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Crankshaft

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1986 suzuki alt125
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Quick answer: The Crankshaft for the 1986 1986 suzuki alt125 (ATV) consists of 20 OEM components. 17 are currently matched to live Amazon/eBay listings, priced from $1.17–$119.99.
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BEARING, RH

This NOS OEM crankshaft case bearing is engineered for Suzuki ALT125 and ALT185 motorcycle models, ensuring precision fitment and longevity. Manufactured to exacting standards, the bearing features a 12mm inner diameter, 28mm outer diameter, and 8mm width, providing optimal performance under demanding conditions.

Designed as a direct replacement for part number 09262-12004, this bearing maintains factory specifications for seamless integration with compatible engines. Constructed from high-grade materials, it delivers superior load-bearing capacity and resistance to wear, enhancing overall engine reliability.

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BEARING, M

This is the genuine OEM crankshaft bearing for select Suzuki models, including the RMX250, GN125, DR100, and SP200. Designed to meet strict OEM specifications, this bearing ensures optimal engine performance and durability by maintaining precise shaft alignment and reducing friction in critical moving components.

Engineered with a bore diameter of 28mm, an outer diameter of 68mm, and a width of 18mm, this bearing is precision-machined to fit seamlessly into the designated crankshaft housing. The part number 09262-28003 guarantees compatibility with Suzuki’s factory standards, providing a reliable replacement solution for worn or damaged bearings.

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OIL SEAL, LH

Suzuki OEM Part 09283-20037 SEAL, COUNTER SHAFT RH is an authentic replacement component designed for precise fitment and durability in compatible Suzuki models. Engineered to high OEM standards, this seal ensures optimal performance by preventing lubricant leakage at the counter shaft interface.

Constructed from high-quality rubber and metal reinforcement, the seal features a 25.0 mm inner diameter and a 38.0 mm outer diameter. It is designed for counter shaft right-hand applications, providing reliable sealing under operating conditions. The part is an exact match for Suzuki’s original specifications, ensuring seamless integration with OEM assemblies.

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CIRCLIP, RH

This OEM-quality Suzuki Snap Ring, engineered for precision-engineered applications, ensures reliable performance in critical powertrain components. Designed with durable metal construction and precision-machined edges, the ring maintains optimal clearance and prevents lateral movement of gears or shafts under operational stress. A direct-fit replacement part, it meets or exceeds Suzuki's original equipment specifications for dimensional accuracy and material integrity.

Certified for use in compatible Suzuki models, this snap ring features a uniform thickness of 1.2mm and a bore diameter of 45mm, providing a secure fit for transmission or differential assemblies. The ring is manufactured from high-grade steel with a tensile strength of 800 MPa, ensuring resistance to deformation and corrosion. Ideal for professional technicians performing routine maintenance or repair work, this part guarantees consistent performance in high-stress environments.

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GEAR, OIL PUMP DRIVE

This genuine Suzuki oil pump drive gear is engineered for the ALT125, LT125, and Quadrunner Trail Buddy models. Designed to ensure precise oil flow and reliable engine lubrication, it maintains optimal performance under demanding riding conditions. The drive gear is manufactured to Suzuki's stringent OEM standards, guaranteeing a perfect fit and durability for long-term use.

Compatible with the specified Suzuki models, this oil pump drive gear is a critical component for maintaining engine health. Its robust construction and accurate machining contribute to consistent oil pressure delivery, reducing wear on internal components and extending engine life. Install this high-quality replacement part to restore or upgrade your vehicle's lubrication system.

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PIN

This genuine NOS (New Old Stock) Suzuki Breaker Shaft Crank Pin, part number 06211-03052, is an exact replacement for select Suzuki motorcycle models. Engineered to original equipment manufacturer (OEM) specifications, this crank pin delivers precise fitment and reliable performance for restored or classic Suzuki motorcycles.

The crank pin is designed to integrate seamlessly with compatible Suzuki models, ensuring smooth operation of the breaker shaft assembly. Ideal for restoration projects or routine maintenance, this high-quality component maintains the precision required for optimal engine function. Please verify compatibility with your vehicle before purchase.

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PISTON (OS:1.0) *{OPT}*

This genuine SUZUKI OEM Piston (Part #12111-01420-100) is precision-engineered for optimal performance and durability in SUZUKI engines requiring a 1.0 over-size (O/S) specification. Manufactured to meet SUZUKI’s strict quality standards, it ensures precise fitment and reliable operation in high-compression applications.

Designed for compatibility with specified SUZUKI engine models, this piston is optimized for combustion efficiency and reduced friction. It is recommended for use in engines requiring a 1.0 O/S bore size, providing enhanced power output and longevity when paired with compatible cylinder components.

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PISTON (OS:0.5) *{OPT}*

This NOS (New Old Stock) Suzuki OEM piston is specifically designed for the LT125 and ALT125 models manufactured between 1983 and 1987. Precision-engineered to meet OEM specifications, this piston ensures optimal performance and reliability for your motorcycle's engine. The piston features a bore size of 57.50mm, providing a perfect fit for the designated models.

Manufactured to strict original equipment standards, this piston guarantees compatibility with the LT125 and ALT125 engines from the specified years. The part number 12111-01420-050 ensures accurate identification and replacement. Ideal for restoration projects or routine maintenance, this piston maintains the integrity and efficiency of your Suzuki motorcycle's powerplant.

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PISTON

This genuine OEM Suzuki piston is an exact replacement part for the LT125 ALT Dr 125 models manufactured between 1983 and 1987. Designed to meet OEM specifications, it ensures compatibility and reliability for engine rebuilds or repairs. The piston features a bore diameter of 57.75mm and a standard oversize of .075mm (12111-01420), providing precise fitment for optimal performance.

Manufactured to strict Suzuki quality standards, this piston is constructed from durable high-strength aluminum alloy, engineered to withstand high compression and thermal stress. It is a direct replacement for the original equipment, maintaining factory-level performance and longevity. Ideal for restoring or upgrading Suzuki LT125 engines from the specified model years.

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RING SET, PISTON (OS:1.0) *{OPT}*

This Suzuki Piston Ring Set (Part #12140-05211-100) is precision-engineered for optimal performance in DR125 and LT125 models. Designed with a 1.0mm oversize specification, it ensures proper sealing and compression for improved engine efficiency and longevity.

The ring set includes all necessary components for a complete installation, including the top compression ring, second compression ring, and oil ring assembly. Compatible with Suzuki DR125 and LT125 motorcycle engines, this high-quality replacement part maintains OEM standards for durability and fitment.

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RING SET, PISTON (OS:0.5) *{OPT}*

Precision-engineered NOS piston rings designed for Suzuki ALT125 models manufactured between 1983 and 1986. These replacement rings, part number 12140-05211-050, are engineered to OE (Original Equipment) specifications for optimal fit and performance. Each set includes three rings (.50mm gap), ensuring proper sealing and reduced blow-by for enhanced engine efficiency.

Manufactured from high-quality cast iron with a durable chrome-plated finish, these rings provide superior wear resistance and longevity. Ideal for restoring compression in high-mileage engines or during routine maintenance, they maintain strict tolerances for consistent power output and fuel economy. Compatible with Suzuki LT125 models as well.

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Ring Set, Piston

These NOS (New Old Stock) piston rings are engineered for Suzuki ALT125 (1982-1986) models, delivering precise fitment and optimal compression performance. Manufactured to OEM specifications, these rings ensure reliable sealing and reduced oil consumption, enhancing engine longevity and efficiency.

Each set includes 5 rings (.50 oversize) designed for the Suzuki LT125 engine series. Constructed from high-quality cast iron, these rings provide superior durability and wear resistance. Compatible with Suzuki models ALT125 and LT125 produced between 1982 and 1986, they are an essential upgrade for restoring or maintaining engine performance.

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PIN

This genuine Suzuki OEM pin, part number 12151-18902, is designed for direct-fit replacement in compatible Suzuki ATV models. Manufactured to original equipment standards, it ensures precise alignment and optimal performance in the vehicle's drivetrain system.

Compatible with the LT125, LT160, and LTF160 models, this pin offers reliable durability and maintains factory specifications for secure installation. Ideal for repairs or maintenance, it restores functionality while preserving the integrity of the original design.

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Circlip

Engineered to meet the highest standards of durability and performance, the NOS Genuine Suzuki 09381-14001 Snap Ring is designed for precision applications. Constructed from premium alloy steel, this snap ring provides reliable retention and resistance to vibration and thermal cycling, ensuring consistent operation in demanding automotive environments.

Installation is straightforward with a standard snap ring tool, allowing for rapid replacement or upgrade in both production and aftermarket settings. The component is fully compatible with Suzuki models requiring the 09381-14001 specification, delivering a seamless fit and optimal load distribution.

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Crankshaft Assy

This genuine OEM Suzuki ALT125 crankshaft, part number 12200-18905, is engineered for optimal performance in the 83-86 Suzuki LT125 models. Designed to meet strict manufacturer specifications, it ensures precise fitment and reliable operation in demanding riding conditions.

Manufactured to exact OEM standards, the crankshaft features a balanced design for smooth engine operation and reduced vibration. The high-quality steel construction provides durability and long-lasting performance, while the precision-machined components guarantee proper alignment and efficient power transfer. Ideal for repair or replacement, this crankshaft maintains the integrity of the Suzuki ALT125 drivetrain.

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Buy on eBay ($99.99)
.CRANKSHAFT, LH

This genuine Suzuki OEM crankshaft (Part #12261-18901) is engineered for the LT125 model, delivering precise fitment and optimal performance. Constructed from high-quality materials, the crankshaft ensures durable operation under demanding conditions, maintaining engine efficiency and power delivery.

Designed to meet Suzuki's stringent manufacturing standards, this crankshaft features standard dimensions and specifications required for direct replacement in compatible LT125 models. It is a critical component for restoring or upgrading engine performance with factory-grade reliability.

eBay Motors Stock Available

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Buy on eBay ($119.99)
BEARING, LH

This Suzuki OEM left-hand (LH) crankshaft bearing is a direct-fit replacement part designed for compatibility with models RM465 and RM500. Manufactured to Suzuki's strict OEM specifications, it ensures precise fitment and reliable performance, meeting the rigorous standards required for demanding riding conditions. The bearing is precision-engineered to maintain optimal engine operation by reducing friction and supporting the crankshaft's rotational movement.

Installation of this bearing is straightforward for those with mechanical experience, as it adheres to the original equipment manufacturer's design. This part is essential for maintaining engine integrity and longevity, particularly in high-performance or heavily used motorcycles. The bearing's durable construction contributes to smoother operation and extended engine life when used as a replacement in accordance with Suzuki's guidelines.

eBay Motors Stock Available

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Buy on eBay ($45.51)
Exact factory OEM # 12221-18903 may be temporarily out of stock in official store listings.
High Demand Part
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Exact factory OEM # 12200-05851 may be temporarily out of stock in official store listings.
High Demand Part
Search Aftermarket / Compatible Fits

Looking for a direct-fit replacement from a compatible aftermarket brand?

Browse Amazon Compatible Parts →
Search Live Auctions & Used OEM Stock

Find New-Old-Stock (NOS), open-box deals, or verified salvage teardown parts.

Search Live Listings on eBay →

Crankshaft — Frequently Asked Questions

What OEM parts are included in the Crankshaft for the 1986 suzuki alt125?

The Crankshaft for the 1986 suzuki alt125 includes 20 individual OEM components, each listed below with its exact OEM part number.

How much does the Crankshaft cost for the 1986 suzuki alt125?

Individual components in this assembly currently range from $1.17–$119.99, based on live Amazon and eBay listings. See the price comparison below for each part.

Will these OEM parts fit other 1986 suzuki alt125 model years or trims?

Manufacturers frequently reuse the same physical part across multiple model years and trims, so a given OEM part number can be compatible with more than just this exact vehicle — search the OEM number directly to see every vehicle it fits.

What is the OEM part number for BEARING, RH on the 1986 suzuki alt125?

The OEM part number for the BEARING, RH (part of the Crankshaft assembly) on the 1986 suzuki alt125 is 09262-12004.

Does OEM part 09262-12004 fit the 1986 suzuki alt125?

Yes — OEM 09262-12004 is listed as the BEARING, RH for the 1986 suzuki alt125 (1986), part of the Crankshaft assembly.

Which parts are included in the Crankshaft?

BEARING, RH, BEARING, M, OIL SEAL, LH, CIRCLIP, RH, GEAR, OIL PUMP DRIVE, PIN, PISTON (OS:1.0) *{OPT}*, PISTON (OS:0.5) *{OPT}*, and 12 more — see the full list below.

What other vehicles use OEM part number 09262-12004?

OEM 09262-12004 (BEARING, RH) also fits 13 other vehicles in this catalog, including 1983 suzuki alt125 — Crankshaft, 1983 suzuki lt125 — Crankshaft, 1984 suzuki alt125 — Crankshaft.

Cross-Marketplace Price Tracker
Compare total assembly price across Amazon Prime vs. eBay Certified Sellers.
Amazon Est. Total
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eBay Est. Total
$642.43