Are you looking for the best crankshaft gear assemblies? We provide tested options with durable builds and easy installation to ensure your engine runs smoothly.
Crankshaft gear assemblies are the heart of your engine. They keep your machine running smoothly and powerfully. Whether for cars, generators, or tools, the right part makes all the difference.
Choosing the best crankshaft gear assembly ensures long-lasting performance. It keeps your engine cool, balanced, and efficient. You’ll feel the difference in every ride or task.
We’ve tested and reviewed top options to guide you. From durable builds to easy installs, find the perfect fit for your needs. Let’s get your engine running like new!
List of Top 10 Crankshaft Gear Assemblies
| Image | Title | Best For | Price |
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Titan 704-173 or 704-173A or 704173 Crankshaft and Gear Assembly |
This crankshaft and gear assembly is perfect for anyone who wants a smooth-running Titan sprayer with strong, steady power. It’s great for people who need a fast, simple fix that keeps their tool working like new. |
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16T Crankshaft Assembly for GY6/QMB139 50cc to 80cc 4 stroke engines |
This part is perfect for riders, DIY mechanics, and engine tuners who want smooth power and strong performance with simple, direct fit. It suits anyone who wants a fast, steady, and reliable ride. |
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ThpeMakcr Timing Chain Gear Sprocket with Gasket Screw Replacement for Audi A4 A6 Q5 Q7 Volkswagen Tiguan # 06H103319Q |
This product is perfect for drivers who want a smooth, strong, and safe engine. It is great for anyone fixing or upgrading an Audi or Volkswagen. |
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GM Genuine Parts 12634113 Crankshaft Gear |
This part is perfect for drivers who want a strong, true-fit gear for their GM engine. It is great for anyone who wants real, tested, GM‑made quality. |
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Tapered Crankshaft, Engine Crankshaft kit, 5kw Single Cylinder Air Cooler Crankshaft Assembly with Gear 6308 Bearing for 188F Generator |
This crankshaft kit is perfect for anyone who needs a reliable and durable replacement part for their 188F generator or other small engines. It’s ideal for DIY enthusiasts, gardeners, and professionals working with generators, lawn mowers, or agricultural machinery. |
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Anfigo 16 Teeth Crankshaft Assembly Compatible with GY6 QMB139 50cc-80cc Chinese Scooter ATV with 4 Stroke Engines |
This Anfigo 16 Teeth Crankshaft Assembly is perfect for owners of GY6 QMB139 50cc-80cc Chinese scooters or ATVs with 4-stroke engines. It’s ideal for those needing a reliable replacement part to keep their vehicle running smoothly. |
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Fdit Tapered Crankshaft Assembly with Gear 6308 Bearing for 188F Generator Replacement Forged Steel Crankshaft for 5kw Single Cylinder Air Cooler Generator Micro Cultivator Lawn |
This is perfect for mechanics and DIY users who want a strong, easy‑fit part that keeps their machines running smooth. It also suits anyone who needs a tough crankshaft for heavy‑duty tools and farm gear. |
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GM Crankshaft Reluctor Wheel Timing Crank Gear Exciter Ring 2.4L Ecotec 12578661 |
This OEM part is perfect for anyone who wants smooth, steady engine timing on a 2.4L Ecotec. It’s great for drivers who want a fresh, reliable replacement that fits right and works right. |
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Buxatina 2204729 Crankshaft & Connecting Rod Kit for Polaris RZR 570 2012-2017, for ACE 570 2016-2017, for Ranger 570 Sportsman 570 2014-2017 Crankshaft Assembly Replace# 1204465 1205024 |
This product is perfect for riders who want their Polaris 570 engine to run smooth and strong again. It’s great for anyone who needs a direct-fit, high‑quality crankshaft kit they can trust. |
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Crankshaft Balancer Assembly fits Ford 555B 5610 7000 555 755B 5340 6710 7700 A64 5110 6600 7410 550 5200 6700 7610 655A 5100 5900 7200 655 5000 5700 7100 755 5190 6610 7600 555A 6500 5600 6810 7710 |
This Crankshaft Balancer Assembly is perfect for Ford tractor and equipment owners who need a reliable replacement part. It’s easy to install and fits many models, saving you time and hassle. |
Detailed Reviews
Discover the best crankshaft gear assemblies with our simple guide.
Each review shows clear strength and value.
Our expert picks give you fast, clean power.
Read on to boost your engine’s life.
1. Titan 704-173 or 704-173A or 704173 Crankshaft and Gear Assembly
The Titan 704-173 Crankshaft and Gear Assembly is built for smooth, steady power. It fits well. It runs clean. It lasts long.
This strong part helps your tool work right. It keeps motion firm and easy.
You get solid build, simple use, and real value. It works hard. It stays reliable. It keeps your job moving.
| Pros | Cons |
|---|---|
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Perfect For:
This crankshaft and gear assembly is perfect for anyone who wants a smooth-running Titan sprayer with strong, steady power. It’s great for people who need a fast, simple fix that keeps their tool working like new.
Ready to Purchase?
2. 16T Crankshaft Assembly for GY6/QMB139 50cc to 80cc 4 stroke engines
The 16T crankshaft assembly gives your engine smooth, strong power. It fits GY6/QMB139 50cc to 80cc motors with ease. It installs fast and works great.
The build is strong and rust‑free. It lasts a long time.
You get better pull, better speed, and better balance. Your engine runs cooler and with less strain. Every ride feels smooth, steady, and sure.
| Pros | Cons |
|---|---|
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Perfect For:
This part is perfect for riders, DIY mechanics, and engine tuners who want smooth power and strong performance with simple, direct fit. It suits anyone who wants a fast, steady, and reliable ride.
Ready to Purchase?
3. ThpeMakcr Timing Chain Gear Sprocket with Gasket Screw Replacement for Audi A4 A6 Q5 Q7 Volkswagen Tiguan # 06H103319Q
The ThpeMakcr Timing Chain Gear Sprocket Kit helps keep your engine in smooth sync. It is built to match key Audi and Volkswagen models with ease.
You get a full set with a timing chain gear, intermediate shaft, o‑ring, gasket, and set screws. It matches many OEM reference numbers for simple, clear fit checks.
It fits select models. It is easy to match. It gives steady engine timing.
| Pros | Cons |
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Perfect For:
This product is perfect for drivers who want a smooth, strong, and safe engine. It is great for anyone fixing or upgrading an Audi or Volkswagen.
Ready to Purchase?
4. GM Genuine Parts 12634113 Crankshaft Gear
The GM Genuine Parts 12634113 Crankshaft Gear is a reliable and high-quality component. It is designed and engineered by GM to meet strict standards.
This part may have previously appeared as ACDelco GM Original Equipment (OE). GM regularly updates its designs to include new materials and technologies.
Easy to install, built to last, and backed by General Motors. This gear is specifically validated for your Chevrolet, Buick, GMC, or Cadillac.
| Pros | Cons |
|---|---|
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Perfect For:
This part is perfect for drivers who want a strong, true-fit gear for their GM engine. It is great for anyone who wants real, tested, GM‑made quality.
Ready to Purchase?
5. Tapered Crankshaft, Engine Crankshaft kit, 5kw Single Cylinder Air Cooler Crankshaft Assembly with Gear 6308 Bearing for 188F Generator
Tapered Crankshaft is a versatile and durable solution for your equipment needs. It fits many machines, from generators to garden tools. This crankshaft is built to last and perform well.
Made from high-quality forged steel, it resists wear and tear. The complete assembly includes gears and 6308 bearings. It’s a sturdy replacement that ensures stable performance.
Easy to install, it extends your machine’s life. Perfect for 188F generators and 5kw models. A reliable choice for industrial and gardening tasks.
| Pros | Cons |
|---|---|
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Perfect For:
This crankshaft kit is perfect for anyone who needs a reliable and durable replacement part for their 188F generator or other small engines. It’s ideal for DIY enthusiasts, gardeners, and professionals working with generators, lawn mowers, or agricultural machinery.
Ready to Purchase?
6. Anfigo 16 Teeth Crankshaft Assembly Compatible with GY6 QMB139 50cc-80cc Chinese Scooter ATV with 4 Stroke Engines
This crankshaft assembly is built for smooth power. It fits GY6 QMB139 50cc–80cc engines. It keeps your ride steady and strong.
You get a 16‑tooth gear and a 41.4mm stroke. The size is set for a clean, easy fit.
The alloy build gives stable, long‑lasting use. You also get one full crankshaft assembly in the pack.
| Pros | Cons |
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Perfect For:
This Anfigo 16 Teeth Crankshaft Assembly is perfect for owners of GY6 QMB139 50cc-80cc Chinese scooters or ATVs with 4-stroke engines. It’s ideal for those needing a reliable replacement part to keep their vehicle running smoothly.
Ready to Purchase?
7. Fdit Tapered Crankshaft Assembly with Gear 6308 Bearing for 188F Generator Replacement Forged Steel Crankshaft for 5kw Single Cylinder Air Cooler Generator Micro Cultivator Lawn
The Fdit tapered crankshaft gives your machine strong, steady power. It fits many tools with ease. It keeps your engine running smooth.
Made from forged steel, it stays tough. It lasts a long time.
This crankshaft comes with a gear and 6308 bearing for quick setup. It installs fast with no changes needed. It brings new life to your 188F engine.
| Pros | Cons |
|---|---|
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Perfect For:
This is perfect for mechanics and DIY users who want a strong, easy‑fit part that keeps their machines running smooth. It also suits anyone who needs a tough crankshaft for heavy‑duty tools and farm gear.
Ready to Purchase?
8. GM Crankshaft Reluctor Wheel Timing Crank Gear Exciter Ring 2.4L Ecotec 12578661
GM Crankshaft Reluctor Wheel is a brand new OEM part. It fits 2.4L Ecotec engines. The part number is 12578661.
This timing crank gear exciter ring ensures precise engine timing. It’s a reliable replacement for your vehicle.
| Pros | Cons |
|---|---|
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Perfect For:
This OEM part is perfect for anyone who wants smooth, steady engine timing on a 2.4L Ecotec. It’s great for drivers who want a fresh, reliable replacement that fits right and works right.
Ready to Purchase?
9. Buxatina 2204729 Crankshaft & Connecting Rod Kit for Polaris RZR 570 2012-2017, for ACE 570 2016-2017, for Ranger 570 Sportsman 570 2014-2017 Crankshaft Assembly Replace# 1204465 1205024
The Buxatina 2204729 Crankshaft & Connecting Rod Kit is a perfect fit for several Polaris models. It works with Polaris ACE 570, RZR 570, Ranger 570, and Sportsman 570 from specific years.
This kit includes a crankshaft with balancer shaft gear and a connecting rod. It weighs 15.43 pounds and comes with a 1-year quality guarantee.
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for riders who want their Polaris 570 engine to run smooth and strong again. It’s great for anyone who needs a direct-fit, high‑quality crankshaft kit they can trust.
Ready to Purchase?
10. Crankshaft Balancer Assembly fits Ford 555B 5610 7000 555 755B 5340 6710 7700 A64 5110 6600 7410 550 5200 6700 7610 655A 5100 5900 7200 655 5000 5700 7100 755 5190 6610 7600 555A 6500 5600 6810 7710
The Crankshaft Balancer Assembly gives your Ford machine smooth, steady power. It fits a wide range of Ford tractors and industrial models with ease.
It has 2 strong gears. Each gear has 39 teeth. It also replaces OEM D3NN6A311A and D9NN6A311AD with a perfect fit.
| Pros | Cons |
|---|---|
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Perfect For:
This Crankshaft Balancer Assembly is perfect for Ford tractor and equipment owners who need a reliable replacement part. It’s easy to install and fits many models, saving you time and hassle.
Ready to Purchase?
Buying Guide
Find the gear that keeps your engine running clean and strong.
A good crankshaft gear assembly gives smooth power and long life.
‑ Brand: Pick a name that is known for quality.
A reputable brand shows that tests were done.
It also means you can find help if needed.
‑ Material: Look for forged steel or alloy.
Strong metal resists wear.
It will last in hot engines.
‑ Compatibility: Match the part number to your engine.
Wrong fit causes wear or failure.
Check the catalog before buying.
‑ Gear Teeth: Note how many teeth the gear has.
More teeth give better smoothness.
Too few can wobble.
‑ Weight: A lighter gear saves weight.
It also reduces engine load.
Heavy gear can slow speed.
‑ Build Quality: Inspect the finish.
Smooth finish prevents chafing.
Missing spots show poor work.
‑ Ease of Installation: Simple fits mean less labor.
Check if all bolts are included.
No extra tools need.
‑ Warranty: A good warranty signals confidence.
It protects against odd failures.
Short periods are fine.
‑ Torque Specs: Buy parts that include torque data.
It helps dial the correct tightness.
Too loose or tight can damage.
‑ Heat Resistance: Parts that resist high heat stay strong.
Engine parts get hot constantly.
Choose parts that cool fast.
‑ Price: Balance cost and quality.
Cheapest not always best.
Look for fair price for good build.
Use this guide to pick a crankshaft gear assembly that fits your engine and keeps it running smooth.