• Contact us: 800-969-7501
  • We'll ship today if ordered in:
    1 3 HR : 4 2 MIN : 4 5 SEC
    Shipping Cutoff Times
    Shipping Type Order By
    Standard Ground 8:00pm CST
    UPS Three Day Select 8:00pm CST
    UPS Second Day Air 8:00pm CST
    UPS Next Day Air Saver 4:00pm CST
    UPS Next Day Air 4:00pm CST
    USPS Parcel Select 6:00pm CST
    USPS Priority Mail 6:00pm CST
    FedEx Economy 3:00pm CST
    FedEx Standard 3:00pm CST
    FedEx Priority 3:00pm CST
    Canada Postal Service 11:30am CST

    Orders placed during the weekends or the following holidays will ship the next business day.

    • New Years Eve
    • New Years Day
    • Christmas Eve
    • Christmas Day
    • Memorial Day
    • Independence Day
    • Labor Day
    • Thanksgiving Day
    Click for more details.
  • As low as 0% APR for up to 12 months with affirm
Dennis Kirk Dennis Kirk Inc.
    Welcome!
    Sign in

    Caps lock is on

    Forgot password?
    Create an Account
    Order Status Find a registry Gift Cards Help/Contact
    0

    Your Cart

    Your shopping cart is currently empty.
    Harley Motorcycle UTV ATV Dirt Bike Snow
    Harley Parts back
    Shop By
    Popular Models
    Harley Accessories back
    Shop By
    Popular Models
    Harley Tires back
    Tire Parts & Accessories
    Shop By
    Featured Brands
    Harley Exhaust back
    Harley Exhaust Parts & Accessories
    Shop By
    Featured Brands
    Helmets back
    Helmet Parts & Accessories
    Shop By
    Featured Brands
    Apparel back
    Casual Apparel
    Shop By
    Featured Brands
    Featured Harley Brands View All back
    Get more Dennis Kirk
    back
    Click to read the Dennis Kirk blog
    Shop by Discount back

    Wiseco High-Performance Forged Piston Kit - 3.508 in. Bore/8.5:1 Ratio - K1641

    High-Performance Forged Piston Kit - 3.508 in. Bore/8.5:1 Ratio
    1 / 4
    Submit a photo
    Submit a photo

    Wiseco High-Performance Forged Piston Kit - 3.508 in. Bore/8.5:1 Ratio - K1641

    MSRP: $382.58

    Price: $302.08 21% off!
    Bore Size
    Make sure this fits your ride
    Select
    a Ride
    Ships Free
    In Stock - 2 on Hand

    Ships Today!
    Order in the next
    1 3
    HR
    4 2
    MIN
    4 5
    SEC
    FAST and EASY Returns Low Price Guarantee
    (0) Options available
    Returns not accepted on open box items
    Wiseco High-Performance Forged Piston Kit - 3.508 in. Bore/8.5:1 Ratio
    • Get low expansion at high temperatures and great operating strength from a respected name - Wiseco
    • All Wiseco pistons sold by Dennis Kirk are forged from a high-silicone aluminum alloy for superior strength and consistent dimension, even in high stress conditions
    • Includes Hastings-style X-rings (.062 top ring, .062 compression ring and .158 oil ring)
    • 8.5:1 Compression - flat top
    • Kit includes two pistons, rings, piston pins and circlips

    Fitment: 1340cc Evo. Big Twin 84-99

    Available Sizes:
    1340cc - 3.498in./Standard - Part No. K1640
    1345cc - 3.508in./+.010in. - Part No. K1641
    1353cc - 3.518in./+.020in. - Part No. K1642
    1361cc - 3.528in./+.030in. - Part No. K1643
    1369cc - 3.538in./+.040in. - Part No. K1644

    Our pistons, rings and kits are sold by application and bore size. Please note that STANDARD and OVERSIZES are not indicated. To get the correct part, you must know the standard bore size to make sure you are ordering either the standard or correct amount of oversize that you need. If you have any questions, please call Technical Service.

     


    • Components also sold separately; replacement rings (3507X) include enough rings for one piston; replacement wrist pins (S534) sold each; replacement circlips (W5731) sold in pairs
    Mfg. Price Controlled Item
    Due to the manufacturer's advertising policy - this item is excluded from promotions and discounts details
    Specifications
    Bore Size 3.508 in.
    Compression Ratio 8.5:1
    Mfg #: K1641
    Part #: K1641
    Type Piston Kit
    Units Each
    Weight 2.50 lbs
    Vendor Part Number(s):
    K1641
    UPC Code:
    193564149671
    WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
    Resources & Manuals
    Instruction Manual 3.9 MiB
    Fitment for Wiseco High-Performance Forged Piston Kit - 3.508 in. Bore/8.5:1 Ratio

    Part K1641 fits the following machines

    Harley-Davidson
    1984
    1995 1996 1997 1998
    1992
    1992
    1993 1994 1995 1996 1997 1998
    1994
    1991
    1995 1996 1997 1998
    1993 1994 1995 1996 1997 1998
    1985 1986 1987
    1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998
    1996 1997 1998
    1987 1988 1989 1990 1991 1992 1993
    1995 1996 1997 1998
    1990 1991 1992 1993 1994 1995 1996 1997
    1995 1996 1997 1998
    1999
    1999
    1986 1987 1988 1989 1990
    1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999
    1993
    1994 1995 1996
    1997 1998 1999
    1984 1985
    1985
    1986 1987 1988 1990 1991 1992
    1985
    1987
    1990 1991 1992 1993
    1987 1988 1990 1991 1992 1993 1994
    1986 1987 1988 1989 1990 1991 1992 1993
    1998
    1998
    1994 1995 1996 1997 1998
    1998
    1996 1997 1998
    1984 1985 1986 1987 1988 1989 1990
    1986 1987 1988 1989
    1990 1991 1992 1993 1994 1995 1996 1997 1998 1999
    1999
    1990 1991 1992 1993 1994 1995 1996 1997 1998 1999
    1995 1996 1997
    1999
    1985 1986 1987 1988 1989
    1984
    1984
    1986
    1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994
    1985
    1990 1991
    1989 1990 1991 1992 1993 1994 1995
    1996
    1985 1986

    Associated

    You May Also Be Interested In

    Reviews & Questions