Cylinder Heads & Components | Birds Bitz https://birdsbitz.com.au/product-category/engine/cylinder-heads-components/ Aftermarket Harley Davidson Parts Store | Motorcycle Parts Brisbane | Birds Bitz Wed, 03 Jun 2026 15:24:59 +0000 en-AU hourly 1 https://wordpress.org/?v=6.8.5 https://birdsbitz.com.au/wp-content/uploads/2020/08/logo-150x110-1-100x100.png Cylinder Heads & Components | Birds Bitz https://birdsbitz.com.au/product-category/engine/cylinder-heads-components/ 32 32 KPM Exhaust Valve. Fits Twin Cam 2005-2017. OEM Replacement https://birdsbitz.com.au/online-shop/engine/cylinder-heads-components/cylinder-heads-parts-t-cam/kpm-exhaust-valve-fits-twin-cam-2005-2017-oem-replacement/ Sun, 24 May 2026 15:17:27 +0000 https://birdsbitz.com.au/online-shop/uncategorised/kpm-exhaust-valve-fits-twin-cam-2005-2017-oem-replacement/ * All KPMI Black Diamond Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface buildup of .0002. This process improves wear properties, reduces friction, and provides resistance to corrosion and wear. Each valve is designed using Finite Element Analysis software, and profiles are tested on our […]

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]]> * All KPMI Black Diamond Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface buildup of .0002. This process improves wear properties, reduces friction, and provides resistance to corrosion and wear. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench.

Head Diameter: 1.575in.

Stem Diameter 7.00mm

Tulip: 22º

Overall Length: 4.520in.

* Replaces OEM # 18085-05

*“On Line Shopping Only

The post KPM Exhaust Valve. Fits Twin Cam 2005-2017. OEM Replacement appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> KPM Valve Kit. Fits Panhead Big Twin 1948-1965 https://birdsbitz.com.au/online-shop/engine/cylinder-heads-components/cylinder-heads-parts-vintage/kpm-valve-kit-fits-panhead-big-twin-1948-1965/ Sun, 10 May 2026 15:14:53 +0000 https://birdsbitz.com.au/online-shop/uncategorised/kpm-valve-kit-fits-panhead-big-twin-1948-1965/ Kit Includes:* A Full Set of KPMI Stainless Steel Black Diamond Valves (Stock Head Diameter)* All KPMI Black Diamond Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface buildup of .0002. This process improves wear properties, reduces friction, and provides resistance to corrosion and wear. Each […]

The post KPM Valve Kit. Fits Panhead Big Twin 1948-1965 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Kit Includes:

* A Full Set of KPMI Stainless Steel Black Diamond Valves (Stock Head Diameter)

* All KPMI Black Diamond Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface buildup of .0002. This process improves wear properties, reduces friction, and provides resistance to corrosion and wear. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench.

* Replaces OEM # 18071-48 & 18082-57

Suggested Additional Purchase:-

Top End Gasket Kit # CG-C9968 or JGI-17034-48-XF

*“On Line Shopping Only

The post KPM Valve Kit. Fits Panhead Big Twin 1948-1965 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> KPM Valve Kit. Fits Big Twin 1966-1984 https://birdsbitz.com.au/online-shop/engine/cylinder-heads-components/cylinder-heads-parts-vintage/kpm-valve-kit-fits-big-twin-1966-1984/ Sun, 10 May 2026 15:14:53 +0000 https://birdsbitz.com.au/online-shop/uncategorised/kpm-valve-kit-fits-big-twin-1966-1984/ Kit Includes:* A Full Set of KPMI Stainless Steel Black Diamond Valves (Stock Head Diameter)* All KPMI Black Diamond Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface buildup of .0002. This process improves wear properties, reduces friction, and provides resistance to corrosion and wear. Each […]

The post KPM Valve Kit. Fits Big Twin 1966-1984 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Kit Includes:

* A Full Set of KPMI Stainless Steel Black Diamond Valves (Stock Head Diameter)

* All KPMI Black Diamond Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface buildup of .0002. This process improves wear properties, reduces friction, and provides resistance to corrosion and wear. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench.

* Replaces OEM # 18074-66, 18075-80, 18075-81, 18078-80, 18078-81, 18082-57, 18087-81

Suggested Additional Purchase:-

Top End Gasket Kit # CG-C9967 or JGI-17034-66-X

*“On Line Shopping Only

The post KPM Valve Kit. Fits Big Twin 1966-1984 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> KPM Valve Kit. Fits Evolution Big Twin 1984-1999 https://birdsbitz.com.au/online-shop/engine/cylinder-heads-components/cylinder-heads-parts-evo/kpm-valve-kit-fits-evolution-big-twin-1984-1999/ Sun, 10 May 2026 15:14:53 +0000 https://birdsbitz.com.au/online-shop/uncategorised/kpm-valve-kit-fits-evolution-big-twin-1984-1999/ Kit Includes:* A Full Set of KPMI Stainless Steel Black Diamond Valves (Stock Head Diameter)* All KPMI Black Diamond Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface buildup of .0002. This process improves wear properties, reduces friction, and provides resistance to corrosion and wear. Each […]

The post KPM Valve Kit. Fits Evolution Big Twin 1984-1999 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Kit Includes:

* A Full Set of KPMI Stainless Steel Black Diamond Valves (Stock Head Diameter)

* All KPMI Black Diamond Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface buildup of .0002. This process improves wear properties, reduces friction, and provides resistance to corrosion and wear. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench.

* Replaces OEM # 18074-83 & 18082-83

Suggested Additional Purchase:-

Top End Gasket Kit # CG-C9747 or CG-C9635

*“On Line Shopping Only

The post KPM Valve Kit. Fits Evolution Big Twin 1984-1999 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> KPM Valve Kit. Fits 1200cc Sportster 2004-2021 https://birdsbitz.com.au/online-shop/engine/cylinder-heads-components/cylinder-heads-parts-sporty/kpm-valve-kit-fits-1200cc-sportster-2004-2021/ Sun, 10 May 2026 15:14:53 +0000 https://birdsbitz.com.au/online-shop/uncategorised/kpm-valve-kit-fits-1200cc-sportster-2004-2021/ Kit Includes:* A Full Set of KPMI Stainless Steel Black Diamond Valves (Stock Head Diameter)* All KPMI Black Diamond Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface buildup of .0002. This process improves wear properties, reduces friction, and provides resistance to corrosion and wear. Each […]

The post KPM Valve Kit. Fits 1200cc Sportster 2004-2021 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Kit Includes:

* A Full Set of KPMI Stainless Steel Black Diamond Valves (Stock Head Diameter)

* All KPMI Black Diamond Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface buildup of .0002. This process improves wear properties, reduces friction, and provides resistance to corrosion and wear. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench.

* Replaces OEM # 18690-02 & 18691-02

Suggested Additional Purchase:-

Top End Gasket Kit # CG-C9970 or CG-C9177

*“On Line Shopping Only

The post KPM Valve Kit. Fits 1200cc Sportster 2004-2021 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> KPM Valve Kit. Fits Sportster 1970-1983 https://birdsbitz.com.au/online-shop/engine/cylinder-heads-components/cylinder-heads-parts-sporty/kpm-valve-kit-fits-sportster-1970-1983/ Sun, 10 May 2026 15:14:53 +0000 https://birdsbitz.com.au/online-shop/uncategorised/kpm-valve-kit-fits-sportster-1970-1983/ Kit Includes:* A Full Set of KPMI Stainless Steel Black Diamond Valves (Stock Head Diameter)* All KPMI Black Diamond Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface buildup of .0002. This process improves wear properties, reduces friction, and provides resistance to corrosion and wear. Each […]

The post KPM Valve Kit. Fits Sportster 1970-1983 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Kit Includes:

* A Full Set of KPMI Stainless Steel Black Diamond Valves (Stock Head Diameter)

* All KPMI Black Diamond Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface buildup of .0002. This process improves wear properties, reduces friction, and provides resistance to corrosion and wear. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench.

* Replaces OEM # 18027-80 & 18033-80

Suggested Additional Purchase:-

Top End Gasket Kit # JGI-17030-72-A or CG-C9052

*“On Line Shopping Only

The post KPM Valve Kit. Fits Sportster 1970-1983 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> KPM Valve Kit. Fits 883cc Sportster 1986-2003 https://birdsbitz.com.au/online-shop/engine/cylinder-heads-components/cylinder-heads-parts-sporty/kpm-valve-kit-fits-883cc-sportster-1986-2003/ Sun, 10 May 2026 15:14:53 +0000 https://birdsbitz.com.au/online-shop/uncategorised/kpm-valve-kit-fits-883cc-sportster-1986-2003/ Kit Includes:* A Full Set of KPMI Stainless Steel Black Diamond Valves (Stock Head Diameter)* All KPMI Black Diamond Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface buildup of .0002. This process improves wear properties, reduces friction, and provides resistance to corrosion and wear. Each […]

The post KPM Valve Kit. Fits 883cc Sportster 1986-2003 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Kit Includes:

* A Full Set of KPMI Stainless Steel Black Diamond Valves (Stock Head Diameter)

* All KPMI Black Diamond Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface buildup of .0002. This process improves wear properties, reduces friction, and provides resistance to corrosion and wear. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench.

* Replaces OEM # 18030-86 & 18031-86

Suggested Additional Purchase:-

Top End Gasket Kit # CG-C9762 or CG-C9763

*“On Line Shopping Only

The post KPM Valve Kit. Fits 883cc Sportster 1986-2003 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> KPM Valve Kit. Fits 1200cc Sportster 1988-2003 https://birdsbitz.com.au/online-shop/engine/cylinder-heads-components/cylinder-heads-parts-sporty/kpm-valve-kit-fits-1200cc-sportster-1988-2003/ Sun, 10 May 2026 15:14:53 +0000 https://birdsbitz.com.au/online-shop/uncategorised/kpm-valve-kit-fits-1200cc-sportster-1988-2003/ Kit Includes:* A Full Set of KPMI Stainless Steel Black Diamond Valves (Stock Head Diameter)* All KPMI Black Diamond Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface buildup of .0002. This process improves wear properties, reduces friction, and provides resistance to corrosion and wear. Each […]

The post KPM Valve Kit. Fits 1200cc Sportster 1988-2003 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Kit Includes:

* A Full Set of KPMI Stainless Steel Black Diamond Valves (Stock Head Diameter)

* All KPMI Black Diamond Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface buildup of .0002. This process improves wear properties, reduces friction, and provides resistance to corrosion and wear. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench.

* Replaces OEM # 18023-87 & 18024-87

Suggested Additional Purchase:-

Top End Gasket Kit # CG-C9762 or CG-C9763

*“On Line Shopping Only

The post KPM Valve Kit. Fits 1200cc Sportster 1988-2003 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> KPM Exhaust Valve Seat. Fits Big Twin 1966-1984 https://birdsbitz.com.au/online-shop/engine/cylinder-heads-components/cylinder-heads-parts-vintage/kpm-exhaust-valve-seat-fits-big-twin-1966-1984/ Sun, 10 May 2026 15:14:53 +0000 https://birdsbitz.com.au/online-shop/uncategorised/kpm-exhaust-valve-seat-fits-big-twin-1966-1984/ In an effort to develop valve seats that would meet our exacting standards, KPMI® tested and chemically separated several iron based valve seats. Eventually we specified a combination of materials that gave us a seat with good uniform hardness and resistance to microwelding, wear, and recession. This material is compatible with all types of fuel […]

The post KPM Exhaust Valve Seat. Fits Big Twin 1966-1984 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> In an effort to develop valve seats that would meet our exacting standards, KPMI® tested and chemically separated several iron based valve seats. Eventually we specified a combination of materials that gave us a seat with good uniform hardness and resistance to microwelding, wear, and recession. This material is compatible with all types of fuel blends, resists corrosion and burning, and is machinable with standard tooling.

OD = 2.060in.

ID = 1.562in.

Thickness = 0.450in.

Matching Intake Seat # KPM-10-SC550

* Replaces OEM # 18010-79, 18017-66, 18020-79, 18055-66B

*“On Line Shopping Only

The post KPM Exhaust Valve Seat. Fits Big Twin 1966-1984 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> KPM Intake Valve Seat. Fits Big Twin 1966-1984 https://birdsbitz.com.au/online-shop/engine/cylinder-heads-components/cylinder-heads-parts-vintage/kpm-intake-valve-seat-fits-big-twin-1966-1984/ Sun, 10 May 2026 15:14:53 +0000 https://birdsbitz.com.au/online-shop/uncategorised/kpm-intake-valve-seat-fits-big-twin-1966-1984/ In an effort to develop valve seats that would meet our exacting standards, KPMI® tested and chemically separated several iron based valve seats. Eventually we specified a combination of materials that gave us a seat with good uniform hardness and resistance to microwelding, wear, and recession. This material is compatible with all types of fuel […]

The post KPM Intake Valve Seat. Fits Big Twin 1966-1984 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> In an effort to develop valve seats that would meet our exacting standards, KPMI® tested and chemically separated several iron based valve seats. Eventually we specified a combination of materials that gave us a seat with good uniform hardness and resistance to microwelding, wear, and recession. This material is compatible with all types of fuel blends, resists corrosion and burning, and is machinable with standard tooling.

OD = 2.164in.

ID = 1.750in.

Thickness = 0.450in.

Matching Exhaust Seat # KPM-10-SC523

* Replaces OEM # 18018-66 & 18056-66B

*“On Line Shopping Only

The post KPM Intake Valve Seat. Fits Big Twin 1966-1984 appeared first on Birds Bitz Motorcycle Parts & Accessories.

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