This is a brand-new, aftermarket Synchro A6137, designed as a direct replacement part for Eaton Fuller FS4205 and FS5205 transmissions. It’s a durable, high-quality component built to OEM specifications.
- Synchro A6137 (A-6137)
- Direct replacement for Eaton Fuller FS4205 and FS5205 transmissions
- Brand New
- 1-year quality warranty
- 15-Years Supplier
Eaton Fuller Transmission Parts: Product Description
This Synchro ASSY A6137 is a critical component in Eaton Fuller transmissions, specifically the FS4205 and FS5205 models. The synchronizer assembly, or sync ASSY, ensures smooth gear changes by synchronizing the speed of the gears during shifting. A worn or damaged synchro can lead to grinding, jumping out of gear, and difficulty shifting.
This synchro replacement from HH AutoParts is a reliable and cost-effective solution for restoring the performance of your Eaton Fuller transmission. As a trusted supplier of Eaton Fuller transmission parts for over 15 years, we’ve served customers in over 50 countries.
Synchro A6137 Data Sheet
| Description | Synchronizer |
| Ref. No. | A6137, A-6137 |
| Application | Eaton Fuller Transmission FS4205, FS5205 |
| Condition | Aftermarket |
| Origin | Made in China |
Benefits of HH AutoParts’ Synchro Replacement
- Restored Shifting Performance: Eliminate gear grinding and ensure smooth shifts.
- OEM Compatible Synchronizer: Designed to meet or exceed OEM specifications for optimal fit and function.
- Durability: Constructed with high-quality materials for long-lasting performance.
- Fast Delivery: We offer delivery times ranging from 7 to 60 days, depending on your location and the items ordered.
Applications: Eaton Fuller Transmissions
This Synchro A6137 is compatible with Eaton Fuller FS4205 and FS5205 transmissions. These transmissions are commonly found in a variety of heavy-duty vehicles, including:
- Class 8 Trucks
- Vocational Trucks
- Off-Highway Equipment

Get Your Replacement Synchro A6137
Don’t let a worn synchronizer compromise the performance of your Eaton Fuller transmission. Order your replacement Synchro A6137 from HH AutoParts today and experience the difference a quality part can make!
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