Cylinders & Pistons | Birds Bitz https://birdsbitz.com.au/product-category/engine/cylinders-pistons/ Aftermarket Harley Davidson Parts Store | Motorcycle Parts Brisbane | Birds Bitz Mon, 17 Aug 2026 06:26:54 +0000 en-AU hourly 1 https://wordpress.org/?v=7.0.4 https://birdsbitz.com.au/wp-content/uploads/2020/08/logo-150x110-1-100x100.png Cylinders & Pistons | Birds Bitz https://birdsbitz.com.au/product-category/engine/cylinders-pistons/ 32 32 KPM Hi-Performance Cylinder Stud Set. Fits Evo Big Twin 1985-1999 https://birdsbitz.com.au/online-shop/engine/cylinders-pistons/cylinders-pistons-evo/kpm/ Sun, 10 May 2026 15:04:29 +0000 https://birdsbitz.com.au/online-shop/uncategorised/kpm/ KPMI Cylinder Studs are made from 180,000 psi yield strength, fine grain, heat treated, aircraft grade alloy steel. When you want a stud that meets proof-stress and maximizes clamping force, look no further. KPMI in.rollsin. the threads, heat treats and then centerless grinds the entire body of the stud. Rolling the threads creates the toughest […]

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]]> KPMI Cylinder Studs are made from 180,000 psi yield strength, fine grain, heat treated, aircraft grade alloy steel. When you want a stud that meets proof-stress and maximizes clamping force, look no further. KPMI in.rollsin. the threads, heat treats and then centerless grinds the entire body of the stud. Rolling the threads creates the toughest and strongest thread possible and centerless grinding removes notch sensitivity. The final process for all KPMI Studs is to encase the entire stud with premium corrosion resistant treatment of Black Oxide.

* Replaces OEM # 16837-85

Suggested Additional Purchase:

Head Bolt Kit # CM-2011-8, CM-2012-8 or FE-3005

*“On Line Shopping Only

The post KPM Hi-Performance Cylinder Stud Set. Fits Evo Big Twin 1985-1999 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> KPM Hi-Performance Cylinder Stud Set. Fits Milwaukee-Eight 2017up https://birdsbitz.com.au/online-shop/engine/cylinders-pistons/cylinders-pistons-m8/kpm-hi-performance-cylinder-stud-set-fits-milwaukee-eight-2017up/ Sun, 10 May 2026 15:04:29 +0000 https://birdsbitz.com.au/online-shop/uncategorised/kpm-hi-performance-cylinder-stud-set-fits-milwaukee-eight-2017up/ KPMI Cylinder Studs are made from 180,000 psi yield strength, fine grain, heat treated, aircraft grade alloy steel. When you want a stud that meets proof-stress and maximizes clamping force, look no further. KPMI in.rollsin. the threads, heat treats and then centerless grinds the entire body of the stud. Rolling the threads creates the toughest […]

The post KPM Hi-Performance Cylinder Stud Set. Fits Milwaukee-Eight 2017up appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> KPMI Cylinder Studs are made from 180,000 psi yield strength, fine grain, heat treated, aircraft grade alloy steel. When you want a stud that meets proof-stress and maximizes clamping force, look no further. KPMI in.rollsin. the threads, heat treats and then centerless grinds the entire body of the stud. Rolling the threads creates the toughest and strongest thread possible and centerless grinding removes notch sensitivity. The final process for all KPMI Studs is to encase the entire stud with premium corrosion resistant treatment of Black Oxide.

* Replaces OEM # 16800063

Suggested Additional Purchase:

Head Bolt Kit # FE-3007 or SS900-1006

*“On Line Shopping Only

The post KPM Hi-Performance Cylinder Stud Set. Fits Milwaukee-Eight 2017up appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> KPM Hi-Performance Cylinder Stud Set. Fits Twin Cam 1999-2017 https://birdsbitz.com.au/online-shop/engine/cylinders-pistons/cylinders-pistons-t-cam/kpm-hi-performance-cylinder-stud-set-fits-twin-cam-1999-2017/ Sun, 10 May 2026 15:04:29 +0000 https://birdsbitz.com.au/online-shop/uncategorised/kpm-hi-performance-cylinder-stud-set-fits-twin-cam-1999-2017/ KPMI Cylinder Studs are made from 180,000 psi yield strength, fine grain, heat treated, aircraft grade alloy steel. When you want a stud that meets proof-stress and maximizes clamping force, look no further. KPMI in.rollsin. the threads, heat treats and then centerless grinds the entire body of the stud. Rolling the threads creates the toughest […]

The post KPM Hi-Performance Cylinder Stud Set. Fits Twin Cam 1999-2017 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> KPMI Cylinder Studs are made from 180,000 psi yield strength, fine grain, heat treated, aircraft grade alloy steel. When you want a stud that meets proof-stress and maximizes clamping force, look no further. KPMI in.rollsin. the threads, heat treats and then centerless grinds the entire body of the stud. Rolling the threads creates the toughest and strongest thread possible and centerless grinding removes notch sensitivity. The final process for all KPMI Studs is to encase the entire stud with premium corrosion resistant treatment of Black Oxide.

* Replaces OEM # 16505-01 & 16834-99

Suggested Additional Purchase:

Head Bolt Kit # CM-2012-8 or FE-3005

*“On Line Shopping Only

The post KPM Hi-Performance Cylinder Stud Set. Fits Twin Cam 1999-2017 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> KPM Hi-Performance Cylinder Stud Set. Fits Sportster 1986-2021 https://birdsbitz.com.au/online-shop/engine/cylinders-pistons/cylinders-pistons-sporty/kpm-hi-performance-cylinder-stud-set-fits-sportster-1986-2021/ Sun, 10 May 2026 15:04:29 +0000 https://birdsbitz.com.au/online-shop/uncategorised/kpm-hi-performance-cylinder-stud-set-fits-sportster-1986-2021/ KPMI Cylinder Studs are made from 180,000 psi yield strength, fine grain, heat treated, aircraft grade alloy steel. When you want a stud that meets proof-stress and maximizes clamping force, look no further. KPMI in.rollsin. the threads, heat treats and then centerless grinds the entire body of the stud. Rolling the threads creates the toughest […]

The post KPM Hi-Performance Cylinder Stud Set. Fits Sportster 1986-2021 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> KPMI Cylinder Studs are made from 180,000 psi yield strength, fine grain, heat treated, aircraft grade alloy steel. When you want a stud that meets proof-stress and maximizes clamping force, look no further. KPMI in.rollsin. the threads, heat treats and then centerless grinds the entire body of the stud. Rolling the threads creates the toughest and strongest thread possible and centerless grinding removes notch sensitivity. The final process for all KPMI Studs is to encase the entire stud with premium corrosion resistant treatment of Black Oxide.

* Replaces OEM # 16832-86

Suggested Additional Purchase:

Head Bolt Kit # CM-2011-8, CM-2012-8 or FE-3005

*“On Line Shopping Only

The post KPM Hi-Performance Cylinder Stud Set. Fits Sportster 1986-2021 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> KPM Wristpin Bushing. Fits Big Twin 1936-1999 https://birdsbitz.com.au/online-shop/engine/cylinders-pistons/cylinders-pistons-evo/kpm-wristpin-bushing-fits-big-twin-1936-1999/ Sun, 10 May 2026 15:03:01 +0000 https://birdsbitz.com.au/online-shop/uncategorised/kpm-wristpin-bushing-fits-big-twin-1936-1999/ Our Manganese Bronze wrist pin bushings continue to Perform under the most demanding conditions. These bushings are made to exact tolerances and will meet or exceed fitment and wear ability of all other replacement style bushings available.* Sold as a PairOutside Diameter: 0.897in. / Std.Inside Diameter: 0.788in.Overall Length: 1.065in.* Replaces OEM # 24334-36 *“On Line […]

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]]> Our Manganese Bronze wrist pin bushings continue to Perform under the most demanding conditions. These bushings are made to exact tolerances and will meet or exceed fitment and wear ability of all other replacement style bushings available.

* Sold as a Pair

Outside Diameter: 0.897in. / Std.

Inside Diameter: 0.788in.

Overall Length: 1.065in.

* Replaces OEM # 24334-36

*“On Line Shopping Only

The post KPM Wristpin Bushing. Fits Big Twin 1936-1999 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> KPM Wrist Pin Bushing. Fits Sportster 1954-2021 & WLA 1936-1973 https://birdsbitz.com.au/online-shop/engine/cylinders-pistons/cylinders-pistons-vintage/kpm-wrist-pin-bushing-fits-sportster-1954-2021-wla-1936-1973/ Sun, 10 May 2026 15:03:01 +0000 https://birdsbitz.com.au/online-shop/uncategorised/kpm-wrist-pin-bushing-fits-sportster-1954-2021-wla-1936-1973/ Our Manganese Bronze wrist pin bushings continue to Perform under the most demanding conditions. These bushings are made to exact tolerances and will meet or exceed fitment and wear ability of all other replacement style bushings available.* Sold EachOutside Diameter: 0.897in. / Std.Inside Diameter: 0.788in.Overall Length: 0.945in.* Replaces OEM # 24331-36 *“On Line Shopping Only

The post KPM Wrist Pin Bushing. Fits Sportster 1954-2021 & WLA 1936-1973 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Our Manganese Bronze wrist pin bushings continue to Perform under the most demanding conditions. These bushings are made to exact tolerances and will meet or exceed fitment and wear ability of all other replacement style bushings available.

* Sold Each

Outside Diameter: 0.897in. / Std.

Inside Diameter: 0.788in.

Overall Length: 0.945in.

* Replaces OEM # 24331-36

*“On Line Shopping Only

The post KPM Wrist Pin Bushing. Fits Sportster 1954-2021 & WLA 1936-1973 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> CP Carrillo PISTONS .010 Pistons with 10.75:1 Compression Ratio. Fits Big Twin 2007-2017 with Screamin Eagle 120R Engine https://birdsbitz.com.au/online-shop/engine/cylinders-pistons/cylinders-pistons-t-cam/cp-carrillo-pistons-010-pistons-with-10-751-compression-ratio-fits-big-twin-2007-2017-with-120r-engine/ Sun, 26 Apr 2026 15:09:23 +0000 https://birdsbitz.com.au/online-shop/uncategorised/cp-carrillo-pistons-010-pistons-with-10-751-compression-ratio-fits-big-twin-2007-2017-with-120r-engine/ Features & Benefits:-* ID # 6918* Bore = 4.070in. * Stroke = 4.625in.* Fully CNC machined* Balanced to +/- 1 gram* Double forced pin oilers* Forged from high strength 2618 alloy* Designed for maximum performance, horsepower and reliability* Complete kit includes two pistons, ring sets, wrist pins and clipsSuggested Additional Purchase:-Top End Gasket Kit # […]

The post CP Carrillo PISTONS .010 Pistons with 10.75:1 Compression Ratio. Fits Big Twin 2007-2017 with Screamin Eagle 120R Engine appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Features & Benefits:-

* ID # 6918

* Bore = 4.070in.

* Stroke = 4.625in.

* Fully CNC machined

* Balanced to +/- 1 gram

* Double forced pin oilers

* Forged from high strength 2618 alloy

* Designed for maximum performance, horsepower and reliability

* Complete kit includes two pistons, ring sets, wrist pins and clips

Suggested Additional Purchase:-

Top End Gasket Kit # CG-C10082

Tech Tips:-

* Follow ring end gap and piston to cylinder clearances as per the supplied manufacturers instructions

* Pull the engine down first & measure the existing bore to determine if oversize pistons are required PRIOR to purchase, we do not take back piston kits. The onus is on the assembling technician to validate the cylinders & required pistons.

Proudly made in the USA by CP Carrillo Pistons!

*“On Line Shopping Only

The post CP Carrillo PISTONS .010 Pistons with 10.75:1 Compression Ratio. Fits Big Twin 2007-2017 with Screamin Eagle 120R Engine appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> CP Carrillo PISTONS Std Pistons with 10.75:1 Compression Ratio. Fits Big Twin 2007-2017 with Screamin Eagle 120R Engine https://birdsbitz.com.au/online-shop/engine/cylinders-pistons/cylinders-pistons-t-cam/cp-carrillo-pistons-std-pistons-with-10-751-compression-ratio-fits-big-twin-2007-2017-with-120r-engine/ Sun, 26 Apr 2026 15:09:23 +0000 https://birdsbitz.com.au/online-shop/uncategorised/cp-carrillo-pistons-std-pistons-with-10-751-compression-ratio-fits-big-twin-2007-2017-with-120r-engine/ Features & Benefits:-* ID # 6918* Bore = 4.060in. * Stroke = 4.625in.* Fully CNC machined* Balanced to +/- 1 gram* Double forced pin oilers* Forged from high strength 2618 alloy* Designed for maximum performance, horsepower and reliability* Complete kit includes two pistons, ring sets, wrist pins and clipsSuggested Additional Purchase:-Top End Gasket Kit # […]

The post CP Carrillo PISTONS Std Pistons with 10.75:1 Compression Ratio. Fits Big Twin 2007-2017 with Screamin Eagle 120R Engine appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Features & Benefits:-

* ID # 6918

* Bore = 4.060in.

* Stroke = 4.625in.

* Fully CNC machined

* Balanced to +/- 1 gram

* Double forced pin oilers

* Forged from high strength 2618 alloy

* Designed for maximum performance, horsepower and reliability

* Complete kit includes two pistons, ring sets, wrist pins and clips

Suggested Additional Purchase:-

Top End Gasket Kit # CG-C10082

Tech Tips:-

* Follow ring end gap and piston to cylinder clearances as per the supplied manufacturers instructions

* Pull the engine down first & measure the existing bore to determine if oversize pistons are required PRIOR to purchase, we do not take back piston kits. The onus is on the assembling technician to validate the cylinders & required pistons.

Proudly made in the USA by CP Carrillo Pistons!

*“On Line Shopping Only

The post CP Carrillo PISTONS Std Pistons with 10.75:1 Compression Ratio. Fits Big Twin 2007-2017 with Screamin Eagle 120R Engine appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> KEITH BLACK PISTONS Replacement Piston Pin Lock – Sold Each. Fits KB Milwaukee-Eight Pistons https://birdsbitz.com.au/online-shop/engine/cylinders-pistons/cylinders-pistons-vintage/keith-black-pistons-replacement-piston-pin-lock-sold-each-fits-kb-milwaukee-eight-pistons/ Sun, 19 Apr 2026 15:13:59 +0000 https://birdsbitz.com.au/online-shop/uncategorised/keith-black-pistons-replacement-piston-pin-lock-sold-each-fits-kb-milwaukee-eight-pistons/ * Sold Each, Typically 4 Required *“On Line Shopping Only

The post KEITH BLACK PISTONS Replacement Piston Pin Lock – Sold Each. Fits KB Milwaukee-Eight Pistons appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> * Sold Each, Typically 4 Required

*“On Line Shopping Only

The post KEITH BLACK PISTONS Replacement Piston Pin Lock – Sold Each. Fits KB Milwaukee-Eight Pistons appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> CP Carrillo PISTONS +.010in. Pistons with 11.5:1 Compression Ratio. Fits 121ci CVO Touring 2023up https://birdsbitz.com.au/online-shop/engine/cylinders-pistons/cylinders-pistons-m8/cp-carrillo-pistons-010in-pistons-with-11-51-compression-ratio-fits-121ci-cvo-touring-2023up/ Thu, 12 Feb 2026 16:22:33 +0000 https://birdsbitz.com.au/online-shop/uncategorised/cp-carrillo-pistons-010in-pistons-with-11-51-compression-ratio-fits-121ci-cvo-touring-2023up/ Features & Benefits:-* The ring pack has been moved down 0.080in. to prevent the breakage issues the Stock HD cast pistons are having.* Bore = 4.085in. * Stroke = 4.625in.* Fully CNC machined* Balanced to +/- 1 gram* Double forced pin oilers* Forged from high strength 2618 alloy* Designed for maximum performance, horsepower and reliability* […]

The post CP Carrillo PISTONS +.010in. Pistons with 11.5:1 Compression Ratio. Fits 121ci CVO Touring 2023up appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Features & Benefits:-

* The ring pack has been moved down 0.080in. to prevent the breakage issues the Stock HD cast pistons are having.

* Bore = 4.085in.

* Stroke = 4.625in.

* Fully CNC machined

* Balanced to +/- 1 gram

* Double forced pin oilers

* Forged from high strength 2618 alloy

* Designed for maximum performance, horsepower and reliability

* Complete kit includes two pistons, ring sets, wrist pins and clips

* This piston kit requires the OEM cylinder to be professionally sized to suit the + 0.010in. oversize pistons. CP Carrillo prefers The OEM cylinders be bored for a straighter bore and improved surface finishes with benefits of improved ring seal for increased power and durability.

Tech Tips:-

* Follow ring end gap and piston to cylinder clearances as per the supplied manufacturers instructions

* Pull the engine down first & measure the existing bore to determine if oversize pistons are required PRIOR to purchase, we do not take back piston kits. The onus is on the assembling technician to validate the cylinders & required pistons.

Proudly made in the USA by CP Carrillo Pistons!

*“On Line Shopping Only

The post CP Carrillo PISTONS +.010in. Pistons with 11.5:1 Compression Ratio. Fits 121ci CVO Touring 2023up appeared first on Birds Bitz Motorcycle Parts & Accessories.

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