Original Equipment Manufacturer (OEM) Harley-Davidson Sportster 29-Tooth Front Transmission Belt Drive Pulley.
Part Number: 40409-04
Tooth Count: 29T
Includes: (1) Factory Retainer Lockplate & (2) Mounting Allen Screws [1, 2, 3]
Up for sale is a genuine factory Harley-Davidson main shaft front output belt drive sprocket removed directly from a modern rubber-mounted Sportster model. This is an authentic US-made heavy steel casting, featuring the factory splines and face guides. It comes complete with the matching diamond-pattern lockplate mechanism and both locking fasteners as shown in the product photos. This is the perfect direct swap to replace a grooved or damaged output pulley, or to adjust your gearing configuration.
🏍️ Fitment & Vehicle Compatibility:
Direct factory drop-in application for the following 5-speed belt-driven Harley platforms: [1]
Harley-Davidson Sportster Evolution Models (883cc & 1200cc): Fits all standard XL, XLH, Custom, Iron, Nightster, Low, Forty-Eight, and Seventy-Two models from 2004 to 2022. [1, 2, 3]
Cross-Tuning Fitment: Can also be used as a mechanical gearing alteration on select 1991–2003 rigid-mount Sportster models looking to modify off-the-line acceleration or highway cruising RPM bands. [1]
🔍 Condition Notes:
This is a used takeoff motorcycle drivetrain component. The internal transmission mainshaft splines are exceptionally clean, sharp, and deep with zero wallowing or excessive slap wear. The outer belt drive teeth show a healthy, uniform profile free of sharp hooking, rock gouges, or severe tracking grooves. The unit displays normal superficial surface coloration and typical cosmetic oxidation spots from road use (as clearly detailed in the images), but it is entirely structurally sound and ready for installation. [1]
Fast shipping with tracking included. Please count your belt teeth and verify your mainshaft spline configuration prior to purchasing to guarantee a perfect install.
Original Equipment Manufacturer (OEM) Harley-Davidson Shovelhead Front Tappet Lifter Block bundled with a set of four (4) Sifton High-Performance Hydraulic Lifter Tappets. []
Lifter Block Casting Number: 18610-66 (Front Position Only)
Lifter Brand: Sifton Specialty Valvetrain
Mileage: Approximately 8,000 miles of total run-time [1]
Up for sale is a premium vintage engine component takeoff bundle perfect for your classic Big Twin Shovelhead overhaul or chopper project. This listing features a solid, genuine factory cast iron front cylinder lifter block housing paired with a matched set of 4 premium Sifton hydraulic lifters. Having only seen around 8k miles of road use, these components have plenty of service life left and offer a substantial upgrade over standard stock configurations. []
🏍️ Fitment & Vehicle Compatibility:
Direct drop-in mechanical assembly for classic 74 cubic inch (1200cc) and 80 cubic inch (1340cc) Harley Shovelhead platforms running hydraulic valvetrains:
Harley-Davidson Shovelhead: Fits all electric and kick-start FL, FLH, FX, FXE, FXS, and FXWG models from 1966 to 1984. [1, 2]
🔍 Condition Notes:
This is a clean, low-mileage used vintage assembly set.
The Lifter Block: The OEM cast iron housing is structural, completely sound, and free from any cracks, chips, or hairline fractures along the mounting bolt tabs. Bores are smooth and free of ridge scoring.
The Sifton Lifters: All four hydraulic units feature excellent roller wheels that spin completely smooth and tight without flat spots or excessive lateral play. Please Note: One (1) of the Sifton assemblies is currently missing its internal adjustable pushrod screw socket piece. You will need to transfer over your existing adjuster screw to make the set complete.
Fast shipping with tracking included. Please review all photos to confirm your configuration before purchasing.
Brand New Old Stock (NOS) Biker's Choice Electric Starter Shaft Shifter Collar.
Part Number: 490516
Harley-Davidson OEM Cross-Reference: 31503-70
Country of Manufacture: Taiwan [1, 2]
Up for sale is a brand new, new-old-stock Starter Shaft Shifter Collar distributed by Biker's Choice. This precision steel collar is an exact mechanical reproduction of the original factory Harley components used in the primary drive starter linkage assembly on classic 4-speed Big Twin models. [1, 2]
If your starter mechanism is binding or the starter arm fork isn't sliding the pinion drive smoothly along the main shaft, a worn or grooved collar is usually the culprit. Replacing it with this heavy-duty, wear-resistant steel sleeve restores factory-crisp engagement every time you push the starter button.
🏍️ Fitment & Vehicle Compatibility:
Direct replacement drop-in application for classic 1200cc / 1340cc (74ci and 80ci) Harley-Davidson 4-speed Big Twins running electric start: [1]
Harley FLH / FL Series Electra Glide: 1970–1984
Harley FX Series Super Glide / Low Rider / Wide Glide: 1971–1984
Harley FXST / FLST Early Softail: 1984–1985 [1]
📦 Condition Notes:
This item is genuine New Old Stock (NOS). It is completely unused, never installed on a motorcycle transmission housing, and the polished thrust surfaces are flawless. The collar remains sealed inside its original Biker's Choice retail card hanger package. The outer cardboard header displays light shelf-wear and dust from storage, but the internal hardware is pristine and ready to mount.
Fast shipping with tracking included. Please cross-reference your factory parts manual to confirm part number 31503-70 fits your exact primary housing configuration before purchasing. [1, 2]
Brand New Factory New Old Stock — Lifestyle Powersports Performance Intake
Up for sale is a brand new, NOS pair (2 units) of Vulcan Engineering Mechanical Cable-Actuated Compression Release Valves. Engineered for high-performance builds, these industrial-grade mechanisms link directly to a remote handlebar lever or dual-cable actuator setup, entirely removing the risk of burning your fingers on hot cylinder heads.
Product Specifications:
Brand: Vulcan Engineering Company / Vulcan Works
Thread Size: 10mm x 1.0 (Note: Installation requires a 13mm hex tool)
Material: All-Stainless Steel machined framework
Actuation Type: Remote cable-pulled (Not a thumb-button style)
Venting: Side-exhaust bleeding ports to vent pressure away from spark plugs
Condition: Pristine New Old Stock (NOS) in original factory packaging
Fitment Application:These valves are designed specifically for high-compression Harley-Davidson Evolution, Shovelhead, Panhead, and Twin Cam motors. They are typically installed into custom-machined auxiliary ports .650" deep to match the 10mm thread length.
Up for sale is a brand new, vintage new-old-stock (NOS) Samson Motorcycle Products Evo Flange Kit, part number A-143 . This premium hardware kit is engineered as a high-strength replacement system for mounting exhaust headers onto classic Evolution-era V-Twin engines.
The flanges are precision-stamped from heavy-gauge steel to resist warping, distortion, and exhaust leaks under high thermal stress. This vintage kit retains its factory cardboard presentation with an original production/packaging date of October 19, 2007
Specifications & Features:
Brand: Samson Motorcycle Products, Inc.
Part Number: A-143
Description: Kit Evo Flange Kit
Condition: New old stock (NOS) in original labeled retail box
Packaged Date: 10/19/07
Origin: Proudly Made in the US
Vehicle Fitment & Compatibility:This kit is designed specifically for Harley-Davidson Evolution 80 cubic inch (Evo) Big Twin modelsmanufactured from 1984 through 1999. It works with aftermarket Samson pipes (such as Big Guns or True Duals) as well as various custom or standard configurations utilizing stock Evo port dimensions
Restore smooth drivetrain operation and precision gear alignment in your vintage transmission with this high-quality set of mainshaft roller bearing washers.Key Features:
Condition: 100% Brand New.
Quantity: Convenient 3-Pack set for full transmission service.
Precision Manufacturing: Engineered by Eastern Motorcycle Parts to meet or exceed original equipment specifications for fit and finish.
Durable Materials: Constructed from high-strength steel to withstand the mechanical stress of high-torque vintage engines.
Fitment & Compatibility:
Harley-Davidson Sportster: Fits 900cc XLH and other 4-speed models from 1957 to 1984.
Harley-Davidson K Model: Fits 1954-1956 KH and KHK 900cc models.
Cross Reference: Directly replaces Harley-Davidson factory OEM part #35363-52.
Why Choose Eastern Motorcycle Parts?
Specialized in vintage American motorcycle components since 1970.
Essential for maintaining proper end-play and spacing in the mainshaft and roller bearing system.
Trusted by professional builders for reliable performance in street and restoration applications.
Maintain reliable primary drive performance and eliminate internal case slapping with this complete manual primary chain adjuster assembly.This item includes the heavy-duty serrated steel mount bracket (V-Twin 18-3218) bundled together with the replacement nylon tensioner shoe pad to offer a complete hardware solution.Key Features:
Condition: 100% Brand New.
Serrated Back Design: Features a precision-machined serrated back surface on the bracket to guarantee rock-solid, slip-free height locking under high-torque conditions.
Nylon Wear Shoe Pad: Crafted from high-density, low-friction nylon to reduce drag, minimize chain wear, and quiet drivetrain noise.
Complete Combo Setup: Includes both the steel mounting bracket and the compatible primary drive chain tensioner pad.
Fitment & Compatibility:
Harley-Davidson Big Twin: Fits 4-speed and 5-speed models spanning 1965 to 2000 (including Shovelhead, Evolution, and early Twin Cam architectures).
Model Families: Compatible with Harley FL, FX, FXST, FLST, FLT, FXR, and FXD models.
Cross Reference: Bracket directly replaces factory Harley-Davidson OEM part #39990-65.
Why Choose This Assembly?
Full manufacturer warranty included.
Combines the critical structural mounting plate with the physical wear item in one convenient package.
Essential update to fix uneven chain tracking or sloppy adjustments inside your inner primary housing.
Restore proper gear clearance and smooth shifting mechanics in your vintage 4-speed transmission with this precision-ground undersized shifter fork.Key Features:
Condition: 100% Brand New.
Genuine Quality: Authentic, 100% Genuine V-Twin Manufacturing part.
Material: Heavy-duty forged steel construction for long-term durability.
Sizing Specification: -.030" Undersized variation to allow exact shimming and side-play adjustment.
Fitment & Compatibility:
Harley-Davidson Sportster: Fits 4-Speed XL models from 1957 to 1990.
Harley-Davidson K Model: Fits K, KH, and KHK models from 1952 to 1956.
Cross Reference: Directly replaces Harley-Davidson OEM part #34297-87.
Why Choose This Fork?
Full manufacturer warranty included.
Crucial component for fine-tuning gear spacing during transmission rebuilds.
Eliminate sluggish gear engagement or popping out of gear under heavy acceleration.
Maintain critical oil flow in your vintage or modern Harley engine with these precision-engineered drive gear keys.Key Features:
Condition: 100% Brand New.
Quantity: 10-Pack (Bulk Value Set).
Quality: Proudly Made in the USA by Bender Cycle.
Manufacturer: Bender Cycle Machine (MFR Part No: 2270).
Fitment & Compatibility:
Harley-Davidson Sportster: Fits 1988–2021 XL models.
Harley-Davidson Evo Big Twin: Fits 1991–1999 Evolution models.
Cross Reference: Directly replaces Harley OEM part #11219.
Why Choose Bender Cycle?
Precision-machined to meet or exceed original equipment specifications.
Full manufacturer warranty included.
Perfect for professional shop use or comprehensive engine restorations.
Achieve precise engine timing and optimal cam end play with this high-quality .005" cam shim, essential for vintage Harley-Davidson rebuilds.Key Features:
Condition: 100% Brand New.
Thickness: Precision-measured at .005".
Application: Specifically designed for gear shimming during new cam installations.
Quality: Genuine Mid-USA replacement part (Mfg #2250).
Fitment & Compatibility:
Harley-Davidson Sportster: Fits 900cc and 1000cc XL models from 1957 to 1985.
Harley-Davidson K Model: Fits K, KH, and KHK models from 1952 to 1956.
45ci Flathead Sidevalve: Compatible with all years of 45" engines including W, WL, and G models.
Cross Reference: Directly replaces Harley-Davidson OEM part #6770.
Why Choose Mid-USA?
Precise Fitment: Fits #1, #3, and #4 cams for XL and Flathead models.
Durability: Manufactured to meet or exceed original equipment standards for vintage engine maintenance.
Expert Preferred: A must-have component when setting up gear case end play (standard acceptable range is .001" to .005").
Precision-engineered to restore smooth transmission operation, this comprehensive thrust washer set is essential for your vintage 4-speed rebuild.Key Features:
Condition: 100% Brand New in original retail packaging.
Manufacturer: Eastern Motorcycle Parts (Made in the USA).
Quantity: 15-Piece Set.
Design: Full complement of right-side transmission mainshaft washers.
Fitment & Compatibility:
Harley-Davidson Sportster: Fits 900cc/1000cc models from 1957 to 1984 (XL, XLH, XLCH, XLCR, XLS, XLX, XR, XLT).
Harley-Davidson K Model: Fits 900cc K, KH, and KHK models from 1954 to 1956.
Style: Specifically for 4-Speed transmission setups.
Why Use This Set?
Comprehensive Range: Includes 15 washers in thicknesses from .030" to .125" (0.76 mm - 3.18 mm) to ensure perfect spacing.
OEM Replacement: High-quality replacement for original equipment numbers including 35349-52 and 35326-73.
Trusted Quality: Designed for street riding styles, offering high-performance street reliability for classic restorations.
Maintain smooth and reliable shifting in your vintage Sportster with this premium, USA-made shifter shaft bushing from V-Twin Manufacturing.Key Features:
Condition: 100% Brand New.
Manufacturer: Genuine V-Twin Manufacturing.
Origin: Proudly Made in the USA.
Construction: High-quality replacement for improved shifting performance and reduced play.
Fitment & Compatibility:
Harley-Davidson Sportster: Fits XL models from 1975 to 1976.
Cross Reference: Directly replaces Harley-Davidson OEM part #34037-75.
Why Choose This Bushing?
Full manufacturer warranty included.
Engineered for a precise, OEM-like fit to restore your classic transmission.
Trusted by builders for high-quality restoration of mid-70s AMF-era Sportsters.
Restore the smooth engagement of your vintage Harley-Davidson with this premium clutch hub bearing from Eastern Motorcycle Parts.Key Features:
Condition: 100% Brand New.
Manufacturer: Eastern Motorcycle Parts (MPN: A-37722-52).
Design: High-quality Torrington-style ball bearing.
Quality: Meets or exceeds original equipment standards for precision and durability.
Fitment & Compatibility:
Harley-Davidson Sportster: Fits XL models from 1957 to 1970, including XLCH and XLH900.
Harley-Davidson K Model: Fits KHRTT, KR, and KRTT models from 1957 to 1964.
Specialty Models: Compatible with XLR (1959–1960) and XLRTT (1958–1966).
Cross Reference: Directly replaces Harley OEM part #37722-52.
Installation & Performance:
Essential for reducing friction and providing optimal support to the clutch hub during gear engagement.
Designed for a perfect fit to maintain the integrity of your classic 900cc Sportster clutch system.
Trusted by professional mechanics for consistent performance in high-stress vintage builds.
Upgrade your vintage Sportster's transmission with this high-quality, long-lasting clutch disc bearing.Key Features:
Condition: 100% Brand New.
Manufacturer: Genuine V-Twin Manufacturing.
Construction: High-quality hardened steel bearing for maximum reliability.
Design: Includes 2 built-in shields to protect internal components from debris.
Fitment & Compatibility:
Harley-Davidson Sportster: Fits XL models from 1971 to 1983.
OEM Reference: Direct replacement for Harley-Davidson OEM part #9073.
Why Choose V-Twin?
Hardened steel design significantly improves long-term reliability.
Full manufacturer warranty included.
Precision-engineered for a seamless, bolt-on fit in classic transmissions.
Ensure peak transmission performance in your vintage Harley-Davidson with this high-quality, open-end countershaft needle bearing.Key Features:
Condition: 100% Brand New.
Design: Open-end type featuring a full complement roller design for maximum load capacity.
Precision Specs: Measures approximately 1.002" Outer Diameter, 0.758" Inner Diameter, and 0.753" Width.
Quality: Genuine V-Twin Manufacturing part (VT No: 12-0327).
Fitment & Compatibility:
Harley-Davidson K Model: Fits 1952–1956 models.
Harley-Davidson FL & FX: Fits 1976–1984 4-speed Big Twin models.
Harley-Davidson Sportster (XL): Fits 1976–1984 models.
Cross Reference: Directly replaces Harley OEM part #35961-52.
Why Choose This Bearing?
Durability: Full complement rollers provide superior support for high-stress countershaft applications.
Fit: Manufactured to meet or exceed original equipment specifications for a precise fit.
Reliability: Trusted by professional builders for restoring classic 4-speed transmissions.
Secure your transmission assembly with this premium, high-strength mainshaft retaining ring set from V-Twin Manufacturing.Key Features:
Condition: 100% Brand New.
Quantity: 10-Pack Bulk Set.
Genuine Quality: Authentic V-Twin Manufacturing part.
Origin: Proudly Made in the USA.
Fitment & Compatibility:
Harley-Davidson Sportster: Fits XL models from 1957 to 1985.
Harley-Davidson K Model: Fits 1952 to 1956 models.
Cross Reference: Directly replaces Harley OEM part #35113-52.
Application Details:
Specifically designed as a transmission mainshaft retainer ring for classic 4-speed transmissions.
Crucial for securing components like the mainshaft 2nd gear within the assembly.
Full manufacturer warranty included for peace of mind.
Ensure precise shifting and proper transmission alignment with this high-quality, USA-made shifter pawl support shim kit.Key Features:
Condition: 100% Brand New.
Quantity: 7-Pack (Bulk Value Set).
Quality: 100% Made in the USA.
Manufacturer: Genuine V-Twin Manufacturing.
Fitment & Compatibility:
Harley-Davidson Sportster: Fits 4-speed XL models from 1966 to 1984.
Cross Reference: Directly replaces Harley OEM part# 35891-66.
Why Use This Part?
Specifically designed for 4-speed transmission shifter pawl support.
Provides the necessary spacing for smooth, reliable gear engagement.
Essential hardware for professional transmission rebuilds and restorations.
Ensure a smooth restoration with this premium, high-strength needle bearing from Eastern Motorcycle Parts.Key Features:
Condition: 100% Brand New.
Manufacturer: Eastern Motorcycle Parts.
Part Type: High-quality needle bearing for transmission/crankcase applications.
Engineering: Designed for durability in high-vibration motorcycle environments.
Fitment & Compatibility:
Harley-Davidson Sportster: Fits XL models from 1954 to 1985.
Harley-Davidson Big Twin: Fits 4-speed Big Twin models from 1978 to 1984.
Cross Reference: Directly replaces Harley OEM part #35961-52.
Why Choose Eastern Parts?
Direct replacement for a precise, hassle-free installation.
Manufactured to meet or exceed original equipment specifications.
Trusted by builders and mechanics for vintage Harley-Davidson maintenance.
Stock your shop with this 10-piece bulk pack of high-quality sprocket shaft retaining rings for vintage Harley-Davidson builds.Key Features:
Condition: 100% Brand New.
Quantity: 10-Pack (Bulk Value Set).
Manufacturer: Genuine V-Twin Manufacturing.
Type: Sprocket Shaft / Main Bearing Snap Ring.
Fitment & Compatibility:
Harley-Davidson Sportster: Fits XL models from 1957 to 1976.
Harley-Davidson K Model: Fits K and KH models from 1954 to 1956.
Cross Reference: Directly replaces H-D OEM part# 24701-52.
Why This Kit?
Ensures secure main bearing placement on the sprocket shaft.
Precision manufactured for a tight, reliable fit.
Perfect for professional mechanics or extensive restorations.
Restore your vintage Harley-Davidson with precision-engineered components designed for a perfect fit.Key Features:
Condition: 100% Brand New.
Genuine Quality: Authentic V-Twin Manufacturing part.
High Performance: Includes 13 premium Torrington standard roller bearings.
Precision Specs: Each bearing measures .1875 x .800.
Fitment & Compatibility:
Harley-Davidson FL: Fits 1955, 1956, and 1957 models.
Cross Reference: Directly replaces OEM part# 9421.
Application: Ideal for right-side crank case and pinion shaft restoration.
Why Shop With Us?
Full manufacturer warranty included.
Sold as a complete 13-pack set (VT No: 10-0326).
Imported quality from a trusted name in vintage H-D parts.
Genuine V-Twin Manufacturing Crankcase Roller Bearing Set (.0004" Oversize) – Fits Vintage Harley-Davidson FL, FS & XL Sportster (1955–1976)
Rebuild your vintage Harley bottom-end with the precision it deserves. This brand-new, old-stock set of 13 crankcase roller bearings is manufactured by V-Twin Manufacturing (Part Number 10-0328) to deliver exact clearances for your classic Panhead, Shovelhead, or Ironhead Sportster engine.
Featuring a .0004" oversize specification, this set is specifically designed for engine builders looking to correct clearance issues on worn or machined bearing races, restoring smooth operation and stabilizing your flywheel assembly.
Product Features
Premium Grade Construction: Engineered from high-strength bearing steel hardened to withstand extreme bottom-end rotational forces and high heat.
Precision Sizing: Sized at .0004" oversize to allow for exact engine blueprinted clearances.
Complete Engine Builder's Set: Contains exactly 13 precision-matched roller bearings.
Authentic Vintage Stock: Genuine V-Twin Manufacturing premium replacement hardware.
Exact Vehicle Compatibility
Harley-Davidson FL / FS / Hydra Glide: 1955–1957
Sportster XL 900: 1957–1971
Sportster XLH 900: 1967–1971
Sportster XLCH 1000: 1972–1976
Sportster XLH 1000: 1972–1976
Note: Please check the product photo to verify condition and packaging style before purchasing.
Premium Mainshaft / Countershaft Transmission Needle Bearing for Harley-Davidson Evolution, Shovelhead, K-Model & Sportster
Restore precise shaft alignment and eliminate gear play with this premium transmission needle roller bearing. Manufactured by V-Twin Manufacturing, this high-grade bearing is engineered specifically to handle severe radial loads, high-RPM environments, and intense gearbox vibrations. It is an essential component for any professional vintage transmission rebuild or routine service.
Engineered for Classic Powertrains
High-Load Capacity: Drawn cup design houses precision-ground needle rollers to maximize contact area, lowering friction and absorbing heavy shifting stress.
Premium Hardened Steel: Built from premium-grade bearing steel for exceptional resilience, minimal wear, and a prolonged service life.
Exact Factory Tolerances: Crafted to meet or exceed original equipment guidelines to prevent gear slop and ensure smooth shifting.
Part Numbers & Cross References
V-Twin Manufacturing Part Number: 12-0327
Harley-Davidson OEM Cross Reference: 35961-52
Vehicle Fitment & Compatibility
Fits a massive historical range of classic Harley-Davidson platforms across big twins, cruisers, and lightweights:
Big Twin Models: Fits various Shovelhead and early Evolution (Evo) 4-speed and 5-speed assemblies (including FL, FLH, FX, FXE, FXWG series).
Sportster & K-Models: Fits 1952–1956 K-Models and vintage XL Sportster 4-speed transmission mainshaft/countershaft gears requiring the 35961-52 spec.
SEO
Keep your vintage powertrain secure with this brand new kick starter shaft hex nut from V-Twin Manufacturing. Precision-engineered to exact factory specifications, this premium replacement fastener provides a rugged, worry-free lock for your classic kicker assembly. Avoid the risks of loose starter shafts and stripped gears by choosing high-grade hardware built for the vibrations of traditional Ironhead engines.
Product Features
Premium Construction: Machined from high-tensile steel to prevent cross-threading and resist heavy compression torque.
Factory-Spec Dimensions: Sized precisely at 1/2"-20 thread pitch x 9/32" thickness x 1-3/16" hex width for a seamless wrench fit.
Perfect OEM Replacement: Cross-references exactly to factory part number OEM 7926.
Vehicle Fitment & Technical Details
Manufacturer Part Number (MPN): 12-0528
OEM Part Number Cross Reference: 7926
Compatible Models: Tailored specifically for Harley-Davidson XLCH 900 and XLCH 1000 Sportstermodels built between 1957 and 1979.
