping the order to you.  Orders must be sent back 100% complete and all parts must be brand new, never installed, in the original packaging to receive a refund for them.  Once items have been modified, installed, or used in any way they are not eligible for return.  It is the buyer’s responsibility to ensure returned parts arrive to us in the same condition they were when they left our facility.  For more info about returns see the eBay Return Policy. 

     *Warranty: THE CYLINDER IN THIS LISTING REQUIRES CASE BORING.  We stand behind all parts we sell 100%.  If after installation there is an issue contact us for a warranty return.  This product is NOT DIY.  Over 99% of people in the world are not qualified to build an engine. We ALWAYS STRONGLY recommend parts be installed by a qualified, experienced mechanic.  Warranty does not cover failure that is a result of improper installation, tuning, break in, or misuse.  For any warranty to be considered the part(s) in question must first be sent back to us for inspection.  We do not warranty parts based on phone calls, photos, emails or another mechanic's assessment alone.  It is the responsibility of the person assembling and tuning the parts to make sure they work correctly.  STUD WARRANTY: If for any reason a stud fails during use, not installation, we will send a complete new stud kit.  No other parts or any labor are included, and it can not be converted to a refund or discount on any order.  Studs must be returned to us for inspection first. 

    Feedback: Positive feedback is greatly appreciated.  We have changed the way we do business in response to customer concerns and 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 just contact us and we will do what is needed to help you feel as "positive" as possible about your experience.  Also, we want information from customers when their experience is less than desirable so we know what areas need improvement the most.  Please work with us and we will ALWAYS work with you.


    Compare products

    {"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

    Select first item to compare

    Select second item to compare

    Select third item to compare

    Compare