Select Your Ride

1
2
3

Harley Valves and Parts

Harley Valves and Parts

Harley Valves and Parts

Harley Bike Valves & Parts at JJ Motorsports

Revitalize your Harley's valvetrain with premium valves and springs from JJ Motorsports, featuring Kibblewhite stainless steel valves and beehive springs for increased lift, better flow, and high-RPM durability on Twin Cam, Evo, and Big Twin engines. These precision components ensure reliable sealing and performance.

Shop Kibblewhite and Feuling valves and parts for race-proven quality. Explore related categories such as Harley engine for cams and lifters, or Harley for exhaust and heads to complete your top-end rebuild.

Top Harley Valves & Parts

Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • On Sale
    KIBBLEWHITE Spring Kit 80-81400

    KIBBLEWHITE Spring Kit 80-81400

    KIBBLEWHITE

    MSRP: $220.26
    Now: $198.23
    Was: $220.26
    Valve spring performance directly impacts engine reliability and rev capability, making quality replacement springs essential for any top-end rebuild. The Kibblewhite Spring Kit 80-81400 delivers...
    09263161
    SKU:
    09263161
    Availability:
    Ships Same Business Day
    Weight:
    0.41 LBS
    APPLICATION:
    INTAKE
    MATERIAL:
    STEEL
    MATERIAL:
    TITANIUM
    APPLICATION:
    EXHAUST
    TYPE:
    VALVE
    PRODUCT NAME:
    SPRING KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    MSRP: $220.26
    Now: $198.23
    Was: $220.26
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $220.26
    Now: $198.23
    Was: $220.26
    Subtotal:
  • On Sale
    KIBBLEWHITE Intake Valve 80-80912

    KIBBLEWHITE Intake Valve 80-80912

    KIBBLEWHITE

    MSRP: $31.01
    Now: $27.91
    Was: $31.01
    Intake valve performance directly impacts your engine's breathing efficiency and overall power output. The KIBBLEWHITE Black Diamondâ„¢ valve delivers measurable gains in flow consistency and...
    09263162
    SKU:
    09263162
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    HEAD DIAMETER METRIC:
    31.00 MM
    LENGTH IMPERIAL:
    3.280'
    MODEL:
    BLACK DIAMONDâ„¢
    TULIP ANGLE:
    18°
    APPLICATION:
    INTAKE
    PRODUCT NAME:
    VALVE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    MATERIAL:
    TITANIUM
    STEM DIAMETER IMPERIAL:
    0.1962'
    MSRP: $31.01
    Now: $27.91
    Was: $31.01
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $31.01
    Now: $27.91
    Was: $31.01
    Subtotal:
  • On Sale
    KIBBLEWHITE Exhaust Valve 80-80916

    KIBBLEWHITE Exhaust Valve 80-80916

    KIBBLEWHITE

    MSRP: $31.01
    Now: $27.91
    Was: $31.01
    Stock valves wear faster and cost you performance gains over time. The KIBBLEWHITE Black Diamondâ„¢ Exhaust Valve delivers measurable improvements in durability, corrosion resistance, and friction...
    09263163
    SKU:
    09263163
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    MATERIAL:
    TITANIUM
    MODEL:
    BLACK DIAMONDâ„¢
    STEM DIAMETER IMPERIAL:
    0.1760'
    TULIP ANGLE:
    30°
    APPLICATION:
    EXHAUST
    LENGTH IMPERIAL:
    3.235'
    PRODUCT NAME:
    VALVE
    UNITS:
    EACH
    HEAD DIAMETER METRIC:
    25.00 MM
    RIDING STYLE:
    OFF-ROAD
    MSRP: $31.01
    Now: $27.91
    Was: $31.01
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $31.01
    Now: $27.91
    Was: $31.01
    Subtotal:
  • On Sale
    KIBBLEWHITE Valve Guide Seal 71015-4

    KIBBLEWHITE Valve Guide Seal 71015-4

    KIBBLEWHITE

    MSRP: $13.96
    Now: $12.56
    Was: $13.96
    Valve guide seals are critical to engine longevity—they prevent oil from seeping past the valve stem and into the combustion chamber, which causes blow-by, smoking, and accelerated wear on your rings...
    09263164
    SKU:
    09263164
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    MATERIAL:
    VITON
    OUTSIDE DIAMETER IMPERIAL:
    0.405'
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    TYPE:
    VALVE GUIDE
    UNITS:
    4 PACK
    APPLICATION:
    INTAKE
    RIDING STYLE:
    ATV
    STEM DIAMETER METRIC:
    5.00 MM
    PRODUCT NAME:
    SEAL
    RIDING STYLE:
    OFF-ROAD
    APPLICATION:
    EXHAUST
    RIDING STYLE:
    WATERCRAFT
    MSRP: $13.96
    Now: $12.56
    Was: $13.96
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $13.96
    Now: $12.56
    Was: $13.96
    Subtotal:
  • On Sale
    KIBBLEWHITE Valve Guide Seal 71029-8

    KIBBLEWHITE Valve Guide Seal 71029-8

    KIBBLEWHITE

    MSRP: $27.92
    Now: $25.13
    Was: $27.92
    Valve guide seals are critical to engine longevity—they prevent oil from seeping into your combustion chambers, which causes smoking, carbon buildup, and loss of compression. Whether you're...
    09263165
    SKU:
    09263165
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    OUTSIDE DIAMETER IMPERIAL:
    0.520'
    STEM DIAMETER METRIC:
    6.00 MM
    UNITS:
    8 PACK
    APPLICATION:
    EXHAUST
    PRODUCT NAME:
    SEAL
    APPLICATION:
    INTAKE
    RIDING STYLE:
    ATV
    TYPE:
    VALVE GUIDE
    MATERIAL:
    VITON
    RIDING STYLE:
    OFF-ROAD
    MSRP: $27.92
    Now: $25.13
    Was: $27.92
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $27.92
    Now: $25.13
    Was: $27.92
    Subtotal:
  • On Sale
    KIBBLEWHITE Spring Kit - .650" - Evolution/Twin Cam 20-21650

    KIBBLEWHITE Spring Kit - .650" - Evolution/Twin Cam 20-21650

    KIBBLEWHITE

    MSRP: $219.85
    Now: $197.87
    Was: $219.85
    If you're running Evolution or Twin Cam heads, valve wear directly impacts performance, reliability, and your bottom line—especially under high RPM or boost. The KIBBLEWHITE Spring Kit converts your...
    09263167
    SKU:
    09263167
    Availability:
    Ships Same Business Day
    Weight:
    1.56 LBS
    APPLICATION:
    EXHAUST
    SPRING OPEN PRESSURE:
    440 LB
    SPRING LIFT:
    0,650'
    SPRING LIFT IMPERIAL:
    0.650'
    SPRING SEAT PRESSURE:
    185 IB
    UNITS:
    KIT
    APPLICATION:
    INTAKE
    PRODUCT NAME:
    SPRING KIT
    RIDING STYLE:
    STREET
    MSRP: $219.85
    Now: $197.87
    Was: $219.85
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $219.85
    Now: $197.87
    Was: $219.85
    Subtotal:
  • On Sale
    KIBBLEWHITE Beehive Spring Kit - .625" - M8 20-21800

    KIBBLEWHITE Beehive Spring Kit - .625" - M8 20-21800

    KIBBLEWHITE

    MSRP: $416.13
    Now: $374.52
    Was: $416.13
    Valve spring performance is non-negotiable in high-RPM applications—inadequate spring rates lead to valve float, lost power, and catastrophic engine damage. The KIBBLEWHITE Beehive Spring Kit...
    09263276
    SKU:
    09263276
    Availability:
    Ships Same Business Day
    Weight:
    1.01 LBS
    APPLICATION:
    INTAKE
    MATERIAL:
    STEEL
    SPRING LIFT IMPERIAL:
    0.625'
    PRODUCT NAME:
    SPRING KIT
    SPRING SEAT PRESSURE:
    85 LB
    UNITS:
    KIT
    RIDING STYLE:
    STREET
    SPRING OPEN PRESSURE:
    280 LB
    APPLICATION:
    EXHAUST
    COLLAR MATERIAL:
    TITANIUM
    STYLE:
    OVATE WIRE BEEHIVE
    TYPE:
    VALVE
    MSRP: $416.13
    Now: $374.52
    Was: $416.13
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $416.13
    Now: $374.52
    Was: $416.13
    Subtotal:
  • On Sale
    KIBBLEWHITE Beehive Spring Kit - .625" - M8 20-21850

    KIBBLEWHITE Beehive Spring Kit - .625" - M8 20-21850

    KIBBLEWHITE

    MSRP: $332.91
    Now: $299.62
    Was: $332.91
    Valve spring performance directly impacts your engine's ability to maintain valve timing and control under high RPM and boost conditions. The KIBBLEWHITE Beehive Spring Kit delivers precise load...
    09263277
    SKU:
    09263277
    Availability:
    Ships Same Business Day
    Weight:
    1.26 LBS
    APPLICATION:
    INTAKE
    MATERIAL:
    STEEL
    SPRING LIFT IMPERIAL:
    0.625'
    APPLICATION:
    EXHAUST
    STYLE:
    OVATE WIRE BEEHIVE
    TYPE:
    VALVE
    COLLAR MATERIAL:
    STEEL
    SPRING SEAT PRESSURE:
    85 LB
    PRODUCT NAME:
    SPRING KIT
    RIDING STYLE:
    STREET
    SPRING OPEN PRESSURE:
    280 LB
    UNITS:
    KIT
    MSRP: $332.91
    Now: $299.62
    Was: $332.91
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $332.91
    Now: $299.62
    Was: $332.91
    Subtotal:
  • On Sale
    KIBBLEWHITE Valve Guide Seal 71010-4

    KIBBLEWHITE Valve Guide Seal 71010-4

    KIBBLEWHITE

    MSRP: $7.15
    Now: $6.44
    Was: $7.15
    Valve guide seals are critical to engine health—they prevent oil from entering the combustion chamber while maintaining compression and reducing emissions. The Kibblewhite 71010-4 uses dual Viton®...
    09263204
    SKU:
    09263204
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    MATERIAL:
    VITON
    PRODUCT NAME:
    SEAL
    UNITS:
    4 PACK
    RIDING STYLE:
    STREET
    APPLICATION:
    EXHAUST
    APPLICATION:
    INTAKE
    LENGTH IMPERIAL:
    0.412'
    OUTSIDE DIAMETER IMPERIAL:
    0.5660'
    STEM DIAMETER IMPERIAL:
    5/16'
    TYPE:
    VALVE
    MSRP: $7.15
    Now: $6.44
    Was: $7.15
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $7.15
    Now: $6.44
    Was: $7.15
    Subtotal:
  • On Sale
    KIBBLEWHITE Valve Guide Seal 71011-4

    KIBBLEWHITE Valve Guide Seal 71011-4

    KIBBLEWHITE

    MSRP: $8.16
    Now: $7.34
    Was: $8.16
    Valve guide seals are critical to controlling oil consumption and maintaining combustion chamber cleanliness—neglect them, and you're looking at blow-by, smoke, and accelerated engine wear. The...
    09263205
    SKU:
    09263205
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    LENGTH IMPERIAL:
    0.516'
    OUTSIDE DIAMETER IMPERIAL:
    0.661'
    STEM DIAMETER IMPERIAL:
    3/8'
    RIDING STYLE:
    STREET
    TYPE:
    VALVE
    MATERIAL:
    VITON
    PRODUCT NAME:
    SEAL
    UNITS:
    4 PACK
    MSRP: $8.16
    Now: $7.34
    Was: $8.16
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $8.16
    Now: $7.34
    Was: $8.16
    Subtotal:
  • On Sale
    KIBBLEWHITE Valve Kit - Sportster 20-22300

    KIBBLEWHITE Valve Kit - Sportster 20-22300

    KIBBLEWHITE

    MSRP: $142.70
    Now: $128.43
    Was: $142.70
    Valve degradation is one of the fastest ways to lose performance and reliability in your Sportster engine. The KIBBLEWHITE Valve Kit equips your engine with Black Diamondâ„¢ stainless steel valves...
    09263207
    SKU:
    09263207
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    PRODUCT NAME:
    VALVE KIT
    UNITS:
    KIT
    MATERIAL:
    STAINLESS STEEL
    MODEL:
    BLACK DIAMONDâ„¢
    RIDING STYLE:
    STREET
    MSRP: $142.70
    Now: $128.43
    Was: $142.70
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $142.70
    Now: $128.43
    Was: $142.70
    Subtotal:
  • On Sale
    KIBBLEWHITE Complete Valve Kit 20-22350

    KIBBLEWHITE Complete Valve Kit 20-22350

    KIBBLEWHITE

    MSRP: $247.99
    Now: $223.19
    Was: $247.99
    A complete valve kit built for reliability and longevity, the KIBBLEWHITE 20-22350 handles the critical components that directly impact combustion efficiency and engine durability. This is the smart...
    09263208
    SKU:
    09263208
    Availability:
    Ships Same Business Day
    Weight:
    1.75 LBS
    MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    ENGINE KIT
    SPRING LIFT IMPERIAL:
    0.400'
    SPRING SEAT PRESSURE:
    95 LB
    UNITS:
    KIT
    SPRING OPEN PRESSURE:
    325 LB
    MODEL:
    BLACK DIAMONDâ„¢
    RIDING STYLE:
    STREET
    SPRING LIFT:
    0,400'
    MSRP: $247.99
    Now: $223.19
    Was: $247.99
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $247.99
    Now: $223.19
    Was: $247.99
    Subtotal:
  • On Sale
    KIBBLEWHITE Complete Valve Kit - Evolution 20-22650

    KIBBLEWHITE Complete Valve Kit - Evolution 20-22650

    KIBBLEWHITE

    MSRP: $246.98
    Now: $222.28
    Was: $246.98
    A complete valve kit engineered for reliability and longevity, the KIBBLEWHITE Evolution 20-22650 addresses the critical wear points in your engine's valvetrain. Valve degradation leads to...
    09263210
    SKU:
    09263210
    Availability:
    Ships Same Business Day
    Weight:
    2.15 LBS
    RIDING STYLE:
    STREET
    SPRING OPEN PRESSURE:
    361 LB
    SPRING LIFT IMPERIAL:
    0.600'
    UNITS:
    KIT
    MODEL:
    BLACK DIAMONDâ„¢
    SPRING SEAT PRESSURE:
    163 LB
    MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    ENGINE KIT
    SPRING LIFT:
    0,600'
    MSRP: $246.98
    Now: $222.28
    Was: $246.98
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $246.98
    Now: $222.28
    Was: $246.98
    Subtotal:
  • On Sale
    KIBBLEWHITE Valve Kit - Evolution/883 20-22700

    KIBBLEWHITE Valve Kit - Evolution/883 20-22700

    KIBBLEWHITE

    MSRP: $142.70
    Now: $128.43
    Was: $142.70
    Valve degradation is one of the fastest ways to lose compression and performance in your Evolution or 883 engine. The KIBBLEWHITE Valve Kit delivers Black Diamondâ„¢ stainless steel valves engineered...
    09263211
    SKU:
    09263211
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    VALVE KIT
    UNITS:
    KIT
    MODEL:
    BLACK DIAMONDâ„¢
    RIDING STYLE:
    STREET
    MSRP: $142.70
    Now: $128.43
    Was: $142.70
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $142.70
    Now: $128.43
    Was: $142.70
    Subtotal:
  • On Sale
    KIBBLEWHITE Complete Valve Kit - Evolution/883 20-22750

    KIBBLEWHITE Complete Valve Kit - Evolution/883 20-22750

    KIBBLEWHITE

    MSRP: $274.84
    Now: $247.36
    Was: $274.84
    Factory valve kits deteriorate from heat cycling and fuel exposure, leading to reduced compression and power loss over time. The KIBBLEWHITE Complete Valve Kit restores your Evolution/883's...
    09263212
    SKU:
    09263212
    Availability:
    Ships Same Business Day
    Weight:
    2.05 LBS
    SPRING SEAT PRESSURE:
    163 LB
    UNITS:
    KIT
    MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    ENGINE KIT
    SPRING OPEN PRESSURE:
    361 LB
    MODEL:
    BLACK DIAMONDâ„¢
    RIDING STYLE:
    STREET
    SPRING LIFT:
    0,600'
    SPRING LIFT IMPERIAL:
    0.600'
    MSRP: $274.84
    Now: $247.36
    Was: $274.84
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $274.84
    Now: $247.36
    Was: $274.84
    Subtotal:
  • On Sale
    KIBBLEWHITE Exhaust Valve - Standard - M8 20-21016H

    KIBBLEWHITE Exhaust Valve - Standard - M8 20-21016H

    KIBBLEWHITE

    MSRP: $32.78
    Now: $29.50
    Was: $32.78
    OEM exhaust valves are a wear item that compromises performance as they degrade. Kibblewhite's Black Diamond valves are one-piece forgings engineered to outlast stock components while maintaining...
    09263306
    SKU:
    09263306
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    RIDING STYLE:
    STREET
    APPLICATION:
    EXHAUST
    HEAD DIAMETER IMPERIAL:
    1.264'
    LENGTH IMPERIAL:
    4.050'
    TULIP ANGLE:
    24°
    PRODUCT NAME:
    VALVE
    STEM DIAMETER IMPERIAL:
    0.2342'
    UNITS:
    EACH
    MSRP: $32.78
    Now: $29.50
    Was: $32.78
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $32.78
    Now: $29.50
    Was: $32.78
    Subtotal:
  • On Sale
    KIBBLEWHITE Engine Kit - Knucklehead 20-22050

    KIBBLEWHITE Engine Kit - Knucklehead 20-22050

    KIBBLEWHITE

    MSRP: $225.66
    Now: $203.09
    Was: $225.66
    A Knucklehead engine demands precision valve train components that can withstand extreme combustion pressures and extended service intervals. The KIBBLEWHITE Engine Kit delivers factory-backed...
    09263308
    SKU:
    09263308
    Availability:
    Ships Same Business Day
    Weight:
    2.15 LBS
    RIDING STYLE:
    STREET
    SPRING OPEN PRESSURE:
    270 LB
    SPRING LIFT:
    0,415'
    PRODUCT NAME:
    ENGINE KIT
    SPRING LIFT IMPERIAL:
    0.415'
    SPRING SEAT PRESSURE:
    127 LB
    UNITS:
    KIT
    MSRP: $225.66
    Now: $203.09
    Was: $225.66
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $225.66
    Now: $203.09
    Was: $225.66
    Subtotal:
  • On Sale
    KIBBLEWHITE Valve Kit - Panhead 20-22100

    KIBBLEWHITE Valve Kit - Panhead 20-22100

    KIBBLEWHITE

    MSRP: $117.85
    Now: $106.07
    Was: $117.85
    The Kibblewhite Valve Kit ensures reliable, long-term performance in your Panhead engine by combining precision engineering with superior material science. Black Diamondâ„¢ stainless steel valves...
    09263309
    SKU:
    09263309
    Availability:
    Ships Same Business Day
    Weight:
    1.05 LBS
    MATERIAL:
    STAINLESS STEEL
    MODEL:
    BLACK DIAMONDâ„¢
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    PRODUCT NAME:
    VALVE KIT
    MSRP: $117.85
    Now: $106.07
    Was: $117.85
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $117.85
    Now: $106.07
    Was: $117.85
    Subtotal:
  • On Sale
    KIBBLEWHITE Engine Kit - Panhead 20-22150

    KIBBLEWHITE Engine Kit - Panhead 20-22150

    KIBBLEWHITE

    MSRP: $235.80
    Now: $212.22
    Was: $235.80
    Your Panhead engine demands valve components engineered to withstand high RPMs and extreme temperatures without sacrificing longevity. The KIBBLEWHITE Engine Kit delivers OEM-quality valve assemblies...
    09263310
    SKU:
    09263310
    Availability:
    Ships Same Business Day
    Weight:
    2.40 LBS
    RIDING STYLE:
    STREET
    SPRING OPEN PRESSURE:
    272 LB
    SPRING SEAT PRESSURE:
    129 LB
    UNITS:
    KIT
    PRODUCT NAME:
    ENGINE KIT
    SPRING LIFT IMPERIAL:
    0.415'
    SPRING LIFT:
    0,415'
    MSRP: $235.80
    Now: $212.22
    Was: $235.80
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $235.80
    Now: $212.22
    Was: $235.80
    Subtotal:
  • On Sale
    KIBBLEWHITE Engine Kit - XL 20-22250

    KIBBLEWHITE Engine Kit - XL 20-22250

    KIBBLEWHITE

    MSRP: $247.99
    Now: $223.19
    Was: $247.99
    A complete valve train refresh is essential for maintaining peak engine performance and reliability, especially in high-demand racing and performance applications. The KIBBLEWHITE Engine Kit delivers...
    09263312
    SKU:
    09263312
    Availability:
    Ships Same Business Day
    Weight:
    1.80 LBS
    SPRING LIFT:
    0,400'
    SPRING OPEN PRESSURE:
    325 LB
    RIDING STYLE:
    STREET
    SPRING LIFT IMPERIAL:
    0.400'
    UNITS:
    KIT
    PRODUCT NAME:
    ENGINE KIT
    SPRING SEAT PRESSURE:
    95 LB
    MSRP: $247.99
    Now: $223.19
    Was: $247.99
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $247.99
    Now: $223.19
    Was: $247.99
    Subtotal:
  • Total: items /

Adding your products to cart

Buying Guide and FAQs

Buying Guide: Factors to Consider When Choosing Harley Bike Engine Valves and Parts

  • Compatibility: Ensure parts match your Harley's engine (e.g., Twin Cam, Evo, Big Twin, M8, XL Sportster, Shovelhead). Use the vehicle selector for model-specific fits, including intake/exhaust applications to avoid performance issues.
  • Type of Use: For standard street riding, opt for OEM-style valves and springs; high-RPM or performance builds benefit from upgraded beehive springs and coated valves for durability in demanding conditions.
  • Components and Upgrades: Select valves (intake/exhaust), kits (with springs/guides/seals), springs (beehive/dual), guides (cast iron/bronze), or seals (PTFE). Upgrade to nitrided or Black Diamond coated valves for wear resistance.
  • Brand and Quality: Choose Kibblewhite (KPMI) for stainless steel valves and kits or Feuling for valve springs. Prioritize materials like stainless steel with stellite tips, chrome silicon springs, and bronze guides for longevity and flow.
  • Installation and Cost: Parts are precision-machined for direct replacement; kits simplify rebuilds. Prices range from $8 for guides to $255 for kits—factor in oversize options and free shipping over $99 for value.

Frequently Asked Questions (FAQs)

  1. What Harley engines do these valves and parts support? Parts support Twin Cam, Evo, Big Twin, M8, XL Sportster, and Shovelhead engines—use the year/make/model filter for exact compatibility.
  2. How do coated valves improve performance? Nitriding and Black Diamond coatings reduce friction, improve wear resistance, and enhance corrosion protection for better longevity and flow.
  3. What is typically included in a valve kit? Kits include intake/exhaust valves, guides, seals, keepers, and springs for complete top-end rebuilds.
  4. Are these parts suitable for no-lead fuel? Yes, cast iron guides are compatible with no-lead fuel and any valve-stem material.
  5. What if a part doesn't fit my Harley? Verify engine type and size (standard/oversize) before buying. Our returns policy allows exchanges or refunds if it doesn't match.
  6. Can I find related engine parts? Yes—explore pistons/rings, gaskets, or cams in the Harley engine category to complement your valves upgrade for a full rebuild.

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

SECURE & SAFE PAYMENT

EASY RETURNS

FAST DELIVERY

AUTHORIZED DEALER