Transmission - BT 4 spd era | Birds Bitz https://birdsbitz.com.au/product-category/transmission-final-drive/transmission-bt-4-spd-era/ Aftermarket Harley Davidson Parts Store | Motorcycle Parts Brisbane | Birds Bitz Tue, 12 May 2026 15:11:21 +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 Transmission - BT 4 spd era | Birds Bitz https://birdsbitz.com.au/product-category/transmission-final-drive/transmission-bt-4-spd-era/ 32 32 Shifter Fork Shims 4 Speed 1935-1984 .007″ Pack 10 https://birdsbitz.com.au/online-shop/transmission-final-drive/transmission-bt-4-spd-era/transmission-internals-bt-4-spd-era/shifter-fork-shims-4-speed-1935-1984-007-pack-10/ Tue, 23 Sep 2025 03:59:48 +0000 https://birdsbitz.com.au/online-shop/uncategorised/shifter-fork-shims-4-speed-1935-1984-007-pack-10/ Shifter Fork Shims 4 Speed 1935-1984 .007" Pack 10

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]]> Shifter Fork Shims 4 Speed 1935-1984 .007″ Pack 10

The post Shifter Fork Shims 4 Speed 1935-1984 .007″ Pack 10 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Bearing Retaining Plate Fits 1936-1979 Replaces 35111-36 https://birdsbitz.com.au/online-shop/transmission-final-drive/transmission-bt-4-spd-era/transmission-internals-bt-4-spd-era/bearing-retaining-plate-fits-1936-1979-replaces-35111-36/ Tue, 23 Sep 2025 03:49:02 +0000 https://birdsbitz.com.au/online-shop/uncategorised/bearing-retaining-plate-fits-1936-1979-replaces-35111-36/ Bearing Retaining Plate Fits 1936-1979 Replaces 35111-36

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]]> Bearing Retaining Plate Fits 1936-1979 Replaces 35111-36

The post Bearing Retaining Plate Fits 1936-1979 Replaces 35111-36 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Bearing Washer Main Shaft Fits Big Twin 1937-1977 Replaces 35131-95 .055″ https://birdsbitz.com.au/online-shop/transmission-final-drive/transmission-bt-4-spd-era/transmission-internals-bt-4-spd-era/bearing-washer-main-shaft-fits-big-twin-1937-1977-replaces-35131-95-055/ Tue, 23 Sep 2025 03:49:02 +0000 https://birdsbitz.com.au/online-shop/uncategorised/bearing-washer-main-shaft-fits-big-twin-1937-1977-replaces-35131-95-055/ Bearing Washer Main Shaft Fits Big Twin 1937-1977 Replaces 35131-95 .055" (EACH)

The post Bearing Washer Main Shaft Fits Big Twin 1937-1977 Replaces 35131-95 .055″ appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Bearing Washer Main Shaft Fits Big Twin 1937-1977 Replaces 35131-95 .055″ (EACH)

The post Bearing Washer Main Shaft Fits Big Twin 1937-1977 Replaces 35131-95 .055″ appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Oil Deflector Kit Fits 1937-1977 Replaces 35160-80,35159-36,35211-36,35216-36 https://birdsbitz.com.au/online-shop/transmission-final-drive/transmission-bt-4-spd-era/transmission-internals-bt-4-spd-era/oil-deflector-kit-fits-1937-1977-replaces-35160-8035159-3635211-3635216-36/ Tue, 23 Sep 2025 03:49:02 +0000 https://birdsbitz.com.au/online-shop/uncategorised/oil-deflector-kit-fits-1937-1977-replaces-35160-8035159-3635211-3635216-36/ Oil Deflector Kit Fits 1937-1977 Replaces 35160-80,35159-36,35211-36,35216-36 Kit Includes Oil Deflector Nut & Lock Washer

The post Oil Deflector Kit Fits 1937-1977 Replaces 35160-80,35159-36,35211-36,35216-36 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Oil Deflector Kit Fits 1937-1977 Replaces 35160-80,35159-36,35211-36,35216-36 Kit Includes Oil Deflector Nut & Lock Washer

The post Oil Deflector Kit Fits 1937-1977 Replaces 35160-80,35159-36,35211-36,35216-36 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Mainshaft Drive Gear Spacer Big Twin 1938-E1977 4 Speed Replaces 35171-37 https://birdsbitz.com.au/online-shop/transmission-final-drive/transmission-bt-4-spd-era/transmission-internals-bt-4-spd-era/mainshaft-drive-gear-spacer-big-twin-1938-e1977-4-speed-replaces-35171-37/ Tue, 23 Sep 2025 03:49:02 +0000 https://birdsbitz.com.au/online-shop/uncategorised/mainshaft-drive-gear-spacer-big-twin-1938-e1977-4-speed-replaces-35171-37/ Mainshaft Drive Gear Spacer Big Twin 1938-E1977 4 Speed Replaces 35171-37

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]]> Mainshaft Drive Gear Spacer Big Twin 1938-E1977 4 Speed Replaces 35171-37

The post Mainshaft Drive Gear Spacer Big Twin 1938-E1977 4 Speed Replaces 35171-37 appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Clutch Release Arm Fits Big Twin’36-06 & UL’36-48 Replaces 37051-36 37052-65 Chrome https://birdsbitz.com.au/online-shop/transmission-final-drive/transmission-bt-4-spd-era/transmission-externals-bt-4-spd-era/clutch-release-arm-fits-big-twin36-06-ul36-48-replaces-37051-36-37052-65-chrome/ Tue, 23 Sep 2025 03:45:27 +0000 https://birdsbitz.com.au/online-shop/uncategorised/clutch-release-arm-fits-big-twin36-06-ul36-48-replaces-37051-36-37052-65-chrome/ Clutch Release Arm Fits Big Twin'36-06 & UL'36-48 Replaces 37051-36 37052-65 Chrome

The post Clutch Release Arm Fits Big Twin’36-06 & UL’36-48 Replaces 37051-36 37052-65 Chrome appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Clutch Release Arm Fits Big Twin’36-06 & UL’36-48 Replaces 37051-36 37052-65 Chrome

The post Clutch Release Arm Fits Big Twin’36-06 & UL’36-48 Replaces 37051-36 37052-65 Chrome appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Andrews Products Transmission Mainshaft. Fits 4Spd Big Twin Late 1984-1986 with OEM 4 Stud Wet Clutch. https://birdsbitz.com.au/online-shop/transmission-final-drive/transmission-bt-4-spd-era/transmission-internals-bt-4-spd-era/andrews-products-transmission-mainshaft-fits-4spd-big-twin-late-1984-1986-with-oem-4-stud-wet-clutch/ Tue, 23 Sep 2025 02:05:29 +0000 https://birdsbitz.com.au/online-shop/uncategorised/andrews-products-transmission-mainshaft-fits-4spd-big-twin-late-1984-1986-with-oem-4-stud-wet-clutch/ Features & Benefits:-* Made from high nickel alloy* Heat treated and shot-peened to give maximum durability & strength. * Replaces OEM # 35039-85 *“On Line Shopping Only

The post Andrews Products Transmission Mainshaft. Fits 4Spd Big Twin Late 1984-1986 with OEM 4 Stud Wet Clutch. appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Features & Benefits:-

* Made from high nickel alloy

* Heat treated and shot-peened to give maximum durability & strength.

* Replaces OEM # 35039-85

*“On Line Shopping Only

The post Andrews Products Transmission Mainshaft. Fits 4Spd Big Twin Late 1984-1986 with OEM 4 Stud Wet Clutch. appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Andrews Products Transmission Mainshaft. Fits 4Spd Big Twin 1970-Early 1984 with Chain Drive and OEM Dry Clutch. https://birdsbitz.com.au/online-shop/transmission-final-drive/transmission-bt-4-spd-era/transmission-internals-bt-4-spd-era/andrews-products-transmission-mainshaft-fits-4spd-big-twin-1970-early-1984-with-chain-drive-and-oem-dry-clutch/ Tue, 23 Sep 2025 02:05:05 +0000 https://birdsbitz.com.au/online-shop/uncategorised/andrews-products-transmission-mainshaft-fits-4spd-big-twin-1970-early-1984-with-chain-drive-and-oem-dry-clutch/ Features & Benefits:-* Made from high nickel alloy* Heat treated and shot-peened to give maximum durability & strength. * Replaces OEM # 35039-70A *“On Line Shopping Only

The post Andrews Products Transmission Mainshaft. Fits 4Spd Big Twin 1970-Early 1984 with Chain Drive and OEM Dry Clutch. appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Features & Benefits:-

* Made from high nickel alloy

* Heat treated and shot-peened to give maximum durability & strength.

* Replaces OEM # 35039-70A

*“On Line Shopping Only

The post Andrews Products Transmission Mainshaft. Fits 4Spd Big Twin 1970-Early 1984 with Chain Drive and OEM Dry Clutch. appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Andrews Products Transmission Mainshaft. Fits 4Spd Big Twin 1965-1969. https://birdsbitz.com.au/online-shop/transmission-final-drive/transmission-bt-4-spd-era/transmission-internals-bt-4-spd-era/andrews-products-transmission-mainshaft-fits-4spd-big-twin-1965-1969/ Tue, 23 Sep 2025 02:05:03 +0000 https://birdsbitz.com.au/online-shop/uncategorised/andrews-products-transmission-mainshaft-fits-4spd-big-twin-1965-1969/ Features & Benefits:-* Made from high nickel alloy* Heat treated and shot-peened to give maximum durability & strength. * Replaces OEM # 35039-65 *“On Line Shopping Only

The post Andrews Products Transmission Mainshaft. Fits 4Spd Big Twin 1965-1969. appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Features & Benefits:-

* Made from high nickel alloy

* Heat treated and shot-peened to give maximum durability & strength.

* Replaces OEM # 35039-65

*“On Line Shopping Only

The post Andrews Products Transmission Mainshaft. Fits 4Spd Big Twin 1965-1969. appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Andrews Products Transmission Mainshaft. Fits 4Spd Big Twin 1937-64. https://birdsbitz.com.au/online-shop/transmission-final-drive/transmission-bt-4-spd-era/transmission-internals-bt-4-spd-era/andrews-products-transmission-mainshaft-fits-4spd-big-twin-1937-64/ Tue, 23 Sep 2025 02:05:03 +0000 https://birdsbitz.com.au/online-shop/uncategorised/andrews-products-transmission-mainshaft-fits-4spd-big-twin-1937-64/ Features & Benefits:-* Made from high nickel alloy* Heat treated and shot-peened to give maximum durability & strength. * Replaces OEM # 35040-50 *“On Line Shopping Only

The post Andrews Products Transmission Mainshaft. Fits 4Spd Big Twin 1937-64. appeared first on Birds Bitz Motorcycle Parts & Accessories.

]]> Features & Benefits:-

* Made from high nickel alloy

* Heat treated and shot-peened to give maximum durability & strength.

* Replaces OEM # 35040-50

*“On Line Shopping Only

The post Andrews Products Transmission Mainshaft. Fits 4Spd Big Twin 1937-64. appeared first on Birds Bitz Motorcycle Parts & Accessories.

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